Method and arrangement for starting extended spectrum radio telephone receiver

Method and arrangement for starting extended spectrum radio telephone receiver

  • CN 1,309,269 C
  • Filed: 05/18/2000
  • Issued: 04/04/2007
  • Est. Priority Date: 05/19/1999
  • Status: Active Grant
First Claim
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1. one kind is used for cutting apart the wireless telephonic device of page mode operations code division multiple access (CDMA) with timeslice, and this device comprises:

  • The searcher receiver is started to find the pilot signal of a proper signal intensity by periodicity, and this searcher receiver is caught the pseudo noise PN sequence timing of this pilot signal after its each periodicity starts;

    At least one is coupled to the demodulation branch road of this searcher receiver;

    Control circuit, after the delay that the each periodicity with respect to this searcher receiver starts, periodically start this at least one demodulation branch road, with after this PN sequence each periodic acquisition regularly, instruct this at least one demodulation branch road with respect to this searcher receiver synchronization, wherein, when the WAKE incident had taken place this radio telephone, other circuit parts in the receiver modulator-demodulator except this searcher receiver and searcher timing unit still kept initial off state;

    AndBe coupled to system'"'"'s timing unit of this at least one demodulation branch road, this control circuit is after each periodicity of this searcher receiver starts, periodically start this system'"'"'s timing unit, after each periodic synchronousization of this at least one demodulation branch road, this control circuit instructs this system'"'"'s timing unit with respect to the regularly synchronization of the PN sequence of this pilot signal.

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