7.7 Receiver spurious emissions

36.1043GPPBase Station (BS) radio transmission and receptionEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TS

The spurious emissions power is the power of emissions generated or amplified in a receiver that appear at the BS receiver antenna connector. The requirements apply to all BS with separate RX and TX antenna ports. In this case for FDD BS the test shall be performed when both TX and RX are on, with the TX port terminated.

For TDD BS with common RX and TX antenna port the requirement applies during the Transmitter OFF period. For FDD BS with common RX and TX antenna port the transmitter spurious emission as specified in clause 6.6.4 is valid.

For BS capable of multi-band operation where multiple bands are mapped on separate antenna connectors, the single-band requirements apply and the excluded frequency range is only applicable for the operating band supported on each antenna connector.

The requirements shall apply to BS that supports E-UTRA or E-UTRA with NB-IoT in-band/guard band operation or NB-IoT standalone operation.

7.7.1 Minimum requirement

The power of any spurious emission shall not exceed the levels in Table 7.7.1-1:

Table 7.7.1-1: General spurious emission minimum requirement

Frequency range	Maximum level	Measurement Bandwidth	Note
30MHz ‑ 1 GHz	-57 dBm	100 kHz
1 GHz – 12.75 GHz	-47 dBm	1 MHz
12.75 GHz ‑ 5th harmonic of the upper frequency edge of the UL operating band in GHz	-47 dBm	1 MHz	Applies only for Bands 22, 42, 43, 48 or 49.
12.75 GHz ‑ 26 GHz	-47 dBm	1 MHz	Applies only for Band 46
NOTE: The frequency range between 2.5 * BWChannel below the first carrier frequency and 2.5 * BWChannel above the last carrier frequency transmitted by the BS, where BWChannel is the channel bandwidth according to Table 5.6‑1, may be excluded from the requirement. However, frequencies that are more than 10 MHz below the lowest frequency of any of the BS supported downlink operating band or more than 10 MHz above the highest frequency of any of the BS supported downlink operating band shall not be excluded from the requirement. For BS capable of multiband operation, the exclusion applies for all supported operating bands. For BS capable of multi-band operation where multiple bands are mapped on separate antenna connectors, the single-band requirements apply and the excluded frequency range is only applicable for the operating band supported on each antenna connector.

In addition to the requirements in Table 7.7.1-1, the power of any spurious emission shall not exceed the levels specified for Protection of the E-UTRA FDD BS receiver of own or different BS in clause 6.6.4.2 and for Co-existence with other systems in the same geographical area in clause 6.6.4.3. In addition, the co-existence requirements for co-located base stations specified in clause 6.6.4.4 may also be applied.