Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2007-09-04
2007-09-04
Pham, Chi (Department: 2616)
Multiplex communications
Communication over free space
Repeater
C370S320000, C370S328000, C370S335000, C370S342000, C370S441000, C455S522000, C455S439000
Reexamination Certificate
active
10169902
ABSTRACT:
Error detection section109carries out error detection using demodulated data and outputs an error rate to SIR versus error rate estimation section110. SIR versus error rate estimation section110estimates an SIR versus error rate and outputs the result of decision as to whether the correction of the target SIR value is necessary or not to target SIR correction section111. Target SIR correction section111corrects the target SIR value based on the decision result. The information on the demodulation capability of a BTS is output to G parameter control section112and G parameter control section112determines an optimal gain factor. A G parameter indicating the determined gain factor is output to multiplexing section107of the BTS. The G parameter is output to SIR versus error rate estimation section110. This makes it possible to perform communications with an optimal gain factor and target SIR during diversity handover between base stations with and without an interference canceller or between base stations with interference cancellers of different capabilities.
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K. Okawa, et al.; “Effect of Interference Rejection Weight Control on Parallel-type Coherent Multistage Interference Canceller with Iterative Channel Estimation”, Technical Report of IEICE, with English Abstract.
Hiramatsu Katsuhiko
Miya Kazuyuki
Miyoshi Ken'ichi
Abelson Ronald
Pham Chi
Stevens Davis Miller & Mosher LLP
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