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Slotted idle mode for dual mode subscriber stations

  • US 6,434,376 B1
  • Filed: 02/12/1999
  • Issued: 08/13/2002
  • Est. Priority Date: 02/12/1999
  • Status: Expired due to Term
First Claim
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1. A method for reducing average idle current in a handset receiving forward control channel data, said forward control channel data comprising a plurality of data words, each forward control channel word comprising a dotting sequence and a sync word, said method comprising the steps of:

  • receiving a first word of the forward control channel data;

    determining whether the first word of the forward control channel data comprises a control filler message;

    powering down a predetermined component of the handset for a predetermined period of time based on the results of said determining step;

    receiving a second word of the forward control channel data;

    judging whether the first word and second word of the forward control channel are identical;

    performing a decoding operation on the two forward control channel data words;

    erasing said dotting sequence and sync word of a selected forward control channel word if and only if a prior sync word of a prior forward control channel word is successfully decoded; and

    powering down a predetermined component of the handset for a predetermined period of time based on the results of said judging step and said performing step.

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