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    • 55. 发明授权
    • Method and apparatus for transmitting and receiving multimedia broadcast multicast services via a dedicated downlink carrier
    • 用于经由专用下行链路载波发送和接收多媒体广播多播服务的方法和装置
    • US08181093B2
    • 2012-05-15
    • US11962877
    • 2007-12-21
    • Alexander ReznikEldad M. ZeiraChunxuan Ye
    • Alexander ReznikEldad M. ZeiraChunxuan Ye
    • H03M13/00
    • H04W72/005
    • A method and apparatus for wireless communication of multimedia broadcast multicast services (MBMS) data and unicast data using separate downlink carriers and are disclosed. A wireless transmit/receive unit (WTRU) having a single receiver that is switchable to receive either carrier is provided. A network station, such as a Node-B, preferably encodes K MBMS data packets to N MBMS encoded packets using erasure correction coding where N is preferably significantly greater than (K+ν) which is a determined number of MBMS encoded packets sufficient to recover the K MBMS data packets. The Node-B preferably generates a superframe for carrying the N MBMS encoded packets for each MBMS and transmits the superframe via an MBMS carrier. The Node-B preferably schedules a unicast transmission such that the WTRU is provided with sufficient time to switch to the MBMS carrier to receive at least (K+ν) MBMS encoded packets per superframe.
    • 公开了一种使用单独的下行链路载波来进行多媒体广播多播服务(MBMS)数据和单播数据的无线通信的方法和装置。 提供了具有可转换以接收任一运营商的单个接收机的无线发射/接收单元(WTRU)。 诸如节点B的网络站优选地使用消息校正编码将N个MBMS编码分组的K个MBMS数据分组编码,其中N优选地明显大于(K +&ngr)),其是确定数量的MBMS编码分组,其足以 恢复K个MBMS数据包。 节点B优选地生成用于为每个MBMS携带N个MBMS编码分组的超帧,并且经由MBMS载波发送超帧。 节点B优选地调度单播传输,使得WTRU被提供足够的时间来切换到MBMS载波以每个超帧至少接收(K +&ngr)个MBMS编码分组。