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1. (WO2018165648) COLLISION MITIGATION FOR DIRECTIONAL RESPONSE IN MILLIMETER WAVE WIRELESS LOCAL AREA NETWORK SYSTEMS

Pub. No.:    WO/2018/165648    International Application No.:    PCT/US2018/021932
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Mar 13 00:59:59 CET 2018
IPC: H04B 7/06
H04B 7/08
H04W 16/28
Applicants: INTERDIGITAL PATENT HOLDINGS, INC.
Inventors: OTERI, Oghenekome
LOU, Hanqing
WANG, Xiaofei
SUN, Li-Hsiang
YANG, Rui
Title: COLLISION MITIGATION FOR DIRECTIONAL RESPONSE IN MILLIMETER WAVE WIRELESS LOCAL AREA NETWORK SYSTEMS
Abstract:
A method, apparatus, and system for beamforming training using a wireless transmit receive unit (WTRU). A WTRU may receive an indication of a number of space time slots (STSs) from an access point (AP) within a beacon frame during a beamforming training allocation. The WTRU may send a response signal to the AP in a specific STS based on a function of the number of STSs. The WTRU may receive an acknowledgement (ACK) from the AP confirming the response was received. Alternatively, the AP may send a signal indicating that a collision occurred and alter the number of STSs, and the WTRU may try again in the next beamforming training allocation.