Robust multiple chain receiver
First Claim
1. An apparatus, comprising:
- a receiver adapted to receive a plurality of transmission signals traveling through corresponding transmission channels;
and detect whether the received transmission signals are dominated by one of noise and interference; and
wherein if the received transmission signals are dominated by noise, the receiver selects a first set of weights as a receiver weighting and if the received transmission signals are dominated by interference, the receiver selects a second set of weights as the receiver weighting and estimates the received transmission signals based upon the selected receiver weighting.
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Accused Products
Abstract
The present invention provides a method and system for receiving a plurality of transmission signals at a receiver, the transmission signals each traveling through a corresponding transmission channel. The receiver includes a plurality of receiver channels, a receiver channel corresponding to each transmission channel. Each receiver channel receives a corresponding transmission signal. The received transmission signals are detected to determine whether the received transmission signals are dominated by noise or interference. If the received transmission signals are dominated by noise, then a first set of weights are selected as a receiver weighting. If the received transmission signals are dominated by interference, then a second set of weights are selected as the receiver weighting. The received transmission signals are estimated based upon the receiver weighting. Detecting whether the received transmission signals are dominated by noise or interference includes determining a level of correlation between the received transmission signals. Detecting whether the received transmission signals are dominated by noise or interference can be determined during a time slot of nulled transmission signals. If the transmission signals are multiple carrier signals, then detecting whether the received transmission signals are dominated by noise or interference can be determined during a frequency and time slot of a nulled carrier of the transmission signals. The first set of weights can be based upon a first covariance matrix, wherein the first covariance matrix represents received noise and interference covariance. The second set of weights can be based upon the second covariance matrix, wherein the second covariance matrix represents interference covariance. The first set of weights and the second set of weights can also be used for transmission mode selection and receiver soft decoding.
92 Citations
26 Claims
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1. An apparatus, comprising:
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a receiver adapted to receive a plurality of transmission signals traveling through corresponding transmission channels; and detect whether the received transmission signals are dominated by one of noise and interference; and wherein if the received transmission signals are dominated by noise, the receiver selects a first set of weights as a receiver weighting and if the received transmission signals are dominated by interference, the receiver selects a second set of weights as the receiver weighting and estimates the received transmission signals based upon the selected receiver weighting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system, comprising:
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a transmitter; a multiple channel receiver in communication with said transmitter and adapted to receive a plurality of transmission signals; the receiver comprising; means for detecting whether the received transmission signals are dominated by one of noise and interference; means for selecting a first set of weights as a receiver weighting if the received transmission signals are dominated by noise; means for selecting a second set of weights as the receiver weighting if the received transmission signals are dominated by interference; and means for estimating the received transmission signals based upon the selected receiver weighting. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification