Does 4G support carrier aggregation?

5G NR CA now supports up to 16 contiguous and non-contiguous CCs and can aggregate new 5G bands up to approximately 1 GHz of spectrum. Dual connectivity allows a user equipment to simultaneously transmit and receive data on multiple CCs from cwo cell groups (i.e. a master eNB and secondary eNB).

What Is Carrier Aggregation? CA is a provision in 4G and 5G cellular standards mobile carriers use to provide faster speeds to subscribers and/or increased network capacity . While several factors impact data speeds, CA is vital for improving speed for end users and will continue to be in the future.23 Eyl 2021

Carrier Aggregation, CA is an essential element of 4G LTE Advanced enabling much higher data rates to be achieved by combining two or more carriers. LTE Advanced Carrier Aggregation, CA, is one of the key techniques used to enable the very high data rates of 4G to be achieved.

Carrier Aggregation (CA) is a feature of LTE-Advanced that allows mobile operators & devices to combine two or more LTE carriers into a single data change . It leads to an increase in the capacity of the network and the data rates by exploiting fragmented spectrum allocations.