组播通信有效地节约了网络资源，在无线移动网络环境中引入组播有着非常重要的意义。
Multicast conserves the network resources efficiently, it is significant to provide multicast mechanism in wireless mobile environment.
该策略利用无线信道的广播特性，能提高网络吞吐率、节约无线网络资源。
This scheme makes use of the broadcast nature of wireless channel, which can provide higher throughput and decrease the waste network resources.
本发明有效地减少了冗余短信的发送，节约 了网络资源，并且提高了短信的传送效率。
The method, the device and the system effectively reduce the transmissions of redundant short messages, save network resources and improve the transmission efficiency of the short messages.
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