Patent ID: 6075813
Filing Date: 2000-06-13
Classification: H04H,H04J,H04L

Abstract:
Apparatus for communicating over a frequency band first information and second information during an interval, said frequency band having a first end and a second end, said first information being represented by a signal occupying said frequency band, comprising:a controller for selecting, in a predetermined order, a plurality of carriers within the frequency band to become members of at least one carrier group, the carrier group being disposed closer to the first end than the second end of the frequency band, a first carrier in the carrier group being disposed closer to the first end of the frequency band than a second carrier in the carrier group, said first carrier being selected earlier than said second carrier to become a member in the carrier group during said interval in accordance with the predetermined order, the plurality of carriers being modified based on said second information;a precanceler responsive to said signal for adjusting said modified carriers; anda transmitter for simultaneously transmitting said signal and the adjusted, modified carriers over said frequency band, said modified carriers being adjusted to reduce effects of said signal on said adjusted, modified carriers when said signal and said adjusted, modified carriers are simultaneously transmitted.