CellGroupId

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.2

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

First seen v15.0.0 (2018-01) · Last changed v15.1.0 (2018-04)

Definition

The IE CellGroupId is used to identify a cell group. Value 0 identifies the master cell group. Other values identify secondary cell groups. In this version of the specification only values 0 and 1 are supported.

CellGroupId ::=                             INTEGER (0.. maxSecondaryCellGroups)

Used by (3)

• CellGroupConfig
• FailureInfoRLC-Bearer
• PDCP-Config

Uses (1)

• maxSecondaryCellGroups

In the viewer

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