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Control channel selecting method for mobile stations

  • US 5,408,684 A
  • Filed: 09/01/1993
  • Issued: 04/18/1995
  • Est. Priority Date: 09/21/1992
  • Status: Expired due to Term
First Claim
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1. A control channel selecting method in a mobile radio communication system, in which a service area includes a plurality of radio zones each having at least one base station and is assigned a set of at least one communication channel and at least one control channel, and a mobile station in an arbitrary one of said radio zones is receiving a current control channel and is connected to a communication network via said base station of said arbitrary radio zone, said method comprising the steps of:

  • (1) selecting control channel candidates;

    (2) checking said selected control channel candidates to determine whether or not the reception of a control signal is possible in each of said selected control channel candidates;

    (3) when it was decided in said step (2) that the reception of said control signal would be impossible, the number of control signal reception failures in the corresponding control channel candidate is incremented by 1;

    (4) repeating said steps (2) and (3) and when said number of control signal reception failures corresponding to any one of said control channel candidates reaches a predetermined positive integer M, the corresponding control channel candidate is excluded from said selected control channel candidates; and

    (5) when it was decided in said step (2) that the reception of said control signal would be possible, the corresponding channel candidate is selected as a new control channel to be used for awaiting a call.

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