#GalaxyTechfluencer
HSPA+/UMTS
LTE and advanced
About Carrier aggregation
It's a used in wireless communication to increase the data rate per user, whereby multiple frequency blocks assigned to the same user.
Types
1) intra-band contiguous (same frequency band)
2)intra-band non-contiguous (same frequency band but are separated by a gap the carrier aggregation)
3) inter-band carrier aggregation (different frequency band)
Application and support
HSPA+/UMTS
The chanel bandwidth for UMTS/HSPA+ is about 3.8 MHz with a carrier spacing of 5 MHz. Carrier aggregation is also called Dual Cell in the context of UMTS/HSPA+.
LTE and advanced
LTE supports since its first release channel bandwidths of 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz and 20 MHz.
More about CA
Three CA configurations are defined
| Type of CA and duplex type | CA configuration | Maximum aggregated bandwidth (MHz) | Max number of CC |
| Intra-band contiguous FDD | CA_1C | 40 | 2 |
| Intra-band contiguous TDD | CA_40C | 40 | 2 |
| Inter-band FDD | CA_1A_5A | 20 | 1 + 1 |
