Patent ID: 8432915

Claim:
A terminal in a wireless communication system comprising: a first entity handling a dedicated transport channel (DCH); and a second entity handling an enhanced dedicated transport channel (E-DCH), wherein the second entity receives a plurality of service data units from the first entity, concatenates the plurality of received service data units, and adds a header to the concatenated service data units to generate a protocol data unit for an uplink, wherein the protocol data unit comprises: the concatenated plurality of service data units classified into at least two groups, each group having service data units belonging to each logical channel, and service data units belonging to one logical channel having a same size, and a plurality of logical channel identifier information, wherein each of the plurality of logical channel identifier information relates to a respective group of the at least two groups; wherein each logical channel is located between a radio link control (RLC) layer and a medium access control (MAC) layer, wherein the MAC layer comprises the first entity and the second entity, and wherein each of the logical channel identifier information is included in the header of the protocol data unit.