14.5 Adjacent channel rejection

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

14.5.1 Adjacent channel rejection – speech channels

14.5.1.1 TCH/FS

14.5.1.1.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is implicitly tested in test 14.2.1.

14.5.1.1.2 Conformance requirement

1. With adjacent channel interference at 200 kHz above and below the wanted signal and signal level 9 dB above the wanted signal level:

1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/FS shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib RBER shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

1.3 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

1.4 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3 and annex D subclauses D.2.1 and D.2.2.

2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/FS shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

2.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib RBER shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

2.3 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

2.4 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3 and annex D subclauses D.2.1 and D.2.2.

If a system simulator does not support the faded interferer, a static adjacent interferer has to be used. The following requirements apply.

2.5 For a TUhigh faded wanted signal and a static adjacent channel interferer, the FER for TCH/FS shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 10,2* %; 3GPP TS 05.05, subclause 6.3;

DCS 1 800 and PCS 1 900: 5,1* %; 3GPP TS 05.05, subclause 6.3.

2.6 For a TUhigh faded wanted signal and a static adjacent channel interferer, the Class Ib RBER shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 0,72/ %; 3GPP TS 05.05, subclause 6.3;

DCS 1 800 and PCS 1 900: 0,45/ %; 3GPP TS 05.05, subclause 6.3.

2.7 For a TUhigh faded wanted signal and a static adjacent channel interferer, the Class II RBER shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 8,8 %; 3GPP TS 05.05, subclause 6.3;

DCS 1 800 and PCS 1 900: 8,9 %; 3GPP TS 05.05, subclause 6.3.

2.8 For a TUhigh faded wanted signal and a static adjacent channel interferer, the Class II RBER shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 8,8 %;

DCS 1 800 and PCS 1 900: 8,9 %.

under extreme test conditions; 3GPP TS 05.05, subclause 6.3, annex D subclauses D.2.1 and D.2.2.

3GPP TS 45.05 subclause 2:

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

14.5.1.1.3 Test purpose

1 To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and signal level 9 dB above the wanted signal level:

1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.

1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.

1.3 Conformance requirement 1.3 is met with an allowance for the statistical significance of the test.

1.4 Conformance requirement 1.4 is met with an allowance for the statistical significance of the test.

2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 Conformance requirement 2.1 is met with an allowance for the statistical significance of the test.

2.2 Conformance requirement 2.2 is met with an allowance for the statistical significance of the test.

2.3 Conformance requirement 2.3 is met with an allowance for the statistical significance of the test.

2.4 Conformance requirement 2.4 is met with an allowance for the statistical significance of the test.

3. If a static adjacent channel interferer is used due to system simulation limitation the following requirements apply.

3.1 Conformance requirement 2.5 is met with an allowance for the statistical significance of the test.

3.2 Conformance requirement 2.6 is met with an allowance for the statistical significance of the test.

3.3 Conformance requirement 2.7 is met with an allowance for the statistical significance of the test.

3.4 Conformance requirement 2.8 is met with an allowance for the statistical significance of the test.

14.5.1.1.4 Method of test

14.5.1.1.4.1 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 commands the MS to create the traffic channel loop back signalling erased frames.

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

14.5.1.1.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is set to TUhigh.

The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 9dB above that of the wanted signal.

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 tests the frame erasure compliance for the TCH/FS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.

e) The measurement of steps c) and d) is repeated with the unwanted signal on a frequency at the same displacement from, but below, the frequency of the wanted signal.

f) The measurement of steps c) to e) shall be repeated for a displacement of the unwanted signal of 400 kHz, and with the amplitude of the unwanted signal 41 dB above the level of the wanted input signal, The fading characteristic of the wanted and the unwanted signal is set to TUhigh. If a system simulator does not support the faded interferer, a static adjacent interferer may be used.

g) Steps c) to f) are repeated for class II BER under extreme test conditions.

14.5.1.1.5 Test requirements

Table 14-22: Limits for adjacent channel selectivity

GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900

DCS 1 800 and PCS 1 900

Interference at

Channel

Type of measurement

Test limit error rate %

Minimum No. of samples

Test limit error rate %

Minimum No. of samples

200 kHz

TCH/FS

FER

6,742*

8 900

3,371*

17 800

class Ib

RBER

0,420/

1 000 000

0,270/

2 000 000

class II

RBER

8,333

600 000

8,333

1 200 000

400 kHz

Interferer

TUhight

TCH/FS

class Ib

class II

FER

RBER

RBER

6,742*

0,420/

8,333

8 900

1 000 000

600 000

3,371*

0,270/

8,333

17 800

2 000 000

1 200 000

400 kHz

TCH/FS

FER

11,461*

8 900

5,714*

10 500

Interferer

class Ib

RBER

0,756/

1 000 000

0,483/

1 200 000

Static

class II

RBER

9,167

600 000

9,167

720 000

The error rates measured in this test shall not exceed the test limit error rate given in table 14-22. This shall apply for any combination of normal and extreme test voltages and ambient temperature, and with the interfering signals at either side of the wanted frequency.

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.

NOTE: A static unwanted signal may be used to avoid a potential problem with the implementation of the fading simulator.

14.5.1.1a Adjacent Channel Interference – TCH/FS in TIGHTER configuration

14.5.1.1a.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is implicitly tested in test 14.2.1.

14.5.1.1a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.3

Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS

Modulation of wanted signal

GMSK

8-PSK

16-QAM

32-QAM

AQPSK

for adjacent (200 kHz) interference

C/Ia1 =

C/Ic ‑ 18 dB, see table 2af for TIGHTER MS

See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS

See table 2w, see table 2af for TIGHTER MS

See table 2w, see table 2af for TIGHTER MS

See table 2aa and 2ab

for adjacent (400 kHz) interference

C/Ia2 =

C/Ic ‑ 50 dB

C/Ic – 50 dB

C/Ic – 48 dB

C/Ic – 48 dB

[Note 1]

for adjacent (600 kHz) interference

C/Ia3 =

C/Ic ‑ 58 dB

C/Ic – 58 dB

NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.

NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.

3GPP TS 45.005 subclause 6.3.4

For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:

Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.

14.5.1.1a.3 Test purpose

1. For TCH/FS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.3, for adjacent-channel interference ratio mentioned in table 2af according to propagation conditions.

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

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

14.5.1.1a.4 Method of test

14.5.1.1a.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 commands the MS to create the traffic channel loop back signalling erased frames.

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

14.5.1.1a.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is set to TUhigh no FH.

The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2af.

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 tests the frame erasure compliance for the TCH/FS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.

e) The measurement of steps c) and d) is repeated with the unwanted signal on a frequency at the same displacement from, but below, the frequency of the wanted signal.

f) The measurement of steps c) to e) shall be repeated for a displacement of the unwanted signal of 400 kHz, and with the amplitude of the unwanted signal 41 dB above the level of the wanted input signal. The unwanted signal is set to TUhigh. If, due to system simulator limitation fading is not possible, a static interferer may be used (see table 1.5.1.1a-1 for different limits).

g) Steps c) to f) are repeated for class II BER under extreme test conditions.

14.5.1.1a.5 Test requirements

Table 14.5.1.1a-1: Limits for adjacent channel selectivity

GSM 850 and GSM 900

DCS 1 800 and PCS 1 900

Interference at

Channel

Type of measurement

Test limit error rate %

Minimum No. of samples

Test limit error rate %

Minimum No. of samples

200 kHz/400 kHz. (faded interferer

TCH/FS

FER

1

8 900

1

17 800

class Ib

class II

RBER

RBER

0.07

4.12

1 000 000

600 000

0.07

5.87

2 000 000

1 200 000

400 kHz (static interferer)

TCH/FS

FER

11,461*

8 900

5,714*

10 500

class Ib

RBER

0,756/

1 000 000

0,483/

1 200 000

class II

RBER

9,167

600 000

9,167

720 000

14.5.1.2 TCH/AFS

14.5.1.2.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity, which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.2.2 Conformance requirement

1. With adjacent channel interference at 200 kHz above and below the wanted signal and signal level 9 dB above the wanted signal level:

1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AFS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AFS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

14.5.1.2.3 Test purpose

1 To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio:

1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.

1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.

2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio:

2.1 Conformance requirement 2.1 is met with an allowance for the statistical significance of the test.

2.2 Conformance requirement 2.2 is met with an allowance for the statistical significance of the test.

14.5.1.2.4 Method of test

14.5.1.2.4.1 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 a codec set limited to 12.2 kbit/s.

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

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

14.5.1.2.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is set to TUHigh.

The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio (‑9 dB for 200 kHz offset), meaning 9 dB above that of the wanted signal.

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 tests the frame erasure compliance for the TCH/AFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) 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 for which no bad frame indication was given.

e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio (‑9 dB-3 dB for 200 kHz offset), meaning 12 dB above that of the wanted signal.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 7.95 kbit/s and steps b) to d) are repeated.

g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.

h) 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.

i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.

j) 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.

Maximum/Minimum Duration of Test

Pre Rel-5 MS

Maximum: 16 minutes (GSM850, GSM900), 42 minutes (DCS1800, PCS1900).

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

Rel-5 onwards MS

Maximum: 23 minutes (GSM850, GSM900), 125 minutes (DCS1800, PCS1900).

Minimum: 14 minutes (GSM850, GSM900), 17 minutes (DCS1800, PCS1900).

14.5.1.2.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14-56: 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

990 Waves

743

424

349

330

165

156

m

min net test time

53

31

25

24

12

11

s @ 50km/h

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 rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14-57 or 14-58. Adjacent 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 05.05). Where an entry in the table is ‘-‘, this combination should not be tested.

Table 14-57: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection

TU high 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 12.2

frames

12200

50

0,060000

0,074040

4660

93

00:01:33

Class1b

12200

8150

0,017000

0,020978

16446

2

00:00:02

AFS 7.95

frames @-3dB

7950

50

Pre Rel-5:

0,075000

Rel-5:

0,053000

Pre Rel-5:

0,092550

Rel-5:

0,065402

Pre Rel-5:

3728

Rel-5:

5275

Pre Rel-5:

75

Rel-5:

106

Pre Rel-5:

00:01:15

Rel-5:

00:01:46

Class1b @-3dB

7950

4200

Pre Rel-5:

0,015000

Rel-5:

0,010000

Pre Rel-5:

0,018510

Rel-5:

0,012340

Pre Rel-5:

18639

Rel-5:

27958

Pre Rel-5:

4

Rel-5:

7

Pre Rel-5:

00:00:04

Rel-5:

00:00:07

AFS 5.9

frames @-3dB

5900

50

Pre Rel-5:

0,032000

Rel-5:

0,020000

Pre Rel-5:

0,039488

Rel-5:

0,024680

Pre Rel-5:

8737

Rel-5:

13979

Pre Rel-5:

175

Rel-5:

280

Pre Rel-5:

00:02:55

Rel-5:

00:04:40

Class1b @-3dB

5900

3150

Pre Rel-5:

0,002900

Rel-5:

0,002300

Pre Rel-5:

0,003579

Rel-5:

0,002838

Pre Rel-5:

96407

Rel-5:

121556

Pre Rel-5:

31

Rel-5:

39

Pre Rel-5:

00:00:31

Rel-5:

00:00:39

AFS 4.75

frames @-3dB

4750

50

Pre Rel-5:

0,017000

Rel-5:

0,008200

Pre Rel-5:

0,020978

Rel-5:

0,010119

Pre Rel-5:

16446

Rel-5:

34095

Pre Rel-5:

329

Rel-5:

682

Pre Rel-5:

00:05:29

Rel-5:

00:11:22

Class1b @-3dB

4750

2800

Pre Rel-5:

0,001500

Rel-5:

0,001100

Pre Rel-5:

0,001851

Rel-5:

0,001357

Pre Rel-5:

186386

Rel-5:

254162

Pre Rel-5:

67

Rel-5:

91

Pre Rel-5:

00:01:07

Rel-5:

00:01:31

Table 14-58: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection

TU high no FH

1.8 to 1.9 GHz

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

Pre Rel-5:

0,035000

Rel-5:

0,027000

Pre Rel-5:

0,043190

Rel-5:

0,033318

Pre Rel-5:

7898

Rel-5:

10355

Pre Rel-5:

160

Rel-5:

207

Pre Rel-5:

00:02:40

Rel-5:

00:03:27

Class1b

12200

8150

Pre Rel-5:

0,018000

Rel-5:

0,016000

Pre Rel-5:

0,022212

Rel-5:

0,019744

Pre Rel-5:

15533

Rel-5:

17474

Pre Rel-5:

2

Rel-5:

2

Pre Rel-5:

00:00:02

Rel-5:

00:00:02

AFS 7.95

frames @-3dB

7950

50

Pre Rel-5:

0,034000

Rel-5:

0,020000

Pre Rel-5:

0,041956

Rel-5:

0,024680

Pre Rel-5:

8223

Rel-5:

13979

Pre Rel-5:

164

Rel-5:

280

Pre Rel-5:

00:02:44

Rel-5:

00:04:40

Class1b @-3dB

7950

4200

Pre Rel-5:

0,007800

Rel-5:

0,006800

Pre Rel-5:

0,009625

Rel-5:

0,008391

Pre Rel-5:

35844

Rel-5:

41115

Pre Rel-5:

9

Rel-5:

10

Pre Rel-5:

00:00:09

Rel-5:

00:00:10

AFS 5.9

frames @-3dB

5900

50

Pre Rel-5:

0,010000

Rel-5:

0,004100

Pre Rel-5:

0,012340

Rel-5:

0,005059

Pre Rel-5:

27958

Rel-5:

68190

Pre Rel-5:

559

Rel-5:

1364

Pre Rel-5:

00:09:19

Rel-5:

00:22:44

Class1b @-3dB

5900

3150

Pre Rel-5:

0.001200

Rel-5:

0,000790

Pre Rel-5:

0,001481

Rel-5:

0,000975

Pre Rel-5:

232983

Rel-5:

353897

Pre Rel-5:

74

Rel-5:

112

Pre Rel-5:

00:01:14

Rel-5:

00:01:52

AFS 4.75

frames @-3dB

4750

50

Pre Rel-5:

0,003500

Rel-5:

0,001000

Pre Rel-5:

0,004319

Rel-5:

0,001234

Pre Rel-5:

79880

Rel-5:

279579

Pre Rel-5:

1598

Rel-5:

5592

Pre Rel-5:

00:26:38

Rel-5:

01:33:12

Class1b @-3dB

4750

2800

Pre Rel-5:

0,000330

Rel-5:

0,000210

Pre Rel-5:

0,000407

Rel-5:

0,000259

Pre Rel-5:

847208

Rel-5:

1331327

Pre Rel-5:

303

Rel-5:

475

Pre Rel-5:

00:05:03

Rel-5:

00:07:55

14.5.1.2a Adjacent channel rejection – TCH/AFS in TIGHTER configuration

14.5.1.2a.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity, which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.2a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.3

Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS

Modulation of wanted signal

GMSK

8-PSK

16-QAM

32-QAM

AQPSK

for adjacent (200 kHz) interference

C/Ia1 =

C/Ic ‑ 18 dB, see table 2af for TIGHTER MS

See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS

See table 2w, see table 2af for TIGHTER MS

See table

2w, see table 2af for TIGHTER MS

See table 2aa and 2ab

for adjacent (400 kHz) interference

C/Ia2 =

C/Ic ‑ 50 dB

C/Ic – 50 dB

C/Ic – 48 dB

C/Ic – 48 dB

[Note 1]

for adjacent (600 kHz) interference

C/Ia3 =

C/Ic ‑ 58 dB

C/Ic – 58 dB

NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.

NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.

3GPP TS 45.005 subclause 6.3.4

For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:

Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.

14.5.1.2a.3 Test purpose

1. For TCH/AFS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.3, for adjacent-channel interference ratio mentioned in table 2af according to propagation conditions.

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

14.5.1.2a.4 Method of test

14.5.1.2a.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 a codec set limited to 12.2 kbit/s.

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

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

14.5.1.2a.4.2 Procedure

a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh no FH.

b) In addition to the wanted signal, the SS transmits 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 is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2af.

c) 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.

d) The SS tests the frame erasure compliance for the TCH/AFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

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 for which no bad frame indication was given.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 7.95 kbit/s and steps c) to e) are repeated.

g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.

h) 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.

i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to 3 dB below the reference interference ratio ((‑41 dB ‑ 3 dB) for 400 kHz offset), meaning 44 dB above that of the wanted signal.

j) 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.

Maximum/Minimum Duration of Test

Maximum: 23 minutes (GSM850, GSM900), 125 minutes (DCS1800, PCS1900).

Minimum: 14 minutes (GSM850, GSM900), 17 minutes (DCS1800, PCS1900).

14.5.1.2a.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2.

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14.5.1.2a.5-1: 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

990 Waves

743

424

349

330

165

156

m

min net test time

53

31

25

24

12

11

s @ 50km/h

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 rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14.5.1.2a.5-2 and 14.5.1.2a.5-3.

Table 14.5.1.2a.5-2: Statistical test limits for GSM 850 and GSM 900 Adjacent Channel Rejection

TU high no FH

0.4 to 0.9GHz

frames per s

Orig. BER

Derived

Target number

Target test

Target test time

Channel

bits per sec

class1b per s

requirement

test limit

of samples

time (s)

(hh:mm:ss)

AFS 12.2

Frames

12200

50

0,060000

0,074040

4660

93

00:01:33

Class1b

12200

8150

0,017000

0,020978

16446

2

00:00:02

AFS 7.95

frames @-3dB

7950

50

0,053000

0,065402

5275

106

00:01:46

Class1b @-3dB

7950

4200

0,010000

0,012340

27958

7

00:00:07

AFS

5.9

frames @-3dB

5900

50

0,020000

0,024680

13979

280

00:04:40

Class1b @-3dB

5900

3150

0,002300

0,002838

121556

39

00:00:39

AFS 4.75

frames @-3dB

4750

50

0,008200

0,010119

34095

682

00:11:22

Class1b @-3dB

4750

2800

0,001100

0,001357

254162

91

00:01:31

Table 14.5.1.2a.5-3: Statistical test limits for DCS 1800 and PCS 1900 Adjacent Channel Rejection

TU high no FH

1.8 to 1.9 GHz

frames per s

Orig. BER

Derived

Target number

Target test

Target test time

Channel

bits per sec

class1b 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 7.95

frames @-3dB

7950

50

0,020000

0,024680

13979

280

00:04:40

Class1b @-3dB

7950

4200

0,006800

0,008391

41115

10

00:00:10

AFS

5.9

frames @-3dB

5900

50

0,004100

0,005059

68190

1364

00:22:44

Class1b @-3dB

5900

3150

0,000790

0,000975

353897

112

00:01:52

AFS 4.75

frames @-3dB

4750

50

0,001000

0,001234

279579

5592

01:33:12

Class1b @-3dB

4750

2800

0,000210

0,000259

1331327

475

00:07:55

14.5.1.3 TCH/AHS

14.5.1.3.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.3.2 Conformance requirement

1. With adjacent channel interference at 200 kHz above and below the wanted signal and signal level 9 dB above the wanted signal level:

1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AHS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for TCH/AHS shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

2.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the Class Ib and Class II RBER shall be within the requirements of table 2 in 3GPP TS 05.05; 3GPP TS 05.05, 6.3.

14.5.1.3.3 Test purpose

1. To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio:

1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.

1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.

2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio:

2.1 Conformance requirement 2.1 is met with an allowance for the statistical significance of the test.

2.2 Conformance requirement 2.2 is met with an allowance for the statistical significance of the test.

14.5.1.3.4 Method of test

14.5.1.3.4.1 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 7,4 kbit/s.

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

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

14.5.1.3.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is set to TUHigh.

The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency 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 set to 6 dB above that of the wanted signal.

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 tests the frame erasure compliance for the TCH/AHS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.

e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency 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 set to 6 dB above that of the wanted signal.

f) 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.

g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal.

h) 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.

i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal.

j) 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.

Maximum/Minimum Duration of Test

Pre Rel-5 MS

Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 14 minutes (DCS1800, PCS1900).

Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).

Rel-5 onwards MS

Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 15 minutes (DCS1800, PCS1900).

Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).

14.5.1.3.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14-59: 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

990 Waves

743

424

349

330

165

156

m

min net test time

53

31

25

24

12

11

s @ 50km/h

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

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 rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14-60 or 14-61. Adjacent 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 05.05).

Table 14-60: Statistical test limits for GSM 400, GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection

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 7.4

frames @+3dB

7400

50

0,048000

0,059232

5825

116

00:01:56

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 5.15

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:

3728

Rel-5:

3994

Pre Rel-5:

6

Rel-5:

7

Pre Rel-5:

00:00:06

Rel-5:

00:00:07

Table 14-61: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection

TU high no FH

1.8 and 1.9 GHz

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 7.4

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:

6

Pre Rel-5:

00:00:06

Rel-5:

00:00:06

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

14.5.1.3a Adjacent channel rejection – TCH/AHS in TIGHTER configuration

14.5.1.3a.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.3a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.3

Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS

Modulation of wanted signal

GMSK

8-PSK

16-QAM

32-QAM

AQPSK

for adjacent (200 kHz) interference

C/Ia1 =

C/Ic ‑ 18 dB, see table 2af for TIGHTER MS

See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS

See table 2w, see table 2af for TIGHTER MS

See table

2w, see table 2af for TIGHTER MS

See table 2aa and 2ab

for adjacent (400 kHz) interference

C/Ia2 =

C/Ic ‑ 50 dB

C/Ic – 50 dB

C/Ic – 48 dB

C/Ic – 48 dB

[Note 1]

for adjacent (600 kHz) interference

C/Ia3 =

C/Ic ‑ 58 dB

C/Ic – 58 dB

NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.

NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.

3GPP TS 45.005 subclause 6.3.4

For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:

Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.

14.5.1.3a.3 Test purpose

1. For TCH/AHS FER, MS shall meet the reference interference performance mentioned in 3GPP TS 45.005 sub clause 6.3.3, for adjacent-channel interference ratio mentioned in table 2af according to propagation conditions.

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

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

14.5.1.3a.4 Method of test

14.5.1.3a.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 7,4 kbit/s.

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

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

14.5.1.3a.4.2 Procedure

a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh.

b) In addition to the wanted signal, the SS transmits 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 is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 2af.

c) 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.

d) The SS tests the frame erasure compliance for the TCH/AHS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

e) The SS determines the number of residual bit error events for the bits of the class Ib and class II, by examining sequences of at least the minimum number of samples of consecutive bits of class Ib and class II, Bits are only taken from those frames for which no bad frame indication was given.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.7 kbit/s and steps c) to e) are repeated

g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal as defined in Table 2.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 5.15 kbit/s and steps c) to e) are repeated.

i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal. Its amplitude is set to the reference interference ratio (‑41 dB for 400 kHz offset), meaning 41 dB above that of the wanted signal as defined in Table 2.

j) 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.

Maximum/Minimum Duration of Test

Maximum: 27 minutes (GSM850), 26 minutes (GSM900), 15 minutes (DCS1800, PCS1900).

Minimum: 27 minutes (GSM850), 26 minutes (GSM900), 13 minutes (DCS1800), 12 minutes (PCS1900).

14.5.1.3a.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14.5.1.3a.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

990 Waves

743

424

349

330

165

156

m

min net test time

53

31

25

24

12

11

s @ 50km/h

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

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 rates measured for different channels and under the different propagation conditions shall be tested according to the values given in table 14.5.1.3a.5-2 and 14.5.1.3a.5-3.

Table 14.5.1.3a.5-2: Statistical test limits for GSM 850 and GSM 900 Adjacent Channel Rejection

TU high no FH

0.4 to 0.9GHz

frames per s

Orig. BER

Derived

Target number

Target test

Target test time

class 1b per s

require-ment

test limit

of samples

time (s)

(hh:mm:ss)

Channel

bits per sec

class II per s

AHS 7.4

frames @+3dB

7400

50

0,048000

0,059232

5825

116

00:01:56

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 5.15

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 14.5.1.3a.5-3: Statistical test limits for DCS 1800 and PCS 1900 Adjacent Channel Rejection

TU high no FH

1.8 and 1.9 GHz

frames per s

Orig. BER

Derived

Target number

Target test

Target test time

class1b per s

require-ment

test limit

of samples

time (s)

(hh:mm:ss)

Channel

bits per sec

class II per s

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

6

00:00:06

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

14.5.1.4 O-TCH/AHS

14.5.1.4.1 Definition

14.5.1.4.2 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

The corresponding interference ratio for adjacent channel interference shall be:

Modulation of wanted signal

GMSK

8-PSK

for adjacent (200 kHz) interference

C/Ia1

=

C/Ic ‑ 18 dB

See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels

for adjacent (400 kHz) interference

C/Ia2

=

C/Ic ‑ 50 dB

C/Ic –50 dB

for adjacent (600 kHz) interference

C/Ia3

=

C/Ic ‑ 58 dB

C/Ic –58 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:

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 adjacent channel performance, the wanted input signal level shall be set to the value calculated using the formulas above for co channel performance.

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.

14.5.1.4.3 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/AHS7.4, O-TCH/AHS6.7.

14.5.1.4.4 Method of test

14.5.1.4.4.1 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 7,4 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).

14.5.1.4.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) at a nominal frequency 400KHz above that of the wanted 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 –27dBm.

d) The SS sets the level of the wanted signal to –77dBm.

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 moves the interfering signal to a nominal frequency 200KHz below that of the wanted signal.

h) The SS sets the level of the interfering signal to –73dBm.

i) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,7 kbit/s.

j) The SS sets the level of the wanted signal to that indicated by Clev in table 14.5.1.4-2 or 14.5.1.4-3.

k) Steps e) 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).

14.5.1.4.5 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:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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 14.5.1.4-1: 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 14.5.1.4-2 and 14.5.1.4.3

Table 14.5.1.4-2: Statistical test limits for T-GSM 810, GSM 850 and GSM 900 O-TCH/AHS adj-chan interference

TU50 / No FH

0.8 to 0.9GHz

Clev (dBm)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

O-TCH/ AHS 7.4

Frames

n/a

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3950

0,001500

0.001851

186385

48

00:00:48

O-TCH/ AHS 6.7

Frames

-77.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3950

0,001500

0.001851

186385

48

00:00:48

Table 14.5.1.4-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/AHS adj-chan interference

TU50 / No FH

1.8 to 1.9GHz

Clev (dBm)

Samples per second

Orig. BER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

O-TCH/ AHS 7.4

Frames

n/a

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3950

0,001700

0.002098

164442

42

00:00:42

O-TCH/ AHS 6.7

Frames

-78.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3950

0,001500

0.001851

186385

48

00:00:48

14.5.1.5 O-TCH/WFS

14.5.1.5.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity, which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.5.2 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 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.

For equipment supporting 8-PSK, and for MS indicating support for Downlink Advanced Receiver Performance – phase I (see 3GPP TS 24.008), the applicable requirements in table 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m, 2n and 2p apply for both GMSK and 8-PSK modulated interfering signals. The corresponding interference ratio for adjacent channel interference shall be:

Modulation of wanted signal

GMSK

8-PSK

for adjacent (200 kHz) interference

C/Ia1

=

C/Ic ‑ 18 dB

See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels

for adjacent (400 kHz) interference

C/Ia2

=

C/Ic ‑ 50 dB

C/Ic –50 dB

for adjacent (600 kHz) interference

C/Ia3

=

C/Ic ‑ 58 dB

C/Ic –58 dB

NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.

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

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%

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

14.5.1.5.3 Test purpose

1 To verify that with a TUhigh adjacent channel interferer at 200 kHz above and below the wanted TUhigh signal frequency and the interfering signal at a level resulting in the specified interference ratio the MS does not exceed conformance requirements in tables 14.5.1.5-2/3 with an allowance for the statistical significance of the test.

2. To verify that with a TUhigh adjacent channel interferer at 400 kHz above and below a TUhigh wanted signal frequency and the interfering signal at a level resulting in the specified interference ratio the MS does not exceed conformance requirements in tables 14.5.1.5-2/3 with an allowance for the statistical significance of the test.

14.5.1.5.4 Method of test

14.5.1.5.4.1 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 15.85 kbit/s.

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

The SS transmits Standard Test Signal C1 on the O-TCH (wanted signal) with an amplitude of -93 dBm + Ir + Corr +2 dB, where Ir equals C/Ic in table.14.5.1.5-2/3 and the values for Corr are as stated above.

14.5.1.5.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is set to TUHigh.

The unwanted signal is transmitted at a nominal frequency of 200 kHz above the nominal frequency of the wanted signal. The interference ratio is set to C/Ia1 from table 14.5.1.5-4.

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 tests the frame erasure compliance for the O-TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) 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 for which no bad frame indication was given.

e) The unwanted signal is moved to a nominal frequency 200 kHz below the nominal frequency of the wanted signal.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 12.65 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to C/Ia1 from table 14.5.1.5-4 and steps b) to d) are repeated.

g) The unwanted signal is moved to a nominal frequency 400 kHz above the nominal frequency of the wanted signal.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to (C/Ic – 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.5-2 and 14.5.1.5-3). Steps b) to d) are repeated.

i) The unwanted signal is moved to a nominal frequency 400 kHz below the nominal frequency of the wanted signal.

j) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s and the wanted signal level is set accordingly. The interference ratio is set to (C/Ic – 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.5-2 and 14.5.1.5-3). Steps b) to d) are repeated.

Maximum/Minimum Duration of Test

Maximum: 14 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 7 minutes (DCS1800 and PCS1900).

Minimum: 14 minutes (GSM700, T-GSM 810, GSM850 and GSM900), 7 minutes (DCS1800 and PCS1900).

14.5.1.5.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14.5.1.5-1: 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

990 Waves

743

424

349

330

165

156

m

min net test time

53

31

25

24

12

11

s @ 50km/h

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 rates measured for different channels and under the different propagation conditions, under any combination of normal and extreme test voltages and ambient temperatures, shall be tested according to the values given in table 14.5.1.5-2 or 14.5.1.5-3. Adjacent 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 05.05). Where an entry in the table is ‘-‘, this combination should not be tested.

Table 14.5.1.5-2: Statistical test limits for GSM 710, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection

TU high no FH,

0.4 to 0.9GHz

C/Ic (dB)

samples
per s

Orig. BER/FER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time (hh:mm:ss)

WFS15.85

frames

13.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

12250

0,004500

0,005553

62129

5

00:00:05

WFS12.65

frames

11.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

9050

0,003500

0,004319

79880

9

00:00:09

WFS 8.85

frames

10.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

5650

0,003500

0,004319

79880

15

00:00:15

WFS 6.60

frames

9.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3900

0,001500

0,001851

186386

48

00:00:48

Table 14.5.1.5-3: Statistical test limits for DCS 1800 and PCS 1900 adjacent channel rejection

TU high no FH

1.8 to 1.9GHz

C/Ic (dB)

samples
per s

Orig. BER/FER requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time
(hh:mm:ss)

WFS15.85

frames

12.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

12250

0,005000

0,006170

55916

5

00:00:05

WFS12.65

frames

10.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

9050

0,003600

0,004442

77668

9

00:00:09

WFS 8.85

frames

9.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

5650

0,004200

0,005183

66564

12

00:00:12

WFS 6.60

frames

8.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3900

0,002000

0,002468

139790

36

00:00:36

Table 14.5.1.5-4: Adjacent channel interference ratio C/Ia1 for 8PSK-modulated WB-AMR channels

Type of Channel

GSM 850 and GSM 900

DCS 1 800 & PCS 1 900

Propagation condition

TU50(no FH)

TU50(no FH)

O-TCH/ WFS15.85

dB

-5

-5.5

O-TCH/ WFS12.65

dB

-7

-7.5

14.5.1.6 Adjacent channel interference O-TCH/WHS

14.5.1.6.1 Definition

14.5.1.6.2 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

The corresponding interference ratio for adjacent channel interference shall be:

Modulation of wanted signal

GMSK

8-PSK

for adjacent (200 kHz) interference

C/Ia1

=

C/Ic ‑ 18 dB

See table 2l for speech, see tables 2f, 2g, 2h, 2i and 2n for other channels

for adjacent (400 kHz) interference

C/Ia2

=

C/Ic ‑ 50 dB

C/Ic –50 dB

for adjacent (600 kHz) interference

C/Ia3

=

C/Ic ‑ 58 dB

C/Ic –58 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:

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

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 adjacent channel performance, the wanted input signal level shall be set to the value calculated using the formulas above for co channel performance.

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/WHSy) FER £ 1%

3GPP TS 45.005, subclauses 6.2, 6.3.

14.5.1.6.3 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/WHS8.85, O-TCH/WHS6.6.

14.5.1.6.4 Method of test

14.5.1.6.4.1 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 8,85 kbit/s.

The SS transmits Standard Test Signal C1 on the traffic channel (wanted signal) with an amplitude of -93 dBm + Ir + Corr +2 dB, where Ir equals C/Ic in table. 14.5.1.6-2 and the values for Corr are as stated above.

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

14.5.1.6.4.2 Procedure

a) In addition to the wanted signal, the SS produces an independent, uncorrelated interfering signal, Standard Test Signal I1 (unwanted signal) at a nominal frequency 400KHz above that of the wanted 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 interference ratio is set to (C/Ic – 50dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal, (C/Ic is the co-channel interference ratio from table 14.5.1.6-2).

d) 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.

e) 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.

f) The SS moves the interfering signal to a nominal frequency 200KHz below that of the wanted signal.

g) The SS uses a Channel Mode Modify procedure to change the active codec set to 6,6 kbit/s.

h) The SS sets the level of the wanted signal accordingly.

i) The interference ratio is set to C/Ia1 from table 14.5.1.6-2.

j) Steps d) to e) 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).

14.5.1.6.5 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:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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 14.5.1.6-1: 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 14.5.1.6-2 and 14.5.1.6.3

Table 14.5.1.6-2: Statistical test limits for GSM 850 and GSM 900 O-TCH/WHS adj-chan interference

TU high no FH

C/Ia1 (dB)

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)

O-TCH/ WHS 8.85

Frames

15.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

5650

0,001100

0,001357

254237

45

00:00:45

O-TCH/ WHS 6.60

Frames

-5.0

13.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3900

0,001500

0,001851

186386

48

00:00:48

Table 14.5.1.6-3: Statistical test limits for DCS 1 800 and PCS 1 900 O-TCH/WHS adj-chan interference

TU high no FH

C/Ia1 (dB)

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)

O-TCH/ WHS 8.85

Frames

14.5

50

0,010000

0,012340

27958

560

00:09:20

Class1b

5650

0,001200

0, 001481

232951

42

00:00:42

O-TCH/ WHS 6.60

Frames

-5.0

13.0

50

0,010000

0,012340

27958

560

00:09:20

Class1b

3900

0,001600

0,001974

174772

45

00:00:45

14.5.1.7 TCH/WFS Adjacent Channel Interference

14.5.1.7.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity, which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.7.2 Conformance requirement

At reference adjacent 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.

At reference adjacent channel interference the TCH/WFS FER shall meet the reference performance stated in 3GPP TS 45.005 subclause 6.2.

The reference performance shall be:

For speech channels (TCH/WHSy) FER £ 1%

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 3GPP TS 45.005 subclause 6.2.

The corresponding interference ratio for adjacent channel interference shall be:

Modulation of wanted signal

GMSK

for adjacent (200 kHz) interference

C/Ia1

=

C/Ic ‑ 18 dB

for adjacent (400 kHz) interference

C/Ia2

=

C/Ic ‑ 50 dB

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

Reference: 3GPP TS 45.005 Subclause 2, 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

14.5.1.7.3 Test purpose

To verify that with an adjacent channel interferer at 200 kHz and at 400kHz above and below the wanted signal the MS does not exceed conformance requirements in tables 14.5.1.7-3/4 for three given codec rates under propagation condition TUhigh (for GSM 400, GSM 700, T-GSM 810, GSM 850, GSM 900, DCS 1800 and PCS 1900) with no frequency hopping, with an allowance for the statistical significance of the test.

14.5.1.7.4 Method of Test

14.5.1.7.4.1 Initial conditions

A call is set up according to the generic call set up procedure on 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 commands the MS to create the traffic channel loop back signalling erased frames.

The SS transmits Standard Test Signal C1 on the TCH (wanted signal) with an amplitude of -93 dBm + Ir + Corr, where Ir equals C/Ic in table.14.5.1.7-2 and the values for Corr are as stated above

14.5.1.7.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 shall be set to (C/Ic – 18 dB) for adjacent channel interference of 200 kHz and (C/Ic – 50 dB) for adjacent channel interference of 400 kHz respectively. The co-channel interference values C/Ic can be found in table 14.5.1.7-2.

The fading characteristic of the wanted and the unwanted signal is set to TUHigh.

The unwanted signal is transmitted at a nominal frequency of 200 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 18 dB), i.e. the amplitude of the unwanted signal is set to (18 dB – C/Ic) above that of the wanted signal.

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 tests the frame erasure compliance for the TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) 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 for which no bad frame indication was given.

e) The unwanted signal is moved to a nominal frequency of 200 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 18 dB), i.e. the amplitude of the unwanted signal is set to (18 dB – C/Ic) above that of the wanted signal.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.

g) The unwanted signal is moved to a nominal frequency of 400 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.

i) The unwanted signal is moved to a nominal frequency of 400 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. Steps b) to d) are repeated.

Maximum/Minimum Duration of Test

Maximum: 5 minutes (GSM850, GSM900), 23 minutes (DCS1800, PCS1900).

Minimum: 2 minutes (GSM850, GSM900), 4 minutes (DCS1800, PCS1900).

14.5.1.7.5 Test requirements

Testing the adjacent 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 the limit lines refer to Annex 6.2

Wrong decision risk F for one single error ratio test:

Fpass   =   Ffail   =   F and F   =   0.2%

Wrong decision probability D per test step:

Dpass   =   Dfail   =   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.

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 14.5.1.7-1: Minimum test times due to TU high fading conditions

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.

Table 14.5.1.7-2: Co-channel interference ratio C/Ic for GMSK-modulated WB-AMR channels

Type of Channel

GSM 850 and GSM 900

DCS 1 800 & PCS 1 900

Propagation condition

TU50(no FH)

TU50(no FH)

TCH/ WFS12.65

dB

14.5

13.0

TCH/ WFS8.85

dB

11.5

10.0

TCH/ WFS6.60

dB

10.5

9.0

Table 14.5.1.7-3: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection

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)

WFS 12.65

frames

12650

50

0.010000

0.012340

27958

560

00:09:20

Class1b

12650

9050

0,004000

0,004936

69895

8

00:00:08

WFS 8.85

frames

8850

50

0,010000

0,012340

27958

560

00:09:20

Class1b

8850

5650

0,004200

0,005183

66566

12

00:00:12

WFS 6.60

frames

6600

50

0,010000

0,012340

27958

560

00:09:20

Class1b

6600

3900

0,001600

0,001974

174737

45

00:00:45

Table 14.5.1.7-3: Statistical test limits for DCS 1 800 and PCS 1 900 adjacent channel rejection

TU high 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)

WFS 12.65

frames

12650

50

0,010000

0,012340

27958

560

00:09:20

Class1b

12650

9050

0,006300

0,007774

44378

5

00:00:05

WFS 8.85

frames

8850

50

0,010000

0,012340

27958

560

00:09:20

Class1b

8850

5650

0,006400

0,007898

43684

8

00:00:08

WFS 6.60

frames

6600

50

0,010000

0,012340

27958

560

00:09:20

Class1b

6600

3900

0,002700

0,003332

103548

27

00:00:27

14.5.1.7a Adjacent Channel Interference – TCH/WFS in TIGHTER configuration

14.5.1.7a.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity, which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is not tested in this subclause.

14.5.1.7a.2 Conformance requirement

3GPP TS 45.005 subclause 6.3.3

Table 6.3-1a: Reference interference ratio requirements in adjacent channels for Packet-switched (Normal symbol-rate), Enhanced circuit-switched data, Wideband AMR and 8-PSK modulated AMR channels, speech and associated control channels in VAMOS mode, TIGHTER – MS

Modulation of wanted signal

GMSK

8-PSK

16-QAM

32-QAM

AQPSK

for adjacent (200 kHz) interference

C/Ia1 =

C/Ic ‑ 18 dB, see table 2af for TIGHTER MS

See table 2l for speech, see tables 2g, 2i, 2n and 2w for other channels, see table 2af for TIGHTER MS

See table 2w, see table 2af for TIGHTER MS

See table
2w, see table 2af for TIGHTER MS

See table 2aa and 2ab

for adjacent (400 kHz) interference

C/Ia2 =

C/Ic ‑ 50 dB

C/Ic – 50 dB

C/Ic – 48 dB

C/Ic – 48 dB

[Note 1]

for adjacent (600 kHz) interference

C/Ia3 =

C/Ic ‑ 58 dB

C/Ic – 58 dB

NOTE 1: The adjacent channel interference @ 400 kHz requirement (C/Ia2) does not apply to channels in VAMOS mode.

NOTE: The C/Ia3 figure is given for information purposes and will not require testing. It was calculated for the case of an equipment with an antenna connector, operating at output power levels of +33 dBm and below. Rejection of signals at 600 kHz is specified in subclause 5.1.

3GPP TS 45.005 subclause 6.3.4

For all adjacent channel (200 kHz) requirements specified in table 2af for TIGHTER MS, the wanted signal level shall be: -75 dBm + Iar + Corr, where:

Iar = the adjacent channel (200 kHz) interference ratio according to table 2af
Corr = the correction factor for reference performance according to table 6.2-4.

14.5.1.7a.3 Test purpose

To verify that with an adjacent channel interferer at 200 kHz above and below the wanted signal the MS does not exceed conformance requirements in tables 14.5.1.7a-3/4 for three given codec rates under propagation condition TUhigh (for GSM 850, GSM 900, DCS 1800 and PCS 1900) with no frequency hopping, with an allowance for the statistical significance of the test.

14.5.1.7a.4 Method of Test

14.5.1.7a.4.1 Initial conditions

A call is set up according to the generic call set up procedure on 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 commands the MS to create the traffic channel loop back signalling erased frames.

The SS transmits Standard Test Signal C1 on the TCH (wanted signal) with an amplitude of -75 dBm + Iar + Corr, where Iar can be found in table.14.5.1.7a-2 and the values for Corr are as stated above.

14.5.1.7a.4.2 Procedure

a) The fading characteristic of the wanted and the unwanted signal is set to TUHigh.

In addition to the wanted signal, the SS transmits 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 is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 14.5.1.7a-2.

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 tests the frame erasure compliance for the TCH/WFS by examining at least the minimum number of samples of consecutive frames. The number of frame erasure events is recorded.

d) 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 for which no bad frame indication was given.

e) The unwanted signal is moved to a nominal frequency of 200 kHz below the nominal frequency of the wanted signal. Its amplitude is set according to the specified reference interference ratio as in table 14.5.1.7a-2.

f) The SS uses a Channel Mode Modify procedure to change the active codec set to 8.85 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.

g) The unwanted signal is moved to a nominal frequency of 400 kHz above the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. The co-channel interference values C/Ic can be found in table 14.5.1.7a-3.

h) The SS uses a Channel Mode Modify procedure to change the active codec set to 6.60 kbit/s. The wanted signal level is set accordingly and steps b) to d) are repeated.

i) The unwanted signal is moved to a nominal frequency of 400 kHz below the nominal frequency of the wanted signal. The interference ratio is set to (C/Ic – 50 dB), i.e. the amplitude of the unwanted signal is set to (50 dB – C/Ic) above that of the wanted signal. Steps b) to d) are repeated. The co-channel interference values C/Ic can be found in table 14.5.1.7a-3.

Maximum/Minimum Duration of Test

Maximum: 5 minutes (GSM850, GSM900), 23 minutes (DCS1800, PCS1900).

Minimum: 2 minutes (GSM850, GSM900), 4 minutes (DCS1800, PCS1900).

14.5.1.7a.5 Test requirements

Testing the adjacent 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 the 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 14.5.1.7a-1: Minimum test times due to TU high fading conditions

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

The error rates measured for different channels shall be tested according to the values given in table 14.5.1.7a-4 or 14.5.1.7a-5.

Table 14.5.1.7a-2: Adjacent channel interference ratio Iar for GMSK-modulated WB-AMR channels and TIGHTER (acc. TS 45.005 table 2af)

Type of Channel

GSM 850 and GSM 900

DCS 1 800 & PCS 1 900

Propagation condition

TU50(no FH)

TU50(no FH)

TCH/ WFS12.65

dB

-17.5

-19.0

TCH/ WFS8.85

dB

-20.5

-22.0

TCH/ WFS6.60

dB

-21.5

-23.0

Table 14.5.1.7a-3: Co-channel interference ratio C/Ic for GMSK-modulated WB-AMR channels (acc. TS 45.005 table 2j)

Type of Channel

GSM 850 and GSM 900

DCS 1 800 & PCS 1 900

Propagation condition

TU50(no FH)

TU50(no FH)

TCH/ WFS12.65

dB

14.5

13.0

TCH/ WFS8.85

dB

11.5

10.0

TCH/ WFS6.60

dB

10.5

9.0

Table 14.5.1.7a-4: Statistical test limits for GSM 700, T-GSM 810, GSM 850 and GSM 900 adjacent channel rejection

TU high 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)

WFS 12.65

Frames

12650

50

0.010000

0.012340

27958

560

00:09:20

Class1b

12650

9050

0,004000

0,004936

69895

8

00:00:08

WFS 8.85

Frames

8850

50

0,010000

0,012340

27958

560

00:09:20

Class1b

8850

5650

0,004200

0,005183

66566

12

00:00:12

WFS 6.60

Frames

6600

50

0,010000

0,012340

27958

560

00:09:20

Class1b

6600

3900

0,001600

0,001974

174737

45

00:00:45

Table 14.5.1.7a-5: Statistical test limits for DCS 1800 and PCS 1900 adjacent channel rejection

TU high 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)

WFS 12.65

Frames

12650

50

0,010000

0,012340

27958

560

00:09:20

Class1b

12650

9050

0,006300

0,007774

44378

5

00:00:05

WFS 8.85

Frames

8850

50

0,010000

0,012340

27958

560

00:09:20

Class1b

8850

5650

0,006400

0,007898

43684

8

00:00:08

WFS 6.60

Frames

6600

50

0,010000

0,012340

27958

560

00:09:20

Class1b

6600

3900

0,002700

0,003332

103548

27

00:00:27

14.5.2 Adjacent channel rejection – control channels

14.5.2.1 Definition

The adjacent channel selectivity 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 signal in the adjacent channel.

The adjacent channel can be the adjacent in the RF spectrum or in time. There are therefore two types of adjacent channel selectivity:

1) Adjacent RF channel selectivity which is specifically tested in this subclause.

2) Adjacent Time Slot selectivity, which is implicitly tested in test 14.2.1.

14.5.2.2 Conformance requirement

1. For adjacent channel interference at 200 kHz above and below the wanted signal frequency and signal level 9 dB above the wanted signal level:

1.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

1.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3, annex D subclauses D.2.1and D.2.2.

2. For adjacent channel interference at 400 kHz above and below the wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 subclause 6.3.

2.2 For a TUhigh faded wanted signal and a TUhigh adjacent channel interferer, the FER for the FACCH/F does not exceed the requirements of table 2 in 3GPP TS 05.05 under extreme test conditions; 3GPP TS 05.05 subclause 6.3, annex D subclauses D.2.1and D.2.2.

If a system simulator does not support the faded interferer, a static adjacent interferer has to be used. The following requirements apply;

2 :

2. 3 For a TUhigh faded wanted signal and a static adjacent channel interferer, the FER for the FACCH/F shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 17,1 %; 3GPP TS 05.05, subclause 6.3;

DCS 1 800 and PCS 1 900: 6,1 %; 3GPP TS 05.05, subclause 6.3.

2. 4 For a TUhigh faded wanted signal and a static adjacent channel interferer, the FACCH/F shall be better than:

GSM 400, GSM 700, GSM 850 and GSM 900: 17,1 %;

DCS 1 800 and PCS 1 900: 6,1 %.

under extreme test conditions; 3GPP TS 05.05, subclause 6.3, annex D subclauses D.2.1 and D.2.2.

3GPP TS 45.05 subclause 2:

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

14.5.2.3 Test purpose

1 To verify that with TUhigh adjacent channel interference at 200 kHz above and below a TUhigh wanted signal frequency and signal level 9 dB above the wanted signal level:

1.1 Conformance requirement 1.1 is met with an allowance for the statistical significance of the test.

1.2 Conformance requirement 1.2 is met with an allowance for the statistical significance of the test.

2. To verify that with TUhigh or static adjacent channel interference at 400 kHz above and below a TUhigh wanted signal frequency and signal level 41 dB above the wanted signal level:

2.1 Conformance requirement 2.1 or 2.3 is met with an allowance for the statistical significance of the test.

2.2 Conformance requirement 2.2 or 2.4 is met with an allowance for the statistical significance of the test.

14.5.2.4 Method of test

14.5.2.4.1 Initial conditions

A call is set up according to the generic call set up procedure on a TCH/F in the mid ARFCN range. Any one of the supported TCH/(F9,6, F4,8, or F2,4) or TCH (Signalling Only) shall be used.

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

14.5.2.4.2 Procedure

a) In addition to the wanted signal, the SS transmits 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 fading characteristic of the wanted and the unwanted signal is TUhigh.

The unwanted signal is transmitted at a nominal frequency 200 kHz above the nominal frequency of the wanted signal. Its amplitude is set to 9dB above that of the wanted signal.

b) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to the adjacent 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.

c) The measurement of step b) is repeated with the unwanted signal on a frequency at the same displacement from, but below, the frequency of the wanted signal.

d) The measurement of steps a) to c) is repeated for a displacement of the unwanted signal of 400 kHz, and with the amplitude of the unwanted signal 41 dB above the level of the wanted input signal. The fading characteristic of the unwanted signal is set to TUhigh. If, due to system simulator limitation, fading is not possible
a static interferer may be used. Different test limits apply (see table 14-23).

e) Steps a) to d) are repeated under extreme test conditions.

14.5.2.5 Test requirements

Table 14-23: Limits for adjacent channel selectivity

Interference at

Channel

Type of measurement

Test limit error rate %

Minimum No. of samples

Test limit error rate %

Minimum No. of samples

200 kHz/400 kHz
interferer faded

FACCH/F

FER

10,640

5 639

3,808

15 756

400 kHz interferer static

FACCH/F

FER

19,152

3 133

6,832

8 782

The error rates measured in this test shall not exceed the test limit error rates given in table 14-23. This shall apply for any combination of normal and extreme test voltages and ambient temperature, and with the interfering signals at either side of the wanted frequency.

NOTE: A static unwanted signal may be used to avoid a potential problem with the noise floor of the fading simulator.