Patent ID: 8824362

Claim:
A method performed by a UE for communicating a serving grant to a network node, wherein the UE is capable of communicating with the network node using at least two uplink channels, a primary channel and a secondary channel, the method comprising: storing a serving grant in a storage unit, wherein the serving grant is associated with either the primary channel or the secondary channel and the serving grant indicates the maximum amount of a particular resource the UE is allowed to use in the uplink channel with which the serving grant is associated; generating a layer two protocol data unit (L2 PDU); and transmitting the L2 PDU to the network node, wherein the step of generating the L2 PDU comprises adding to the L2 PDU at least one of: (a) deactivation information indicating that the secondary channel should be deactivated, (b) the serving grant and information indicating the uplink channel with which the serving grant is associated, and (c) the serving grant and a second serving grant, wherein the first recited serving grant is associated with the primary channel and the second serving grant is associated with the secondary channel; and wherein the L2 PDU comprises a scheduling information (SI) component, and the step of generating the L2 PDU comprises including in the SI component of the L2 PDU: (a) the serving grant or the deactivation information and (b) a format value indicating a format of the SI component.