Adding channel bandwidth to existing NR bands

Aug 08, 2022

The adding channel bandwidth support to existing NR bands work item specifies additional channel bandwidth – sub-carrier spacing combinations for each considered band for BS/UEs supporting the wider NR channel bandwidth for a more efficient use of operator’s available spectrum. The band should be a specified NR band, including SUL and SDL bands.

880092

Adding channel bandwidth support to existing NR bands

NR_bands_R17_BWs

RP-221212

The following requirements were introduced as part of the Work Item:

Channel bandwidth objectives: Many of the E-UTRA bands that were re-farmed specified E-UTRA channel bandwidth (5, 10, 15 and 20 MHz) To define additional channel bandwdiths for each considered FR1 and FR2 bands. The FR1 channel bandwidths consist of: {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} and the FR2 channel bandwidth consist of: {50 MHz, 100 MHz, 200 MHz, 400 MHz}.
NR band objectives: Channel bandwidth in existing NR band. The band should be a specified NR band, including SUL and SDL bands.

The latest Status report for the Work Item (RP-221213) reported on agreements approved at 3GPP TSG RAN meeting #96 (June 06-09, 2022), on detailed work from RAN4 Working Group.

See a list of related CRs: select "TSG Status = Approved" in: https://portal.3gpp.org/ChangeRequests.aspx?q=1&workitem=880092,880192

Acronyms:

BW : Bandwidth
BWP : Bandwidth Part
BW_Channel : Channel bandwidth
BW_{Channel_CA} : Aggregated channel bandwidth, expressed in MHz
BW_Channel,max : Maximum channel bandwidth supported among all bands in a release
BW_DL : Channel bandwidth for DL
BW_UL : Channel bandwidth for UL
CA : Carrier Aggregation
CC : Component Carriers
FR : Frequency Range
RF : Radio Frequency
SCS : Subcarrier spacing
SDL : Supplementary Downlink
SUL : Supplementary uplink

3GPP Work Plan:

See a listing of all work & study items here: https://www.3gpp.org/ftp/Information/WORK_PLAN/ and search for ‘NR_bands_R17_BWs’ in the acronym field of the Excel sheet there.

The text above is largely taken from the Release 17 description document TR21.917 (clause 16), which is a summary based on RP-221054 (NR_bands_R17_BWs).