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    • 3. 发明授权
    • Multicast transmission in a cellular network
    • 蜂窝网络中的组播传输
    • US07606587B2
    • 2009-10-20
    • US10528403
    • 2002-09-20
    • Lin XuJuha-Pekka LuomaSinikka SarkkinenRod Walsh
    • Lin XuJuha-Pekka LuomaSinikka SarkkinenRod Walsh
    • H04B7/00H04M1/663
    • H04W4/06H04W4/08H04W60/00H04W72/005
    • The invention relates to a mechanism for performing multicast transmission in a cellular network. In order to enable establishment of resources only in cells containing members of the multicast group and to avoid congestion on the uplink channel, a multicast service notification is transmitted to mobile stations, thereby informing members of the multicast group of an upcoming multicast session. The moment for a response to said multicast service notification is selected in the mobile stations and a presence report is sent from at least one of said mobile stations at the response moment of said at least one mobile station. The presence report or reports are received within a radio access network, and radio resources are established for multicast transmission in a cell of the cellular network when the presence report(s) received in said cell meet(s) predetermined criteria.
    • 本发明涉及用于在蜂窝网络中执行多播传输的机制。 为了仅在包含多播组的成员的小区中建立资源,并且为了避免上行链路信道的拥塞,将多播服务通知发送到移动台,从而向多播组的成员通知即将到来的多播会话。 在移动台中选择响应于所述多播服务通知的时刻,并且在所述至少一个移动台的响应时刻,从至少一个所述移动站发送存在报告。 在无线电接入网络内接收存在报告或报告,并且当在所述小区中接收到的存在报告满足预定标准时,为蜂窝网络的小区中的多播传输建立无线电资源。
    • 4. 发明授权
    • Method and system for header compression
    • 头压缩的方法和系统
    • US07430617B2
    • 2008-09-30
    • US10739066
    • 2003-12-19
    • Rod WalshJuha-Pekka LuomaAnne Saaranen
    • Rod WalshJuha-Pekka LuomaAnne Saaranen
    • G06F15/16
    • H04L69/04H04L12/1868H04L12/1877H04L12/189H04L69/22
    • A compression context for a plurality of packets is established with a receiving device. Each of these packets is associated with one or more reliable multicast protocols, such as the Layered Coding Transform (LCT) protocol, the Asynchronous Layered Coding (ALC) protocol, the FLUTE protocol, the MUPPET protocol, and the NACK-Oriented Reliable Multicast (NORM) protocol. Upon establishment of the compression context, a compressed packet is generated for one of the plurality of packets and transmitted to the receiving device. The compressed packet has a reduced number of bits in its header. Upon receipt, the receiving device decompresses the compressed packet based on the compression context.
    • 用接收设备建立多个分组的压缩上下文。 这些分组中的每一个与一个或多个可靠的多播协议相关联,例如分层编码变换(LCT)协议,异步分层编码(ALC)协议,FLUTE协议,MUPPET协议和面向NACK的可靠多播( NORM)协议。 在建立压缩上下文时,为多个分组之一生成压缩分组,并发送给接收设备。 压缩包在其头部中具有减少的比特数。 在接收到接收设备时,基于压缩上下文来解压缩压缩的分组。