×

System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel

  • US 7,333,556 B2
  • Filed: 03/30/2004
  • Issued: 02/19/2008
  • Est. Priority Date: 01/12/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of selecting a data rate of a multicarrier communication channel comprising a plurality of individual orthogonal subcarriers, the method comprising:

  • calculating signal to noise ratios (SNRs) for the individual subcarriers of the multicarrier communication channel from channel state information and a transmit power level;

    calculating a subcarrier capacity for the individual subcarriers from the SNRs;

    estimating a throughput for the multicarrier communication channel for each of a plurality of data rates from a sum of the individual subcarrier capacities and a predicted packet error ratio (PER) for each of the data rates; and

    selecting one of the data rates based on the estimated throughputs,wherein for a subsequent transmission, the individual subcarriers are to have a uniform modulation and code rate based on the selected data rate.

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