Method and apparatus to improve discontinuous reception(DRX) operation for TDD(Time Division Duplex) and FDD(Frequency Division Duplex) mode in carrier aggregation(CA)

摘要

A method and apparatus are disclosed for performing DRX operation in a mobile communications system with carrier aggregation (CA), the PCell and SCells having different TDD UL-DL configurations. In one embodiment, the method comprises (i) configuring a plurality of cells for carrier aggregation, (ii) configuring the plurality of cells with a plurality of TDD UL-DL configurations, wherein said TDD UL-DL configurations are different for each of said activated cells, (iii) configuring the plurality of cells for DRX operation, (iv) configuring a set of DRX timers for the plurality of cells, and (v) running the set of DRX timers for the plurality of cells.