UE Specific Signaling Carrier Indicator For Carrier Aggregation

摘要

A node of a communication system having a plurality of aggregated component carriers CCs determines that a user equipment UE is capable of operating simultaneously on multiple CCs. During configuration or re-configuration of the UE, the node sends to the UE radio resource control RRC signaling along with an indication of which of the plurality of CCs to which the RRC signaling applies. In an embodiment the determining is from a UE capability information element that the UE sends which indicates at least a maximum number of downlink or uplink CCs on which the UE can simultaneously communicate. There may be a separate indication for each downlink and each uplink CC to which the RRC signaling applies, and the CCs for which the RRC signaling relates may be reconfigured upon handover to another cell or during any configuration/re-configuration.