Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-05-30
2006-05-30
Nguyen, Chau (Department: 2661)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S401000
Reexamination Certificate
active
07054297
ABSTRACT:
A communications system includes base transceiver stations providing wireless services for mobile units. The system further includes a packet network coupling the stations to a gateway. To distribute information received for communication to a mobile unit, the gateway may encapsulate the information as a multicast packet addressed to a multicast address. This multicast address corresponds to a multicast group associated with the mobile unit. The packet network distributes copies of the multicast packet to a group of stations that are registered for the multicast group. These stations may then communicate information from the multicast packet to the mobile unit using wireless communications techniques.
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Baker & Botts L.L.P.
Cisco Technology Inc.
Nguyen Chau
Pizarro Ricardo
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