Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1998-07-17
2000-08-15
Olms, Douglas W.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370320, 370342, 370432, H04J 1300
Patent
active
061047090
ABSTRACT:
Remote units (113-117) that wish to receive a multicast session, monitor a multicast advertisement message on a system broadcast channel to determine a session to receive. Once a remote unit (113-117) requests participation in the multicast event, a common supplemental channel (205) is assigned to the remote unit (113-117), and the multicast session is broadcast to all remote units (113-117) currently participating in the multicast event. The common supplemental channel (205) utilizes two unique spreading codes for channel assignment, with one of the spreading codes being a function of the multicast session address (501) that is broadcast by the server (120).
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Felix Kenneth A.
Rinchiuso Joseph
Haas Kenneth A.
Hom Shick
Motorola Inc.
Olms Douglas W.
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