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1. (WO2017156151) SYSTEMS AND METHODS FOR PREAMBLE CONSTRUCTION IN UPLINK MULTI-USER ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS NETWORKS

Pub. No.:    WO/2017/156151    International Application No.:    PCT/US2017/021399
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: H04W 52/14
H04W 52/32
H04W 52/34
H04W 52/50
Applicants: INTERDIGITAL PATENT HOLDINGS, INC.
Inventors: SHAH, Nirav B.
OTERI, Oghenekome
Title: SYSTEMS AND METHODS FOR PREAMBLE CONSTRUCTION IN UPLINK MULTI-USER ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS NETWORKS
Abstract:
Presently disclosed are systems and methods for preamble construction in uplink multi-user (MU) orthogonal frequency division multiple access (OFDMA) networks. One embodiment takes the form of a method that includes a wireless station receiving an uplink resource scheduling message having a resource allocation and the wireless station further receiving transmission power-level estimation parameters; determining an uplink data transmission power based on the received transmission power-level estimation parameters; determining a fractional preamble transmission power level based on the received uplink resource scheduling message; transmitting the preamble at the determined fractional preamble transmission power level; and transmitting the uplink data at the allocated power level.