FreqBandList

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.3

FreqBandList is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v15.1.0 (2018-04) · Not changed since

Definition

The IE FreqBandList is used by the network to request NR CA, NR non-CA and/or MR-DC band combinations for specific NR and/or E-UTRA frequency bands and/or up to a specific number of carriers and/or up to specific aggregated bandwidth. This is also used to request feature sets (for NR) and feature set combinations (for NR and MR-DC). For NR sidelink communication, this is used by the initiating UE to request sidelink UE radio access capabilities from the peer UE. This is also used to request lower MSD capability for specific NR frequency bands for the UE supporting lower MSD.

FreqBandList ::=                SEQUENCE (SIZE (1..maxBandsMRDC)) OF FreqBandInformation

Used by (5)

• RF-Parameters
• RF-ParametersMRDC
• UE-CapabilityRequestFilterNR
• UECapabilityEnquirySidelink-r16-IEs
• UECapabilityInformationSidelink-r16-IEs

Uses (2)

• FreqBandInformation
• maxBandsMRDC

In the viewer

• Read FreqBandList in v19.4.0
• History of FreqBandList across versions
• All versions of TS 38.331
• ASN.1 index