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Compensating for noise in a wireless communication system

  • US 20070109995A1
  • Filed: 10/23/2006
  • Published: 05/17/2007
  • Est. Priority Date: 10/30/1998
  • Status: Active Grant
First Claim
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1. A base station that can receive signal bursts transmitted on an uplink channel of a wireless communication system, the base station comprising:

  • a demodulator for receiving the signal bursts on the uplink channel;

    a media access controller (MAC) that generates for downlink transmission MAP messages that assign time slots in which subscriber stations may transmit signal bursts on the uplink channel, the MAP messages including idle slots that are assigned to no subscriber stations;

    a transmitter that transmits the MAP messages with the idle slots to the subscriber stations; and

    an adaptive notch filter connected to the demodulator, wherein coefficients of the adaptive notch filter are adjusted to suppress noise on the uplink channel sensed during the idle slots.

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