Glossary
DCA (Dynamic Channel Allocation) in 3GPP: meaning and where it is specified
At a glance
- Term
- DCA
- Stands for
- Dynamic Channel Allocation
- Defined in
- 3GPP TR 21.905 V19.2.0, clause 4
- Used in
- TS 25.401
In plain words
DCA appears as a vocabulary term in 3GPP TR 21.905, and TS 25.401 uses it in a clause specifically scoped to TDD. For fast DCA, TS 25.401 describes it as "the process of assigning resources to Radio Bearers, and is related to Admission Control.". The TS clause title identifies the setting as TDD.
Source: 3GPP TS 25.401 V19.0.0, clause 7.2.4.6. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/25_series/25.401/25401-j00.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 25.401 V19.0.0, clause 7.2.4.6. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/25_series/25.401/25401-j00.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.