Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system
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United States of America Patent
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Apr 25, 1995
Grant Date -
N/A
app pub date -
Nov 9, 1993
filing date -
Nov 9, 1993
priority date (Note) -
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Abstract
A method of transmitting signals from a mobile unit to a base station in the reverse link direction using multi-tone techniques includes the step of dividing a frequency band into a plurality of generally even spaced tones. The tones are partitioned into a predetermined number of tone sets which each contain a predetermined number of tones. Each unit within a given sector is assigned a tone set for transmitting information signals. The tones within each tone set are selected so that the modulated signals transmitted by each unit are orthogonal with respect to all other tone sets assigned to units in that sector. Adjacent cells have no more than one tone in common.
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