Methods and apparatuses for supplementing MBMS transmission to a relay via unicast transmission

摘要

A method for supporting broadcast transmission in a wireless communication system (200) that comprises a plurality of communication cells, with broadcast content being routed from a base station (210) to at least one wireless communication unit (225, 226) via at least one relay node (RN) (224) is described. The method comprises, at the base station (210) broadcasting the broadcast content from the base station (210) to at least one from a group consisting of: the at least one RN (224), the at least one wireless communication unit (226); and supplementing the broadcast transmission with at least one augmented unicast transmission associated with the broadcast content. A base station (210), an integrated circuit and a non-transitory computer program product comprising executable program code are also described. A relay node (224), an integrated circuit, a method performed at the relay node and a non-transitory computer program product comprising executable program code are also described.

主权项

1. A method for supporting broadcast transmission in a wireless communication system that comprises a plurality of communication cells, with non-rebroadcasted broadcast content being routed from a base station to at least one wireless communication unit via at least one relay node (RN), wherein the method comprises, at the base station:
broadcasting the non-rebroadcasted broadcast content from the base station to the at least one RN and the at least one wireless communication unit at the same time; and supplementing the broadcast transmission with at least one augmented unicast transmission associated with the non-rebroadcasted broadcast content, wherein:
the at least one augmented unicast transmission carries additional error coding redundancy bits associated with the broadcast content;transmission of the at least one augmented unicast transmission is dynamically initiated to the at least one RN; andthe broadcast content is multimedia multicast content.