CA
Carrier Aggregation
Radio Access NetworkIntroduced Rel-10
Definition
The combination of multiple component carriers to increase a UE's effective bandwidth and peak data rate.
Evolution Across Releases
- Introduced in Rel-10 as the defining LTE-Advanced feature; extended to NR intra- and inter-band CA from Rel-15 onward.
Related Specifications
TS 36.300
Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2
Architecture
Rel-15TSLTE-Advanced ProUpdated 2026-07-25
TS 38.300
NR; NR and NG-RAN Overall description; Stage-2
Architecture
Rel-15TS5G NRUpdated 2026-07-25