Scramble code generator in mobile communication system

Scramble code generator in mobile communication system

  • CN 1,496,039 A
  • Filed: 07/07/2000
  • Published: 05/12/2004
  • Est. Priority Date: 07/07/1999
  • Status: Abandoned Application
First Claim
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1. scrambling code generator comprises:

  • The one m-sequencer (1050) is used to adopt a plurality of first shift register value a that have iShift register produce a m-sequence, wherein, i=0 to c-1, and the sum of c=register;

    The 2nd m-sequencer (1060) is used to adopt a plurality of second shift register value b that have iShift register produce the 2nd m-sequence, wherein, i=0 to c-1, and the sum of c=register;

    First masked portion (1000) is used to adopt the first mask value k iFShelter the first shift register value a i, to produce the 3rd m-sequence, wherein, i=0 to c-1;

    With Second masked portion (1005) is used to adopt the second mask value k iSShelter the first shift register value a i, to produce the 4th m-sequence, wherein, i=0 to c-1;

    First adder (1032) is used for the 3rd m-sequence and the 2nd m-sequence addition, to produce main scrambling code;

    Second adder (1034) is used for the 4th m-sequence and the 2nd m-sequence addition, producing secondary scrambling code,Wherein, first masked portion is applicable to m-sequence displacement ((K-1) * M+K-1) inferior, to produce K master'"'"'s scrambling code, wherein, M be each main scrambling code secondary scrambling code sum andSecond masked portion is applicable to m-sequence displacement manyed L time than the shift value of masking steps for the first time, with the L time grade of scrambling code of K master'"'"'s scrambling code of producing the first adder generation.

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