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Interference cancellation in variable codelength systems for multi-access communication

  • US 7,697,595 B2
  • Filed: 05/11/2006
  • Issued: 04/13/2010
  • Est. Priority Date: 05/11/2006
  • Status: Active Grant
First Claim
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1. A receiver, configured for cancelling interference effects of at least one high-rate subchannel at a low rate in a multi-rate communication system, the receiver comprising:

  • an analysis module configured for calculating at least one low-rate symbol estimate from at least one low-rate descendant subchannel of the at least one high-rate subchannel in a received signal, andan interference canceller configured for processing the at least one low-rate symbol estimate with the received signal to cancel interference contributed by the at least one high-rate subchannel,wherein the analysis module is configured to sample the at least one high-rate subchannel to ensure that amplitudes of the received signal do not change significantly over a predetermined time interval.

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