3GPP Scout / RRC information elements

RRC information element

CSI-MeasConfig: the RRC information element in TS 38.331

Published 2026-11-05Updated 2026-10-16

At a glance

Specification
3GPP TS 38.331 V19.4.0, clause 6.3.2
Structure
SEQUENCE with 32 fields (17 in Rel-15, 1 in Rel-16, 2 in Rel-17, 2 in Rel-18, 10 in Rel-19)
Used in
ServingCellConfig

In plain words

CSI-MeasConfig organizes channel state information (CSI) measurement resources, including pools of NZP-CSI-RS resources, resource sets, and CSI-IM resources. It is also used to configure serving-cell CSI logging, and one pool is described as "Pool of NZP-CSI-RS-Resource which can be referred to from NZP-CSI-RS-ResourceSet.". TS 38.331 V19.4.0 defines 32 fields: 17 from Rel-15, then 1, 2, 2, and 10 added in Rel-16, Rel-17, Rel-18, and Rel-19.

Source: 3GPP TS 38.331 V19.4.0, clause 6.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38331-j40.zip

Sources

  1. 3GPP TS 38.331 V19.4.0, clause 6.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38331-j40.zip
  2. ASN.1 definition in the same clause, counted by 3GPP Scout.

How this page was made

The facts box comes straight from the 3GPP TDoc list and specification archive as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.