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Method and apparatus for call recovery in a wireless communication system

  • US 7,945,266 B2
  • Filed: 12/15/2000
  • Issued: 05/17/2011
  • Est. Priority Date: 12/05/2000
  • Status: Expired due to Fees
First Claim
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1. A method for call recovery by a wireless mobile station, comprising:

  • communicating with base stations in an active set of the mobile station;

    determining if a call recovery trigger has occurred;

    if the call recovery trigger has occurred, determining if a transmitter of the mobile station is enabled;

    if the transmitter of the mobile station is enabled, disabling the transmitter based on a trigger condition;

    starting a recovery timer after an expiration of a wait timer;

    enabling the transmitter of the mobile station; and

    after enabling the transmitter of the mobile station, transmitting a call recovery preamble for a predetermined time period after the expiration of the wait timer, the call recovery preamble being exclusive of and adjacent to a pilot strength measurement message and transmission of the call recovery preamble terminates before transmission of the pilot strength measurement message.

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