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Apparatus and associated method, by which to transmit beacon signals in a radio communication system

  • US 6,717,926 B1
  • Filed: 09/13/1999
  • Issued: 04/06/2004
  • Est. Priority Date: 09/13/1999
  • Status: Expired due to Term
First Claim
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1. In a radio communication system having a network infrastructure with which a first mobile station and at least a second mobile station communicate data, the data to be communicated between the network infrastructure and the first mobile station selected to be communicated at a first communication-data data rate and the data to be communicated between the network infrastructure and the second mobile station selected to be communicated at a second communication-data data rate, wherein the communications occur in either a random-access period during which any mobile station may transmit, or in a polled-access period in which only polled mobile stations may transmit, an improvement of apparatus for facilitating communication of the data, said apparatus comprising:

  • a beacon signal generator coupled to receive indications of the first communication-data data rate and the second communication-data data rate, said beacon signal generator for generating a first beacon signal and at least a second beacon signal within a selected time during the polled-access period;

    wherein the first beacon signal generated at a beacon-signal data rate at least as low as a lowest of the first communication-data data rate and the second communication-data data rate such that the first beacon signal is detectable by each of the mobile stations for which the beacon signal generator has received data-rate indications;

    and wherein the second beacon signal generated at a rate corresponding to a highest of the first communication-data data rate and the at least second communication-data data rate.

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