Patent ID: 7746833

Claim:
A wireless transmit receive unit (WTRU) for code division multiple access (CDMA) telecommunications comprising: a processor configured to process data in a physical layer and a medium access control (MAC) layer such that the MAC layer provides data to the physical layer via a transport channel (TrCH) associated with a set of logical channels that includes at least two logical channels with different logical types, the TrCH defined to transport data in transfer blocks (TBs) of specific bit sizes such that each TB consists of a data packet portion for a logical channel having a bit size evenly divisible by N, where N is a selected integer greater than three (3), and a MAC header of a selected bit size that reflects the logical channel type; the processor configured to pad the MAC header of each TB with a predetermined number of bits such that the same number of padding bits are used for all TBs for the TrCH whereby the total number of bits in the padded MAC headers and the padded TBs are equally divisible by N; and a radio transmission component associated with the processor and configured to transmit the TBs having the padded MAC headers.