Method for interference source identification

Method for interference source identification

  • CN 1,618,247 A
  • Filed: 01/25/2002
  • Published: 05/18/2005
  • Est. Priority Date: 01/25/2002
  • Status: Active Application
First Claim
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1. in mobile radio telephone network, discern the method for interference source, wherein received signal r is made of the signal of wanting and a plurality of interference signal, having one in described a plurality of interference signals is main interference signal, and all signals comprise known training sequence (TK1, TK2, ...), by estimating carrier wave and from described received signal (r), deducting this carrier wave, form residual interference signal (s), with described interference signal (s) and known training sequence (TKj, j=0,1,2, ..., 7) be correlated with, obtain the relevant training sequence of determined and described interference signalIt is characterized in thatFrom described definite training sequence, find the identification code (BCC) of possible interference source (BS1);

  • From described identification code (BCC) and be subjected to interfering frequency determine to correspond respectively to a plurality of candidates of specific cell (CA1, CA2 ...);

    The frequency of using for described candidate determine time migration (t1, t2 ... Fig.

         7);

    (whether fa fb...) has the time migration (t0) identical with described interference signal, and the result has the optimum Match skew on its frequency at least one candidate (CA3) is identified as interference source to investigate wherein one or more frequencies.

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