Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2006-04-25
2006-04-25
Trinh, Sonny (Department: 2687)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S519000, C455S517000, C455S520000, C455S418000, C455S422100, C370S312000, C370S432000, C370S310200, C370S338000
Reexamination Certificate
active
07035657
ABSTRACT:
A method and apparatus for delivering media to a group of target communication devices provides for multicasting media to the group of target communication devices to save network resources. The disclosed embodiments provide for a significant reduction in network traffic and media processing time by transmitting media in multicast transport mode, where a single copy of the media destined for a group of target recipients is transmitted to a wireless infrastructure over the multicast path. The wireless infrastructure replicates and transmits one copy of the media to each of the target recipients that are assigned to dedicated channels, but multicasts one copy of the media to the target recipients that are assigned to a shared channel.
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Chen An Mei
Rosen Eric C.
Ciccozzi John L.
Nguyen Khai
O'Connell Robert J.
Wadsworth Philip R.
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