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Efficient signaling over access channel

DC
  • US 9,137,822 B2
  • Filed: 12/22/2004
  • Issued: 09/15/2015
  • Est. Priority Date: 07/21/2004
  • Status: Active Grant
First Claim
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1. In a wireless communication system, a method of determining an indicator of channel quality, the method comprising:

  • determining a metric of forward link geometry as a function of an observed transmission, wherein said observed transmission is selected from a group consisting of pilot signals, noise, and traffic on data channels, or any combination thereof;

    determining an estimate of channel quality based on at least the metric of the forward link geometry; and

    selecting an access sequence, randomly, from one group of a plurality of groups of access sequences,wherein the plurality of groups of access sequences correspond to different ranges of channel quality values, wherein a quantity of access sequences in the plurality of groups of access sequences are distributed non-uniformly, and the selected access sequence is from the group of the plurality of groups corresponding to the determined estimate of channel quality, the access sequences in the plurality of groups of access sequences are distributed in proportion to a number of access terminals requiring a given amount of power needed to send an indicator of acknowledgment to an access terminal.

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