マルチビームＣＳＩ報告

Japanese Patent JP6980024

B2

Systems and methods for multi-beam Channel State Information (CSI) reporting are provided. In some embodiments, a method of operation of a second node connected to a first node in a wireless communication network for reporting multi-beam CSI includes reporting a rank indicator and a beam count indicator in a first transmission to the first node. The method also includes reporting a cophasing indicator in a second transmission to the first node. The cophasing indicator identifies a selected entry of a codebook of cophasing coefficients where the number of bits in the cophasing indicator is identified by at least one of the beam count indicator and the rank indicator. In this way, feedback for both a rank indicator and a beam count indicator may be possible which may allow robust feedback and variably sized cophasing and beam index indicators.

WO/2022/027631	HIERARCHICAL CHANNEL STATE INFORMATION (CSI) FEEDBACK WITH PARTIAL RECIPROCITY IN A NETWORK
WO/2022/075745	POWER CONTROL METHOD AND DEVICE
WO/2017/112495	USING MULTI-FEED ANTENNAS

Faxer, sebastian
Gao, Seaway
Harrison, Robert Mark
Murganasan, Shiva

JP2019542463A

December 15, 2021

December 21, 2017

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Telefon Acty Bora Get Erm Ericson (Pubble)

H04B7/0417; H04B7/0413; H04B7/0456; H04B7/06; H04W16/28; H04W24/10

JP2012100254A

Samsung,Codebook design framework for NR MIMO[online],3GPP TSG RAN WG1 #87 R1-1612504,Internet,2016年11月04日
Beijing Xinwei Telecom Techn.,Further Discussion of CSI Report for FD-MIMO[online], 3GPP TSG-RAN WG1#83 R1-156496,インターネット,2015年11月06日

Patent Business Corporation Otsuka International Patent Office
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Mioko Watanabe

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