TRANSMITTER/RECEIVER WITH MULTIBEAM ANTENNA, TRANSMISSION METHOD, AND TRANSMISSION/RECEPTION BEAM SELECTING METHOD

Japanese Patent JP3956739

B2

PROBLEM TO BE SOLVED: To select the optimum transmission beam, even in a multipath environment.
SOLUTION: The device comprises: an antenna 1 radio receiving section 1031 - an antenna N radio receiving section 103N; reception beam 1 forming section 1041 - reception beam M forming section 104M; user 1 demodulating block 1051 - user L demodulating block 105L; user 1 modulating processing section 1111 - user L modulating processing section 111L; user 1 transmission beam switching section 1121 - user L transmission beam switching section 112L; transmission beam 1 forming section 1131 - transmission beam J forming section 113J; and antenna 1 radio transmission section 1141 - antenna K radio transmission section 114K. The block 1051 - block 105L comprises; a reception beam 1 path detecting section 1061 - a reception beam M path detecting section 106M; path delay/reception beam selecting section 107; reception beam 1 calculation processing section 1081 - reception beam M calculation processing section 108M; reception beam selecting section 109; and demodulation processing section 110.

WO/2020/159172	BEAM FAILURE REPORTING METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND TERMINAL AND BASE STATION SUPPORTING SAME
WO/2020/014627	MULTI-BEAM ANTENNA SYSTEM WITH A BASEBAND DIGITAL SIGNAL PROCESSOR
JP5547771	A base station device, a wireless communication method, and a radio communications system

Yasushi Maruta

JP2002088967A

August 08, 2007

March 27, 2002

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NEC

H04B7/06; H01Q3/26; H01Q25/00; H04B7/04; H04B7/08; H04J99/00; (IPC1-7): H04B7/06; H01Q3/26; H01Q25/00; H04J15/00

JP541607A
JP10285092A
JP2001251233A

Masahiko Desk
Naoki Shimosaka
Yasuhisa Tanizawa

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