SK-Counter

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

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

First seen v15.6.0 (2019-06) · Not changed since

Definition

The IE SK-Counter is a counter used upon initial configuration of SN security for NR-DC and NE-DC, as well as upon refresh of S-K gNB or S-K eNB based on the current or newly derived K gNB during RRC Resume or RRC Reconfiguration, as defined in TS 33.501 [11].

SK-Counter ::=  INTEGER (0..65535)

Used by (5)

• RRCReconfiguration-v1560-IEs
• RRCReconfigurationComplete-v1800-IEs
• RRCResume-v1560-IEs
• SK-CounterConfig-r18
• SK-CounterConfigLTM-r19

In the viewer

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