6.7 Transmit intermodulation

25.1013GPPRelease 17TSUser Equipment (UE) radio transmission and reception (FDD)

The transmit intermodulation performance is a measure of the capability of the transmitter to inhibit the generation of signals in its non linear elements caused by presence of the wanted signal and an interfering signal reaching the transmitter via the antenna.

6.7.1 Minimum requirement

User Equipment(s) transmitting in close vicinity of each other can produce intermodulation products, which can fall into the UE, or Node B receive band as an unwanted interfering signal. The UE intermodulation attenuation is defined by the ratio of the RRC filtered mean power of the wanted signal to the RRC filtered mean power of the intermodulation product when an interfering CW signal is added at a level below the wanted signal.

The requirement of transmitting intermodulation for a carrier spacing of 5 MHz is prescribed in Table 6.14.

Table 6.14: Transmit Intermodulation

Interference Signal Frequency Offset			5MHz		10MHz
Interference CW Signal Level			-40dBc
Intermodulation Product			-31dBc		-41dBc

6.7.1A Additional requirement for DC-HSUPA

The UE intermodulation attenuation is defined by the ratio of the sum of the RRC filtered mean powers of the wanted signal on the assigned carriers to the sum of the RRC filtered mean powers of the intermodulation product on two adjacent carriers when an interfering CW signal is added at a level below the wanted signal.

The requirement of transmitting intermodulation for a carrier spacing of 5 MHz is prescribed in Table 6.14A.

Table 6.14A: Transmit Intermodulation requirement for DC-HSUPA

Interference Signal Frequency Offset			10MHz		20MHz
Interference CW Signal Level			-40dBc
Intermodulation Product			-31dBc		-41dBc

6.7.1B Additional requirement for UL OLTD

For UE with two active transmit antenna connectors in UL OLTD operation, the requirements specified in sub-clause 6.7.1 apply at each transmit antenna connector.

6.7.1C Additional requirement for UL CLTD

For UE with two active transmit antenna connectors in UL CLTD activation state 1, the requirements specified in sub-clause 6.7.1 apply at each transmit antenna connector.

For UE configured in UL CLTD activation state 2 or activation state 3, the requirements specified in sub-clause 6.7.1 apply at the active transmit antenna connector.

6.7.1D Additional requirement for UL MIMO

For UE with two active transmit antenna connectors in UL MIMO operation, the requirements specified in sub-clause 6.7.1 apply at each transmit antenna connector.

6.7.1E Additional requirement for DB-DC-HSUPA

For UE supporting DB-DC-HSUPA operation, the requirements specified in sub-clause 6.7.1 apply per carrier.