RLC-Config

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

RLC-Config 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) · Not changed since

Definition

The IE RLC-Config is used to specify the RLC configuration of SRBs, multicast MRBs and DRBs.

RLC-Config ::=                      CHOICE {
    am                                  SEQUENCE {
        ul-AM-RLC                           UL-AM-RLC,
        dl-AM-RLC                           DL-AM-RLC
    },
    um-Bi-Directional                   SEQUENCE {
        ul-UM-RLC                           UL-UM-RLC,
        dl-UM-RLC                           DL-UM-RLC
    },
    um-Uni-Directional-UL               SEQUENCE {
        ul-UM-RLC                           UL-UM-RLC
    },
    um-Uni-Directional-DL               SEQUENCE {
        dl-UM-RLC                           DL-UM-RLC
    },
    ...
}

Fields (10)

Used by (3)

• BH-RLC-ChannelConfig-r16
• RLC-BearerConfig
• Uu-RelayRLC-ChannelConfig-r17

Uses (4)

• DL-AM-RLC
• DL-UM-RLC
• UL-AM-RLC
• UL-UM-RLC

In the viewer

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