Method and apparatus for reducing interference in a wireless communication system
First Claim
1. A method in a wireless communication system, comprising:
- receiving transmissions on a plurality of channels, each of the plurality of channels associated with an error rate;
selecting a channel for application to outer loop power control based on the error rates, wherein the error rate of the selected channel is a function of an interference channel that is non-orthogonal to the selected channel; and
performing outer loop power control based on the selected channel.
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Abstract
Method and apparatus for reducing interference in a wireless communication system when the source of interference is a deterministic component of the system. In one embodiment, the receiver weights the transmitters according to when the source of interference is transmitted. Further, the transmitter may employ power boosting to overcome the source of interference. In one embodiment, a W-CDMA system transmits a sync channel concurrently with physical channels, wherein the sync channel is not orthogonal to the physical channels. The receiver may cancel the sync channel when receiving control or data information. Similarly, the receiver may weight the transmissions from multiple transmitters.
54 Citations
10 Claims
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1. A method in a wireless communication system, comprising:
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receiving transmissions on a plurality of channels, each of the plurality of channels associated with an error rate; selecting a channel for application to outer loop power control based on the error rates, wherein the error rate of the selected channel is a function of an interference channel that is non-orthogonal to the selected channel; and performing outer loop power control based on the selected channel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus in a wireless communication system, comprising:
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means for receiving transmissions on a plurality of channels, each of the plurality of channels associated with an error rate; means for selecting a channel for application to outer loop power control based on the error rates, wherein the error rate of the selected channel is a function of an interference channel that is non-orthogonal to the selected channel; and means for performing outer loop power control based on the selected channel.
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9. A User Equipment in a wireless communication system supporting Wideband-Code Division-Multiple Access (W-CDMA), comprising:
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a receiver for receiving transmissions on a plurality of channels, each of the plurality of channels associated with an error rate; and a processing unit adapted to select a channel for application to outer loop power control based on the error rates, wherein the error rate of the selected channel is a function of an interference channel that is non-orthogonal to the selected channel, and perform outer loop power control based on the selected channel. - View Dependent Claims (10)
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Specification