SIB22 (SIB22-r18)

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.1

SIB22-r18 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v18.0.0 (2024-01) · Last changed v18.5.0 (2025-03)

Definition

SIB22 contains ATG assistance information for ATG access.

SIB22-r18 ::=                         SEQUENCE {
    atg-Config-r18                        ATG-Config-r18                                     OPTIONAL,     -- Need R
    hs-ATG-CellReselectionSet-r18         ENUMERATED {true}                                  OPTIONAL,     -- Need R
    atg-NeighCellConfigList-r18           ATG-NeighCellConfigList-r18                        OPTIONAL,     -- Need R
    lateNonCriticalExtension              OCTET STRING                                       OPTIONAL,
    ...
}

Fields (4)

Field	Description
atg-Config-r18 ATG-Config-r18 · OPTIONAL Need R	Provides parameters needed for ATG access such as ATG gNB location information, cell Specific Koffset, TA Report indication.
hs-ATG-CellReselectionSet-r18 ENUMERATED {true} · OPTIONAL Need R since v18.5.0	Indicates whether the UE applies high speed inter-frequency measurements requirements for inter-frequency cell reselection in RRC_IDLE and RRC_INACTIVE states as specified in TS 38.133 [14]. If the field is absent UE applies only the NR cell reselection requirements as specified in TS 38.133 [14].
atg-NeighCellConfigList-r18 ATG-NeighCellConfigList-r18 · OPTIONAL Need R	Provides ATG assistance information of ATG neighbour cells.
lateNonCriticalExtension OCTET STRING · OPTIONAL

Used by (1)

SystemInformation-IEs

SIB22 (SIB22-r18)

Definition

Fields (4)

Used by (1)

Uses (2)

In the viewer