Multichannel CDMA subtractive interference cancellation method employed by a remote unit
First Claim
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1. A method employed by a remote unit for recovering data transmitted over a plurality of channels employing a wireless code division multiple access communication technique, comprising:
- a) receiving the plurality of channels as a received signal, each channel associated with a code;
b) subtracting for each of the plurality of channels others of the plurality of channels from the received signal; and
c) despreading a result of that subtraction as data for that channel.
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Abstract
A method employed by a remote unit wherein a plurality of channels are received as a received signal. Each channel is associated with a code. For each of the plurality of channels, others of the plurality of channels are subtracted from the received signal and a result of that subtracting is despread as data for that channel.
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Citations
9 Claims
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1. A method employed by a remote unit for recovering data transmitted over a plurality of channels employing a wireless code division multiple access communication technique, comprising:
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a) receiving the plurality of channels as a received signal, each channel associated with a code;
b) subtracting for each of the plurality of channels others of the plurality of channels from the received signal; and
c) despreading a result of that subtraction as data for that channel. - View Dependent Claims (2, 3, 4, 5, 6)
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- 7. The method of claim I wherein steps (a) through (c) are repeated employing the despread result obtained during initial performance of steps (a) through (c).
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9. A method employed by a remote unit for recovering data transmitted over a plurality of channels employing wireless code division multiple access communication, comprising:
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a) despreading a spread spectrum signal employing a detector for generating despread, spread spectrum outputs for each channel;
b) receiving the plurality of channels as a received signal, each channel being associated with a code; and
c) subtracting for each of the plurality of channels others of the plurality of channels from the received signal and despreading a result of that subtraction as data for that channel.
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Specification