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Apparatus and method for use in the multicast of traffic data in wireless multiple access communications systems

  • US 6,804,528 B1
  • Filed: 11/03/2000
  • Issued: 10/12/2004
  • Est. Priority Date: 11/03/2000
  • Status: Expired due to Term
First Claim
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1. A method for use in a wireless multiple access communications system including at least one base station and a plurality of wireless terminals to transmit multicast traffic data in a resource channel comprising the steps of:

  • transmitting a multicast paging message, including a multicast group wireless terminal identifier, in a common control channel in said resource channel and associated with a traffic channel destined for a group of wireless terminals intended to receive said multicast traffic data;

    generating said resource channel so it is defined by a bandwidth and time interval, and includes said traffic channel and an assignment channel, said traffic channel being comprised of a plurality of traffic segments and said assignment channel being said common control channel and being comprised of a plurality of assignments segments;

    selecting each of said traffic segments from a first set of predetermined waveforms in a predetermined time interval;

    selecting each of said assignment segments from a second set of predetermined waveforms in a predetermined time interval;

    said traffic channel and said assignment channel each being generated as a separate channel in said channel resource so that there is a one-to-one association between said traffic segments of said traffic channel and individual ones of said assignment segments of said assignment channel; and

    said step of transmitting including steps of transmitting either multicast traffic data in one or more of said plurality of traffic segments of said traffic channel and a multicast paging message including a multicast group wireless terminal identifier in an associated assignment segment of said assignment channel in said corresponding channel resource destined for a group of wireless terminals intended to receive said multicast traffic data, or point-to-point traffic data in one or more of said plurality of traffic segments of said traffic channel and a wireless terminal identifier in an associated assignment segment of said assignment channel, in said corresponding channel resource destined for a particular wireless terminal intended to receive said point-to-point traffic data.

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