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1. (WO2017172779) ENHANCED ANTENNA ARRAY TRAINING

Pub. No.:    WO/2017/172779    International Application No.:    PCT/US2017/024555
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: H04B 7/06
H04B 7/08
Applicants: QUALCOMM INCORPORATED
Inventors: KIM, Beomsup
ZHANG, Ning
ZHANG, Xiaoxin
KIM, Youhan
Title: ENHANCED ANTENNA ARRAY TRAINING
Abstract:
Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.