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1. WO2019047965 - CODEBOOK SUBSET RESTRICTION DESIGN FOR MIMO

Publication Number WO/2019/047965
Publication Date 14.03.2019
International Application No. PCT/CN2018/104994
International Filing Date 11.09.2018
IPC
H04B 7/04 2017.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
CPC
H04B 7/0478
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
0478Special codebook structures directed to feedback optimization
H04B 7/0639
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0619using feedback from receiving side
0636Feedback format
0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
  • WU, Liangming [CN]/[CN] (US)
  • ZHANG, Yu [CN]/[CN] (US)
  • HAO, Chenxi [CN]/[CN] (US)
  • WEI, Chao [CN]/[CN] (US)
  • CHEN, Wanshi [CN]/[US] (US)
  • XU, Hao [US]/[CN] (US)
Inventors
  • WU, Liangming
  • ZHANG, Yu
  • HAO, Chenxi
  • WEI, Chao
  • CHEN, Wanshi
  • XU, Hao
Agents
  • NTD PATENT & TRADEMARK AGENCY LTD.
Priority Data
PCT/CN2017/10130111.09.2017CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CODEBOOK SUBSET RESTRICTION DESIGN FOR MIMO
(FR) CONCEPTION DE RESTRICTION DE SOUS-ENSEMBLE DE LIVRE DE CODES POUR MIMO
Abstract
(EN)
Aspects of the present disclosure relate to techniques for codebook subset restriction (CSR). In some cases, a user equipment (UE) receives, from a network entity, codebook subset restriction (CSR) information. The UE determines, based on the CSR information, a restricted beam set for a plurality of antenna panels, determines precoding matrix indicator (PMI) feedback for the antenna panels subject to restricted beam set, and provides the PMI feedback to the network entity.
(FR)
Des aspects de la présente invention concernent des techniques pour une restriction de sous-ensemble de livre de codes (CSR). Dans certains cas, un équipement d'utilisateur (UE) reçoit, en provenance d'une entité de réseau, des informations de restriction de sous-ensemble de livre de codes (CSR). L'UE détermine, sur la base des informations de CSR, un ensemble restreint de faisceaux pour une pluralité de panneaux d'antenne, détermine des informations en retour d'indicateur de matrice de précodage (PMI) pour les panneaux d'antenne soumis à l'ensemble restreint de faisceaux, et fournit les informations en retour de PMI à l'entité de réseau.
Also published as
Latest bibliographic data on file with the International Bureau