US Patent Application 18198500. COMMUNICATION SYSTEM AND COMMUNICATION METHOD simplified abstract

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COMMUNICATION SYSTEM AND COMMUNICATION METHOD

Organization Name

NEC Corporation

Inventor(s)

Osamu Hasegawa of Tokyo (JP)

COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A simplified explanation of the abstract

This abstract first appeared for US patent application 18198500 titled 'COMMUNICATION SYSTEM AND COMMUNICATION METHOD

Simplified Explanation

- The patent describes a communication system where a hub station and multiple terminal stations can communicate simultaneously using the same channel. - The hub station generates a transmission signal and a cancellation signal, combines them, and transmits the combined signal. - An adaptive filter is used to minimize the power of an error signal with respect to a known signal. - The terminal station calculates the error signal, generates a known signal for the interfering terminal station, calculates a correction amount for a filter coefficient, and transmits the correction amount. - The hub station calculates the filter coefficient based on the correction amount, and generates the cancellation signal by filtering the signal to be transmitted to the other terminal stations. - The innovation allows for efficient communication between the hub station and multiple terminal stations by canceling out interference signals.


Original Abstract Submitted

A communication system in which a hub station and multiple terminal stations communicate at the same time using the same channel The hub station generates a transmission signal, generates a cancellation signal combines the transmission signal regarding the transmission signal and the cancellation signal, transmits the combined signal, and calculates an adaptive filter minimizing a power of an error signal with respect to the known signal. The terminal station calculates the error signal, generates the known signal for a terminal station causing interference in the interference signal, calculates a correction amount of a filter coefficient in the adaptive filter, and transmits the correction amount. The hub station calculates an adaptive filter calculates the filter coefficient based on the correction amount, and generates the cancellation signal by performing a filtering process using the adaptive filter on the signal to be transmitted to the other of the terminal stations.