Patent ID: 8902827

Claim:
A relay of a wireless communication system for handling data forwarding between at least a user equipment (UE) and a base station, the relay comprising: a UE interfacing unit for communicating with the base station and establishing at least a radio bearer with the base station based on quality of service (QoS) levels, the UE interfacing unit comprising: an access stratum (AS) unit for performing AS functionalities with the base station based on a first AS protocol; a base station (BS) interfacing AS unit for wirelessly performing BS AS functionalities with the UEs based on a second AS protocol and exchanging data with the UE interfacing unit; a mapping unit for mapping the at least a radio bearer with a plurality of radio bearers established between the relay and the UEs based on the QoS levels, wherein the number of the radio bearers established between the relay and the UEs is larger than the number of the at least a radio bearer; and a forwarding unit for forwarding the radio bearer data from the UEs to the base station according to the mapping results.