14.7 Blocking and spurious response

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

14.7.1 Blocking and spurious response – speech channels

14.7.1.1 Definition

Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.

14.7.1.2 Conformance requirement

1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 05.05 subclause 5.1.

The reference sensitivity performance as specified in table 1 of 3GPP TS 05.05 shall be met when the following signals are simultaneously input to the receiver:

– a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 05.05 subclause 6.2;

– a continuous, static sine wave signal at a level as in the table of 3GPP TS 05.05 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz;

with the following exceptions, called spurious response frequencies:

a) GSM 700, GSM 850 and GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);

DCS 1 800: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);

PCS 1 900: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);

GSM 400: in band, for a maximum of three occurrences;

b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).

where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 05.05, subclause 5.1.

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.

14.7.1.3 Test purpose

1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.

2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.

NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 05.05, are allowed to ensure a fair test of the MS.

14.7.1.4 Method of test

14.7.1.4.1 Initial conditions

A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same – or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.

The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).

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

14.7.1.4.2 Procedure

a) The SS produces a static wanted signal and a static interfering signal at the same time. The amplitude of the wanted signal is set to 4 dB above the reference sensitivity level.

b) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated in step c) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.

However, frequencies in the range FR ±600 kHz are excluded.

NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.

c) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) below:-

i) The total frequency range formed by:

GSM 400 the frequencies between Flo + (IF1 + IF2 + … + IFn +3,6 MHz)

and Flo – (IF1 + IF2 + … + IFn + 3,6 MHz).

GSM 700 and T-GSM 810 the frequencies between Flo + (IF1 + IF2 + … + IFn +7,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 7,5 MHz).

GSM 850 and P-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn +1 2,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 12,5 MHz).

E-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 17,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 17,5 MHz).

DCS 1 800 the frequencies between Flo + (IF1 + IF2 + … +IFn + 37,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 37,5 MHz).

PCS 1 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 30,0 MHz)

and Flo – (IF1 + IF2 + … + IFn + 30,0 MHz).

and

the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.

Measurements are made at 200 kHz intervals.

ii) The three frequencies IF1, IF1 + 200 kHz, IF1 – 200 kHz.

iii) The frequencies:

mFlo + IF1;

mFlo – IF1;

mFR;

where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.

The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.

Where:

Flo – local oscillator applied to first receiver mixer

IF1 … IFn – are the n intermediate frequencies

Flo, IF1, IF2 … IFn – shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.

d) The level of the unwanted signal is set according to table 14-28.

Table 14-28a: Level of unwanted signals

GSM 900

DCS 1 800

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

FR ±800 kHz to FR ±1,6 MHz

70

80

70

FR ±1,6 MHz to FR ±3 MHz

80

90

80

915 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 980 MHz

90

90

1 785 MHz to FR – 3 MHz

87

FR + 3 MHz to 1 920 MHz

87

835 MHz to < 915 MHz

113

113

> 980 MHz to 1 000 MHz

113

113

100 kHz to < 835 MHz

90

90

> 1 000 MHz to 12,75 GHz

90

90

100 kHz to 1 705 MHz

113

> 1 705 MHz to < 1 785 MHz

101

> 1 920 MHz to 1 980 MHz

101

> 1 980 MHz to 12,75 GHz

90

Table 14-28b: Level of unwanted signals

GSM 450

GSM 480

Small MS

Other MS

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

75

FR ±800 kHz to FR ±1,6 MHz

70

80

70

80

FR ±1,6 MHz to FR ±3 MHz

80

90

80

90

457,6 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 473,6 MHz

90

90

486 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 502 MHz

90

90

100 kHz to < 457,6 MHz

113

113

> 473,6 MHz to 12,75 GHz

113

113

100 kHz to < 486 MHz

113

113

> 502 MHz to 12,75 GHz

113

113

Table 14-28c: Level of unwanted signals

PCS 1 900

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

FR ±800 kHz to FR ±1,6 MHz

70

FR ±1,6 MHz to FR ±3 MHz

80

1 910 MHz to FR – 3 MHz

87

FR + 3 MHz to 2 010 MHz

87

100 kHz to 1 830 MHz

113

> 1 830 MHz to < 1 910 MHz

101

> 2 010 MHz to 2 070 MHz

101

> 2 070 MHz to 12,75 GHz

90

Table 14-28d: Level of unwanted signals

GSM 710

GSM 750

T-GSM 810

GSM 850

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

70

70

70

FR ±800 kHz to FR ±1,6 MHz

70

70

70

70

FR ±1,6 MHz to FR ±3 MHz

80

80

80

80

678 MHz to FR – 3 MHz

90

FR + 3 MHz to 728 MHz

90

727 MHz to FR – 3 MHz

90

FR + 3 MHz to 777 MHz

90

831 MHz to FR – 3 MHz

90

FR + 3 MHz to 886 MHz

90

849 MHz to FR – 3 MHz

90

FR + 3 MHz to 914 MHz

90

678 MHz to FR – 3 MHz

113

FR + 3 MHz to 728 MHz

113

100 kHz to < 727 MHz

113

> 777 MHz to 12,75 GHz

113

100 kHz to 831 MHz

113

> 886 MHz to 12,75 MHz

113

100 kHz to < 849 MHz

113

> 914 MHz to 12,75 GHz

113

NOTE 1: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.

NOTE 2: For an E-GSM 900 MS the level of the unwanted signal in the band 905 MHz to < 915 MHz is relaxed to 108 dBuVemf( ).

NOTE 3: For a GSM 450 small MS the level of the unwanted signal in the band 450,4 MHz to < 457,6 MHz is relaxed to 108 dBuVemf( ). For a GSM 480 small MS the level of the unwanted signal in the band 478,8 MHz to < 486 MHz is relaxed to 108 dBuVemf( ).

e) 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.

The SS tests the RBER compliance for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II, where bits are taken only from those frames for which no bad frame indication was given. The number of error events is recorded.

If a failure is indicated it is noted and counted towards the allowed exemption totals.

In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also tested. This process is repeated until all channels constituting the group of failures is known.

14.7.1.5 Test requirements

The error rate measured in this test shall not exceed the conformance requirement. Testing the conformance requirement can be done either in the classical way with a fixed minimum number of samples (refer to section 14.7.1.5.2) or using statistical methods that lead to an early pass/fail decision with test time significantly reduced for MS with performance not on the limit (refer to section 14.7.1.5.1). Both methods are based on a bad DUT factor M = 1.5.

This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.

The following exceptions are allowed:

GSM 450: A maximum of three failures in the frequency band 457,6 MHz to 473,6 MHz.

A maximum of 24 failures in the combined bands 100 kHz to 457,6 MHz and 473,6 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 480: A maximum of three failures in the frequency band 486 MHz to 502 MHz.

A maximum of 24 failures in the combined bands 100 kHz to 486 MHz and 502 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 710: A maximum of six failures in the frequency band 678 MHz to 728 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 678 MHz and 728 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 750: A maximum of six failures in the frequency band 727 MHz to 782 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 727 MHz and 782 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 810: A maximum of six failures in the frequency band 831 MHz to 886 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 831 MHz and 886 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 850: A maximum of six failures in the frequency band 849 MHz to 914 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 849 MHz and 914 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 900: A maximum of six failures in the frequency band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

DCS 1 800: A maximum of twelve failures in the band 1 785 MHz to 1 920 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 1 785 MHz and 1 920 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

PCS 1 900: A maximum of twelve failures in the band 1 910 MHz to 2 010 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 1 910 MHz and 2 010 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.1.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf(  ) and the performance requirement is once again that stated in the table above.

The number of Error Events recorded in this test shall not exceed the test limit error rate values given below, when using either the accelerated BER method or the maximum number of samples. No failures are allowed at this lower unwanted signal level.

14.7.1.5.1 Statistical testing of blocking and spurious response performance with early decision

For more information on statistical testing of blocking and spurious response performance, especially the definition of limit lines refer to Annex 7.

Wrong decision risk F for one single error rate test:

Fpass   ≠   Ffail As the blocking test case comprises of many BER tests the wrong decision risk for a fail decision of one single error rate test must be smaller than the wrong decision risk for a pass decision to avoid an increased probability of an erroneous fail decision.

Fpass   =   0.2%

Ffail    =   0.02%

Wrong decision probability D per test step:

Dpass    ≠   Dfail

Dpass    =   0.008%

Dfail     =      0.0008%

Parameters for limit lines:

1. Dpass    = 0.008% wrong decision probability per test step for early pass decision.

Dfail     =  0.0008% wrong decision probability per test step for early fail decision.

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

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

For an early pass decision ne   ≥   1

For an early fail decision ne   ≥   8

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

The statistical test limits for blocking performance with early decision are given in Table 14-29a

Table 14-29a: Statistical test limits for blocking performance

Channel 

 bits per s

Orig. RBER

requirement

Derived test limit

Target number of samples

Target test time (s)

Target test time

(hh:mm:ss)

TCH/FS Class II

3900

0,020000

0,025020

16107

4

00:00:04

14.7.1.5.2 Fixed testing of blocking and spurious response performance with minimum number of samples

The fixed testing of the conformance requirement is done using the minimum number of samples and the limit RBER given in table 14‑29c

Table 14-29c: Limits for blocking

Channel

Type of measurement

Test limit error rate %

Minimum number of samples

TCH/FS Class II

RBER

2,439

8 200

14.7.2 Blocking and spurious response – control channels

14.7.2.1 Definition

Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.

14.7.2.2 Conformance requirement

1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 45.005 subclause 5.1.

The reference sensitivity performance as specified in table 1 of 3GPP TS 45.005 shall be met when the following signals are simultaneously input to the receiver:

– a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 45.005 subclause 6.2;

– a continuous, static sine wave signal at a level as in the table of 3GPP TS 45.005 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz.

with the following exceptions, called spurious response frequencies:

a) GSM 700, GSM 850 or GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);

DCS 1 800: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);

PCS 1 900: in band, for a maximum of twelve occurrences (which if grouped shall not exceed three contiguous occurrences per group);

GSM 400: in band, for a maximum of three occurrences;

b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).

where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 45.005, subclause 5.1.

14.7.2.3 Test purpose

1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.

2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.

NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 45.005, are allowed to ensure a fair test of the MS.

14.7.2.4 Method of test

14.7.2.4.1 Initial conditions

A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same – or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.

The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).

14.7.2.4.2 Procedure

NOTE: To reduce the overall test time an optional pre-measurment to detect blocking events can be perfomed prior to the start of the test procedure. As an outcome of the pre-measurement the test is performed only for blocking event related frequencies.a) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to interfering signals, the MS may not be able to acknowledge the Layer 2 frame. Frame erasures are indicated by repeated L2 frames.

b) The SS is set to produce a TUhigh wanted signal and a static interfering signal at the same time. The SS sets the amplitude of the wanted signal to 4 dB above the reference sensitivity level.

c) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated at step f) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.

However, frequencies in the range FR ±600 kHz are excluded.

NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.

d) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) which follow:

i) The total frequency range formed by:-

GSM 400 the frequencies between Flo + (IF1 + IF2 + … + IFn + 3,6 MHz)

and Flo – (IF1 + IF2 + … + IFn + 3,6 MHz).

GSM 700 the frequencies between Flo + (IF1 + IF2 + … + IFn + 7,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 7,5 MHz).

GSM 850 the frequencies between Flo + (IF1 + IF2 + … + IFn + 12,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 12,5 MHz).

P-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 12,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 12,5 MHz).

E-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn +1 7,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 17,5 MHz).

DCS 1 800 the frequencies between Flo + (IF1 + IF2 + … + IFn + 37,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 37,5 MHz).

PCS 1 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 30,0 MHz)

and Flo – (IF1 + IF2 + … + IFn + 30,0 MHz).

and

the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.

Measurement are made at 200 kHz intervals.

ii) The three frequencies IF1, IF1 + 200 kHz, IF1 – 200 kHz.

iii) The frequencies:

mFlo + IF1;

mFlo – IF1;

mFR;

where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.

The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.

Where:

Flo – local oscillator applied to first receiver mixer

IF1 … IFn – are the n intermediate frequencies

Flo, IF1, IF2 … IFn – shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.

e) The level of the unwanted signal is set according to table 14-30.

Table 14-30a: Level of unwanted signals

GSM 900

DCS 1 800

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

FR ±800 kHz to FR ±1,6 MHz

70

80

70

FR ±1,6 MHz to FR ±3 MHz

80

90

80

915 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 980 MHz

90

90

1785 MHz to FR – 3 MHz

87

FR + 3 MHz to 1 920 MHz

87

835 MHz to < 915 MHz

113

113

> 980 MHz to 1 000 MHz

113

113

100 kHz to < 835 MHz

90

90

> 1 000 MHz to 12,75 GHz

90

90

100 kHz to 1 705 MHz

113

> 1 705 MHz to < 1 785 MHz

101

> 1 920 MHz to 1 980 MHz

101

> 1 980 MHz to 12,75 GHz

90

Table 14-30b: Level of unwanted signals

GSM 450

GSM 480

Small MS

Other MS

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

75

FR ±800 kHz to FR ±1,6 MHz

70

80

70

80

FR ±1,6 MHz to FR ±3 MHz

80

90

80

90

457,6 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 473,6 MHz

90

90

486 MHz to FR – 3 MHz

90

90

FR + 3 MHz to 502 MHz

90

90

100 kHz to < 457,6 MHz

113

113

> 473,6 MHz to 12,75 GHz

113

113

100 kHz to < 486 MHz

113

113

> 502 MHz to 12,75 GHz

113

113

Table 14-30c: Level of unwanted signals

PCS 1 900

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

FR ±800 kHz to FR ±1,6 MHz

70

FR ±1,6 MHz to FR ±3 MHz

80

1 910 MHz to FR – 3 MHz

87

FR + 3 MHz to 2 010 MHz

87

100 kHz to 1 830 MHz

113

> 1 830 MHz to < 1 910 MHz

101

> 2 010 MHz to 2 070 MHz

101

> 2 070 MHz to 12,75 GHz

90

Table 14-30d: Level of unwanted signals

GSM 710

GSM 750

T-GSM 810

GSM 850

FREQUENCY

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

70

70

70

FR ±800 kHz to FR ±1,6 MHz

70

70

70

70

FR ±1,6 MHz to FR ±3 MHz

80

80

80

80

678 MHz to FR – 3 MHz

90

FR + 3 MHz to 728 MHz

90

727 MHz to FR – 3 MHz

90

FR + 3 MHz to 777 MHz

90

831 MHz to FR – 3 MHz

90

FR + 3 MHz to 886 MHz

90

849 MHz to FR – 3 MHz

90

FR + 3 MHz to 914 MHz

90

678 MHz to FR – 3 MHz

113

FR + 3 MHz to 728 MHz

113

100 kHz to < 727 MHz

113

> 782 MHz to 12,75 GHz

113

100 kHz to 831 MHz

113

> 886 MHz to 12,75 MHz

113

100 kHz to < 849 MHz

113

> 914 MHz to 12,75 GHz

113

NOTE 1: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.

NOTE 2: For an E-GSM 900 MS the level of the unwanted signal in the band 905 MHz to < 915 MHz is relaxed to 108 dBuVemf( ).

NOTE 3: For a GSM 450 small MS the level of the unwanted signal in the band 450,4 MHz to <457,6 MHz is relaxed to 108 dBuVemf( ). For a GSM 480 small MS the level of the unwanted signal in the band 478,8 MHz to <486 MHz is relaxed to 108 dBuVemf( ).

f) The SS determines the number of frame erasure events during at least the minimum number of samples. If a failure is indicated, it is noted and counted towards the allowed exemption total.

In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also be tested. This process is repeated until all channels constituting the group of failures is known.

14.7.2.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate given in table 14-31.

This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.

Table 14-31: Limits for blocking

GSM 400 and GSM 900

DCS 1 800 and PCS 1 900

Channel

Type of measurement

Test limit error rate

Minimum No. of samples

Test limit error rate

Minimum No. of samples

FACCH/F

FER

8,961

6 696

4,368

13 736

The following exceptions are allowed:

GSM 450: A maximum of three failures in the frequency band 457,6 MHz to 473,6 MHz.

A maximum of 24 failures in the combined bands 100 kHz to 457,6 MHz and 473,6 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 480: A maximum of three failures in the frequency band 486 MHz to 502 MHz.

A maximum of 24 failures in the combined bands 100 kHz to 486 MHz and 502 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 710: A maximum of six failures in the frequency band 678 MHz to 728 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 678 MHz and 728 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 750: A maximum of six failures in the frequency band 727 MHz to 782 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 727 MHz and 782 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

T-GSM 810: A maximum of six failures in the frequency band 831 MHz to 886 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 831 MHz and 886 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 850: A maximum of six failures in the frequency band 849 MHz to 914 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 849 MHz and 914 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

GSM 900: A maximum of six failures in the band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

DCS 1 800: A maximum of twelve failures in the band 1785 MHz to 1 920 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 1785 MHz and 1 920 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

PCS 1 900: A maximum of twelve failures in the band 1 910 MHz to 2 010 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 1 910 MHz and 2 010 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.2.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf(  ) and the performance requirement is once again that stated above.

The number of Error Events recorded in this test shall not exceed the test limit error rate values given above, when using the maximum number of samples.

No failures are allowed at this lower unwanted signal level.

14.7.3 Blocking and spurious response – speech channels for MS supporting the R-GSM or ER-GSM 900 band

14.7.3.1 Definition

Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.

14.7.3.2 Conformance requirement

1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 05.05 subclause 5.1.

The reference sensitivity performance as specified in table 1 of 3GPP TS 05.05 shall be met when the following signals are simultaneously input to the receiver:

– a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 05.05 subclause 6.2;

– a continuous, static sine wave signal at a level as in the table of 3GPP TS 05.05 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz.

With the following exceptions, called spurious response frequencies:

a) R-GSM 900 or ER-GSM 900: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);

b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).

Where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 05.05, subclause 5.1.

14.7.3.3 Test purpose

1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.

2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.

NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 05.05, are allowed to ensure a fair test of the MS.

14.7.3.4 Method of test

14.7.3.4.1 Initial conditions

A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same – or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.

The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).

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

14.7.3.4.2 Procedure

a) The SS produces a static wanted signal and a static interfering signal at the same time. The amplitude of the wanted signal is set to 4 dB above the reference sensitivity level.

b) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated in step c) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.

However, frequencies in the range FR ±600 kHz are excluded.

NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.

c) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) below:-

i) The total frequency range formed by:-

R-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 19,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 19,5 MHz).

ER-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 21,0 MHz)

and Flo – (IF1 + IF2 + … + IFn + 21,0 MHz).

And the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.Measurements are made at 200 kHz intervals.

ii) The three frequencies IF1, IF1 + 200 kHz, IF1 – 200 kHz.

iii) The frequencies:

mFlo + IF1;

mFlo – IF1;

mFR;

where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.

The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.

Where:

Flo – local oscillator applied to first receiver mixer

IF1 … IFn – are the n intermediate frequencies

Flo, IF1, IF2 … IFn – shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.

d) The level of the unwanted signal is set according to table 14-28b.

Table 14-28b: Level of unwanted signals for R-GSM or ER-GSM 900 MS

R-GSM 900

ER-GSM 900

Small MS

Other MS

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

75

FR ±800 kHz to FR ±1,6 MHz

70

80

70

80

FR ±1,6 MHz to FR ±3 MHz

80

90

80

90

915 MHz to FR – 3 MHz

90

90

90

90

FR + 3 MHz to 980 MHz

90

90

90

90

1 785 MHz to FR – 3 MHz

FR + 3 MHz to 1 920 MHz

835 MHz to < 876 MHz

113

113

835 MHz to < 873 MHz

113

113

876 MHz to 880 MHz

106

113

873 MHz to 880 MHz

106

113

880 MHz to 915 MHz

106

108

880 MHz to 912 MHz

106

108

912 MHz to 915 MHz

99

101

> 980 MHz to 1 000 MHz

113

113

113

113

100 kHz to < 835 MHz

90

90

90

90

> 1 000 MHz to 12,75 GHz

90

90

90

90

NOTE: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.

e) 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.

The SS tests the RBER compliance for the bits of class II, by examining sequences of at least the minimum number of samples of consecutive bits of class II, where bits are taken only from those frames for which no bad frame indication was given. The number of error events is recorded.

If a failure is indicated it is noted and counted towards the allowed exemption totals.

In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also tested. This process is repeated until all channels constituting the group of failures is known.

14.7.3.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate values given in table 14-29b.

This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.

Table 14-29b: Limits for blocking

Channel

Type of measurement

Test limit error rate %

Minimum number of samples

TCH/FS Class II

RBER

2,439

8 200

The following exceptions are allowed:

R-GSM 900 or ER-GSM: A maximum of six failures in the frequency band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 failures in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.3.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf(  ) and the performance requirement is once again that that stated in the table above.

The number Error rate measured in this test shall not exceed the test limit error rate values given in table 14-29b.

No failures are allowed at this lower unwanted signal level.

14.7.4 Blocking and spurious response – control channels for MS supporting the R-GSM or ER-GSM 900 band

14.7.4.1 Definition

Blocking is a measure of the ability of the receiver to receive a modulated wanted input signal in the presence of an unwanted input signal, on frequencies other than those of the spurious responses or the adjacent channels, without exceeding a given degradation.

14.7.4.2 Conformance requirement

1. The blocking characteristics of the receiver are specified separately for in-band and out-of-band performance as identified in 3GPP TS 05.05 subclause 5.1.

The reference sensitivity performance as specified in table 1 of 3GPP TS 05.05 shall be met when the following signals are simultaneously input to the receiver:

– a useful signal at frequency f0, 3 dB above the reference sensitivity level as specified in 3GPP TS 05.05 subclause 6.2;

– a continuous, static sine wave signal at a level as in the table of 3GPP TS 05.05 subclause 5.1 and at a frequency (f) which is an integer multiple of 200 kHz.

With the following exceptions, called spurious response frequencies:-

a) R-GSM or ER-GSM: in band, for a maximum of six occurrences (which if grouped shall not exceed three contiguous occurrences per group);

b) out of band, for a maximum of 24 occurrences (which if below f0 and grouped shall not exceed three contiguous occurrences per group).

Where the above performance shall be met when the continuous sine wave signal (f) is set to a level of 70 dBµV (emf) (i.e. -43 dBm). 3GPP TS 05.05, subclause 5.1.

14.7.4.3 Test purpose

1. To verify that the in band blocking performance is met without exceeding the total number of allowed in band spurious responses. An allowance is made for the statistical significance of the test.

2. To verify that at selected out of band frequencies, the out of band blocking performance is met without exceeding the total number of allowed out of band spurious responses. An allowance is made for the statistical significance of the test.

NOTE: Not all of the possible out of band frequencies are tested as this results in excessive test time. However, the total number of out of band spurious responses, specified in 3GPP TS 05.05, are allowed to ensure a fair test of the MS.

14.7.4.4 Method of test

14.7.4.4.1 Initial conditions

A call is set up according to the generic call set up procedure, except the BCCH frequency list shall be empty, on a TCH with an arbitrary ARFCN in the range supported by the MS. The power control level is set to maximum power. The ARFCN of the BCCH shall be the same – or at an offset of +/- 2 channels, than that of the ARFCN for the TCH.

The SS transmits Standard Test Signal C1 on the traffic channel. (TCH frequency FR).

14.7.4.4.2 Procedure

a) The SS sends a Layer 3 message which does not require a Layer 3 response from the MS. Due to interfering signals, the MS may not be able to acknowledge the Layer 2 frame. Frame erasures are indicated by repeated L2 frames.

b) The SS is set to produce a TUhigh wanted signal and a static interfering signal at the same time. The SS sets the amplitude of the wanted signal to 4 dB above the reference sensitivity level.

c) The unwanted signal is a C.W. signal (Standard test signal IO) of frequency FB. It is applied in turn on the subset of frequencies calculated at step f) in the overall range 100 kHz to 12,75 GHz, where FB is an integer multiple of 200 kHz.

However, frequencies in the range FR ±600 kHz are excluded.

NOTE: Allowance must be made for possible spurious signals arising from the SS. These are particularly likely at sub harmonic frequencies nFB where n = 2, 3, 4, 5, etc.

d) The frequencies at which the test is performed (adjusted to an integer multiple of 200 kHz channels most closely approximating the absolute frequency of the calculated blocking signal frequency) are the combined frequencies from i), ii) and iii) which follow:

i) The total frequency range formed by:-

R-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 19,5 MHz)

and Flo – (IF1 + IF2 + … + IFn + 19,5 MHz)

– ER-GSM 900 the frequencies between Flo + (IF1 + IF2 + … + IFn + 21,0 MHz)

and Flo – (IF1 + IF2 + … + IFn + 21,0 MHz)

and

the frequencies +100 MHz and -100 MHz from the edge of the relevant receive band.

Measurement are made at 200 kHz intervals.

ii) The three frequencies IF1, IF1 + 200 kHz, IF1 – 200 kHz.

iii) The frequencies:

mFlo + IF1;

mFlo – IF1;

mFR;

where m is all positive integers greater than or equal to 2 such that either sum lies in the range 100 kHz to 12,75 GHz.

The frequencies in step ii) and iii) lying in the range of frequencies defined by step i) above need not be repeated.

Where:

Flo – local oscillator applied to first receiver mixer

IF1 … IFn – are the n intermediate frequencies

Flo, IF1, IF2 … IFn – shall be declared by the manufacturer in the PIXIT statement
3GPP TS 51.010-1 annex 3.

e) The level of the unwanted signal is set according to table 14-30b.

Table 14-30b: Level of unwanted signals

R-GSM 900

ER-GSM 900

Small MS

Other MS

Small MS

Other MS

FREQUENCY

LEVEL IN dBVemf(  )

LEVEL IN dBVemf(  )

FR ±600 kHz to FR ±800 kHz

70

75

70

75

FR ±800 kHz to FR ±1,6 MHz

70

80

70

80

FR ±1,6 MHz to FR ±3 MHz

80

90

80

90

915 MHz to FR – 3 MHz

90

90

90

90

FR + 3 MHz to 980 MHz

90

90

90

90

1 785 MHz to FR – 3 MHz

FR + 3 MHz to 1 920 MHz

835 MHz to < 876 MHz

113

113

835 MHz to < 873 MHz

113

113

876 MHz to 880 MHz

106

113

873 MHz to 880 MHz

106

113

880 MHz to 915 MHz

106

108

880 MHz to 912 MHz

106

108

912 MHz to 915 MHz

99

101

> 980 MHz to 1 000 MHz

113

113

113

113

100 kHz to < 835 MHz

90

90

90

90

> 1 000 MHz to 12,75 GHz

90

90

90

90

NOTE: These values differ from 3GPP TS 05.05 because of practical generator limits in the SS.

f) The SS determines the number of frame erasure events during at least the minimum number of samples. If a failure is indicated, it is noted and counted towards the allowed exemption total.

In the case of failures discovered at the predicted frequencies at steps f ii), iii) or iv) the test is repeated on the adjacent channels ±200 kHz away. If either of these two frequencies fail then the next channel 200 kHz beyond is also be tested. This process is repeated until all channels constituting the group of failures is known.

14.7.4.5 Test requirements

The error rate measured in this test shall not exceed the test limit error rate given in table 14-31b.

This shall apply under normal test voltage and ambient temperature, and with the interfering signal at any frequency in the range specified.

Table 14-31b: Limits for blocking

GSM 900

DCS 1 800

Channel

Type of measurement

Test limit error rate

Minimum No. of samples

Test limit error rate

Minimum No. of samples

FACCH/F

FER

8,961

6 696

4,368

13 736

The following exceptions are allowed:

R-GSM or ER-GSM: A maximum of six failures in the band 915 MHz to 980 MHz (which, if grouped, shall not exceed three 200 kHz channels per group).

A maximum of 24 in the combined bands 100 kHz to 915 MHz and 980 MHz to 12,75 GHz (which, if below FR and grouped, shall not exceed three 200 kHz channels per group).

If the number of failures do not exceed the maximum allowed figures stated above, the test of 14.7.4.4 is repeated at the frequencies at which the failures occurred. The level of the unwanted signal is set to 70 dBVemf(  ) and the performance requirement is once again that stated above.

The number of Error Events recorded in this test shall not exceed the test limit error rate values given above, when using the maximum number of samples.

No failures are allowed at this lower unwanted signal level.