7.5 Adjacent channel selectivity

38.101-13GPPNRPart 1: Range 1 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception

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

Adjacent channel selectivity (ACS) is a measure of a receiver’s ability to receive an NR signal at its assigned channel frequency in the presence of an adjacent channel signal at a given frequency offset from the centre frequency of the assigned channel. ACS is the ratio of the receive filter attenuation on the assigned channel frequency to the receive filter attenuation on the adjacent channel(s).

The UE shall fulfil the minimum requirements specified in Table 7.5-1 for NR bands with FDL_high < 2700 MHz and FUL_high < 2700 MHz and the minimum requirements specified in Table 7.5-2 for NR bands with FDL_low ≥ 3300 MHz and FUL_low ≥ 3300 MHz. These requirements apply for all values of an adjacent channel interferer up to -25 dBm and for any SCS specified for the channel bandwidth of the wanted signal. However, it is not possible to directly measure the ACS; instead the lower and upper range of test parameters are chosen as in Table 7.5-3 and Table 7.5-4 for verification of the requirements specified in Table 7.5-1, and as in Table 7.5-5 and Table 7.5-6 for verification of the requirements specified in Table 7.5-2. For these test parameters, the throughput shall be ≥ 95 % of the maximum throughput of the reference measurement channels as specified in Annexes A.2.2, A.3.2, and A.3.3 (with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1). For operating bands with an unpaired DL part (as noted in Table 5.2-1), the requirements only apply for carriers assigned in the paired part.

Table 7.5-1: ACS for NR bands with F_{DL_high}< 2700 MHz and F_{UL_high}< 2700 MHz

RX parameter	Units	Channel bandwidth (MHz)
		5, 10	15	20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
ACS	dB	33	30	27 – 10log₁₀(BW_Channel /20)
NOTE1: ACS value is rounded to the next higher 0.5dB value

Table 7.5-2: ACS for NR bands with F_{DL_low}≥ 3300 MHz and F_{UL_low}≥ 3300 MHz

RX parameter	Units	Channel bandwidth (MHz)
RX parameter	Units	10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
ACS	dB	33

Table 7.5-3: Test parameters for NR bands with F_{DL_high}< 2700 MHz and F_{UL_high}< 2700 MHz, case 1

RX parameter	Units	Channel bandwidth (MHz)
		5, 10	15	20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
Power in transmission bandwidth configuration	dBm	REFSENS + 14 dB
P_interferer⁴	dBm	REFSENS + 45.5 dB	REFSENS + 42.5 dB	REFSENS + 39.5 – 10log₁₀(BW_Channel /20)
BW_interferer	MHz	5
F_interferer (offset)	MHz	BW_Channel /2 + 2.5 / -(BW_Channel /2 + 2.5)
NOTE 1: The transmitter shall be set to 4 dB below P_{CMAX_L,f,c}at the minimum UL configuration specified in Table 7.3.2-3 with P_{CMAX_L,f,c}defined in clause 6.2.4. NOTE 2: The absolute value of the interferer offset F_interferer (offset) shall be further adjusted to MHz with SCS the sub-carrier spacing of the wanted signal in MHz. The interferer is an NR signal with 15 kHz SCS. NOTE 3: The interferer consists of the NR interferer RMC specified in Annexes A.3.2.2 and A.3.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1. NOTE 4: 10log₁₀(x) is rounded to the next higher 0.5dB value.

Table 7.5-4: Test parameters for NR bands with F_{DL_high}< 2700 MHz and F_{UL_high}< 2700 MHz, case 2

RX parameter	Units	Channel bandwidth (MHz)
		5, 10	15	20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
Power in transmission bandwidth configuration⁴	dBm	-56.5	-53.5	-50.5 + 10log₁₀(BW_Channel /20)
P_interferer	dBm	-25
BW_interferer	MHz	5
F_interferer (offset)	MHz	BW_Channel /2 + 2.5 / -(BW_Channel /2 + 2.5)
NOTE 1: The transmitter shall be set to 24 dB below P_{CMAX_L,f,c}at the minimum UL configuration specified in Table 7.3.2-3 with P_{CMAX_L,f,c}defined in clause 6.2.4. NOTE 2: The absolute value of the interferer offset F_interferer (offset) shall be further adjusted to MHz with SCS the sub-carrier spacing of the wanted signal in MHz. The interferer is an NR signal with 15 kHz SCS. NOTE 3: The interferer consists of the RMC specified in Annexes A.3.2.2 and A.3.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1 NOTE 4: 10log₁₀(x) is rounded to the next higher 0.5dB value.

Table 7.5-5: Test parameters for NR bands with F_{DL_low}≥ 3300 MHz and F_{UL_low}≥ 3300 MHz, case 1

RX parameter	Units	Channel bandwidth (MHz)
		10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
Power in transmission bandwidth configuration	dBm	REFSENS + 14 dB
P_interferer	dBm	REFSENS + 45.5 dB
BW_interferer	MHz	BW_Channel
F_interferer (offset)	MHz	BW_Channel / -BW_Channel
NOTE 1: The transmitter shall be set to 4 dB below P_{CMAX_L,f,c}at the minimum UL configuration specified in Table 7.3.2-3 with P_{CMAX_L,f,c}defined in clause 6.2.4. NOTE 2: The absolute value of the interferer offset F_interferer (offset) shall be further adjusted to MHz with SCS the sub-carrier spacing of the wanted signal in MHz. The interferer is an NR signal with an SCS equal to that of the wanted signal. NOTE 3: The interferer consists of the RMC specified in Annexes A.3.2.2 and A.3.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1.

Table 7.5-6: Test parameters for NR bands with F_{DL_low}≥ 3300 MHz and F_{UL_low}≥ 3300 MHz, case 2

RX parameter	Units	Channel bandwidth (MHz)
		10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
Power in transmission bandwidth configuration	dBm	-56.5
P_interferer	dBm	-25
BW_interferer	MHz	BW_Channel
F_interferer (offset)	MHz	BW_Channel / -BW_Channel
NOTE 1: The transmitter shall be set to 24 dB below P_{CMAX_L,f,c}at the minimum UL configuration specified in Table 7.3.2-3 with P_{CMAX_L,f,c}defined in clause 6.2.4. NOTE 2: The absolute value of the interferer offset F_interferer (offset) shall be further adjusted to MHz with SCS the sub-carrier spacing of the wanted signal in MHz. The interferer is an NR signal with an SCS equal to that of the wanted signal. NOTE 3: The interferer consists of the RMC specified in Annexes A.3.2.2 and A.3.3.2 with one sided dynamic OCNG Pattern OP.1 FDD/TDD for the DL-signal as described in Annex A.5.1.1/A.5.2.1.