Radio communication system and multicast communication method

Details Radio communication system and multicast communication method Radio communication system and multicast communication method

2007-01-09

2007-01-09

Ngo, Ricky Q. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S473000, C370S535000, C370S466000, C370S474000

Reexamination Certificate

active

10069004

ABSTRACT:
In a base station apparatus102,when an IGMP control message is contained in a variable-length packet in which is indicated the destination for performing communication in one-to-one or one-to-multiple mode with mobile station apparatuses106-1through106-3,the IGMP control message is mapped onto a fixed-length short packet that is shorter than a fixed-length packet used in communication with mobile station apparatuses106-1through106-3,and also, a variable-length packet is mapped onto a fixed-length packet and a frame signal is composed from this fixed-length packet and the short packet, and is transmitted. In mobile station apparatuses106-1through106-3,the frame signal is decomposed and the variable-length packet and short packet are extracted, the IGMP control message is extracted from the short packet and mapped onto another variable-length packet, and both variable-length packets are multiplexed.

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