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    • 4. 发明申请
    • MULTICAST TRANSMISSION IN A CELLULAR NETWORK
    • 细胞网络中的多播传输
    • WO2004028179A1
    • 2004-04-01
    • PCT/FI2002/000753
    • 2002-09-20
    • NOKIA CORPORATIONXU, LinLUOMA, Juha-PekkaSARKKINEN, SinikkaWALSH, Rod
    • XU, LinLUOMA, Juha-PekkaSARKKINEN, SinikkaWALSH, Rod
    • H04Q7/22
    • 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,向移动台发送组播业务通知,从而向组播组的成员通知即将到来的组播会话。 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。