RRC parameter that conveys the exact cell BW to PHY

Sakshama_Ghoslya · April 27, 2020, 3:00am

Dear Experts,

Which RRC parameter conveys the exact cell BW to PHY?

Nitin · June 19, 2020, 5:37pm

LTE or NR?

Sakshama_Ghoslya · June 19, 2020, 5:37pm

NR.
There is no straight parameter mapping from 38.104 to 38.331 of cell BW.
Like there is a parameter for supported UE bw: SupportedBandwidth.

Nitin · June 19, 2020, 5:38pm

I would think CarrierBandwidth is the RRC parameters here.

samohiuddin · June 19, 2020, 5:38pm

There is an IE which specifies the bandwidth in Resource Blocks.
For example n66 which corresponds to 100MHZ in FR2 120 kHz scs.

Sakshama_Ghoslya · June 19, 2020, 5:39pm

Base on carrierBandwidth.

marcengo · June 19, 2020, 9:08pm

As @Sakshama_Ghoslya correctly indicated, carrierBandwidth on scs-SpecificCarrierList.

From 38.331:
The IE SCS-SpecificCarrier provides parameters determining the location and width of the actual carrier or the carrier bandwidth. It is defined specifically for a numerology (subcarrier spacing (SCS)) and in relation (frequency offset) to Point A.