5.3 UE channel bandwidth

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

5.3.1 General

The UE channel bandwidth supports a single NR RF carrier in the uplink or downlink at the UE. From a BS perspective, different UE channel bandwidths may be supported within the same spectrum for transmitting to and receiving from UEs connected to the BS. Transmission of multiple carriers to the same UE (CA) or multiple carriers to different UEs within the BS channel bandwidth can be supported.

From a UE perspective, the UE is configured with one or more BWP / carriers, each with its own UE channel bandwidth. The UE does not need to be aware of the BS channel bandwidth or how the BS allocates bandwidth to different UEs.

The placement of the UE channel bandwidth for each UE carrier is flexible but can only be completely within the BS channel bandwidth.

The relationship between the channel bandwidth, the guardband and the maximum transmission bandwidth configuration is shown in Figure 5.3.1-1.

Figure 5.3.1-1: Definition of the channel bandwidth and the maximum transmission bandwidth configuration for one NR channel

5.3.2 Maximum transmission bandwidth configuration

The maximum transmission bandwidth configuration NRB for each UE channel bandwidth and subcarrier spacing is specified in Table 5.3.2-1.

Table 5.3.2-1: Maximum transmission bandwidth configuration NRB

SCS (kHz)

5

MHz

10

MHz

15

MHz

20

MHz

25

MHz

30

MHz

35

MHz

40

MHz

45

MHz

50

MHz

60

MHz

70

MHz

80

MHz

90

MHz

100

MHz

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

NRB

15

25

52

79

106

133

160

188

216

242

270

N/A

N/A

N/A

N/A

N/A

30

11

24

38

51

65

78

92

106

119

133

162

189

217

245

273

60

N/A

11

18

24

31

38

44

51

58

65

79

93

107

121

135

5.3.3 Minimum guardband and transmission bandwidth configuration

The minimum guardband for each UE channel bandwidth and SCS is specified in Table 5.3.3-1,

Table 5.3.3-1: Minimum guardband for each UE channel bandwidth and SCS (kHz)

SCS (kHz)

5

MHz

10

MHz

15

MHz

20

MHz

25

MHz

30

MHz

35

MHz

40

MHz

45

MHz

50

MHz

60

MHz

70

MHz

80

MHz

90

MHz

100

MHz

15

242.5

312.5

382.5

452.5

522.5

592.5

572.5

552.5

712.5

692.5

N/A

N/A

N/A

N/A

N/A

30

505

665

645

805

785

945

925

905

1065

1045

825

965

925

885

845

60

N/A

1010

990

1330

1310

1290

1630

1610

1590

1570

1530

1490

1450

1410

1370

NOTE: The minimum guardbands have been calculated using the following equation: (BWChannel x 1000 (kHz) – NRB x SCS x 12) / 2 – SCS/2, where NRB are from Table 5.3.2-1.

Figure 5.3.3-1: Void

The number of RBs configured in any channel bandwidth shall ensure that the minimum guardband specified in this clause is met.

Figure 5.3.3-2: UE PRB utilization

In the case that multiple numerologies are multiplexed in the same symbol due to BS transmission of SSB, the minimum guardband on each side of the carrier is the guardband applied at the configured channel bandwidth for the numerology that is received immediately adjacent to the guard.

If multiple numerologies are multiplexed in the same symbol and the UE channel bandwidth is >50 MHz, the minimum guardband applied adjacent to 15 kHz SCS shall be the same as the minimum guardband defined for 30 kHz SCS for the same UE channel bandwidth.

Figure 5.3.3-3 Guard band definition when transmitting multiple numerologies

NOTE: Figure 5.3.3-3 is not intended to imply the size of any guard between the two numerologies. Inter-numerology guard band within the carrier is implementation dependent.

For a UE supporting wideband operation, the nominal intra-cell guard bands and the corresponding sizes of the RB sets separated by the said guard bands are as specified in Table 5.3.3-2 for each UE channel bandwidth and sub-carrier spacing for the downlink and uplink. The nominal intra-cell guard bands in Table 5.3.3-2 are applicable when the respective IE intraCellGuardBandsUL-List and intraCellGuardBandsDL-List [7] for the uplink and downlink are not provided, as specified in [10] clause 7.

Table 5.3.3-2: Nominal intra-cell guard bands for wideband operation

SCS

(kHz)

40 MHz

60 MHz

80 MHz

100 MHz

15

105-6-105

(216)

N/A

N/A

N/A

30

50-6-50

(106)

50-6-50-6-50

(162)

50-6-50-5-50-6-50

(217)

50-6-50-6-49-6-50-6-50

(273)

60

23-5-23

(51)

23-5-23-5-23

(79)

23-5-23-5-23-5-23

(107)

23-5-23-5-23-5-23-5-23

(135)

NOTE 1: The intra-cell guard band is denoted TBW0-GB0-…-GBN_RBset-2-TBWN_RBset-1 for N_RBset > 1 number of RB-sets with TBWr the maximum transmission bandwidth (PRB) of RB-set r and GBr the guard band (PRB) above the upper edge of RB-set r. The RB-set 0 is starting at the first common resource block (CRB) of the carrier as indicated by offsetToCarrier. The total transmission bandwidth configuration (size of resource grid) including guard bands is given in between parentheses.

For a UE that supports shared spectrum channel access, there are no uplink or downlink intra-cell guard bands for operation with 10 MHz and 20 MHz channel bandwidths; the maximum transmission bandwidth configurations for these channel bandwidths are in accordance with clause 5.3.2.

For each UE channel bandwidth and sub-carrier spacing given by Table 5.3.3-2, the maximum transmission bandwidth configuration of the carrier including intra-cell guard bands, if configured for the uplink and downlink by the respective IE intraCellGuardBandsUL-List and intraCellGuardBandsDL-List [7], and corresponding RB-set(s) shall be in accordance with clause 5.3.2 with a minimum inter-cell guard band of the UE channel bandwidth as specified in Table 5.3.3-1 for the uplink and downlink. Minimum requirements specified for wideband operation in Clause 6 and Clause 7 also apply for intra-cell guard bands larger than the nominal sizes in Table 5.3.3-2 as listed in Table 5.3.3-3 for each sub-carrier spacing; each guard band in order of CRB index must be larger than or equal to the corresponding nominal guard band specified in Table 5.3.3-2 for each channel bandwidth.

Table 5.3.3-3: Applicable intra-cell guard bands for wideband operation

Parameter

Unit

SCS

15 kHz

30 kHz

Intra-cell guard band (size)

PRB

6,7

5,6,7

Transmission bandwidth (size) of RB-set

PRB

104,105

49,50,51

If the UE is configured with zero width intra-cell guard bands for the uplink and downlink by the IE intraCellGuardBandsUL-List and intraCellGuardBandsDL-List [7] on a carrier greater than 20 MHz, the maximum transmission bandwidth configuration for the uplink and downlink shall be in accordance with clause 5.3.2 with a minimum inter-cell guard band of the UE channel bandwidth as specified in Table 5.3.3-1.

5.3.4 RB alignment

For each numerology, its common resource blocks are specified in Clause 4.4.4.3 in TS 38.211 [6], and the starting point of its transmission bandwidth configuration on the common resource block grid for a given channel bandwidth is indicated by an offset to "Reference point A" in the unit of the numerology. The UE transmission bandwidth configuration is indicated by the higher layer parameter carrierBandwidth [7] and will fulfil the minimum UE guardband requirement specified in Clause 5.3.3.

5.3.5 UE channel bandwidth per operating band

The requirements in this specification apply to the combination of channel bandwidths, SCS and operating bands shown in Table 5.3.5-1. The transmission bandwidth configuration in Table 5.3.2-1 shall be supported for each of the specified channel bandwidths. The channel bandwidths are specified for both the TX and RX path.

Table 5.3.5-1 Channel bandwidths for each NR band

NR Band

SCS (kHz)

UE Channel bandwidth (MHz)

5

10

15

20

25

30

35

40

45

50

60

70

80

90

100

n1

15

5

10

15

20

25

30

40

454

50

30

10

15

20

25

30

40

454

50

60

10

15

20

25

30

40

454

50

n2

15

5

10

15

20

25

30

354

40

30

10

15

20

25

30

354

40

60

10

15

20

25

30

354

40

n3

15

5

10

15

20

25

30

354

40

454

50

30

10

15

20

25

30

354

40

454

50

60

10

15

20

25

30

354

40

454

50

n5

15

5

10

15

20

253

30

10

15

20

253

60

n7

15

5

10

15

20

25

30

354

40

50

30

10

15

20

25

30

354

40

50

60

10

15

20

25

30

354

40

50

n8

15

5

10

15

20

353,4

30

10

15

20

353,4

60

n12

15

5

10

15

30

10

15

60

n13

15

5

10

30

10

60

n1410

15

5

10

30

10

60

n18

15

5

10

15

30

10

15

60

n20

15

5

10

15

20

30

10

15

20

60

n24

15

5

10

30

10

60

10

n25

15

5

10

15

20

25

30

354

40

453,4

30

10

15

20

25

30

354

40

453,4

60

10

15

20

25

30

354

40

453,4

n26

15

5

10

15

20

253

303

30

10

15

20

253

303

n28

15

5

10

15

207

257

307

30

10

15

207

257

307

60

n29

15

5

10

30

10

60

n30

15

5

10

30

10

60

n34

15

5

10

15

30

10

15

60

10

15

n3810

15

5

10

15

20

25

30

40

30

10

15

20

25

30

40

60

10

15

20

25

30

40

n39

15

5

10

15

20

25

30

40

30

10

15

20

25

30

40

60

10

15

20

25

30

40

n40

15

55

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

70

80

90

100

60

10

15

20

25

30

40

50

60

70

80

90

100

n41

15

54,11

10

15

20

254

30

354

40

454

50

30

10

15

20

254

30

354

40

454

50

60

70

80

90

100

60

10

15

20

254

30

354

40

454

50

60

70

80

90

100

n46

15

105

20

40

30

105

20

40

60

80

1004

60

105

20

40

60

80

1004

n4710

15

10

20

30

40

30

10

20

30

40

60

10

20

30

40

n48

15

55

10

15

20

30

40

506

30

10

15

20

30

40

506

606

706

806

906

1006

60

10

15

20

30

40

506

606

706

806

906

1006

n50

15

55

10

15

20

30

40

50

30

10

15

20

30

40

50

60

803

60

10

15

20

30

40

50

60

803

n51

15

5

30

60

n53

15

5

10

30

10

60

10

n65

15

5

10

15

20

50

30

10

15

20

50

60

10

15

20

50

n66

15

5

10

15

20

25

30

354

40

454

30

10

15

20

25

30

354

40

454

60

10

15

20

25

30

354

40

454

n67

15

5

10

15

20

30

10

15

20

60

n70

15

5

10

15

203

253

30

10

15

203

253

60

10

15

203

253

n71

15

5

10

15

20

253

303

353,4

30

10

15

20

253

303

353,4

60

n74

15

5

10

15

20

30

10

15

20

60

10

15

20

n75

15

5

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

10

15

20

25

30

40

50

n76

15

5

30

60

n77

15

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

70

80

90

100

60

10

15

20

25

30

40

50

60

70

80

90

100

n78

15

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

70

80

90

100

60

10

15

20

25

30

40

50

60

70

80

90

100

n7910

15

10

20

30

40

50

30

10

20

30

40

50

60

704

80

90

100

60

10

20

30

40

50

60

704

80

90

100

n80

15

5

10

15

20

25

30

40

30

10

15

20

25

30

40

60

10

15

20

25

30

40

n81

15

5

10

15

20

30

10

15

20

60

n82

15

5

10

15

20

30

10

15

20

60

n83

15

5

10

15

207

257

307

30

10

15

207

257

307

60

n84

15

5

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

10

15

20

25

30

40

50

n85

15

5

10

15

30

10

15

60

n86

15

5

10

15

20

40

30

10

15

20

40

60

10

15

20

40

n89

15

5

10

15

20

30

10

15

20

60

50

n90

15

54

10

15

20

254

30

354

40

454

50

30

10

15

20

254

30

354

40

454

50

60

70

80

90

100

60

10

15

20

254

30

354

40

454

50

60

70

80

90

100

n91

15

5

108

30

60

n92

15

5

10

15

20

30

10

15

20

60

n93

15

5

108

30

60

n94

15

5

10

15

20

30

10

15

20

60

n95

15

5

10

15

30

10

15

60

10

15

n96

15

20

40

30

20

40

60

80

1004

60

20

40

60

80

1004

n97

15

5

10

15

20

25

30

40

50

30

10

15

20

25

30

40

50

60

70

80

90

100

60

10

15

20

25

30

40

50

60

70

80

90

100

n98

15

5

10

15

20

25

30

40

30

10

15

20

25

30

40

60

10

15

20

25

30

40

15

5

10

n99

30

10

60

10

n100

15

5

30

60

n101

15

5

10

30

10

60

n102

15

20

40

30

20

40

60

80

1004

60

20

40

60

80

1004

n104

15

20

30

40

50

30

20

30

40

50

60

70

80

90

100

60

20

30

40

50

60

70

80

90

100

NOTE 1: Void.

NOTE 2: Void.

NOTE 3: This UE channel bandwidth is applicable only to downlink.

NOTE 4: This UE channel bandwidth is optional in this release of the specification.

NOTE 5: For this bandwidth, the minimum requirements are restricted to operation when carrier is configured as an SCell part of DC or CA configuration.

NOTE 6: For this bandwidth, the minimum requirements are restricted to operation when carrier is configured as a downlink SCell part of CA configuration.

NOTE 7: For the 20 MHz bandwidth, the minimum requirements are specified for NR UL carrier frequencies confined to either 713-723 MHz or 728-738 MHz. For the 25 MHz bandwidth, the minimum requirements are specified for NR UL carrier frequencies confined to either 715.5-720.5 MHz or 730.5-735.5 MHz. For the 30MHz bandwidth, the minimum requirements are specified for NR UL transmission bandwidth configuration confined to either 703-733 or 718-748 MHz.

NOTE 8: This UE channel bandwidth is applicable only to uplink.

NOTE 9: Void.

NOTE 10: For this band, UE channel bandwidths which are applicable to sidelink operation are specified in Table 5.3E.1-1.

NOTE 11: Not all frequency positions of 5 MHz carriers are possible due limitations of the SSB position relative to the 5 MHz channels. 5 MHz channels with Fc such that 2499+N*1.2 ≤Fc<2499.3+N*1.2MHz for 0≤N<157 are not compatible with SSB positions and cannot be used for 5 MHz n41.

5.3.6 Asymmetric channel bandwidths

The UE channel bandwidth can be asymmetric in downlink and uplink. In asymmetric channel bandwidth operation, the narrower carrier shall be confined within the frequency range of the wider channel bandwidth.

In FDD, the confinement is defined as a maximum deviation to the Tx-Rx carrier center frequency separation (defined in table 5.4.4-1) as following:

ΔFTX-RX = | (BWDL – BWUL)/2 |

The operating bands and supported asymmetric channel bandwidth combinations are defined in table 5.3.6-1.

Table 5.3.6-1: FDD asymmetric UL and DL channel bandwidth combinations

NR Band

Channel bandwidths for UL (MHz)

Channel bandwidths for DL (MHz)

Asymmetric channel bandwidth combination set

n5

20

25

0

n8

20

35

0

n24

10

5

0

n25

40

45

0

n26

20

25, 30

0

n66

5, 10

20, 40

0

20

40

5, 10

20, 25, 30, 40

1

20, 25, 30

40

n70

5, 10

15

0

5, 10, 15

20, 25

n71

5

10

0

10

15

15

20

5

10

1

10

15

15

20

20

35

20

25, 30, 35

2

n911

10

5

0

n921

5

10, 15, 20

0

10

15, 20

n931

10

5

0

n941

5

10, 15, 20

0

10

15, 20

NOTE 1: The assignment of the paired UL and DL channels are subject to a TX-RX separation as specified in clause 5.4.4.

NOTE 2: As indicated in TS38.306 [15], it is mandatory for UEs to support asymmetric channel BCS0 if there is an asymmetric BCS0 defined for the band.

In TDD, the operating bands and supported asymmetric channel bandwidth combinations are defined in table 5.3.6-2.

Table 5.3.6-2: TDD asymmetric UL and DL channel bandwidth combinations

NR Band

Channel bandwidths for UL (MHz)

Channel bandwidths for DL (MHz)

n50

60

80

NOTE 1: Both centre frequency and BWP-ID shall match between DL and UL carriers as defined in TS 38.331 [7] cl. 6.3.2 and TS 38.213 [8] clause 12.

NOTE 2: In a case a UE is configured with a full width of BWP within both UL/ DL channels, the centre frequency of UL/ DL channels shall be same.

NOTE 3: A position of Point A is common between UL and DL carriers as defined in TS 38.331 [7] cl. 6.3.2.