| 摘要 |
An object of the present invention is to alleviate delays of distribution of membership request that are needed in distribution of multicast data. In order that distribution of membership reports, which has been executed via a multicast router, can be executed by a wireless base station, a wireless mobile device extracts information relating to a membership report from an IP packet transmitted from a client, generates tag information on the basis of the information extracted, and places the tag information on a wireless control channel of a wireless frame. Furthermore, the wireless mobile device places the IP packet on a traffic channel of the wireless frame, and sends the wireless frame including the tag information and the IP packet to the wireless base station.
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