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    • 10. 发明申请
    • Radio Transmission Method
    • 无线传输方式
    • US20080192661A1
    • 2008-08-14
    • US11597618
    • 2005-06-01
    • Yasuo HamamotoHiroshi HayashinoKazuhiro OhtaNorihito UenoYoshitaka Ohta
    • Yasuo HamamotoHiroshi HayashinoKazuhiro OhtaNorihito UenoYoshitaka Ohta
    • H04B7/26
    • H04L47/10H04L1/1887
    • Retransmission control and retransmission are performed at a lower priority than the transmission of multicast packets from a transmission apparatus to two or more reception apparatuses. A communication apparatus performs wireless multicast transmission to reliable transmit packets. In a transmission side terminal, sequence numbers are attached at a layer higher than the Mac layer to each of secured-bandwidth or priority control-type Mac layer multicast packets, and in a plurality of reception side terminals, missing packets are detected using the sequence numbers, and bandwidth other than the secured bandwidth or lower priority packets are used to perform retransmission requests. The transmission terminal retransmits data using bandwidth other than the secured bandwidth or lower priority packets, thereby enabling favorable reception of audio, video and data when transmitting the audio, video and data in real-time to the reception terminals using wireless secured bandwidth-type or priority control-type Mac layer multicast transmission.
    • 执行重发控制和重传的优先级低于从发送装置向两个或更多个接收装置的组播分组的传输。 通信装置对可靠的发送分组进行无线组播传输。 在发送侧终端中,将序列号附加在高于Mac层的层到每个安全带宽或优先级控制型Mac层组播分组,并且在多个接收侧终端中,使用序列检测丢失分组 数字和带宽以外的安全带宽或较低优先级的数据包用于执行重传请求。 传输终端使用除了安全带宽或较低优先级的分组之外的带宽重传数据,从而在使用无线安全带宽类型或实时传输音频,视频和数据时,实时地向接收终端发送音频,视频和数据,从而能够良好地接收音频,视频和数据 优先级控制型Mac层组播传输。