Code modulation method and system based on APSK constellation mapping

Code modulation method and system based on APSK constellation mapping

  • CN 103,763,298 A
  • Filed: 01/02/2014
  • Published: 04/30/2014
  • Est. Priority Date: 01/02/2014
  • Status: Active Application
First Claim
Patent Images

1. the code modulating method based on APSK constellation mapping, is characterized in that, comprises step:

  • B1;

    information bit to be passed is carried out to chnnel coding and obtain coded-bit;

    B2;

    described coded-bit is carried out to bit mapping and obtain mapped bits;

    B3;

    described mapped bits is carried out to APSK constellation mapping and obtain APSK constellation mapping symbol, and be sent to subsequent treatment unit;

    Described APSK constellation mapping exponent number is M=2 m, be concentric ring-shaped, counting equal and being 2 power side on each ring, be equivalent to one number of rings wherein m 1+ m 2=m, m 1, m 2be positive integer with m, each constellation symbol is obtained by the bit vectors mapping of a long m, wherein m 2individual bit determines the position of ring, and the bit between ring and ring forms gray mappings.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×