3GPP Scout / RRC information elements
RRC information element
ZP-CSI-RS-Resource: the RRC information element in TS 38.331
At a glance
- Specification
- 3GPP TS 38.331 V19.4.0, clause 6.3.2
- Structure
- SEQUENCE with 3 fields (3 in Rel-15)
- Used in
- PDSCH-Config
In plain words
ZP-CSI-RS-Resource is an information element used to configure a "Zero-Power (ZP) CSI-RS resource". Its ID identifies the resource configuration, and resourceMapping sets its OFDM-symbol and subcarrier occupancy within a slot. periodicityAndOffset gives periodicity and slot offset for periodic or semi-persistent ZP-CSI-RS. In TS 38.331 V19.4.0, it has three fields, matching the three reported for Rel-15, so this comparison shows no field-count growth.
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
- 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
- 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.