3GPP Scout / RRC information elements
RRC information element
FrequencyInfoUL-SIB: 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 6 fields (5 in Rel-15, 1 in Rel-18)
- Used in
- UplinkConfigCommonSIB
In plain words
FrequencyInfoUL-SIB, an information element (IE), provides "basic parameters of an uplink carrier and transmission thereon.". Its fields identify the frequency band and additionalPmax and additionalSpectrumEmission values, Common RB 0 frequency, and carriers for different subcarrier spacings. Its ASN.1 SEQUENCE has six fields, with five in Rel-15 and one in Rel-18.
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.