7.7 Receiver intermodulation

37.145-13GPPActive Antenna System (AAS) Base Station (BS) conformance testingPart 1: conducted conformance testingRelease 17TS

7.7.1 Definition and applicability

Third and higher order mixing of the two interfering RF signals can produce an interfering signal in the band of the desired channel. Intermodulation response rejection is a measure of the capability of the receiver unit to receive a wanted signal on its assigned channel frequency in the presence of two interfering signals which have a specific frequency relationship to the wanted signal. The requirement applies per TAB connector.

7.7.2 Minimum requirement

The minimum requirement for MSR operation is defined in TS 37.105 [8], clause 7.7.2.

The single RAT UTRA FDD AAS BS of Wide Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 25.104 [9], clause 7.6.1.

The single RAT UTRA FDD AAS BS of Medium Range BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 25.104 [9], clause 7.6.1.

The single RAT UTRA FDD AAS BS of Local Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 25.104 [9], clause 7.6.1.

The single RAT UTRA TDD AAS BS of Wide Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 25.105 [10], clause 7.6.1.2.

The single RAT UTRA TDD AAS BS of Local Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 25.105 [10], clause 7.6.1.2.

The single RAT E-UTRA AAS BS of Wide Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 36.104 [11], clause 7.8.

The single RAT E-UTRA AAS BS of Medium Range BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 36.104 [11], clause 7.8.

The single RAT E-UTRA AAS BS of Local Area BS class shall fulfil minimum requirements for receiver intermodulation specified in TS 36.104 [11], clause 7.8.

7.7.3 Test purpose

The test purpose is to verify the ability of the receiver unit associated with the TAB connector under test to inhibit the generation of intermodulation products in its non-linear elements caused by the presence of two high-level interfering signals at frequencies with a specific relationship to the frequency of the wanted signal.

7.7.4 Method of test

7.7.4.1 Initial conditions

Test environment:

– Normal; see clause B.2.

RF channels to be tested for single carrier (SC):

– M; see clause 4.12.1

Base Station RF Bandwidth positions to be tested:

– For single-band TAB connector(s),: MRFBW if ATC4 is applicable; BRFBW and TRFBW for other ATC, see clause 4.12.1. For multi-band TAB connector(s): BRFBW_T’RFBW and B’RFBW_TRFBW, see clause 4.12.1.

7.7.4.2 Procedure

7.7.4.2.1 General procedure

The general procedure steps apply to the procedures for all the RATs.

The minimum requirement is applied to all TAB connectors, the procedure is repeated until all TAB connectors necessary to demonstrate conformance have been tested; see clause 7.1.

1) Connect TAB connector to measurement equipment as shown in annex D.2.6. All TAB connectors not under test shall be terminated.

2) Generate the wanted signal according to the applicable test configuration (see clause 5) using applicable reference measurement channel to the TAB connector under test as follows:

– For E-UTRA see clause A.1 in TS 36.141 [17].

– For UTRA FDD see clause A.2 in TS 25.141 [18].

– For UTRA TDD see clause A.2.1 in TS 25.142 [20].

– For NR, see clause [4.11]

3) Set the transmitter unit associated with the TAB connector under test to transmit with the carrier set-up and power allocation according to the applicable test configuration(s) (see clause 5).

7.7.4.2.2 MSR operation

7.7.4.4.2.1 Procedure for general and narrowband intermodulation

1) Adjust the signal generators to the type of interfering signals, levels and the frequency offsets as specified in table 7.7.5.1.1-1 and Table 7.7.5.1.1-2 for general intermodulation requirement, and Table 7.7.5.2.1-1 and Table 7.7.5.2.1-2 for narrowband intermodulation requirement.

2) Measure the performance of the wanted signal at the receiver unit associated with the TAB connector under test, as defined in clause 7.7.5.1.1 and 7.7.5.1.2, for the relevant carriers specified by the test configuration in clause 5.

In addition, for multi-band TAB connector(s), the following steps shall apply:

3) For multi-band TAB connectors and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.7.4.2.3 Single RAT UTRA FDD operation

1) Generate the wanted signal (reference signal) and adjust ATT1 to set the signal level to the TAB connector under test to the level specified in table 7.7.5.2-1. For a TAB connector supporting multi-carrier operation, generate the wanted signal according to the applicable test configuration (see clause 4.11) using applicable reference measurement channel to the TAB connector under test. Power settings are specified in table 7.7.5.2-1.

2) Adjust the signal generators to the type of interfering signals and the frequency offsets as specified in tables 7.7.5.2-1and 7.7.5.2-2. Note that the GMSK modulated interfering signal shall have an ACLR of at least 72 dB in order to eliminate the impact of interfering signal adjacent channel leakage power on the intermodulation characteristics measurement.

3) Adjust the ATT2 and ATT3 to obtain the specified level of interfering signal at the TAB connector.

4) Measure the BER of the wanted signal. For a TAB connector supporting multi-carrier operation the BER shall be measured for all relevant carriers specified by the test configuration.

In addition, for multi-band TAB connector(s), the following steps shall apply:

5) For multi-band TAB connectors and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.7.4.2.4 Single RAT UTRA TDD 1,28Mcps option operation

1) Start transmission from the BS tester to the TAB connector using the UL reference measurement channel (12,2 kbps) defined in clause A.2.1 of TS 25.142 [20]. For a TAB connector supporting multi-carrier operation, generate the wanted signal using the applicable test configuration specified in clause 4.11, and the UL reference measurement channel in clause A.2.1 of TS 25.142 [20] shall be used on all carriers for the TAB connector under test. The level of the UE simulator signal measured at the TAB connector shall be set to 6 dB above the reference sensitivity level specified in clause 7.2.2.

2) Set the first signal generator to produce a CW signal with a level measured at the TAB connector as specified in table 7.7.5.3-1.

3) Set the second signal generator to produce an interfering signal equivalent to a wideband CDMA signal with one code of chip frequency 1,28 MHz, filtered by an RRC transmit pulse-shaping filter with roll-off α = 0,22. The level of the signal measured at the TAB connector shall be set as specified in table 7.7.5.3-1.

4) Measure the BER of the wanted signal.

In addition, for multi-band TAB connector(s), the following steps shall apply:

5) For multi-band TAB connectors and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.7.4.2.5 Single RAT E-UTRA operation

1) Generate the wanted signal using the applicable test configuration specified in clause 5 and adjust the signal level to the TAB connector under test to the level specified in table 7.7.5.4-1.

2) Adjust the signal generators to the type of interfering signals, levels and the frequency offsets as specified in table 7.7.5.4-2 for intermodulation requirement and Table 7.7.5.4-3, Table 7.7.5.4-4 and Table 7.7.5.4-5 for narrowband intermodulation requirement.

3) Adjust the signal generators to obtain the specified level of interfering signal at the TAB connector.

4) Measure the throughput, for multi-carrier and/or CA operation the throughput shall be measured for relevant carriers specified by the test configuration specified in clause 5.

In addition, for multi-band TAB connector(s), the following steps shall apply:

5) For multi-band TAB connectors and single band tests, repeat the steps above per involved band where single band test configurations and test models shall apply with no carrier activated in the other band.

7.7.5 Test requirements

7.7.5.1 MSR operation

7.7.5.1.1 General intermodulation test requirement

Interfering signals shall be a CW signal and an E-UTRA or UTRA signal, as specified in annex A of TS 37.141 [16].

The requirement is applicable outside the Base Station RF Bandwidth or Maximum Radio Bandwidth. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges or Maximum Radio Bandwidth edges.

For multi-band TAB connector, the requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least twice as wide as the UTRA/E-UTRA interfering signal centre frequency offset from the RF bandwidth edge. The interfering signal offset is defined relative to the Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted signal at the assigned channel frequency and two interfering signals coupled to the TAB connector, using the parameters in table 7.7.5.1.1-1 and 7.7.5.1.1-2, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95 % of the maximum throughput of the reference measurement channel defined in clause 7.2.5.3.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in clause 7.2.5.1.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in clause 7.2.5.2.

– For any NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [36], clause 7.2.

Table 7.7.5.1.1-1: General intermodulation requirement

Base Station Type

Mean power of interfering signals (dBm)

Wanted Signal mean power (dBm)

Type of interfering signal

Wide Area BS

-48 +y (Note 6)

PREFSENS +x dB (Note 2, 5)

Medium Range BS

-44 +y (Note 6)

PREFSENS +x dB (Note 3, 5)

See Table 7.7.5.1.1-2

Local Area BS

-38 +y (Note 6)

PREFSENS +x dB (Note 4, 5)

NOTE 1: PREFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2.

NOTE 2: For WA BS supporting UTRA, "x" is equal to 6

NOTE 3: For MR BS supporting UTRA, "x" is equal to 6 in case of UTRA wanted signals, 9 in case of NR or E-UTRA wanted signals.

NOTE 4: For LA BS supporting UTRA, "x" is equal to 12 in case of NR or E-UTRA wanted signals, 6 in case of UTRA wanted signals.

NOTE 5: For a BS not supporting UTRA, x is equal to 6 for all BS classes if NR is supported, otherwise x is equal to 6 for WA BS or 9 for MR or 12 for LA BS if NR is not supported.

NOTE 6: For a BS supporting NR and not supporting UTRA; "y" is equal to -4 for the WA BS class, -3 for the MR BS class and -6 for the LA BS class. For all other cases, “y” is equal to zero for all BS classes.

Table 7.7.5.1.1-2: Interfering signals for intermodulation requirement

RAT of the carrier adjacent to the upper/lower Base Station RF Bandwidth edge

Interfering signal centre frequency offset from the Base Station RF Bandwidth edge [MHz]

Type of interfering signal

E-UTRA 1.4 MHz

±2.0 (BC1 and BC3) /
±2.1 (BC2)

CW

±4.9

1.4MHz E-UTRA signal

E-UTRA 3 MHz

±4.4 (BC1 and BC3) /
±4.5 (BC2)

CW

±10.5

3MHz E-UTRA signal

UTRA FDD and
E-UTRA 5 MHz

±7.5

CW

±17.5

5MHz E-UTRA signal

E-UTRA 10 MHz

±7.375

CW

±17.5

5MHz E-UTRA signal

E-UTRA 15 MHz

±7.25

CW

±17.5

5MHz E-UTRA signal

E-UTRA 20 MHz

±7.125

CW

±17.5

5MHz E-UTRA signal

1.28 Mcps UTRA TDD

±2.3 (BC3)

CW

±5.6 (BC3)

1.28Mcps UTRA TDD signal

NR 5 MHz

±7.5

CW

±17.5

5MHz E-UTRA signal

NR 10 MHz

±7.465

CW

±17.5

5MHz E-UTRA signal

NR 15 MHz

±7.43

CW

±17.5

5MHz E-UTRA signal

NR 20 MHz

±7.395

CW

±17.5

5MHz E-UTRA signal

NR 25 MHz

±7.465

CW

±25

20MHz E-UTRA signal

NR 30 MHz

±7.43

CW

±25

20MHz E-UTRA signal

NR 35 MHz

±7.44

CW

±25

20MHz E-UTRA signal

NR 40 MHz

±7.45

CW

±25

20MHz E-UTRA signal

NR 45 MHz

±7.37

CW

±25

20MHz E-UTRA signal

NR 50 MHz

±7.35

CW

±25

20MHz E-UTRA signal

NR 60 MHz

±7.49

CW

±25

20MHz E-UTRA signal

NR 70 MHz

±7.42

CW

±25

20MHz E-UTRA signal

NR 80 MHz

±7.44

CW

±25

20MHz E-UTRA signal

NR 90 MHz

±7.46

CW

±25

20MHz E-UTRA signal

NR 100 MHz

±7.48

CW

±25

20MHz E-UTRA signal

7.7.5.1.2 General narrowband intermodulation test requirement

Interfering signals shall be a CW signal and an E-UTRA 1RB signal, as specified in annex A of TS 37.141 [16].

The requirement is applicable outside the Base Station RF Bandwidth or maximum Radio Bandwidth. The interfering signal offset is defined relative to the Base Station RF bandwidth edges or maximum Radio Bandwidth edges.

For a TAB connector operating in non-contiguous spectrum within each supported operating band, the requirement applies in addition inside any sub-block gap in case the sub-block gap is at least as wide as the channel bandwidth of the E-UTRA interfering signal in table 7.7.5.1.2-2. The interfering signal offset is defined relative to the sub-block edges inside the gap.

For a multi-band TAB connector, the requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least as wide as the E-UTRA interfering signal in table 7.7.5.1.2-2. The interfering signal offset is defined relative to the RF bandwidth edges inside the Inter RF Bandwidth gap.

For the wanted signal at the assigned channel frequency and two interfering signals coupled to the Base Station antenna input, using the parameters in table 7.7.5.2-1 and 7.7.5.2-2, the following requirements shall be met:

– For any measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in clause 7.2.5.3.

– For any NR carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel defined in TS 38.104 [36], clause 7.2.5.4.

– For any measured UTRA FDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in clause 7.2.5.1.

– For any measured UTRA TDD carrier, the BER shall not exceed 0.001 for the reference measurement channel defined in clause 7.2.5.2.

Table 7.7.5.1.2-1: General narrowband intermodulation requirement

Base Station Type

Mean power of interfering signals (dBm)

Wanted Signal mean power (dBm)

Type of interfering signal

Wide Area BS

-52

Medium Range BS

-47

PREFSENS +x dB (Note)

See Table 7.7.5.1.2-2

Local Area BS

-44

NOTE: PREFSENS depends on the RAT, the BS class and on the channel bandwidth, see clause 7.2 in TS 37.104 [12].
"x" is equal to 6 in case of NR, E-UTRA or UTRA wanted signals.

Table 7.7.5.1.2-2: Interfering signals for narrowband intermodulation requirement

RAT of the carrier adjacent to the upper/lower Base Station RF Bandwidth edge or sub-block edge

CW or 1RB interfering signal centre frequency offset from the Base Station RF Bandwidth edge or sub-block edge inside a gap [kHz]

Type of interfering signal

E-UTRA 1.4 MHz

±260 (BC1 and BC3) /
±270 (BC2)

CW

±970 (BC1 and BC3) /
±790 (BC2)

1.4 MHz E-UTRA signal, 1 RB (NOTE 1)

E-UTRA or E-UTRA 3 MHz

±260 (BC1 and BC3) /
±270 (BC2)

CW

±960 (BC1 and BC3) /
±780 (BC2)

3.0 MHz E-UTRA signal, 1 RB (NOTE 1)

E-UTRA 5 MHz

±360

CW

±1060

5 MHz E-UTRA signal, 1 RB (NOTE 1)

E-UTRA 10 MHz

±325

CW

(NOTE 2)

±1240

5 MHz E-UTRA signal, 1 RB (NOTE 1)

E-UTRA 15 MHz

±380

CW

(NOTE 2)

±1600

5MHz E-UTRA signal, 1 RB (NOTE 1)

E-UTRA 20 MHz

±345

CW

(NOTE 2)

±1780

5MHz E-UTRA signal, 1 RB (NOTE 1)

UTRA FDD

±345 (BC1 and BC2)

CW

±1780 (BC1 and BC2)

5MHz E-UTRA signal, 1 RB (NOTE 1)

1.28Mcps UTRA TDD

±190 (BC3)

CW

±970 (BC3)

1.4 MHz E-UTRA signal, 1 RB (NOTE 1)

NR 5 MHz

±360

CW

±1420

E-UTRA signal, 1 RB (NOTE 1)

NR 10 MHz

±370

CW

±1960

E-UTRA signal, 1 RB (NOTE 1)

NR 15 MHz

±380

CW

(NOTE 2)

±1960

E-UTRA signal, 1 RB (NOTE 1)

NR 20 MHz

±390

CW

(NOTE 2)

±2320

E-UTRA signal, 1 RB (NOTE 1)

NR 25 MHz

±325

CW

(NOTE 2)

±2350

E-UTRA signal, 1 RB (NOTE 1)

NR 30 MHz

±335

CW

(NOTE 2)

±2350

E-UTRA signal, 1 RB (NOTE 1)

NR 35 MHz

±345

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 40 MHz

±355

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 45 MHz

±365

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 50 MHz

±375

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 60 MHz

±395

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 70 MHz

±415

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 80 MHz

±435

CW

(NOTE 2)

±2710

E-UTRA signal, 1 RB (NOTE 1)

NR 90 MHz

±365

CW

(NOTE 2)

±2530

E-UTRA signal, 1 RB (NOTE 1)

NR 100 MHz

±385

CW

(NOTE 2)

±2530

E-UTRA signal, 1 RB (NOTE 1)

NOTE 1: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the Base Station RF Bandwidth edge.

NOTE 2: This requirement shall apply only for an E-UTRA FRC A1-3 or NR G-FRC mapped to the frequency range at the channel edge adjacent to the interfering signals.

7.7.5.2 Single RAT UTRA FDD operation

For each measured carrier, the BER shall not exceed 0,001 for the parameters specified in tables 7.7.5.2-1 and 7.7.5.2-2.

The intermodulation performance shall be met when the following signals are applied to the receiver.

For a TAB connector operating in non-contiguous spectrum within any operating band, the narrowband intermodulation requirement applies in addition inside any sub-block gap, in case the sub-block gap size is at least 6.8MHz. The CW interfering signal offset is defined relative to the lower/upper sub-block edge inside the sub-block gap and is equal to -1 MHz/+1 MHz, respectively. The GMSK modulated interfering signal offset is defined relative to the lower/upper sub-block edge inside the sub-block gap and is equal to -3.4 MHz/+3.4 MHz, respectively. The requirement applies separately for both sub-blocks.

For a multi-band TAB connector, the narrowband intermodulation requirement applies in addition inside any Inter RF Bandwidth gap, in case the Inter RF Bandwidth gap size is at least 6.8MHz. The CW interfering signal offset is defined relative to lower/upper Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap and is equal to -1 MHz/+1 MHz, respectively. The GMSK modulated interfering signal offset is defined relative to lower/upper Base Station RF Bandwidth edges inside the Inter RF Bandwidth gap and is equal to -3.4 MHz/+3.4 MHz, respectively.

Table 7.7.5.2-1: Intermodulation performance requirement

Operating

Type of Signal

Offset

Signal mean power

Band

Wide Area BS

Medium Range BS

Local Area

Wanted signal

-115 dBm

‑105 dBm

-101 dBm

All bands

CW signal

±10 MHz

-48 dBm

-44 dBm

-38 dBm

WCDMA signal (Note)

±20 MHz

-48 dBm

-44 dBm

-38 dBm

NOTE: The characteristics of the W-CDMA interfering signal are specified in annex I of TS 25.141 [18]

Table 7.7.5.2.-2: Narrowband intermodulation performance requirement

Operating

Type of Signal

Offset

Signal mean power

band

Wide Area BS

Medium Range BS

Local Area

II, III, IV, V, VIII, X, XII, XIII, XIV, XXV, XXVI

Wanted signal

-115 dBm

‑105 dBm

-101 dBm

CW signal

±3.5 MHz

– 47 dBm

– 43 dBm

-37 dBm

GMSK modulated (Note)

±5.9 MHz

– 47 dBm

– 43 dBm

-37 dBm

NOTE: GMSK as defined in TS 45.004 [22].

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined in clause 4.1.2 and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in annex C.

7.7.5.3 Single RAT UTRA TDD 1,28Mcps option operation

The BER measured shall not exceed 0,001.

The static reference performance as specified in clause 7.2.5.2 should be met when the following signals are coupled to the TAB connector.

– A wanted signal at the assigned channel frequency, with mean power 6 dB above the static reference level.

– Two interfering signals with the parameters specified in table 7.7.5.3-1.

The blocking requirement is always applicable outside the Base Station RF bandwidth or maximum Radio Bandwidth edges. The interfering signal offset is defined relative to the lower (upper) or maximum Radio Bandwidth edges.

For a multi-band TAB connector, the requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least 11.2MHz. The CW interfering signal offset is defined relative to lower/upper Base Station RF bandwidth edges inside the Inter RF Bandwidth gap and is equal to -2.4 MHz/+2.4 MHz, respectively. The modulated interfering signal offset is defined relative to lower/upper Base Station RF bandwidth edges inside the Inter RF Bandwidth gap and is equal to -5.6MHz/+5.6MHz, respectively.

Table 7.7.5.3-1: Parameters of the interfering signals
for intermodulation characteristics testing for 1,28 Mcps TDD

Interfering Signal mean power

Offset

Type of Interfering Signal

Wide Area BS

Local Area BS

– 48 dBm

– 38 dBm

±3,2 MHz

CW signal

– 48 dBm

– 38 dBm

±6,4 MHz

1,28 Mcps TDD signal with one code

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined in clause 4.1.2 and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in annex C.

7.7.5.4 Single RAT E-UTRA operation

For each measured E-UTRA carrier, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted signal at the assigned channel frequency and two interfering signals with the conditions specified in tables 7.7.5.4-1 and 7.7.5.4-2 for intermodulation performance and in tables 7.7.5.4-3, 7.7.5.4-4 and 7.7.5.4-5 for narrowband intermodulation performance. The reference measurement channel for the wanted signal is specified in tables 7.2.5.3-1, 7.2.5.3-2 and 7.2.5.3-3 for each channel bandwidth and further specified in annex A of TS 36.141 [17].

The receiver intermodulation requirement is always applicable outside the Base Station RF bandwidth or maximum Radio Bandwidth edges. The interfering signal offset is defined relative to the lower (upper) or maximum Radio Bandwidth edges.

For a TAB connector operating in non-contiguous spectrum within any operating band, the narrowband intermodulation requirement applies in addition inside any sub-block gap in case the sub-block gap is at least as wide as the channel bandwidth of the E-UTRA interfering signal in table 7.7.5.4-3. The interfering signal offset is defined relative to the sub-block edges inside the sub-block gap. The requirement applies separately for both sub-blocks.

For a multi-band TAB connector, the intermodulation requirement applies in addition inside any Inter RF Bandwidth gap, in case the gap size is at least twice as wide as the E-UTRA interfering signal centre frequency offset from the Base Station RF bandwidth edge.

For a multi-band TAB connector, the narrowband intermodulation requirement applies in addition inside any Inter RF Bandwidth gap in case the gap size is at least as wide as the E-UTRA interfering signal in tables 7.7.5.4-3, 7.7.5.4-4 and 7.7.5.4-5. The interfering signal offset is defined relative to the Base Station RF bandwidth edges inside the Inter RF Bandwidth gap.

Table 7.7.5.4-1: Intermodulation performance requirement

BS type

Wanted signal mean power (dBm)

(Note)

Interfering signal mean power (dBm)

Type of interfering signal

Wide Area BS

PREFSENS + 6 dB

-52

Medium Range BS

PREFSENS + 6 dB

-47

See Table 7.7.5.4-2

Local Area BS

PREFSENS + 6 dB

-44

NOTE: PREFSENS depends on the channel bandwidth as specified in TS 36.104 [11], clause 7.2.1. For E-UTRA channel bandwidths 10, 15 and 20 MHz this requirement shall apply only for a FRC A1-3 mapped to the frequency range at the channel edge adjacent to the interfering signals.

Table 7.7.5.4-2: Interfering signal for Intermodulation performance requirement

E-UTRA

channel bandwidth of the lowest (highest) carrier received (MHz)

Interfering signal centre frequency offset from the lower (upper) edge (MHz)

Type of interfering signal

1.4

±2.1

CW

±4.9

1.4 MHz E-UTRA signal

3

±4.5

CW

±10.5

3 MHz E-UTRA signal

5

±7.5

CW

±17.5

5 MHz E-UTRA signal

10

±7. 375

CW

±17.5

5 MHz E-UTRA signal

15

±7.25

CW

±17.5

5 MHz E-UTRA signal

20

±7.125

CW

±17.5

5 MHz E-UTRA signal

Table 7.7.5.4-3: Narrowband intermodulation performance requirement for Wide Area BS

E-UTRA

channel bandwidth of the lowest (highest) carrier received (MHz)

Wanted signal mean power (dBm)

(Note 1)

Interfering signal mean power (dBm)

Interfering RB centre frequency offset from the lower (upper) edge or sub-block edge inside a sub-block gap (kHz)

Type of interfering signal

1.4

PREFSENS + 6 dB

-52

±270

CW

-52

±790

1.4 MHz E-UTRA signal, 1 RB (Note 2)

3

PREFSENS + 6

-52

±270

CW

-52

±780

3.0 MHz E-UTRA signal, 1 RB (Note 2)

5

PREFSENS + 6 dB

-52

±360

CW

-52

±1060

5 MHz E-UTRA signal, 1 RB (Note 2)

10

PREFSENS + 6 dB

(Note 3)

-52

±325

CW

-52

±1240

5 MHz E-UTRA signal, 1 RB (Note 2)

15

PREFSENS + 6 dB

(Note 3)

-52

±380

CW

-52

±1600

5 MHz E-UTRA signal, 1 RB (Note 2)

20

PREFSENS + 6 dB

(Note 3)

-52

±345

CW

-52

±1780

5 MHz E-UTRA signal, 1 RB (Note 2)

NOTE 1: PREFSENS is related to the channel bandwidth as specified in TS 36.104 [11], clause 7.2.1.

NOTE 2: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the lower (upper) edge.

NOTE 3: This requirement shall apply only for a FRC A1-3 mapped to the frequency range at the channel edge adjacent to the interfering signals

Table 7.7.5.4-4: Narrowband intermodulation performance requirement for Local Area BS

E-UTRA

channel bandwidth of the lowest (highest) carrier received (MHz)

Wanted signal mean power (dBm)

(Note 1)

Interfering signal mean power (dBm)

Interfering RB centre frequency offset from the lower (upper) edge or sub-block edge inside a sub-block

(kHz)

Type of interfering signal

1.4

PREFSENS + 6 dB

-44

±270

CW

-44

±790

1.4 MHz E-UTRA signal, 1 RB (Note 2)

3

PREFSENS + 6

-44

±275

CW

-44

±790

3.0 MHz E-UTRA signal, 1 RB (Note 2)

5

PREFSENS + 6 dB

-44

±360

CW

-44

±1060

5 MHz E-UTRA signal, 1 RB (Note 2)

10

PREFSENS + 6 dB

(Note 3)

-44

±415

CW

-44

±1420

5 MHz E-UTRA signal, 1 RB (Note 2)

15

PREFSENS + 6 dB

(Note 3)

-44

±380

CW

-44

±1600

5 MHz E-UTRA signal, 1 RB (Note 2)

20

PREFSENS + 6 dB

(Note 3)

-44

±345

CW

-44

±1780

5 MHz E-UTRA signal, 1 RB (Note 2)

NOTE 1: PREFSENS is related to the channel bandwidth as specified in TS 36.104 [11], clause 7.2.1.

NOTE 2: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the lower (upper) edge.

NOTE 3: This requirement shall apply only for a FRC A1-3 mapped to the frequency range at the channel edge adjacent to the interfering signals.

Table 7.7.5.4-5: Narrowband intermodulation performance requirement for Medium Range BS

E-UTRA

channel bandwidth of the lowest (highest) carrier received (MHz)

Wanted signal mean power (dBm)

(Note 1)

Interfering signal mean power (dBm)

Interfering RB centre frequency offset to the lower (higher) edge or sub-block edge inside a sub-block gap (kHz)

Type of interfering signal

1.4

PREFSENS + 6 dB

−47

±270

CW

−47

±790

1.4 MHz E-UTRA signal, 1 RB (Note 2)

3

PREFSENS + 6

−47

±270

CW

−47

±780

3.0 MHz E-UTRA signal, 1 RB (Note 2)

5

PREFSENS + 6 dB

−47

±360

CW

−47

±1060

5 MHz E-UTRA signal, 1 RB (Note 2)

10

PREFSENS + 6 dB

(Note 3)

−47

±325

CW

−47

±1240

5 MHz E-UTRA signal, 1 RB (Note 2)

15

PREFSENS + 6 dB

(Note 3)

−47

±380

CW

−47

±1600

5 MHz E-UTRA signal, 1 RB (Note 2)

20

PREFSENS + 6 dB

(Note 3)

−47

±345

CW

−47

±1780

5 MHz E-UTRA signal, 1 RB (Note 2)

NOTE 1: PREFSENS is related to the channel bandwidth as specified in TS 36.104 [11], clause 7.2.1.

NOTE 2: Interfering signal consisting of one resource block positioned at the stated offset, the channel bandwidth of the interfering signal is located adjacently to the lower (higher) edge.

NOTE 3: This requirement shall apply only for a FRC A1-3 mapped to the frequency range at the channel edge adjacent to the interfering signals

NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined in clause 4.1.2 and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in annex C.