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Method for dynamically allocating radio channels among fixed radio stations of a radio system in case of transmission line failure between a fixed station and a control center of the radio system

  • US 5,437,056 A
  • Filed: 06/03/1993
  • Issued: 07/25/1995
  • Est. Priority Date: 10/03/1991
  • Status: Expired due to Fees
First Claim
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1. A radio channel allocation method for a radio system comprising several fixed radio stations located apart from each other in a geographical area covered by the radio system, remote radio stations, and a control center for dynamically allocating radio channels to the fixed radio stations from a predetermined pool of radio channels independently for each call, said method comprising:

  • assigning specific fallback channels of said predetermined pool of radio channels to each fixed radio station;

    dynamically allocating radio channels to the fixed radio stations from said predetermined pool of radio channels independently for each call;

    detecting at one of the fixed stations a line failure in the transmission line between the fixed station and the control center;

    allocating, in response to said detecting of line failure, at said one of the fixed stations only said specific fallback radio channels assigned to said one of the fixed stations in advance from said pool of radio channels;

    detecting at the control center a line failure in the transmission line between the control center and said one of the fixed stations; and

    removing, in response to said line failure, said specific fallback radio channels assigned at the control center in advance to said one of the fixed stations from said pool of radio channels.

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