Patent ID: 8385196

Claim:
A method for scheduling transmission of uplink (UL) data from a wireless transmit/receive unit (WTRU), comprising: determining a current buffer status, associated with a first group of UL radio bearers (RBS), based on respective token bucket sizes of the first group of RBs for respective bit rates; determining UL data associated with a second UL RB of a second group of UL RB has become available for transmission; providing a buffer status report (BSR), the BSR being provided: (i) on condition that the current buffer status indicates a buffer in the WTRU includes pending UL data associated with at least one UL RB of the first group of UL RBs for transmission, the UL data associated with the second UL RB becomes available for transmission, and the UL data associated with the uplink second UL RB has a priority higher than a priority of the at least one UL RB of the first group of UL RB; and (ii) on condition that the current buffer status indicated the buffer lacks pending UL data associated with any UL RB of the first group of UL RBs for transmission, and the UL data associated with the second UL RB has become available for transmission; and receiving a grant for transmission of the UL data associated with the second UL RB in response to the provided BSR.