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Mobile station having enhanced standby mode

  • US 6,067,460 A
  • Filed: 04/07/1997
  • Issued: 05/23/2000
  • Est. Priority Date: 05/23/1996
  • Status: Expired due to Term
First Claim
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1. A method for operating a wireless mobile station in a standby mode, comprising the steps of:

  • periodically making received signal strength measurements of a currently assigned digital control channel and at least one other currently non-assigned channel;

    detecting that the mobile station has become stationary when a change over time in the received signal strength of the currently assigned digital control channel falls below a predetermined threshold;

    verifying that the mobile station has become stationary;

    terminating the measurements of the at least one other currently non-assigned channel;

    detecting that the mobile station is no longer stationary when a change over time in the received signal strength of the currently assigned digital control channel rises above the predetermined threshold; and

    initiating the measurements of the at least one other currently non-assigned channel;

    whereinthe step of terminating the measurements of the at least one other currently non-assigned channel is also executed upon an occurrence of a detection by the mobile station that a cell serving the mobile station is a predetermined cell.

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