## 5.6 Channel bandwidth

36.1413GPPBase Station (BS) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA)Release 17TS

For E-UTRA, requirements in present document are specified for the channel bandwidths listed in Table 5.6-1.

Table 5.6-1: Transmission bandwidth configuration NRB in E-UTRA channel bandwidths

 Channel bandwidth BWChannel [MHz] 1.4 3 5 10 15 20 Transmission bandwidth configuration NRB 6 15 25 50 75 100

For E-UTRA, figure 5.6-1 shows the relation between the Channel bandwidth (BWChannel) and the Transmission bandwidth configuration (NRB). The channel edges are defined as the lowest and highest frequencies of the carrier separated by the channel bandwidth, i.e. at FC +/- BWChannel /2.

Figure 5.6-1: Definition of Channel Bandwidth and Transmission Bandwidth Configuration
for one E-UTRA carrier.

Figure 5.6-2 illustrates the Aggregated Channel Bandwidth for intra-band carrier aggregation.

Figure 5.6-2: Definition of Aggregated Channel Bandwidth for intra-band carrier aggregation

The lower edge of the Aggregated Channel Bandwidth (BWChannel_CA) is defined as Fedge_low = FC_low – Foffset. The upper edge of the Aggregated Channel Bandwidth is defined as Fedge_high = FC_high + Foffset. The Aggregated Channel Bandwidth, BWChannel_CA, is defined as follows:

BWChannel_CA = Fedge_high – Fedge_low [MHz]

Figure 5.6-3: illustrates the sub-block bandwidth for a BS operating in non-contiguous spectrum.

Figure 5.6-3: Definition of Sub-block Bandwidth for intra-band non-contiguous spectrum

The lower sub-block edge of the sub-block bandwidth (BWChannel,block) is defined as Fedge,block, low = FC,block,low – Foffset. The upper sub-block edge of the sub-block bandwidth is defined as Fedge,block,high = FC,block,high + Foffset. The sub-block bandwidth, BWChannel,block, is defined as follows:

BWChannel,block = Fedge,block,high – Fedge,block,low [MHz]

Foffset is defined in Table 5.6-2 below where BWChannel is defined in Table 5.6-1.

Table 5.6-2: Definition of Foffset

 Channel Bandwidth of the Lowest or Highest Carrier: BWChannel[MHz] Foffset[MHz] 5, 10, 15, 20 BWChannel/2

NOTE 1: Foffset is calculated separately for each Base Station RF Bandwidth edge / sub-block edge.

NOTE 2: The values of BWChannel_CA /sub-block bandwidth for UE and BS are the same if the channel bandwidths of lowest and the highest component carriers are identical.

For NB-IoT, requirements in present document are specified for the channel bandwidths listed in Table 5.6-3.

Table 5.6-3: Transmission bandwidth configuration NRB, Ntone 15kHz and Ntone 3.75kHz in NB-IoT channel bandwidth

 NB-IoT Standalone In-band Guard Band Channel bandwidth BWChannel [kHz] 200 E-UTRA channel bandwidth in Table 5.6-1 for BWChannel>1.4MHz E-UTRA channel bandwidth in Table 5.6-1 for BWChannel>3MHz Transmission bandwidth configuration NRB 1 1 1 Transmission bandwidth configuration Ntone 15kHz 12 12 12 Transmission bandwidth configuration Ntone 3.75kHz 48 48 48

For NB-IoT standalone operation, figure 5.6-4 shows the relation between the channel bandwidth (BWChannel) and the transmission bandwidth configuration (NRB, Ntone 15kHz and Ntone 3.75kHz) for NB-IoT standalone operation. The channel edges are defined as the lowest and highest frequencies of the carrier separated by the channel bandwidth, i.e. at FC +/- BWChannel /2.

For NB-IoT standalone operation, NB-IoT requirements for receiver and transmitter shall apply with a frequency offset Foffset  as defined in Table 5.6-3A.

Table 5.6-3A: Foffset for NB-IoT standalone operation

 Lowest or Highest Carrier Foffset Standalone NB-IoT 200 kHz

Figure 5.6-4 Definition of Channel Bandwidth and Transmission Bandwidth Configuration for NB-IoT standalone operation

For NB-IoT in-band operation, figure 5.6-5 shows the relation between the channel bandwidth (BWChannel) and the transmission bandwidth configuration (NRB, Ntone 15kHz and Ntone 3.75kHz). The channel edges are defined as the lowest and highest frequencies of the carrier separated by the channel bandwidth, i.e. at FC +/- BWChannel /2.

Figure 5.6-5 Definition of Channel Bandwidth and Transmission Bandwidth Configuration for NB-IoT in-band operation

For NB-IoT guard band operation, figure 5.6-6 shows the relation between the channel bandwidth (BWChannel) and the transmission bandwidth configuration (NRB, Ntone 15kHz and Ntone 3.75kHz). The channel edges are defined as the lowest and highest frequencies of the carrier separated by the channel bandwidth, i.e. at FC +/- BWChannel /2.

Figure 5.6-6 Definition of Channel Bandwidth and Transmission Bandwidth Configuration for NB-IoT guard band operation