Method of WCDMA coverage based handover triggering

Method of WCDMA coverage based handover triggering

  • CN 1,586,089 B
  • Filed: 05/15/2002
  • Issued: 04/03/2013
  • Est. Priority Date: 06/06/2001
  • Status: Active Grant
First Claim
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1. method that in the telecommunications network of a plurality of base stations with a plurality of Virtual network operators operations that one or more frequency carrier are arranged by each, triggers handover event, wherein can be on corresponding up link and down link with the mode of frequency division duplexing of the portable terminal of one or more base station communications of telecommunications network in use described handover event, this switching is so that portable terminal can move to from the radio coverage area of first frequency carrier the radio coverage area of second frequency carrier, keep and one or more base station communications simultaneously, wherein carry out described handover event based on the measurement of signal strength signal intensity and/or signal quality, described method is characterised in that:

  • Obtain first signal of expression trigger parameter;

    Determine from first signal whether trigger parameter satisfies the trigger condition about reference value, depends on the residing environment of portable terminal, and this trigger condition comprises through-put power, the through-put power in the up link or the signal to noise ratio in the down link;

    When trigger parameter satisfies described trigger condition, provide second signal to be used for the commencing signal ionization meter to described portable terminal;

    For described portable terminal provides a neighbor list so that based on the signal strength measurement to candidate cell of this neighbor list;

    Obtain the identification code of best candidate cell;

    AndSubsequently a switching command is sent to described portable terminal.

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