Patent ID: 8767604

Claim:
A User Equipment, UE, connectable over multiple carriers to a network node of a wireless communication system wherein the UE is capable of discontinuous reception (DRX), the UE comprising: a processor configured to enter a first DRX state on a non-anchor carrier of the multiple carriers where the UE does not monitor system signaling on the non-anchor carrier over multiple DRX cycles when in the first DRX state; and a receiver configured to receive control information on an anchor carrier controlling transition between the first DRX state of the non-anchor carrier and a second DRX state of the non-anchor carrier where the UE is required to periodically monitor system signaling on the non-anchor carrier in the second DRX state; wherein the anchor carrier is used for control signaling and system information, and wherein the non-anchor carrier is only used to carry data.