14.4 Co-channel rejection

3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

14.4.1 Co-channel rejection – TCH/FS

14.4.1.1 Definition

The co-channel rejection is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted modulated signal, both signals being at the nominal frequency of the receiver.

14.4.1.2 Conformance requirement

1. At reference co-channel interference the TCH/FS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

2. At reference co-channel interference the TCH/FS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

3. At reference co-channel interference the TCH/FS class II BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

14.4.1.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUlow with no frequency hopping with an allowance for the statistical significance of the test.

2. To verify that the MS does not exceed conformance requirement 2 under propagation condition TUlow with no frequency hopping, with an allowance for the statistical significance of the test.

3. To verify that the MS does not exceed conformance requirement 3 under propagation condition TUlow with no frequency hopping with an allowance for the statistical significance of the test.

4. To verify that the non-DARP capable MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.

5. To verify that the non-DARP capable MS does not exceed conformance requirement 2 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.

6. To verify that the non-DARP capable MS does not exceed conformance requirement 3 under propagation condition TUhigh with frequency hopping with an allowance for the statistical significance of the test.

14.4.1.4 Method of test

14.4.1.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/FS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).

Specific PICS Statements:

– DARP phase 1 supported (TSPC_DARP_Phase1)

– DARP phase 2 supported (TSPC_DARP_Phase2)

PIXIT Statements:

–

14.4.1.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

b) The SS compares the modulation of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.

c) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.

d) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.

e) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.

f) For the non-DARP capable MS, steps a) to e) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping band is centred around an ARFCN in the Mid ARFCN range.

14.4.1.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-15.

Table 14-15: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/FS	FER	TUlow/No FH	24*	25 000
TCH/FS Class Ib	RBER	TUlow/No FH	2,091/	3 300 000
TCH/FS Class II	RBER	TUlow/No FH	4,3	2 000 000
TCH/FS	FER	TUhigh/FH	3,371*	17 800
TCH/FS class Ib	RBER	TUhigh/FH	0,215/	2 000 000
TCH/FS class II	RBER	TUhigh/FH	8,333	1 200 000

The parameter  can range from 1 to 1.6. The value of  for the RBER test on TCH/FS class Ib bits under particular measurement conditions shall be the same as that determined in the FER test on TCH/FS under the same conditions.

14.4.1a Co-channel rejection – TCH/FS in TIGHTER configuration

14.4.1a.1 Definition

14.4.1a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).

The reference performance shall be:

Table 6.3-6 Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

In addition to table 6.3-6, for speech channels the residual class Ib BER and residual class II BER performance shall not exceed the specified values in table 2ad at the corresponding interference ratio C/Ic.

14.4.1a.3 Test purpose

1. For TCH/FS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co-channel interference the TCH/FS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

3. At reference co-channel interference the TCH/FS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.1a.4 Method of test

14.4.1a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/FS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal) at the level -93 dBm + Ir + Corr, where:

Ir = the interference ratio according to table 2ad\

Corr = the correction factor for reference performance according to table 6.2-4.

The SS commands the MS to create the traffic channel loop back, signalling erased frames.

Specific PICS Statements:

–

PIXIT Statements:

–

14.4.1a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) 7 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

b) The SS compares the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding and checks the frame erasure indication.

14.4.1a.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.1a.5-1 and 14.4.1a.5-2.

Table 14.4.1a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection

Channels	Propagation conditions TUlow/NoFH
	Test limit error rate %	Minimum No. of samples
TCH/FS
FER	1	25 000
class Ib(RBER)	0,05	3 300 000
class II(RBER)	0,6	2 000 000

Table 14.4.1a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection

Channels	Propagation conditions TUlow/NoFH
	Test limit error rate %	Minimum No. of samples
TCH/FS
FER	1	25 000
class Ib(RBER)	0,05	3 300 000
class II(RBER)	0,6	2 000 000

14.4.2 Co-channel rejection – TCH/HS

14.4.2.1 Definition

–

14.4.2.2 Conformance requirement

1. At reference co channel interference, the TCH/HS FER (shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

2. At reference co channel interference, the TCH/HS class Ib BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

3. At reference co channel interference, the TCH/HS class II BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

4. At reference co channel interference, the TCH/HS UFR shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

5. At reference co channel interference, the TCH/HS class Ib RBER ((BFI or UFI)=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

14.4.2.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.

2. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.

3. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh with frequency hopping, with an allowance for the statistical significance of the test.

4. To verify that the MS does not exceed conformance requirement 4, under propagation condition TUhigh with frequency hopping, with an allowance for the statistical significance of the test.

5. To verify that the MS does not exceed conformance requirement 4, under propagation condition TUhigh with frequency hopping, with an allowance for the statistical significance of the test.

14.4.2.4 Method of test

14.4.2.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/HS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.2.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.

c) The SS commands the MS to create traffic channel loop back signalling erased frames using test loop A.

NOTE 1: Test loop A is defined in clause 36. Frames marked with BFI=1 are signalled as erased on the uplink.

d) The SS compares the modulation of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.

e) The SS determines the number of residual bit error events for the bits of class II, by examining at least the minimum number of samples of consecutive bits of class II. Bits are taken only from those frames not signalled as erased.

f) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.

g) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.

h) The SS commands the MS to open test loop A and close test loop D.

NOTE 2: Test loop D is defined in clause 36. Frames marked as erased (BFI=1), or unreliable (UFI=1), are signalled to the SS on the uplink.

j) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the erased/unreliable frame indication.

k) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased/unreliable.

l) The SS also determines the unreliable frame events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased/unreliable.

14.4.2.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-16 or table 14-17.

Table 14-16: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel/Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/HS FER	TUhigh/FH	5,607	10 700
TCH/HS Class Ib RBER (BFI=0)	TUhigh/FH	0,325	184 700
TCH/HS Class II RBER (BFI=0)	TUhigh/FH	7,961	25 500
TCH/HS UFR	TUhigh/FH	6,834	8 780
TCH/HS Class Ib RBER ((BFI or UFI)=0)	TUhigh/FH	0,235	255 000

Table 14-17: Limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel/Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/HS FER	TUhigh/FH	5,607	10 700
TCH/HS Class Ib RBER (BFI=0)	TUhigh/FH	0,325	184 700
TCH/HS Class II RBER (BFI=0)	TUhigh/FH	7,961	25 500
TCH/HS UFR	TUhigh/FH	6,834	8 780
TCH/HS Class Ib RBER ((BFI or UFI)=0)	TUhigh/FH	0,235	255 000

14.4.2a Co-channel rejection – TCH/HS in TIGHTER configuration

14.4.2a.1 Definition

14.4.2a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).

The reference performance shall be:

Table 6.3-6 Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

14.4.2a.3 Test purpose

1. For TCH/HS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co channel interference, the TCH/HS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

3. At reference co channel interference, the TCH/HS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.2a.4 Method of test

14.4.2a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/HS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal) at the level -93 dBm + Ir + Corr, where:

Ir = the interference ratio according to table 2ad\

Corr = the correction factor for reference performance according to table 6.2-4.

Specific PICS Statements:

–

14.4.2a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) 0 dB below that of the wanted signal.

c) The SS commands the MS to create traffic channel loop back signalling erased frames using test loop A.

NOTE 1: Test loop A is defined in clause 36. Frames marked with BFI=1 are signalled as erased on the uplink.

14.4.2a.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.2a.5-1or table 14.4.2a.5-2.

Table 14.4.2a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection

Channels	Propagation conditions TUhigh		Propagation conditions RA
	Test limit error rate %	Minimum No. of samples	Test limit error rate %	Minimum No. of samples
TCH/HS
FER	1	10 700
class Ib(RBER)	0,24	184 700
class II(RBER)	4,16	25 500	5,19	24 000

Table 14.4.2a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection

Channels	Propagation conditions TUhigh		Propagation conditions RA
	Test limit error rate %	Minimum No. of samples	Test limit error rate %	Minimum No. of samples
TCH/HS
FER	1	10 700
class Ib(RBER)	0,24	184 700
class II(RBER)	4,08	25 500	5,13	24 000

14.4.3 Void

14.4.4 Co-channel rejection – FACCH/F

14.4.4.1 Definition

14.4.4.2 Conformance requirement

At reference co channel interference the FACCH/F FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3).

14.4.4.3 Test purpose

To verify that the MS does not exceed the conformance requirement under propagation condition TUlow with an allowance for the statistical significance of the test.

14.4.4.4 Method of test

14.4.4.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.4.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-channel interference, the MS may not be able to acknowledge the Layer 2 frame. Each repeated L2 frame indicates a frame erasure event. The SS determines the number of frame erasure events during at least the minimum number of samples of FACCH/F frames.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.

14.4.4.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-19.

Table 14-19: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
FACCH/F	FER	TUlow/No FH	24	25 000

14.4.4a Co-channel rejection – FACCH/F in TIGHTER configuration

14.4.4a.1 Definition

14.4.4a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For signalling channels (FACCH/F, FACCH/H, SDCCH)

FER:

 5 %

14.4.4a.3 Test purpose

For FACCH/F FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

14.4.4a.4 Method of test

14.4.4a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.4a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2ad.

The fading characteristic of the wanted and the interfering signal is TUlow no FH.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.

14.4.4a.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.4a.5-1.

Table 14.4.4a.5-1: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
FACCH/F	FER	TUlow/No FH	5	25 000

14.4.5 Co-channel rejection – FACCH/H

14.4.5.1 Definition

–

14.4.5.2 Conformance requirement

At reference co channel interference the FACCH/H FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3).

14.4.5.3 Test purpose

To verify that the MS does not exceed the conformance requirement under propagation condition TUlow with an allowance for the statistical significance of the test.

14.4.5.4 Method of test

14.4.5.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH with an ARFCN in the mid ARFCN range. For MS supporting half rate speech this shall be a TCH/HS. For MS not supporting TCH/HS one of the supported TCH/(AHS, H4,8, or H2,4) shall be used. The power control level is set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.5.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degrade.

14.4.5.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-20.

Table 14-20: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
FACCH/H	FER	TUlow/No FH	24,000	25 000

14.4.5a Co-channel rejection – FACCH/H in TIGHTER configuration

14.4.5a.1 Definition

14.4.5a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For signalling channels (FACCH/F, FACCH/H, SDCCH)

FER:

 5 %

14.4.5a.3 Test purpose

For FACCH/H FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

14.4.5a.4 Method of test

14.4.5a.4.1 Initial conditions

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.5a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The fading characteristic of the wanted and the interfering signal is TUlow no FH.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degrade.

14.4.5a.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.5a.5-1.

Table 14.4.5a.5-1: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
FACCH/H	FER	TUlow/No FH	5	25 000

14.4.6 Co-channel rejection – TCH/EFS

14.4.6.1 Definition

14.4.6.2 Conformance requirement

1. At reference co-channel interference the TCH/EFS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

2. At reference co-channel interference the TCH/EFS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

3. At reference co-channel interference the TCH/EFS class II BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

14.4.6.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.

2. To verify that the MS does not exceed conformance requirement 2 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping, with an allowance for the statistical significance of the test.

3. To verify that the MS does not exceed conformance requirement 3 under propagation condition TUhigh with frequency hopping and TUlow with no frequency hopping with an allowance for the statistical significance of the test.

14.4.6.4 Method of test

14.4.6.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/EFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).

14.4.6.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

f) Steps a) to e) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.

14.4.6.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-21.

Table 14-21: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/EFS	FER	TUlow/No FH	24	25 000
TCH/EFS Class Ib	RBER	TUlow/No FH	0,209	3 300 000
TCH/EFS Class II	RBER	TUlow/No FH	3,039	2 000 000
TCH/EFS	FER	TUhigh/FH	3,357	17 800
TCH/EFS class Ib	RBER	TUhigh/FH	0,115	2 000 000
TCH/EFS class II	RBER	TUhigh/FH	8,333	1 200 000

14.4.6a Co-channel rejection – TCH/EFS in TIGHTER configuration

14.4.6a.1 Definition

14.4.6a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for cochannel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

14.4.6a.3 Test purpose

1. For TCH/EFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co-channel interference the TCH/EFS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

3. At reference co-channel interference the TCH/EFS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.6a.4 Method of test

14.4.6a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/EFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36.1.2.1.1.1).

14.4.6a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The fading characteristic of the wanted and the interfering signal is TUlow no FH.

14.4.6a.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.6a.5-1 and 14.4.6a.5-2.

Table 14.4.6a.5-1: Limits for GSM 850 and GSM 900 co-channel rejection

Channels	Propagation conditions TUhigh/FH		Propagation conditions TUlow/No FH
	Test limit error rate %	Minimum No. of samples	Test limit error rate %	Minimum No. of samples
TCH/EFS
FER	1	17 800	1	25 000
class Ib(RBER)	0,09	2 000 000	0,19	3 300 000
class II(RBER)	4,92	1 200 000	0,62	2 000 000

Table 14.4.6a.5-2: Limits for DCS 1 800 and PCS 1 900 co-channel rejection

Channels	Propagation conditions TUhigh/FH		Propagation conditions TUlow/No FH
	Test limit error rate %	Minimum No. of samples	Test limit error rate %	Minimum No. of samples
TCH/EFS
FER	1	17 800	1	25 000
class Ib(RBER)	0,09	2 000 000	0,19	3 300 000
class II(RBER)	4,54	1 200 000	0,62	2 000 000

14.4.7 Receiver performance in the case of frequency hopping and co‑channel interference on one carrier

14.4.7.1 Definition

The GSM receiver is specified to be able to handle one out of four carriers being strongly interfered with, if frequency hopping is applied. This is used in networks to increase the capacity.

14.4.7.2 Conformance Requirement

Under the following conditions:

– a useful signal, cyclic frequency hopping over four carriers under static conditions, with equal input levels 20 dB above reference sensitivity level;

– a random, continuous, GMSK-modulated interfering signal on only one of the carriers at a level 10 dB higher than the useful signal,

the FER for TCH/FS shall be less than 5%; 3GPP TS 05.05 subclause 6.6.

14.4.7.3 Test Purpose

To verify that the MS does not exceed the conformance requirement with an allowance for the statistical significance of the test.

14.4.7.4 Method Of Test

14.4.7.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/FS channel in hopping mode, power control level set to maximum power. A cyclic hop pattern covering four frequencies with a minimum carrier distance of 600 kHz is used.

The SS transmits Standard Test Signal C1 on the traffic channel with a power level 20 dB above reference sensitivity level (wanted signal). No fading is applied.

The SS commands the MS to create the traffic channel loop back, signalling erased frames.

14.4.7.4.2 Test Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) on one of the hopping frequencies of the wanted signal, and on the timeslot used by the wanted signal. The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 10 dB above that of the wanted signal. No fading characteristics are applied.

b) The SS compares the data of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.

c) The SS determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.

14.4.7.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate value given in the following table.

Channel	Type of measurement	Propagation condition	Test limit error rate (%)	Minimum No. of samples
TCH/FS	FER	Static	6.1	3 300

14.4.8 Co-channel rejection – TCH/AFS

14.4.8.1 Definition

14.4.8.2 Conformance requirement

1. At reference co-channel interference the TCH/AFS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

2. At reference co-channel interference the TCH/AFS class Ib BER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

14.4.8.3 Test purpose

14.4.8.4 Method of test

14.4.8.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 7,95 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

Specific PICS Statements:

– DARP phase 1 supported (TSPC_DARP_Phase1)

– DARP phase 2 supported (TSPC_DARP_Phase2)

PIXIT Statements:

–

14.4.8.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The interference ratio is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow (TU3 for T-GSM 810, GSM850 and GSM900, TU1,5 for GSM1800 and GSM1900).

c) The SS determines the number of residual bit error events for the bits of the class Ib, by examining at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.

d) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully it is not signalled as erased.

e) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps b) to d) are repeated.

f) The interference ratio is set to 3 dB below the reference interference ratio (+9 dB ‑ 3 dB), meaning that the amplitude of the interferer is 6 dB below that of the wanted signal.

g) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps b) to d) are repeated.

h) If the MS is DARP capable, the following steps are omitted.

i) The SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred on an ARFCN in the Mid ARFCN range. The interference ratio is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal. The fading characteristic of the wanted and the interfering signal is TUHigh (TU50 for T-GSM 810, GSM850 and GSM900, GSM1800 and GSM1900).

j) The SS uses a Channel Mode Modify procedure to change the active codec set to 12,2 kbit/s and steps b) to d) are repeated.

k) The SS uses a Channel Mode Modify procedure to change the active codec set to 10,2 kbit/s and steps b) to d) are repeated.

l) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to d) are repeated.

m) The interference ratio is set to 3 dB below the reference interference ratio (+9 dB ‑ 3 dB), meaning that the amplitude of the interferer is 6 dB below that of the wanted signal.

n) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps b) to d) are repeated.

o) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to d) are repeated.

Maximum/Minimum Duration of Test

Non-DARP MS

– Maximum: 3 hours (GSM850, GSM900), 4 hours (DCS1800, PCS1900).

– Minimum: 1 hour (GSM850, GSM900, DCS1800, PCS1900).

DARP MS

– Maximum/minimum: 42 minutes (GSM850, GSM900, DCS1800, PCS1900).

14.4.8.5 Test requirements

Testing the Co‑channel interference performance is performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with BER/BLER not on the limit.

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex A7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step.

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure 14‑1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed for fading profiles greater than 5km/h, and 250 wavelengths are crossed for fading profiles less than or equal to 5km/h. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14-48: Minimum test times due to TU low fading conditions

Full Rate 3 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelenth	0,75	0,43	0,35	0,33	–	–	m
min test time	1800	1029	847	800	–	–	S
	0:30:00	0:17:09	0:14:07	0:13:20	–	–	hh:mm:ss

Full Rate 1,5 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelenth	–	–	–	–	0,17	0,16	m
min test time	–	–	–	–	800	758	s
	–	–	–	–	0:13:20	0:12:38	hh:mm:ss

Table 14-49: Minimum test times due to TU high fading conditions

Full Rate 50 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	428	244	201	190	95	90	s
	0:07:08	0:04:04	0:03:21	0:03:10	0:01:35	0:01:30	hh:mm:ss

If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is done by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14-49 or 14-50.

Co-channel rejection tests with a frequency condition noted as "@-ndB" are performed for an interference ratio n dB below the reference interference ratio (see 3GPP TS 45.005).

Table 14-49: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 TU low no FH

TU low no FH
0.4 to 0.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 7.95	frames	7950	50	0,130000	0,160420	2151	43	00:00:43
	Class1b	7950	4200	0,006600	0,008144	42360	10	00:00:10
AFS 5.9	frames	5900	50	0,100000	0,123400	2796	56	00:00:56
	Class1b	5900	3150	0,003800	0,004689	73573	23	00:00:23
AFS 4.75	frames @-3dB	4750	50	0,170000	0,209780	1645	33	00:00:33
	Class1b@-3dB	4750	2800	0,006200	0,007651	45093	16	00:00:16

Table 14-50: Statistical test limits for GSM 400, GSM 700, GSM 850 and GSM 900 TU high with FH

TU high FH
0.4 to 0.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 12.2	frames	12200	50	0,035000	0,043190	7988	160	00:02:40
	Class1b	12200	8150	0,017000	0,020978	16446	2	00:00:02
AFS 10.2	frames	10200	50	0,014000	0,017276	19970	399	00:06:39
	Class1b	10200	6950	0,002100	0,002591	133133	19	00:00:19
AFS 7.4	frames	7400	50	0,001600	0,001974	174737	3495	00:58:15
	Class1b	7400	4350	0,000320	0,000395	873683	201	00:03:21
AFS 6.7	Frames@ -3dB	6700	50	0,012000	0,014808	23298	466	00:07:46
	Class1b@ -3dB	6700	3950	0,006000	0,007404	46596	12	00:00:12
AFS 5.15	frames @-3dB	5150	50	0,004700	0,005800	59485	1190	00:19:50
	Class1b@-3dB	5150	2700	0,001100	0,001357	254162	94	00:01:34

Table 14-51: Statistical test limits for DCS 1 800 and PCS 1 900 TU low no FH

TU low no FH
1.8 and 1.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 7.95	frames	7950	50	0,130000	0,160420	2151	43	00:00:43
	Class1b	7950	4200	0,006700	0,008268	41728	10	00:00:10
AFS 5.9	frames	5900	50	0,100000	0,123400	2796	56	00:00:56
	Class1b	5900	3150	0,003800	0,004689	73573	23	00:00:23
AFS 4.75	frames @-3dB	4750	50	0,170000	0,209780	1645	33	00:00:33
	Class1b@-3dB	4750	2800	0,006100	0,007527	45833	16	00:00:16

Table 14-52: Statistical test limits for DCS 1 800 and PCS 1 900 TU high with FH

TU high FH
1.8 and 1.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 12.2	frames	12200	50	0,027000	0,033318	10355	207	00:03:27
	Class1b	12200	8150	0,016000	0,019744	17474	2	00:00:02
AFS 10.2	frames	10200	50	0,009800	0,012093	28528	571	00:09:31
	Class1b	10200	6950	0,001700	0,002098	164458	24	00:00:24
AFS 7.4	frames	7400	50	0,000830	0,001024	336842	6737	01:52:17
	Class1b	7400	4350	0,000200	0,000247	1397893	321	00:05:21
AFS 6.7	Frames @-3dB	6700	50	0,008200	0,010119	34094	682	00:11:22
	Class1b@-3dB	6700	3950	0,005100	0,006293	54819	14	00:00:14
AFS 5.15	frames @-3dB	5150	50	0,002600	0,003208	107530	2151	00:35:51
	Class1b@-3dB	5150	2700	0,000720	0,000888	388304	144	00:02:24

14.4.8a Co-channel rejection – TCH/AFS in TIGHTER configuration

14.4.8a.1 Definition

14.4.8a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for co channel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

14.4.8a.3 Test purpose

1. For TCH/AFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co-channel interference the TCH/AFS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.8a.4 Method of test

14.4.8a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 7,95 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

Specific PICS Statements:

–

PIXIT Statements:

–

14.4.8a.4.2 Procedure

a) The fading characteristic of the wanted and the interfering signal is TUlow no FH.

b) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

c) The SS compares the modulation of the signal that it sends to the MS with the signal which is looped back from the receiver after demodulation and decoding, and checks the frame erasure indication.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps c) to e) are repeated.

g) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps c) to e) are repeated.

14.4.8a.5 Test requirements

For more information on statistical testing of BER/BLER performance, especially the definitions of limit lines refer to Annex A7.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Table 14.4.8a.5-1: Minimum test times due to TU low fading conditions

Full Rate 3 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelenth	0,75	0,43	0,35	0,33	–	–	M
min test time	1800	1029	847	800	–	–	S
	0:30:00	0:17:09	0:14:07	0:13:20	–	–	hh:mm:ss

Full Rate 1,5 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelenth	–	–	–	–	0,17	0,16	M
min test time	–	–	–	–	800	758	S
	–	–	–	–	0:13:20	0:12:38	hh:mm:ss

The error rate measured in this test shall be tested according to the values given in tables 14.4.8a.5-3 and 14.4.8a.5-4.

Table 14.4.8a.5-3: Statistical test limits for GSM 850 and GSM 900 TU low no FH

TU low no FH
0.4 to 0.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 7.95	frames	7950	50	0,010000	0.012340	27958	560	00:09:20
	Class1b	7950	4200	0.001100	0.001357	254163	61	00:01: 01
AFS 5.9	frames	5900	50	0,010000	0.012340	27958	560	00:09: 20
	Class1b	5900	3150	0.000500	0.000617	559158	178	00:02:58
AFS 4.75	frames	4750	50	0,010000	0.012340	27958	560	00:09:20
	Class1b	4750	2800	0.000600	0.000740	465965	167	00:02:47

Table 14.4.8a.5-4: Statistical test limits for DCS 1800 and PCS 1900 TU low no FH

TU low no FH
1.8 and 1.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
	Channel	bits per sec	clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
AFS 7.95	frames	7950	50	0.010000	0.012340	27958	560	00:09: 20
	Class1b	7950	4200	0.001000	0.001234	279579	67	00:01:07
AFS 5.9	frames	5900	50	0.010000	0.012340	27958	560	00:09: 20
	Class1b	5900	3150	0.000700	0.000864	399399	127	00:02:07
AFS 4.75	frames	4750	50	0.010000	0.012340	27958	560	00:09: 20
	Class1b	4750	2800	0.000600	0.000740	465965	167	00:02:47

14.4.9 to 14.4.15 Void

14.4.16 Co-channel rejection – TCH/AHS

14.4.16.1 Definition

–

14.4.16.2 Conformance requirement

1. At reference co channel interference, the TCH/AHS FER shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

2. At reference co channel interference, the TCH/AHS class Ib BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

3. At reference co channel interference, the TCH/AHS class II BER (BFI=0) shall meet the reference interference performance of table 2 in 3GPP TS 05.05 subclause 6.3.

14.4.16.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.

2. To verify that the MS does not exceed conformance requirement 2, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.

3. To verify that the MS does not exceed conformance requirement 3, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.

14.4.16.4 Method of test

14.4.16.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of a codec set limited to 7,95 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.16.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The interference ratio is set to 3 dB above the reference interference ratio (+9 dB + 3 dB), meaning that the amplitude of the interferer is 12 dB below that of the wanted signal.

b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.

c) The SS commands the MS to create traffic channel loop back signalling erased frames.

NOTE: Frames marked with BFI=1 are signalled as erased on the uplink.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to g) are repeated.

i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps b) to g) are repeated.

j) The interference ratio is set to the reference interference ratio (+9 dB), meaning that the amplitude of the interferer is 9 dB below that of the wanted signal. The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps b) to g) are repeated.

k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to g) are repeated.

l) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps b) to g) are repeated.

Maximum/Minimum Duration of Test

Statistical test method, pre Rel-5 MS

Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 20 minutes (DCS1800), 19 minutes (PCS1900).

Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).

Statistical test method, Rel-5 onwards MS

Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 21 minutes (DCS1800), 20 minutes (PCS1900).

Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).

14.4.16.5 Test requirements

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 6.2

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step.

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure 14‑1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14-53: Minimum test times due to TU high fading conditions

Half Rate 50 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	855	489	403	380	190	180	s
	0:14:15	0:08:09	0:06:43	0:06:20	0:03:10	0:03:00

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14-54 or 14-55.

Co-channel rejection tests with a frequency condition noted as "@+ndB" are performed for an interference ratio n dB above the reference interference ratio (see 3GPP TS 45.005).

Table 14-54: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900

TU high no FH
0.4 to 0.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
			clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
	Channel	bits per sec	class II per s
AHS 7.95	frames @+3dB	7950	50	0,067000	0,082678	4173	83	00:01:23
	Class1b @+3dB	7950	2800	0,010000	0,012340	27958	10	00:00:10
	Class II @+3dB	7950	1800	0,032000	0,039488	8737	5	00:00:05
AHS 7.4	frames @+3dB	7400	50	0,047000	0,057998	5948	119	00:01:59
	Class1b @+3dB	7400	2950	0,005100	0,006293	54819	19	00:00:19
	Class II @+3dB	7400	1400	0,033000	0,040722	8472	6	00:00:06
AHS 6.7	frames @+3dB	6700	50	0,023000	0,028382	12156	243	00:04:03
	Class1b @+3dB	6700	2750	0,003900	0,004813	71687	26	00:00:26
	Class II @+3dB	6700	1200	0,036000	0,044424	7766	6	00:00:06
AHS 5.9	frames	5900	50	0,071000	0,087614	3938	79	00:01:19
	Class1b	5900	2350	0,005700	0,007034	49049	21	00:00:21
	Class II	5900	800	0,065000	0,080210	4301	5	00:00:05
AHS 5.15	frames	5150	50	0,033000	0,040722	8472	169	00:02:49
	Class1b	5150	2100	0,006000	0,007404	46596	22	00:00:22
	Class II	5150	600	0,069000	0,085146	4052	7	00:00:07
AHS 4.75	frames	4750	50	Pre Rel-5: 0,025000 Rel-5: 0,018000	Pre Rel-5: 0,030850 Rel-5: 0,022212	Pre Rel-5: 11184 Rel-5: 15532	Pre Rel-5: 224 Rel-5: 311	Pre Rel-5: 00:03:44 Rel-5: 00:05:11
	Class1b	4750	2200	Pre Rel-5: 0,002900 Rel-5: 0,002200	Pre Rel-5: 0,003579 Rel-5: 0,002715	Pre Rel-5: 96407 Rel-5: 127081	Pre Rel-5: 44 Rel-5: 58	Pre Rel-5: 00:00:44 Rel-5: 00:00:58
	Class II	4750	600	Pre Rel-5: 0,075000 Rel-5: 0,070000	Pre Rel-5: 0,092550 Rel-5: 0,086380	Pre Rel-5: 3228 Rel-5: 3994	Pre Rel-5: 6 Rel-5: 7	Pre Rel-5: 00:00:06 Rel-5: 00:00:07

Table 14-55: Statistical test limits for DCS 1 800 and PCS 1 900

TU high no FH
1.8 and 1.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
			clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
	Channel	bits per sec	class II per s
AHS 7.95	frames @+3dB	7950	50	0,067000	0,082678	4173	83	00:01:23
	Class1b @+3dB	7950	2800	0,010000	0,012340	27958	10	00:00:10
	Class II @+3dB	7950	1800	Pre Rel-5: 0,033000 Rel-5: 0,031000	Pre Rel-5: 0,040722 Rel-5: 0,038254	Pre Rel-5: 8473 Rel-5: 9019	Pre Rel-5: 5 Rel-5: 5	Pre Rel-5: 00:00:05 Rel-5: 00:00:05
AHS 7.4	frames @+3dB	7400	50	Pre Rel-5: 0,054000 Rel-5: 0,049000	Pre Rel-5: 0,066636 Rel-5: 0,060466	Pre Rel-5: 5178 Rel-5: 5706	Pre Rel-5: 104 Rel-5: 114	Pre Rel-5: 00:01:44 Rel-5: 00:01:54
	Class1b @+3dB	7400	2950	Pre Rel-5: 0,006000 Rel-5: 0,005100	Pre Rel-5: 0,007404 Rel-5: 0,006293	Pre Rel-5: 46597 Rel-5: 54819	Pre Rel-5: 16 Rel-5: 19	Pre Rel-5: 00:00:16 Rel-5: 00:00:19
	Class II @+3dB	7400	1400	Pre Rel-5: 0,035000 Rel-5: 0,033000	Pre Rel-5: 0,043190 Rel-5: 0,040722	Pre Rel-5: 7988 Rel-5: 8472	Pre Rel-5: 6 Rel-5: 6	Pre Rel-5: 00:00:06 Rel-5: 00:00:06
AHS 6.7	frames @+3dB	6700	50	0,025000	0,030850	11183	224	00:03:44
	Class1b @+3dB	6700	2750	0,003800	0,004689	73573	27	00:00:27
	Class II @+3dB	6700	1200	Pre Rel-5: 0,039000 Rel-5: 0,035000	Pre Rel-5: 0,048126 Rel-5: 0,043190	Pre Rel-5: 7169 Rel-5: 7988	Pre Rel-5: 6 Rel-5: 7	Pre Rel-5: 00:00:06 Rel-5: 00:00:07
AHS 5.9	frames	5900	50	0,077000	0,095018	3631	73	00:01:13
	Class1b	5900	2350	0,006000	0,007404	46596	20	00:00:20
	Class II	5900	800	Pre Rel-5: 0,069000 Rel-5: 0,064000	Pre Rel-5: 0,085146 Rel-5: 0,078976	Pre Rel-5: 4052 Rel-5: 4368	Pre Rel-5: 5 Rel-5: 5	Pre Rel-5: 00:00:05 Rel-5: 00:00:05
AHS 5.15	frames	5150	50	0,038000	0,046892	7357	147	00:02:27
	Class1b	5150	2100	0,006600	0,008144	42360	20	00:00:20
	Class II	5150	600	0,068000	0,083912	4111	7	00:00:07
AHS 4.75	frames	4750	50	Pre Rel-5: 0,028000 Rel-5: 0,021000	Pre Rel-5: 0,034552 Rel-5: 0,025914	Pre Rel-5: 9985 Rel-5: 13313	Pre Rel-5: 200 Rel-5: 266	Pre Rel-5: 00:03:20 Rel-5: 00:04:26
	Class1b	4750	2200	0,002500	0,003085	111831	51	00:00:51
	Class II	4750	600	Pre Rel-5: 0,075000 Rel-5: 0,070000	Pre Rel-5: 0,09255 Rel-5: 0,086380	Pre Rel-5: 3728 Rel-5: 3994	Pre Rel-5: 6 Rel-5: 7	Pre Rel-5: 00:00:06 Rel-5: 00:00:07

14.4.16.5.2 Fixed testing of BER/BLER performance with minimum number of samples

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-16 or table 14-17.

Table 14-16: Fixed limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS 7.95 (FER)	TUhigh/No FH@+3dB	8.44	8960
TCH/AHS 7.95 Class Ib (RBER)	TUhigh/No FH@+3dB	1.62	60000
TCH/AHS 7.95 Class II (RBER)	TUhigh/No FH@+3dB	4.032	18750
TCH/AHS 7.4 (FER)	TUhigh/No FH@+3dB	6.048	12500
TCH/AHS 7.4 Class Ib (RBER)	TUhigh/No FH@+3dB	0.643	117650
TCH/AHS 7.4 Class II (RBER)	TUhigh/No FH@+3dB	4.158	18200
TCH/AHS 6.7 (FER)	TUhigh/No FH@+3dB	2.898	23000
TCH/AHS 6.7 Class Ib (RBER)	TUhigh/No FH@+3dB	0.491	136000
TCH/AHS 6.7 Class II (RBER)	TUhigh/No FH@+3dB	4.536	15000
TCH/AHS 5.9 (FER)	TUhigh/No FH	8.946	8450
TCH/AHS 5.9 Class Ib (RBER)	TUhigh/No FH	0.718	105270
TCH/AHS 5.9 Class II (RBER)	TUhigh/No FH	8.19	9230
TCH/AHS 5.15 (FER)	TUhigh/No FH	4.158	18190
TCH/AHS 5.15 Class Ib (RBER)	TUhigh/No FH	0.756	100000
TCH/AHS 5.15 Class II (RBER)	TUhigh/No FH	8.694	8700
TCH/AHS 4.75 (FER)	TUhigh/No FH	Pre Rel-5: 3.15 Rel-5: 2.268	Pre Rel-5: 24000 Rel-5: 33333
TCH/AHS 4.75 Class Ib (RBER)	TUhigh/No FH	Pre Rel-5: 0.365 Rel-5: 0.277	Pre Rel-5: 206900 Rel-5: 272730
TCH/AHS 4.75 Class II (RBER)	TUhigh/No FH	Pre Rel-5: 9.45 Rel-5: 8.82	Pre Rel-5: 8000 Rel-5: 8580

Table 14-17: Fixed limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS 7.95 (FER)	TUhigh/No FH@+3dB	8.442	8960
TCH/AHS 7.95 Class Ib (RBER)	TUhigh/No FH@+3dB	1.26	60000
TCH/AHS 7.95 Class II (RBER)	TUhigh/No FH@+3dB	Pre Rel-5: 4.158 Rel-5: 3.906	Pre Rel-5: 18190 Rel-5: 19355
TCH/AHS 7.4 (FER)	TUhigh/No FH@+3dB	Pre Rel-5: 6.804 Rel-5: 6.174	Pre Rel-5: 11120 Rel-5: 12250
TCH/AHS 7.4 Class Ib (RBER)	TUhigh/No FH@+3dB	Pre Rel-5: 0.756 Rel-5: 0.63	Pre Rel-5: 100000 Rel-5: 117730
TCH/AHS 7.4 Class II (RBER)	TUhigh/No FH@+3dB	Pre Rel-5: 4.41 Rel-5: 4.158	Pre Rel-5: 17150 Rel-5: 18200
TCH/AHS 6.7 (FER)	TUhigh/No FH@+3dB	3.15	24000
TCH/AHS 6.7 Class Ib (RBER)	TUhigh/No FH@+3dB	0.479	157900
TCH/AHS 6.7 Class II (RBER)	TUhigh/No FH@+3dB	Pre Rel-5: 4.914 Rel-5: 4.41	Pre Rel-5: 15390 Rel-5: 17150
TCH/AHS 5.9 (FER)	TUhigh/No FH	9.702	7800
TCH/AHS 5.9 Class Ib (RBER)	TUhigh/No FH	0.756	100000
TCH/AHS 5.9 Class II (RBER)	TUhigh/No FH	Pre Rel-5: 8.694 Rel-5: 8.064	Pre Rel-5: 8700 Rel-5: 9375
TCH/AHS 5.15 (FER)	TUhigh/No FH	4.788	15800
TCH/AHS 5.15 Class Ib (RBER)	TUhigh/No FH	0.831	90910
TCH/AHS 5.15 Class II (RBER)	TUhigh/No FH	8.568	8830
TCH/AHS 4.75 (FER)	TUhigh/No FH	Pre Rel-5: 3.528 Rel-5: 2.646	Pre Rel-5: 21430 Rel-5: 28580
TCH/AHS 4.75 Class Ib (RBER)	TUhigh/No FH	0.315	240000
TCH/AHS 4.75 Class II (RBER)	TUhigh/No FH	Pre Rel-5: 9.45 Rel-5: 8.82	Pre Rel-5: 8000 Rel-5: 8580

14.4.16a Co-channel rejection – TCH/AHS in TIGHTER configuration

14.4.16a.1 Definition

14.4.16a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for co channel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

14.4.16a.3 Test purpose

1. For TCH/AHS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co-channel interference the TCH/AHS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

3. At reference co-channel interference the TCH/AHS class II BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.16a.4 Method of test

14.4.16a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of a codec set limited to 7,95 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.16a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.

c) The SS commands the MS to create traffic channel loop back signalling erased frames.

NOTE: Frames marked with BFI=1 are signalled as erased on the uplink.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,4 kbit/s and steps b) to g) are repeated.

i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s and steps b) to g) are repeated.

j) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps b) to g) are repeated.

k) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,15 kbit/s and steps b) to g) are repeated.

l) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps b) to g) are repeated.

Maximum/Minimum Duration of Test

Maximum: 40 minutes (GSM850), 38 minutes (GSM900), 21 minutes (DCS1800), 20 minutes (PCS1900).

Minimum: 40 minutes (GSM850), 38 minutes (GSM900), 19 minutes (DCS1800), 18 minutes (PCS1900).

14.4.16a.5 Test requirements

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 6.2

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Table 14.4.16a.5-1: Minimum test times due to TU high fading conditions

Half Rate 50 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	855	489	403	380	190	180	s
	0:14:15	0:08:09	0:06:43	0:06:20	0:03:10	0:03:00

The error rate measured in this test shall be tested according to the values given in table’s 14.4.16a.5-2 or 14.4.16a.5-3.

Table 14.4.16a.5-2: Statistical test limits for GSM 850 and GSM 900

TU high no FH
0.4 to 0.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
			clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
	Channel	bits per sec	class II per s
AHS 7.95	frames @+3dB	7950	50	0,067000	0,082678	4173	83	00:01:23
	Class1b @+3dB	7950	2800	0,010000	0,012340	27958	10	00:00:10
	Class II @+3dB	7950	1800	0,032000	0,039488	8737	5	00:00:05
AHS 7.4	frames @+3dB	7400	50	0,048000	0,057998	5948	119	00:01:59
	Class1b @+3dB	7400	2950	0,005100	0,006293	54819	19	00:00:19
	Class II @+3dB	7400	1400	0,033000	0,040722	8472	6	00:00:06
AHS 6.7	frames @+3dB	6700	50	0,023000	0,028382	12156	243	00:04:03
	Class1b @+3dB	6700	2750	0,003900	0,004813	71687	26	00:00:26
	Class II @+3dB	6700	1200	0,036000	0,044424	7766	6	00:00:06
AHS 5.9	frames	5900	50	0,071000	0,087614	3938	79	00:01:19
	Class1b	5900	2350	0,005700	0,007034	49049	21	00:00:21
	Class II	5900	800	0,065000	0,080210	4301	5	00:00:05
AHS 5.15	frames	5150	50	0,033000	0,040722	8472	169	00:02:49
	Class1b	5150	2100	0,006000	0,007404	46596	22	00:00:22
	Class II	5150	600	0,069000	0,085146	4052	7	00:00:07
AHS 4.75	frames	4750	50	0,018000	0,022212	15532	311	00:05:11
	Class1b	4750	2200	0,002200	0,002715	127081	58	00:00:58
	Class II	4750	600	0,070000	0,086380	3994	7	00:00:07

Table 14.4.16a.5-3: Statistical test limits for DCS 1 800 and PCS 1 900

TU high no FH
1.8 and 1.9GHz			frames per s	Orig. BER	Derived	Target number	Target test	Target test time
			clas1b per s	requirement	test limit	of samples	time (s)	(hh:mm:ss)
	Channel	bits per sec	class II per s
AHS 7.95	frames @+3dB	7950	50	0,067000	0,082678	4173	83	00:01:23
	Class1b @+3dB	7950	2800	0,010000	0,012340	27958	10	00:00:10
	Class II @+3dB	7950	1800	0,031000	0,038254	9019	5	00:00:05
AHS 7.4	frames @+3dB	7400	50	0,049000	0,060466	5706	114	00:01:54
	Class1b @+3dB	7400	2950	0,005100	0,006293	54819	19	00:00:19
	Class II @+3dB	7400	1400	0,033000	0,040722	8472	6	00:00:06
AHS 6.7	frames @+3dB	6700	50	0,025000	0,030850	11183	224	00:03:44
	Class1b @+3dB	6700	2750	0,003800	0,004689	73573	27	00:00:27
	Class II @+3dB	6700	1200	0,035000	0,043190	7988	7	00:00:07
AHS 5.9	frames	5900	50	0,077000	0,095018	3631	73	00:01:13
	Class1b	5900	2350	0,006000	0,007404	46596	20	00:00:20
	Class II	5900	800	0,064000	0,078976	4368	5	00:00:05
AHS 5.15	frames	5150	50	0,038000	0,046892	7357	147	00:02:27
	Class1b	5150	2100	0,006600	0,008144	42360	20	00:00:20
	Class II	5150	600	0,068000	0,083912	4111	7	00:00:07
AHS 4.75	frames	4750	50	0,021000	0,025914	13313	266	00:04:26
	Class1b	4750	2200	0,002500	0,003085	111831	51	00:00:51
	Class II	4750	600	0,070000	0,086380	3994	7	00:00:07

14.4.17 Co-channel rejection – TCH/AFS-INB

14.4.17.1 Definition

14.4.17.2 Conformance requirement

1. At reference co-channel interference the TCH/AFS-INB FER shall meet the reference interference performance of table 2 in 3GPP TS 45.005 subclause 6.3.

The delays associated with Loop I remain constant for all of the following circumstances:

– For a given MS implementation.

– For the duration of the MS being powered on.

3GPP TS 44.014 subclause 5.1.7a.1.

14.4.17.3 Test purpose

14.4.17.4 Method of test

14.4.17.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of the following set of codecs modes:

Codec Mode	TCH/AFS in kbit/s
CODEC_MODE_4	12,2
CODEC_MODE_3	7,95
CODEC_MODE_2	5,9
CODEC_MODE_1	4,75

The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).

The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/I_norm), shall apply for Codec Mode Command / Request (MC, MR):

MC’/MR’	THR_MC_Dn(MC)/ THR_MR_Dn(MR)	THR_MC_Up(MC)/ THR_MR_Up(MR)
CODEC_MODE_4	18,5 dB	+ 
CODEC_MODE_3	12,5 dB	20,5 dB
CODEC_MODE_2	6,5 dB	14,5 dB
CODEC_MODE_1	 	8,5 dB

The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).

The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).

The SS commands the MS to loop back in band signalling code words by closing a Loop I.

Specific PICS Statements:

– AMR half rate speech supported (TSPC_AddInfo_Half_rate_version_3)

PIXIT Statements:

–

14.4.17.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 6 dB below that of the wanted signal (9 dB – 3 dB less attenuation on the interfering signal).

The fading characteristic of the wanted and the interfering signal is TUlow.

b) The SS shall change the Codec Mode Indication and Codec Mode Command at to the neighbour mode every 22 speech frames (440 ms) by following a scanning pattern (1->2->3->4->4->3->2->1). CMI should initially be increased. CMC should initially be decreased. The CMIC/MC shall be repeated until the minimum required number of frame samples has been sent to the MS.

c) The SS compares the in band signalling code words/frames it sends to the MS with the in band signalling code words/frames which are looped back from the receiver after demodulation and decoding, and checks for in band signalling (CMI/CMC) frame errors.

d) The SS determines the frame error events by examining sequences of at least the minimum number of samples of consecutive frames. All frames should be considered when computing the frame error rate: those corresponding to a downlink CMI/CMC transitions and those without downlink CMI/CMC transitions.

e) If the MS does not support AMR half rate speech, then steps a) to d) are repeated except that in step a) both the wanted and interfering signal are TUhigh hopping and the SS commands the MS into hopping mode. A hopping pattern covering at least 10 frequencies in a range not exceeding 5 MHz is used. The hopping pattern is centred around an ARFCN in the Mid ARFCN range.

NOTE: The delays associated with Loop I are not specified, and will be MS implementation dependant. Loop I should be considered as having two separate parts (DL CMC -> UL CMI and DL CMI -> UL CMR). The delays associated with the two parts may differ. The SS should ensure that the correctly looped in band bits are compared. The delays associated with Loop I will remain constant for the duration of the test, thus every UL frame received by the SS will have only one possible expected value.

Maximum/Minimum Duration of Test

MS supporting AMR half rate speech:

Maximum/minimum: 14 minutes (GSM850, GSM900).

Maximum/minimum: 6 minutes (DCS1800, PCS1900).

MS not supporting AMR half rate speech:

Maximum/minimum: 72 minutes (GSM850, GSM900).

Maximum/minimum: 84 minutes (DCS1800, PCS1900).

14.4.17.5 Test requirements

The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.17-1 or 14.4.17-2.

Co-channel rejection tests with a frequency condition noted as "@ndB" are performed with the interfering frequency transmitted with an additional n dB attenuation, see 3GPP TS 45.005.

Table 14.4.17-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AFS-INB (FER)	TUlow/No FH@-3 dB	4.319	7988
TCH/AFS-INB (FER)	TUhigh/FH@-3 dB	0.197	174737

Table 14.4.17-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AFS-INB (FER)	Tulow/No FH@-3dB	4.319	7988
TCH/AFS-INB (FER)	TUhigh/FH@-3 dB	0.148	232982

14.4.18 Co-channel rejection – TCH/AHS-INB

14.4.18.1 Definition

14.4.18.2 Conformance requirement

1. At reference co channel interference, the TCH/AHS-INB shall meet the reference interference performance of table 2 in 3GPP TS 45.005 subclause 6.3.

The delays associated with Loop I remain constant for all of the following circumstances:

– For a given MS implementation.

– For the duration of the MS being powered on.

3GPP TS 44.014 subclause 5.1.7a.1.

14.4.18.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.

14.4.18.4 Method of test

14.4.18.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of the following set of codecs modes:

Codec Mode	TCH/AHS in kbit/s
CODEC_MODE_4	7,95
CODEC_MODE_3	6,7
CODEC_MODE_2	5,9
CODEC_MODE_1	4.75

The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).

The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/I_norm), shall apply for Codec Mode Command / Request (MC, MR):

MC’/MR’	THR_MC_Dn(MC’)/ THR_MR_Dn(MR’)	THR_MC_Up(MC’)/ THR_MR_Up(MR’)
CODEC_MODE_4	16,0 dB	+
CODEC_MODE_3	12,0 dB	18,0 dB
CODEC_MODE_2	8,0 dB	14,0 dB
CODEC_MODE_1	 	10,0 dB

The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).

The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).

14.4.18.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.

c) The SS commands the MS to loop back band signalling code words by closing a Loop I.

d) The SS shall change the Codec Mode Indication and Codec Mode Command at to the neighbour mode every 22 speech frames (440 ms) by following a scanning pattern (1->2->3->4->4->3->2->1). CMI should initially be increased. CMC should initially be decreased. The CMICMC pattern shall be repeated until the minimum required number of frame samples has been sent to the MS.

e) The SS compares the in band signalling code words/frames it sends to the MS with the in band signalling code words/frames which are looped back from the receiver after demodulation and decoding, and checks for in band signalling (CMI/CMC) frame errors.

f) The SS determines the frame error events by examining sequences of at least the minimum number of samples of consecutive frames. All frames should be considered when computing the frame error rate: those corresponding to a downlink CMI/CMC transitions and those without downlink CMI/CMC transitions.

Maximum/Minimum Duration of Test

Maximum/minimum: 26 minutes (GSM850, GSM900), 25 minutes (DCS1800, PCS1900).

14.4.18.5 Test requirements

The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.18-1 or table 14.4.18-2.

Table 14.4.18-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS-INB (FER)	TUhigh/No FH	0.784	76000

Table 14.4.18-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS-INB (FER)	TUhigh/No FH	0.795	75000

14.4.19 Co-channel rejection – O-TCH/AHS

14.4.19.1 Definition

–

14.4.19.2 Conformance requirement

For 8-PSK modulated channels, speech channels (AMR and AMR-WB), the minimum interference ratio for which the reference performance for co channel interference (C/Ic) shall be met is specified in table 2k

For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: – 93 dBm + Ir + Corr, where:

Ir = the interference ratio according to tables 2b and 2c for packets switched channels, tables 2d and 2e for ECSD and table 2k for speech (AMR and AMR-WB) and associated control channels.
Corr = the correction factor for reference performance according to subclause 6.2

For all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels.

The reference performance is the same as defined in subclause 6.2

The reference performance shall be:

For speech channels (O-TCH/AHSy) FER £ 1%

3GPP TS 45.005, subclauses 6.2, 6.3.

14.4.19.3 Test purpose

To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under TU50 propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/AHS12.2, O-TCH/AHS7.95, O-TCH/AHS5.9 and O-TCH/AHS4.75.

14.4.19.4 Method of test

14.4.19.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 12,2 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

14.4.19.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal). The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal.

b) The fading characteristic of the wanted and the interfering signals are set to TU50.

c) The SS sets the level of the interfering signal to –91dBm.

d) The SS sets the level of the wanted signal to that indicated by C_lev in table 14.4.19-2 or 14.4.19-3.

e) The SS determines the number of residual bit error events for the bits of the class Ib, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib. Bits are only taken from those frames not signalled as erased.

f) The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.

g) The SS uses a Channel Mode Modify procedure to change the active codec set to 7,95 kbit/s and steps c) to f) are repeated.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5,9 kbit/s and steps c) to f) are repeated.

i) The SS uses a Channel Mode Modify procedure to change the active codec set to 4,75 kbit/s and steps c) to f) are repeated.

Maximum/Minimum Duration of Test

Maximum: 38 minutes (GSM850), 38 minutes (GSM900), 38 minutes (DCS1800), 38 minutes (PCS1900).

Minimum: 26 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 13 minutes (PCS1900).

14.4.19.5 Test requirements

Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step.

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14.4.19-1: Minimum test times due to TU high fading conditions

Half Rate 50 km/h
Frequency	0,85	0,9	1,8	1,9	GHz
Wavelength	0,35	0,33	0,17	0,16	m
min test time	403	380	190	180	s
	0:06:43	0:06:20	0:03:10	0:03:00

If the minimum test time due to multipath conditions exceeds the target test time, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14.4.19-2 and 14.4.19.3

Table 14.4.19-2: Statistical test limits for T-GSM 810, GSM 850 and GSM 900 O-TCH/AHS co-channel interference

TU50 / No FH
0.8 to 0.9GHz		C_lev (dBm)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
AHS 12.2	Frames	-74.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-74.5	8150	0,003000	0,003702	93192	12	00:00:12
AHS 7.95	Frames	-76.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-76.5	4200	0,000600	0,000740	466216	111	00:01:51
AHS 5.9	Frames	-78.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-78.0	3150	0,001600	0,001974	174772	56	00:00:56
AHS 4.75	Frames	-79.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-79.0	2800	0,000900	0,001111	310531	111	00:01:51

Table 14.4.19-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/AHS co-channel interference

TU50 / No FH
1.8 to 1.9GHz		C_lev (dBm)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
AHS 10.2	Frames	-74.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-74.5	8150	0,003000	0,003702	93192	12	00:00:12
AHS 5.15	Frames	-76.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-76.5	4200	0,000700	0,000864	399305	96	00:01:36
AHS 5.15	Frames	-78.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-78.5	3150	0,001500	0,001851	186385	60	00:01:00
AHS 5.15	Frames	-79.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	-79.5	2800	0,001000	0,001234	279578	100	00:01:40

14.4.20 Co-channel rejection – O-TCH/AHS-INB

14.4.20.1 Definition

14.4.20.2 Conformance requirement

1. At reference co channel interference, the O-TCH/AHS-INB shall meet the reference interference performance of table 2k in 3GPP TS 45.005 subclause 6.3.

14.4.20.3 Test purpose

1. To verify that the MS does not exceed conformance requirement 1, under propagation conditions TUhigh without frequency hopping, with an allowance for the statistical significance of the test.

14.4.20.4 Method of test

14.4.20.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/AHS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of the following set of codecs modes:

Codec Mode	TCH/AHS in kbit/s
CODEC_MODE_4	7,95
CODEC_MODE_3	6,7
CODEC_MODE_2	5,9
CODEC_MODE_1	4.75

The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).

The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/I_norm), shall apply for Codec Mode Command / Request (MC, MR):

MC’/MR’	THR_MC_Dn(MC’)/ THR_MR_Dn(MR’)	THR_MC_Up(MC’)/ THR_MR_Up(MR’)
CODEC_MODE_4	16,0 dB	+
CODEC_MODE_3	12,0 dB	18,0 dB
CODEC_MODE_2	8,0 dB	14,0 dB
CODEC_MODE_1	 	10,0 dB

The SS transmits Standard Test Signal C1 using 8-PSK on the traffic channel using the Initial Codec Mode (ICM).

The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).

14.4.20.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 using 8-PSK (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 9 dB below that of the wanted signal.

b) The fading characteristic of the wanted and the interfering signal is set to TUhigh. The SS commands the MS into non hopping mode.

c) The SS commands the MS to loop back band signalling code words by closing a Loop I.

Maximum/Minimum Duration of Test

Maximum/minimum: 102 seconds (GSM850, GSM900), 98 seconds (DCS1800, PCS1900).

14.4.20.5 Test requirements

The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.20-1 or table 14.4.20-2.

Table 14.4.20-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS-INB (FER)	TUhigh/No FH	11.760	5102

Table 14.4.20-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/AHS-INB (FER)	TUhigh/No FH	12.320	4870

14.4.21 Co-channel rejection – O-FACCH/H

14.4.21.1 Definition

–

14.4.21.2 Conformance requirement

At reference co channel interference the O-FACCH/H FER shall meet the reference interference performance of table 2k in 3GPP TS 45.005 subclause 6.3).

14.4.21.3 Test purpose

To verify that the MS does not exceed the conformance requirement under propagation condition TUhigh with an allowance for the statistical significance of the test.

14.4.21.4 Method of test

14.4.21.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/WHS or O-TCH/AHS (as supported by MS) with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

Specific PICS Statements:

– Support of GSM speech half rate version 4 (O-TCH/WHS) (TSPC_O-TCH_WHS)

– Support of GSM speech half rate version 6 (O-TCH/AHS) (TSPC_O-TCH_AHS)

PIXIT Statements:

–

14.4.21.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 10 dB below that of the wanted signal for GSM 800 and GSM 900, and9.5dB below that of the wanted signal for GSM 1800 and GSM 1900.

The fading characteristic of the wanted and the interfering signal is TU50.

d) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-channel interference, the MS may not be able to acknowledge the Layer 2 frame. Each repeated L2 frame indicates a frame erasure event. The SS determines the number of frame erasure events during at least the minimum number of samples of FACCH/H frames.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degrade.

14.4.21.5 Test requirements

Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14.4.30-1: Minimum test times due to TU 50 fading conditions

Half Rate 50 km/h
Frequency (GHz)	0,85	0,9	1,8	1,9
Wavelength (m)	0,35	0,33	0,17	0,16
Min test time (s)	403	380	190	180
	0:06:43	0:06:20	0:03:10	0:03:00

If the minimum test time due to multipath conditions exceeds the time taken for obtaining the minimum number of samples, then the test runs for the minimum test time due to multipath conditions and the decision is made by comparing the result with the “derived test limit”. In this case early pass/fail decisions are obsolete.

If the time taken for obtaining the minimum number of samples exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the minimum number of samples have been obtained the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in table 14.4.30-2.

Table 14.4.30-2: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Original BER requirement	Derived test limit	Minimum No. of samples
O-FACCH/H	FER	TUhigh/No FH	0,050000	0,061700	5592

14.4.22 to 14.4.23 Void

14.4.24 Co-channel interference – O-TCH/WFS

14.4.24.1 Definition

The co-channel interference performance is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted modulated signal, both signals being at the nominal frequency of the receiver.

14.4.24.2 Conformance requirement

The reference interference performance (for co channel, C/Ic, or adjacent channel, C/Ia) in terms of frame erasure, bit error or residual bit error rates (whichever appropriate) is specified in table 2, according to the type of channel and the propagation condition. The performance requirements for GSM 400 and GSM 700 systems are as for GSM 900 in table 2, except that the GSM 400 MS speed is doubled from that of GSM 900, e.g. TU50 becomes TU100, and the GSM 700 MS speed is increased by a factor of 1.2, e.g. TU50 becomes TU60. The actual interference ratio is defined as the interference ratio for which this performance is met. The actual interference ratio shall be less than a specified limit, called the reference interference ratio. The reference interference ratio shall be, for BTS and all types of MS:

‑

for co channel interference

C/Ic

9 dB

For GMSK modulated channels, packet switched and ECSD and speech channels (AMR-WB), and for 8-PSK modulated channels, packet switched and ECSD and speech channels (AMR and AMR-WB), the minimum interference ratio for which the reference performance for co channel interference (C/Ic) shall be met is specified in table 2a, 2d, 2e and 2j (GMSK), 2b and 2c, 2d and 2e, and 2k (8-PSK) respectively, according to the type of channel, the propagation condition and type of equipment.

For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: – 93 dBm + Ir + Corr, where:

The levels shall be corrected by the following values:

MS, 8-PSK modulated signals
for GSM 400, GSM 900, GSM 850 and GSM 700 small MS	0 dB
for other GSM 400, GSM 900, GSM 850 and GSM 700 MS	-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS	0 dB
for other DCS 1 800 and PCS 1900 MS	-2 dB

For GMSK modulated speech channels for wideband AMR, and for 8-PSK modulated speech channels for AMR, associated control channels and in band signalling, the minimum input signal level for which the reference performance shall be met is specified in table 1f and 1g respectively for normal BTS, according to the type of channel and the propagation condition. The reference performance shall be:

‑

for speech channels (O-TCH/AHSy, O-TCH/WFSy, O-TCH/WHSy)

FER

£ 1%

where y denotes the codec rate. All other requirements in tables 1f and 1g shall be fulfilled at this input level for reference performance.

For other equipment than normal BTS, the levels shall be corrected by the values in the table below, describing the reference performance level correction factors for packet switched channels. Furthermore, for all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels.

For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.

3GPP 45.005 clauses 2, 6.2 and 6.3

NOTE: The tables 1 and 2 mentioned above can be found in 3GPP 45.005 clause 6.7

14.4.24.3 Test purpose

To verify that the MS does not exceed conformance requirement for FER and class 1b RBER under TUhigh propagation conditions with an allowance for the statistical significance of the test, for channel combinations O-TCH/WFS 8.85 and O-TCH/WFS23.85.

14.4.24.4 Method of test

14.4.24.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 8,85 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

14.4.24.4.2 Procedure

b) The fading characteristic of the wanted and the interfering signals are set to TUhigh.

c) The SS sets the level of the interfering signal to (-93 + Corr +2) dBm (where Corr is the correction factor from 14.4.24.2). Throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

d) The interference ratio is set to C/Ic from table 14.4.24-2 or 14.4.24-3.

The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.

The SS uses a Channel Mode Modify procedure to change the active codec set to 23.85 kbit/s and steps c) to f) are repeated.

Maximum/Minimum Duration of Test

Maximum: 20 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 20 minutes (DCS1800 and PCS1900).

Minimum: 7 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 4 minutes (DCS1800 and PCS1900).

14.4.24.5 Test requirements

Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14.4.24-1: Minimum test times due to TU 50 fading conditions

Full Rate 50 km/h
Frequency (GHz)	0,85	0,9	1,8	1,9
Wavelength (m)	0,35	0,33	0,17	0,16
Min test time (s)	201	190	95	90
	0:03:21	0:03:10	0:01:35	0:01:30

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14.4.24-2 and 14.4.24.3.

Table 14.4.24-2: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 O-TCH/WHS co-channel interference

TUhigh / No FH
0.4 to 0.9GHz		C/Ic dB	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 8.85	Frames	10.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	10.5	5650	0,002200	0,002715	127072	23	00:00:23
WFS23.85	Frames	16.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	16.0	19450	0,001500	0,001851	186386	10	00:00:10

Table 14.4.24-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/WHS co-channel interference

TUhigh / No FH
1.8 to 1.9GHz		C/Ic dB	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 8.85	Frames	9.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	9.0	5650	0,002800	0,003455	99856	18	00:00:18
WFS23.85	Frames	14.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	14.5	19450	0,002000	0,002468	139790	8	00:00:08

14.4.25 Co-channel interference – O-TCH/WHS

14.4.25.1 Definition

14.4.25.2 Conformance requirement

For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: – 93 dBm + Ir + Corr, where:

The levels shall be corrected by the following values:

MS, 8-PSK modulated signals
for GSM 400, GSM 900, GSM 850 and GSM 700 small MS	0 dB
for other GSM 400, GSM 900, GSM 850 and GSM 700 MS	-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS	0 dB
for other DCS 1 800 and PCS 1900 MS	-2 dB

For all classes of MS supporting 8-PSK speech channels, an additional +2 dB adjustment applies for 8-PSK modulated speech channels.

The reference performance is the same as defined in subclause 6.2.

The reference performance shall be:

‑

for speech channels (O-TCH/AHSy, O-TCH/WFSy, O-TCH/WHSy)

FER

£ 1%

where y denotes the codec rate. All other requirements in tables 1f and 1g shall be fulfilled at this input level for reference performance.

3GPP TS 45.005, subclauses 6.2, 6.3.

14.4.25.3 Test purpose

14.4.25.4 Method of test

14.4.25.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/WHS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 12,65 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

14.4.25.4.2 Procedure

b) The fading characteristic of the wanted and the interfering signals are set to TU50.

c) The SS sets the level of the interfering signal to (-93 + Corr +2) dBm (where Corr is the correction factor from 14.4.25.2). Throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

d) The interference ratio is set to C/Ic from table 14.4.25-2 or 14.4.25-3.

The SS also determines the frame erasure events by examining sequences of at least the minimum number of samples of consecutive frames and assuming a frame is received successfully, if it is not signalled as erased.
The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s and steps c) to f) are repeated.

Maximum/Minimum Duration of Test

Maximum: 19 minutes (GSM850), 19 minutes (GSM900), 19 minutes (DCS1800), 19 minutes (PCS1900).

Minimum: 14 minutes (GSM850), 13 minutes (GSM900), 7 minutes (DCS1800), 6 minutes (PCS1900).

14.4.25.5 Test requirements

Testing should be performed using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with FER/BER not on the limit.

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex 7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure A7.1.3.1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Testing under multipath and interference conditions requires that at least 990 wavelengths are crossed with the speed given in the fading profile. This leads to a minimum test time depending on the frequency range. No early pass/fail decision is allowed until the minimum test time due to fading has elapsed.

Table 14.4.25-1: Minimum test times due to TU 50 fading conditions

Half Rate 50 km/h
Frequency (GHz)	0,85	0,9	1,8	1,9
Wavelength (m)	0,35	0,33	0,17	0,16
Min test time (s)	403	380	190	180
	0:06:43	0:06:20	0:03:10	0:03:00

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14.4.25-2 and 14.4.25.3.

Table 14.4.25-2: Statistical test limits for T-GSM 810, GSM 850 and GSM 900 O-TCH/WHS co-channel interference

TU50 / No FH
0.8 to 0.9GHz		C/Ic dB	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WHS12.65	Frames	17.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	17.0	9050	0,002700	0,003332	103542	12	00:00:12
WHS 6.60	Frames	13.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	13.5	3900	0,001200	0,001481	232951	60	00:01:00

Table 14.4.25-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/WHS co-channel interference

TU50 / No FH
1.8 to 1.9GHz		C/Ic dB	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WHS12.65	Frames	16.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	16.5	9050	0,003000	0,003702	93193	11	00:00:11
WHS 6.60	Frames	13.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	13.0	3900	0,001200	0,001481	232951	60	00 :01:00

14.4.26 Co-channel rejection – O-TCH/WFS-INB

14.4.26.1 Definition

14.4.26.2 Conformance requirement

‑	for speech channels (TCH/WFSy)	FER	:	£ 1%
‑	for speech channels (O-TCH/AHSy, O-TCH/WFSy, O-TCH/WHSy)	FER	:	£ 1%
‑	for fast associated control channels (O-FACCH/F, O-FACCH/H)	FER	:	£ 5%
–	for in band signalling channels (TCH/WFS-INB, O-TCH/AHS-INB, O-TCH/WFS-INB, O-TCH/WHS-INB)	FER	:	£ 0,5%
–	for EVSIDUR and EVRFR	FER	:	£ 1%

where y denotes the codec rate. All other requirements in tables 1f and 1g shall be fulfilled at this input level for reference performance.

3GPP TS 45.005; Subclause 6.2

‑	for co channel interference	C/Ic	=	9 dB
‑	for adjacent (200 kHz) interference	C/Ia1	=	‑9 dB
‑	for adjacent (400 kHz) interference	C/Ia2	=	‑41 dB
‑	for adjacent (600 kHz) interference	C/Ia3	=	‑49 dB

For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: – 93 dBm + Ir + Corr, where:

The levels shall be corrected by the following values:

MS, 8-PSK modulated signals
for GSM 400, GSM 900, GSM 850 and GSM 700 small MS	0 dB
for other GSM 400, GSM 900, GSM 850 and GSM 700 MS	-2 dB
for DCS 1 800 and PCS 1900 class 1 or class 2 MS	0 dB
for other DCS 1 800 and PCS 1900 MS	-2 dB

3GPP TS 45.005; Subclause 6.3

The delays associated with Loop I remain constant for all of the following circumstances:

– For a given MS implementation.

– For the duration of the MS being powered on.

3GPP TS 44.014 subclause 5.1.7a.1.

14.4.26.3 Test purpose

To verify that the MS does not exceed conformance requirement under propagation condition TU high without frequency hopping with an allowance for the statistical significance of the test.

14.4.26.4 Method of test

14.4.26.4.1 Initial conditions

A call is set up according to the generic call set up procedure on O-TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of the following set of codecs modes:

Codec Mode	O-TCH/WFS in kbit/s
CODEC_MODE_4	23,85
CODEC_MODE_3	12,65
CODEC_MODE_2	8,85
CODEC_MODE_1	6,60

The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).

The following decision threshold and hysteresis values in terms of normalised carrier to interference ratio (C/I_norm), shall apply for Codec Mode Command / Request (MC, MR):

MC’/MR’	THR_MC_Dn(MC)/ THR_MR_Dn(MR)	THR_MC_Up(MC)/ THR_MR_Up(MR)
CODEC_MODE_4	18,5 dB	+∞
CODEC_MODE_3	12,5 dB	20,5 dB
CODEC_MODE_2	6,5 dB	14,5 dB
CODEC_MODE_1	~∞	8,5 dB

The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).

The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_4).

The SS commands the MS to loop back in band signalling code words by closing a Loop I.

14.4.26.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is set to (-93 + Corr +2) dBm (where Corr is the correction factor from 14.4.26.2). The C/I (interference ratio) shall be set by modifying the wanted signal..

The interference ratios C/Ic for the specific frequency bands are set according table 14.4.26-1 or 14.4.26-2.

The fading characteristic of the wanted and the interfering signal is TU high.

Maximum/Minimum Duration of Test

Maximum/minimum: 19 minutes.

14.4.26.5 Test requirements

The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.26-1.

Table 14.4.26-1: Limits for T-GSM 810, GSM 850 and GSM 950 O-TCH/WFS-INB co-channel rejection

Channel	Propagation condition	C/Ic dB	Test limit error rate %	Minimum No. of samples
O-TCH/WFS-INB (FER)	TU high/No FH	7.0	0.617	55916

Table 14.4.26-2: Limits for DCS 1800 and PCS 1900 O-TCH/WFS-INB co-channel rejection

Channel	Propagation condition	C/Ic dB	Test limit error rate %	Minimum No. of samples
O-TCH/WFS-INB (FER)	TU high/No FH	6.5	0.617	55916

14.4.27 Void

14.4.28 Co-channel rejection – TCH/WFS

14.4.28.1 Definition

14.4.28.2 Conformance requirement

At reference co-channel interference the TCH/WFS class Ib BER shall meet the reference interference performance of table 2j in 3GPP TS 45.005 subclause 6.3.

The performance requirements for GSM 400 and GSM 700 systems are as for GSM 900 in table 2j, except that the GSM 400 MS speed is doubled from that of GSM 900, e.g. TU50 becomes TU100, and the GSM 700 MS speed is increased by a factor of 1.2, e.g. TU50 becomes TU60.

For packet switched and AMR-WB speech, GMSK modulated channels the wanted input signal level shall be: -93 dBm + Ir + Corr, where:

Ir = the interference ratio according to table 2a and table 2j for the packet switched and AMR-WB speech channels respectively
Corr = the correction factor for reference performance according to subclause 6.2.

3GPP TS 45.005 subclause 6.3

The levels shall be corrected by the following values:

	MS, GMSK modulated signals
‑	for DCS 1 800 class 1 or class 2 MS	+2/+4 dB**
‑	for DCS 1 800 class 3 MS	+2 dB
‑	for GSM 400 small MS, GSM 900 small MS GSM 850 small MS and GSM 700 small MS	+2 dB
‑	for other GSM 400, GSM 900 MS and GSM 850 MS and GSM 700 MS	0 dB
	for PCS 1900 class 1 or class 2 MS	+2 dB
	for other PCS 1900 MS	0 dB

** For DCS 1 800 class 1 and class 2 MS, a correction offset of +2dB shall apply for the reference sensitivity performance as specified in table 1a for the normal conditions defined in Annex D and an offset of +4 dB shall be used to determine all other MS performances.

3GPP TS 45.005 subclause 6.2

For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.

3GPP TS 45.005 subclause 2

14.4.28.3 Test purpose

1. To verify that the MS does not exceed conformance requirement at the maximum implemented codec rate under propagation condition TUhigh (for GSM 700, T-GSM 810, GSM 850, GSM 900, DCS 1800 and PSC 1900) with no frequency hopping, RAhigh with no frequency hoping (for GSM 700, T-GSM 810, GSM 850 and GSM 900), and TUlow (for GSM 700, T-GSM 810, GSM 850 and GSM900) with no frequency hopping with an allowance for the statistical significance of the test.

2. To verify that the MS does not exceed conformance requirement for the remaining implemented codec rates under propagation condition TUhigh with no frequency hopping with an allowance for the statistical significance of the test.

14.4.28.4 Method of test

14.4.28.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 6.60 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

Specific PICS statements:

– TSPC_Type_SmallMS

– TSPC_Type_DCS_Class1

– TSPC_Type_DCS_Class2

– TSPC_Type_DCS_Class3

– TSPC_Type_PCS_Class1

– TSPC_Type_PCS_Class2

PIXIT statements:

–

14.4.28.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The unwanted signal shall be set to (-93 + Corr) dB (where Corr is the correction factor from 14.4.28.2). Throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

The interference ratio is set to C/Ic from table 14.4.28-6 or 14.4.28-7.

The fading characteristic of the wanted and the interfering signal is TUHigh non-hoping (TU50 for T-GSM 810, GSM 850 and GSM 900, TU60 for GSM 700).

d) The SS also determines the frame erasure events by examining at least the minimum number of samples of consecutive frames and assuming a frame is received successfully if it is not signalled as erased.

e) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s, and the interference ratio is adjust to C/Ic from table 14.4.28-6 or 14.4.28-7. Steps b) to d) are repeated.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 12.65 kbit/s, and the interference radio adjust to C/Ic from table 14.4.28-6 or 14.4.28-7.. Steps b) to d) are repeated.

h) If DCS 1800 or PCS 1900 then skip steps i) and j).

i) The fading characteristic of the wanted and the interfering signal is set to TULow non-hoping (TU3 for T-GSM 810, GSM 850 and GSM 900, TU3.6 for GSM 700), and the interference ratio adjusted to C/Ic from table 14.4.28-4. Steps b) to d) are repeated.

j) The fading characteristic of the wanted and the interfering signal is set to RAHigh non-hoping (RA250 for T-GSM 810, GSM 850 and GSM 900, RA300 for GSM 700) and the interference ratio adjusted to C/Ic from table 14.4.28-5. Steps b) to d) are repeated.

Maximum/Minimum Duration of Test

– Maximum: 30 minutes (GSM 700), 25 minutes (GSM850, GSM900) or 5 minutes (DCS1800, PCS1900).

– Minimum: 30 minutes (GSM 700), 25 minutes, (GSM850, GSM900) or 5 minutes (DCS1800, PCS1900).

14.4.28.5 Test requirements

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex A7.

Wrong decision risk F for one single error rate test:

F_pass = F_fail = F and F = 0.2%

Wrong decision probability D per test step:

D_pass = D_fail = D and D = 0.0085%

Parameters for limit lines:

1. D = 0.000085 wrong decision probability per test step.

2. M = 1.5 bad DUT factor

3. ne number of (error) events. This parameter is the x‑ordinate in figure 14‑1.

4. ns number of samples. The error rate is calculated from ne and ns.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Table 14.4.28-1: Minimum test times due to TU low fading conditions

Full Rate 3 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	1800	1029	847	800	–	–	S
	0:30:00	0:17:09	0:14:07	0:13:20	–	–	hh:mm:ss
Full Rate 3.6km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	1500	857	706	667	–	–	S
	0:25:00	0:14:17	0:11:46	0:11:07	–	–	hh:mm:ss

Table 14.4.28-2: Minimum test times due to TU high fading conditions

Full Rate 50 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	428	244	201	190	95	90	s
	0:07:08	0:04:04	0:03:21	0:03:10	0:01:35	0:01:30	hh:mm:ss
Full Rate 60 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	356	204	168	158	79	75	s
	0:05:56	0:03:24	0:02:48	0:02:38	0:01:19	0:01:15	hh:mm:ss

Table 14.4.28-3: Minimum test times due to RA high fading conditions

Full Rate 250 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	86	49	40	38	–	–	S
	0:1:26	0:0:49	0:0:40	0:0:38	–	–	hh:mm:ss
Full Rate 300 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	71	41	34	32	–	–	S
	0:1:11	0:0:41	0:0:34	0:0:32	–	–	hh:mm:ss

If the target test time exceeds the minimum test time due to multipath conditions early pass/fail decisions can be headed for in order to accelerate test execution.

For an early decision a minimum number of (error) events is necessary.

For an early pass decision ne ≥ 1 (inclusive artificial error)

For an early fail decision ne ≥ 7

When the target test time has been reached the test is finished and a pass/fail decision can be made.

The error rate measured in this test shall be tested according to the values given in tables 14.4.28-4 through 14.4.28-7.

Table 14.4.28-4: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 TU low no FH

0.4 to 0.9GHz

C/Ic

(dB)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

WFS 12.65

frames

21.5

0,010000

0,012340

27958

560

00:09:20

Class1b

(as frames)

9050

0,000800

0,000987

349473

00:00:39

Table 14.4.28-5: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 RA High no FH

0.4 to 0.9GHz

C/Ic

(dB)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

WFS 12.65

frames

12,5

0,010000

0,012340

27958

560

00:09:20

Class1b

(as frames)

9050

0,006300

0,007774

44378

00:00:05

Table 14.4.28-6: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 TU high no FH

0.4 to 0.9GHz		C/Ic (dB)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 12.65	frames	14.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	9050	0,004000	0,004936	69895	8	00:00:08
WFS 8.85	frames	11.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	5650	0,004200	0,005183	66566	12	00:00:12
WFS 6.60	frames	10.5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	3900	0,001600	0,001974	174737	45	00:00:45

Table 14.4.28-7: Statistical test limits for DCS 1 800 and PCS 1 900 TU high no FH

0.4 to 0.9GHz		C/Ic (dB)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 12.65	frames	13,0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	9050	0,006300	0,007774	44378	5	00:00:05
WFS 8.85	frames	10,0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	5650	0,006400	0,007898	43684	8	00:00:08
WFS 6.60	frames	9,0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	3900	0,002700	0,003332	103548	27	00:00:27

14.4.28a Co-channel rejection – TCH/WFS in TIGHTER configuration

14.4.28a.1 Definition

14.4.28a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.5

A MS indicating support for TIGHTER Capability (see 3GPP TS 24.008) shall fulfil the requirements in table 2ad for co channel interference (C/Ic).

The reference performance shall be:

Table 6.3-6: Reference performance for TIGHTER

For speech channels (TCH/FS, TCH/HS, TCH/EFS, TCH/AFSx, TCH/AHSx, TCH/WFSx )

FER:

 1 %

14.4.28a.3 Test purpose

1. For TCH/WFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.5, for co-channel interference ratio mentioned in table 2ad according to propagation conditions.

2. At reference co-channel interference the TCH/WFS class Ib BER shall meet the reference interference performance of table 2ad in 3GPP TS 45.005.

14.4.28a.4 Method of test

14.4.28a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power. RADIO_LINK_TIMEOUT is set to maximum.

The multirate configuration indicates the use of a codec set limited to 6.60 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

The SS commands the MS to create the traffic channel loop back, signalling erased frames (subclause 36).

Specific PICS statements:

–

PIXIT statements:

–

14.4.28a.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The unwanted signal shall be set to -93 dBm + Corr (where Corr is the correction factor from 3GPP TS 45.005 subclause 6.2) and throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

The interference ratio is set to C/Ic from table 14.4.28a-6 or 14.4.28a-7.

The fading characteristic of the wanted and the interfering signal is TUHigh non-hopping.

e) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s, and the interference ratio is adjust to C/Ic from table 14.4.28a-6 or 14.4.28a-7. Steps b) to d) are repeated.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 12.65 kbit/s, and the interference radio adjust to C/Ic from table 14.4.28a-6 or 14.4.28a-7. Steps b) to d) are repeated.

h) If DCS 1800 or PCS 1900 then skip steps i) and j).

i) The fading characteristic of the wanted and the interfering signal is set to TULow non-hoping and the interference ratio adjusted to C/Ic from table 14.4.28a-4. Steps b) to d) are repeated.

j) The fading characteristic of the wanted and the interfering signal is set to RAHigh non-hoping and the interference ratio adjusted to C/Ic from table 14.4.28a-5. Steps b) to d) are repeated.

Maximum/Minimum Duration of Test

– Maximum: 25 minutes (GSM850, GSM900) or 5 minutes (DCS1800, PCS1900).

– Minimum: 25 minutes, (GSM850, GSM900) or 5 minutes (DCS1800, PCS1900).

14.4.28a.5 Test requirements

For more information on statistical testing of BER/BLER performance, especially the definition of limit lines refer to Annex A7.

Limit checking

Before limit checking is valid the minimum test time due to fading needs to be considered:

Table 14.4.28a-1: Minimum test times due to TU low fading conditions

Full Rate 3 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	1800	1029	847	800	–	–	S
	0:30:00	0:17:09	0:14:07	0:13:20	–	–	hh:mm:ss
Full Rate 3.6km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	1500	857	706	667	–	–	S
	0:25:00	0:14:17	0:11:46	0:11:07	–	–	hh:mm:ss

Table 14.4.28a-2: Minimum test times due to TU high fading conditions

Full Rate 50 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	428	244	201	190	95	90	s
	0:07:08	0:04:04	0:03:21	0:03:10	0:01:35	0:01:30	hh:mm:ss
Full Rate 60 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	0,17	0,16	m
min test time	356	204	168	158	79	75	s
	0:05:56	0:03:24	0:02:48	0:02:38	0:01:19	0:01:15	hh:mm:ss

Table 14.4.28a-3: Minimum test times due to RA high fading conditions

Full Rate 250 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	86	49	40	38	–	–	S
	0:1:26	0:0:49	0:0:40	0:0:38	–	–	hh:mm:ss
Full Rate 300 km/h
Frequency	0,4	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,75	0,43	0,35	0,33	–	–	m
min test time	71	41	34	32	–	–	S
	0:1:11	0:0:41	0:0:34	0:0:32	–	–	hh:mm:ss

The error rate measured in this test shall be tested according to the values given in tables 14.4.28a-4 through 14.4.28a-7.

Table 14.4.28a-4: Statistical test limits for GSM 850 and GSM 900 TU low no FH

0.4 to 0.9GHz

C/Ic

(dB)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

WFS 12.65

frames

14.5

0,010000

0,012340

27958

560

00:09:20

Class1b

(as frames)

9050

0,000800

0,000987

349473

00:00:39

Table 14.4.28a-5: Statistical test limits for GSM 850 and GSM 900 RA High no FH

0.4 to 0.9GHz

C/Ic

(dB)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

WFS 12.65

frames

12.5

0,010000

0,012340

27958

560

00:09:20

Class1b

(as frames)

9050

0,006300

0,007774

44378

00:00:05

Table 14.4.28a-6: Statistical test limits for GSM 850 and GSM 900 TU high no FH

0.4 to 0.9GHz		C/Ic (dB)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 12.65	frames	8,5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	9050	0,004000	0,004936	69895	8	00:00:08
WFS 8.85	frames	5,5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	5650	0,004200	0,005183	66566	12	00:00:12
WFS 6.60	frames	4,5	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	3900	0,001600	0,001974	174737	45	00:00:45

Table 14.4.28a-7: Statistical test limits for DCS 1 800 and PCS 1 900 TU high no FH

0.4 to 0.9GHz		C/Ic (dB)	Samples per second	Orig. BER requirement	Derived test limit	Target number of samples	Target test time (s)	Target test time (hh:mm:ss)
WFS 12.65	frames	7.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	9050	0,006300	0,007774	44378	5	00:00:05
WFS 8.85	frames	4.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	5650	0,006400	0,007898	43684	8	00:00:08
WFS 6.60	frames	3.0	50	0,010000	0,012340	27958	560	00:09:20
	Class1b	(as frames)	3900	0,002700	0,003332	103548	27	00:00:27

14.4.29 Co-channel interference – TCH/WFS-INB

14.4.29.1 Definition

The co-channel interference is a measure of the capability of the receiver to receive a wanted modulated signal without exceeding a given degradation due to the presence of an unwanted modulated signal, both signals being at the nominal frequency of the receiver.

14.4.29.2 Conformance requirement

At reference co-channel interference the TCH/WFS-INB FER shall meet the reference interference performance of TCH/AFS-INB FER, as stated in NOTE 5 in table 2j in 3GPP TS 45.005 subclause 6.3.

The delays associated with Loop I remain constant for all of the following circumstances:

– For a given MS implementation.

– For the duration of the MS being powered on.

NOTE: While a Loop I is active, it is expected that the SS transmit a valid downlink signal including speech frames channel encoded according to the DL CMI.

3GPP TS 44.014 subclause 5.1.7a.1.

3GPP TS 45.005 subclause 6.3

For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.

3GPP TS 45.005 subclause 2.

14.4.29.3 Test purpose

14.4.29.4 Method of test

14.4.29.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of the following set of codecs modes:

Codec Mode	TCH/WFS in kbit/s
CODEC_MODE_3	12.65
CODEC_MODE_2	8.85
CODEC_MODE_1	6.6

The Initial Codec Mode shall be set to the lowest codec mode (CODEC_MODE_1).

The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/I_norm), shall apply for Codec Mode Command / Request (MC, MR):

MC’/MR’	THR_MC_Dn(MC)/ THR_MR_Dn(MR)	THR_MC_Up(MC)/ THR_MR_Up(MR)
CODEC_MODE_3	18,5 dB	+ 
CODEC_MODE_2	12,5 dB	20,5 dB
CODEC_MODE_1	 	14.5 dB

The SS transmits Standard Test Signal C1 on the traffic channel using the Initial Codec Mode (ICM).

The SS continuously sends a CMC corresponding to the highest codec mode (CODEC_MODE_3).

The SS commands the MS to loop back in band signalling code words by closing a Loop I.

Specific PICS Statements

PIXIT Statements

14.4.29.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The fading characteristic of the wanted and the interfering signal is TUHigh non-hoping (TU50 for T-GSM 810, GSM 850 and GSM 900, TU60 for GSM 700).

b) The SS shall change the Codec Mode Indication and Codec Mode Command at to the neighbour mode every 22 speech frames (440 ms) by following a scanning pattern (1->2->3->3->2->1). CMI should initially be increased. CMC should initially be decreased. The CMI/CMC shall be repeated until the minimum required number of frame samples has been sent to the MS.

Maximum/Minimum Duration of Test

Maximum/minimum: 45 minutes (GSM 700, GSM850, GSM900).

Maximum/minimum: 80 minutes (DCS1800, PCS1900).

14.4.29.5 Test requirements

The frame error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.29-1 or 14.4.29-2.

Co-channel rejection tests with a frequency condition noted as "@ndB" are performed with the interfering frequency transmitted with an additional n dB attenuation, see 3GPP TS 45.005.

Table 14.4.29-1: Limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/WFS-INB (FER)	TUhigh/No FH@-3 dB	0.271	127081

Table 14.4.29-2: Limits for DCS 1800 and PCS 1 900 co-channel rejection

Channel	Propagation condition	Test limit error rate %	Minimum No. of samples
TCH/WFS-INB (FER)	TUhigh/No FH@-3 dB	0.148	232982

14.4.30 Co-channel interference – O-FACCH/F

14.4.30.1 Definition

14.4.30.2 Conformance requirement

For 8-PSK modulated speech channels (AMR and AMR-WB), ECSD channels and 8-PSK modulated packet-switched channels, the wanted input signal level shall be: – 93 dBm + Ir + Corr, where:

‑

for fast associated control channels (O-FACCH/F, O-FACCH/H)

FER

£ 5%

3GPP 45.005 clauses 6.2 and 6.3

NOTE: The tables 1 and 2 mentioned above can be found in 3GPP 45.005 clause 6.7

14.4.30.3 Test purpose

To verify that the MS does not exceed the conformance requirement under propagation condition TUlow with an allowance for the statistical significance of the test, for channel combinations O-TCH/WFS 12.65.

14.4.30.4 Method of test

14.4.30.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a O-TCH/WFS with an ARFCN in the mid ARFCN range, power control level set to maximum power.

The multirate configuration indicates the use of a codec set limited to 12,65 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

14.4.30.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. Its amplitude is 15,5 dB below that of the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUlow.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.

14.4.30.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.30-1.

Table 14.4.30-1: Limits for co-channel rejection

Channel	Type of measurement	Propagation condition	Test limit error rate %	Minimum No. of samples
O-FACCH/F	FER	TUlow/No FH	18	25 000

14.4.31 Co-channel rejection – Repeated FACCH/F

14.4.31.1 Definition

14.4.31.2 Conformance requirement

The reference performance for Repeated Downlink FACCH and Repeated SACCH shall be FER £ 5%.

3GPP TS 45.005 subclause 6.2

When calculating FER, a FACCH frame and its repetition or a SACCH frame and its repetition respectively, shall be counted as one frame and a frame erasure shall be counted when neither the FACCH frame nor its repetition or neither the SACCH frame nor its repetition respectively, could be successfully decoded.

3GPP TS 45.005 subclause 6.2.

For Repeated Downlink FACCH and Repeated SACCH (see 3GPP TS 44.006), the minimum interference ratio for which the reference performance for co channel interference (C/Ic) shall be met is specified in table 2p according to the propagation condition and type of equipment. The performance requirements for GSM 400 and GSM 700 systems are as for GSM 900 in table 2a, 2b, 2c, 2d, 2e, 2j, 2k, 2m and 2p except that the GSM 400 MS speed is doubled from that of GSM 900, e.g. TU50 becomes TU100, and the GSM 700 MS speed is increased by a factor of 1.2, e.g. TU50 becomes TU60.

3GPP TS 45.005 subclause 6.3

For Repeated Downlink FACCH and Repeated SACCH (see 3GPP TS 44.006), the wanted input signal level shall be: -93 dBm + Ir + Corr, where:

Ir = the interference ratio according to table 2p.
Corr = the correction factor for reference performance according to subclause 6.2

3GPP TS 45.005 subclause 6.3

The levels shall be corrected by the following values:

	MS, GMSK modulated signals
‑	for DCS 1 800 class 1 or class 2 MS	+2/+4 dB**
‑	for DCS 1 800 class 3 MS	+2 dB
‑	for GSM 400 small MS, GSM 900 small MS GSM 850 small MS and GSM 700 small MS	+2 dB
‑	for other GSM 400, GSM 900 MS and GSM 850 MS and GSM 700 MS	0 dB
	for PCS 1900 class 1 or class 2 MS	+2 dB
	for other PCS 1900 MS	0 dB

**NOTE: For DCS 1 800 class 1 and class 2 MS, a correction offset of +2dB shall apply for the reference sensitivity performance as specified in table 1a for the normal conditions defined in Annex D and an offset of +4 dB shall be used to determine all other MS performances.

3GPP TS 45.005 subclause 6.2

For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.

3GPP TS 45.005 subclause 2.

14.4.31.3 Test purpose

To verify that the MS does not exceed the conformance requirements under propagation condition TUhigh with an allowance for the statistical significance of the test.

14.4.31.4 Method of test

14.4.31.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.

The SS shall use Repeated FACCH for command and response frames for the duration of the test.

Each pair of FACCHs are counted as a single sample.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

Specific PICS statements:

– TSPC_Type_SmallMS

– TSPC_Type_DCS_Class1

– TSPC_Type_DCS_Class2

– TSPC_Type_DCS_Class3

– TSPC_Type_PCS_Class1

– TSPC_Type_PCS_Class2

PIXIT statements:

–

14.4.31.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The unwanted signal shall be set to (-93 + Corr) dB (where Corr is the correction factor from the table above). Throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUhigh.

b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the co-channel interference, the MS may not be able to acknowledge an RR frame and the L2 entity of the SS will repeat the Layer 2 frame. Each retransmitted L2 frame indicates a frame erasure event. The SS determines the number of frame erasure events during at least the minimum number of samples of FACCH/F frames.

NOTE: These frames will not be consecutive but it is expected that the statistical significance of the tests will not be unduly degraded.

Maximum/Minimum Duration of Test

Maximum: 12 minutes.

Minimum: 10 minutes (GSM700, GSM850, GSM900), 5 minutes (DCS1800, PCS900)

14.4.31.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.31-2

For more information on statistical testing of FER performance, especially the definitions of limit lines refer to Annex A7.

Table 14.4.31-1: Minimum test times due to TU high fading conditions

Full Rate 50 km/h
Frequency	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	–	0,35	0,33	0,17	0,16	m
min test time	–	604	570	285	270	s
	–	00:10:04	00:09:30	00:04:45	00:04:30	hh:mm:ss
Full Rate 60 km/h
Frequency	0,7	0,85	0,9	1,8	1,9	GHz
Wavelength	0,43	–	–	–	–	m
min test time	611	–	–	–	–	s
	00:10:11	–	–	–	–	hh:mm:ss

NOTE: Minimum test time calculation due to fading is based on the best 50/3 frame rate relation in table 14.4.31-3

Table 14.4.31-2: Test Limits for Repeated FACCH/F sensitivity

Channel

Type of measurement

Propagation condition

Original

FER requirement

Derived test limit %

Target number of samples

FACCH/F

FER

TUhigh/No FH

5,00

6,17

5592

Table 14.4.31-3: Maximum test times

Maximum test time (best rate 50/3 per second) (s)	Maximum test time (best rate 50/3 per second) (hh:mm:ss)	Maximum test time (worst rate 50/6 per second) (s)	Maximum test time (worst rate 50/6 per second) (hh:mm:ss)
336	00:05:36	671	00:11:11

14.4.32 Co-channel rejection – Repeated SACCH

14.4.32.1 Definition

14.4.32.2 Conformance requirement

The reference performance for Repeated Downlink FACCH and Repeated SACCH shall be FER £ 5%.

3GPP TS 45.005 subclause 6.2

3GPP TS 45.005 subclause 6.2.

3GPP TS 45.005 subclause 6.3

For Repeated Downlink FACCH and Repeated SACCH (see 3GPP TS 44.006), the wanted input signal level shall be: -93 dBm + Ir + Corr, where:

Ir = the interference ratio according to table 2p.
Corr = the correction factor for reference performance according to subclause 6.2

3GPP TS 45.005 subclause 6.3

The levels shall be corrected by the following values:

	MS, GMSK modulated signals
‑	for DCS 1 800 class 1 or class 2 MS	+2/+4 dB**
‑	for DCS 1 800 class 3 MS	+2 dB
‑	for GSM 400 small MS, GSM 900 small MS GSM 850 small MS and GSM 700 small MS	+2 dB
‑	for other GSM 400, GSM 900 MS and GSM 850 MS and GSM 700 MS	0 dB
	for PCS 1900 class 1 or class 2 MS	+2 dB
	for other PCS 1900 MS	0 dB

3GPP TS 45.005 subclause 6.2

For T-GSM 810 the requirements for GSM 900 shall apply, apart for those parameters for which a separate requirement exists.

3GPP TS 45.005 subclause 2.

14.4.32.3 Test purpose

To verify that the MS does not exceed the conformance requirements under propagation condition TUhigh with an allowance for the statistical significance of the test.

14.4.32.4 Method of test

For details on Repeated SACCH Layer 1 test method, please refer to Annex 10.

14.4.32.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/F with an ARFCN in the mid ARFCN range. The power control level is set to maximum power.

The SS shall use Repeated SACCH for all SACCH block on the downlink for the duration of the test.

Each pair of SACCH blocks (i.e. one Repeated SACCH block-pair) shall be counted as a single sample.

The SS shall send different PCL for each sample following Table 14.4.32-1 for the duration of the test.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal).

Specific PICS statements:

– TSPC_Type_SmallMS

– TSPC_Type_DCS_Class1

– TSPC_Type_DCS_Class2

– TSPC_Type_DCS_Class3

– TSPC_Type_PCS_Class1

– TSPC_Type_PCS_Class2

PIXIT statements:

–

14.4.32.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal).

The unwanted signal is continuous and has no fixed relationship with the bit transitions of the wanted signal. The unwanted signal shall be set to (-93 + Corr) dB (where Corr is the correction factor from 14.4.32.2). Throughout the test the C/I (interference ratio) shall be set by modifying the wanted signal.

The fading characteristic of the wanted and the interfering signal is TUhigh/NoFH.

b) Following the reception of the last burst of the MS UL SACCH corresponding to the second SACCH block of a repeated SACCH interval, the SS shall compute the PCL value to use in the SS DL SACCH blocks for the next repeated SACCH interval using Table 14.4.32-1.

i) The first two columns of Table 14.4.32-1 are inputs, the last column is a output.

ii) SACCH blocks are grouped into sets of 2 consecutive SACCH blocks which is called a repeated SACCH interval.

iii) Last commanded PCL by SS refers to the PCL used in the DL SACCH L1 headers for repeated SACCH interval N

iv) Corresponding reported MS PCL refers to the PCL reported in the UL SACCH L1 header of second SACCH block on repeated SACCH interval N

v) Next commanded PCL by SS refers to the PCL that the SS will use in the DL SACCH L1 headers for repeated SACCH interval N+1..

Table 14.4.32-1: Power Control Level Used by SS

Last commanded PCL by SS	Corresponding Reported MS PCL	Next commanded PCL by SS
7	7	8
7	8	9
7	9	8
8	7	9
8	8	9
8	9	7
9	7	8
9	8	7
9	9	7

c) The SS compares the MS reported PCL in the uplink SACCH L1 header of the Repeated SACCH block against the expected PCL (based on the previously commanded PCL in the downlink SACCH L1 header taking into account round-trip delays). If the MS reported PCL in the uplink SACCH L1 header is different than the expected PCL, this will invoke a frame erasure event.

d) The SS determines the frame erasure events during at least the minimum number of samples of SACCH frames.

NOTE: These frames will be consecutive and it is expected that the statistical significance of the tests will not be unduly degraded.

Maximum/Minimum Duration of Test (hh:mm)

Maximum: 02:43 (GSM700)

Minimum: 01:12 (PCS 1900)

14.4.32.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14.4.32-2.

For more information on statistical testing of FER performance, especially the definitions of limit lines refer to Annex A7.

Table 14.2.25-1: Minimum test times due to TU high fading conditions

Full Rate 50 km/h
Frequency	0,7	0,85		0,9		1,8		1,9		GHz
Wavelength	–	0,35		0,33		0,17		0,16		m
min test time	–	9676		9138		4569		4329		s
	–	02:41:16		02:32:18		01:16:09		01:12:09		hh:mm:ss
Full Rate 60 km/h
Frequency	0,7	0,85		0,9		1,8		1,9		GHz
Wavelength	0,43	–		–		–		–		m
min test time	9791	–	–		–		–		s
	02:43:11	–	–		–		–		hh:mm:ss

NOTE: Minimum test time calculation due to fading is based on the 960 ms schedule for two SACCH frames

Table 14.4.32-2: Test Limits for Repeated SACCH sensitivity

Channel

Type of measurement

Propagation condition

Original

FER requirement

Derived test limit %

Target number of samples

SACCH

FER

TUhigh/No FH

5,00

6,17

5592

Table 14.4.32-3: Minimum/Maximum test times

Minimum test time (best rate 2/2 per second) (s)	Minimum test time (best rate 2/2 per second) (hh:mm:ss)
5368	01:29:28