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Title:
COMMUNICATION SYSTEM, COMMUNICATION DEVICE, TRANSMISSION METHOD, RECEPTION METHOD, AND, COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP2018074464
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent reduction of communication quality by preventing interference of communication between mutually proximate metal lines of multiple communication systems of which the available frequency bands are partially overlapped, in accordance with a simple method.SOLUTION: The present invention relates to a communication system to be used for a time division duplexing communication system that may coexist with a frequency division duplexing communication system. The communication system comprises: a basic communication part which uses a second frequency band partially overlapped with a first frequency band to be used for frequency division duplexing and wider than the first frequency band and communicates in accordance with a signal to which multicarrier modulation is applied; and a band limit part which allocates dummy data to a subcarrier within a range of the first frequency band in the case of transmission when interference of communication in the first frequency band is estimated with the frequency division duplexing communication system, allocates data that should be originally communicated to the other subcarriers, and prevents a signal of a subcarrier on which the dummy data are allocated from going out on a metal line by a filter.SELECTED DRAWING: Figure 5

Inventors:
KATSURA ISAO
Application Number:
JP2016214262A
Publication Date:
May 10, 2018
Filing Date:
November 01, 2016
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H04B3/32; H04J4/00
Attorney, Agent or Firm:
特許業務法人サンクレスト国際特許事務所