5.6 Channel bandwidth

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

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/BWChannel,block 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