Chapter 13

Carrier Aggregation

Support of wider bandwidths up to 100 MHz was one of the distinctive features of IMT-Advanced systems. The IMT-Advanced systems targeted peak data rate of 1 Gbps for low mobility and 100 Mbps for high mobility scenarios. In order to support wider transmission bandwidths, LTE Rel-10 introduced the carrier aggregation concept; where two or more component carriers with arbitrary bandwidths belonging to the same or different frequency bands could be aggregated. The support of system bandwidths up to 100 MHz would allow a substantial increase in link-level peak data rate as well as in the system capacity and user throughput. Another advantage of carrier aggregation is to allow efficient use of fragmented spectrum in the ...

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