×

Digital communication system having improved pilot encoding

  • US 20040120304A1
  • Filed: 12/19/2002
  • Published: 06/24/2004
  • Est. Priority Date: 12/19/2002
  • Status: Active Grant
First Claim
Patent Images

1. A digital time division multiple access communication system comprising:

  • a time slot comprising four quadrature amplitude modulation sub-channels of pre-selected time duration;

    a plurality of sync, pilot and data symbols in respective sync, pilot and data symbol positions of each sub-channel, with the pilot symbols arranged in a pre-selected pilot symbol format;

    said data symbols modulated according to a pre-selected order of modulation; and

    a plurality of dual purpose symbols in respective pilot symbol positions of said pilot symbol format and modulated with an order of modulation less than that of said data symbols.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×