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Radio channel selection method and system

  • US 5,533,024 A
  • Filed: 03/08/1995
  • Issued: 07/02/1996
  • Est. Priority Date: 03/08/1994
  • Status: Expired due to Fees
First Claim
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1. A radio channel selection method comprising the steps of:

  • causing a mobile terminal, in an originating operation, to transmit a call setting signal indicating that communication can be performed by either of first and second communication schemes in different communication forms;

    causing a radio base station to receive the call setting signal from said mobile terminal, and checking whether there is any available radio channel in the first communication scheme;

    if there is an available radio channel in the first communication scheme, transmitting information on the found available radio channel, as a radio channel designation signal, to said mobile terminal;

    if there is no available radio channel in the first communication scheme, searching for an available radio channel in the second communication scheme;

    if there is an available radio channel in the second communication scheme, transmitting information on the found available radio channel, as a radio channel designation signal, to said mobile terminal; and

    if there is no available radio channel in both the first and second communication schemes, transmitting a clear-forward signal to said mobile terminal.

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