H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/30 (2006.01) H04B 1/12 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2311906
The base station system includes a cancellation processor connected to a plurality of conventional signal processors. Under the control of a controller, the signal processors acquire user signals in signals received by the base station antennas. The controller controls the cancellation processor to perform cancellation operations with respect to the acquired user signals. The cancellation processor includes first-nth filter stages. Each filter stage operates in the same manner. A filter stage obtains, in parallel, the acquired user signals from signals supplied thereto by estimating symbols in the acquired user signals under the control of the controller. The cancellation processor also includes a cancellation stage associated with each filter stage. Each cancellation stage cancels, in parallel, the obtained user signals output from the associated filter stage from the signals received by the base station antennas. The resulting residual signals output from a cancellation stage are supplied to the next filter stage, and the signals supplied to the first filter stage are the signals received by the base station antennas. A cancellation stage cancels the obtained user signals received thereby from the received signals at a substantially same time with respect to the received signals.
Buehrer R. Michael
Hahm Mark David
Liu Shang-Chieh
Nicoloso Steven Peter
Kirby Eades Gale Baker
Lucent Technologies Inc.
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