6.6.3 Occupied bandwidth

37.1413GPPMulti-Standard Radio (MSR) Base Station (BS) conformance testingNR, E-UTRA, UTRA and GSM/EDGERelease 17TS

6.6.3.1 Definition and applicability

The occupied bandwidth is the width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage /2 of the total mean transmitted power. See also ITU-R Recommendation SM.328 [15].

The value of /2 shall be taken as 0.5%.

6.6.3.2 Minimum requirements

The minimum requirement is in TS 37.104 [2] clause 6.6.3.

6.6.3.3 Test purpose

The occupied bandwidth, defined in the Radio Regulations of the International Telecommunication Union ITU, is a useful concept for specifying the spectral properties of a given emission in the simplest possible manner; see also ITU-R Recommendation SM.328 [15]. The test purpose is to verify that the emission of the BS does not occupy an excessive bandwidth for the service to be provided and is, therefore, not likely to create interference to other users of the spectrum beyond undue limits.

6.6.3.4 Method of test

For this requirement Tables 5.1-1 and 5.2-1 refer to single-RAT specifications; see clause 5. The following shall apply:

– For references to TS 25.141 [10], the method of test is specified in TS 25.141 [10], clause 6.5.1.4.

– For references to TS 25.142 [12], the method of test is specified in TS 25.142 [12], clause 6.6.1.4.

– For references to TS 36.141 [9], the method of test is specified in TS 36.141 [9], clause 6.6.1.4.

– For references to TS 38.141-1 [26], the method of test is specified in TS 38.141-1 [26], clause 6.6.2.4.

In addition, for a multi-band capable BS, the following steps hall apply:

– For multi-band capable BS and single band tests, repeat the tests per involved band where single carrier test models shall apply, with no carrier activated in the other band. In addition, when contiguous CA is supported, single band test configurations and test models shall apply with no carrier activated in the other band.

– For multi-band capable BS with separate antenna connector, the antenna connector not being under test shall be terminated.

6.6.3.5 Test requirement

The occupied bandwidth of a single carrier shall be less than the values listed in Table 6.6.3.5-1. For E-UTRA intra-band contiguous carrier aggregation, test requirement in clause 6.6.1.5 of TS 36.141 [9] applies for the E-UTRA component carriers that are aggregated. For NR intra-band contiguous carrier aggregation, test requirement in clause 6.6.2.5 of TS 38.141-1 [26] applies for the NR component carriers that are aggregated.

Table 6.6.3.5-1: Occupied bandwidth

RAT	Occupied bandwidth limit
E-UTRA and NR	BWChannel
UTRA FDD	5 MHz
1.28 Mcps UTRA TDD	1.6 MHz
NB-IoT	200 kHz