Glossary
SCell (Secondary Cell) in 3GPP: meaning and where it is specified
At a glance
- Term
- SCell
- Stands for
- Secondary Cell
- Defined in
- 3GPP TR 21.905 V19.2.0, clause 4
- Used in
- TS 36.300, TS 36.331, TS 38.331
In plain words
The glossary expands SCell as "SCell Secondary Cell", identifying the term as Secondary Cell. TS 36.331 treats a PSCell as an SCell except in the (NG)EN-DC case, while TS 38.331 describes an SCell configured with PUCCH. TS 36.300 defines a Secondary PUCCH group using SCells and a PUCCH SCell.
Source: 3GPP TR 21.905 V19.2.0, clause 4. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/21_series/21.905/21905-j20.zip
Sources
- 3GPP TR 21.905 V19.2.0, clause 4. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/21_series/21.905/21905-j20.zip
- 3GPP TS 36.331 V16.21.0, clause 3.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.331/36331-gl0.zip
- 3GPP TS 38.331 V19.4.0, clause 3.1. © 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
- 3GPP TS 36.300 V17.13.0, clause 3.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.300/36300-hd0.zip
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.