Oam multiplexing communication system and inter-mode interference elimination method

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United States of America Patent

PATENT NO 11811143
APP PUB NO 20210021053A1
SERIAL NO

17043133

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An OAM multiplexing communication system uses one or more OAM modes and multiplexes signals of one or more sequences for each OAM mode. A transmitting station includes a transmitting antenna using an M-UCA, and an OAM mode generation unit that simultaneously generates one or more OAM modes from each UCA. A receiving station includes a receiving antenna equivalent to the M-UCA, an OAM mode separation unit that separates signals received by each UCA for each OAM mode, and a received signal processing unit that estimates channel information for each OAM mode and performs an equalization process for each OAM mode by using a receiving weight calculated from the channel information. The received signal processing unit is configured to estimate, for each OAM mode, channel information of another OAM mode causing interference and calculate the receiving weight of a subject OAM mode by using the channel information of the subject OAM mode and said another OAM mode.

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Patent Owner(s)

  • NEC CORPORATION AND NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukumoto, Hiroyuki Yokosuka, JP 31 47
Lee, Doohwan Yokosuka, JP 52 124
Sasaki, Hirofumi Yokosuka, JP 81 345
Shiba, Hiroyuki Yokosuka, JP 18 44

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