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1. (WO2017176204) REFERENCE SIGNAL GENERATION IN A WIRELESS COMMUNICATION SYSTEM

Pub. No.:    WO/2017/176204    International Application No.:    PCT/SE2017/050340
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: H04L 25/02
H04L 27/26
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: ADHIKARY, Ansuman
GRÖVLEN, Asbjörn
WANG, Yi-Pin Eric
SUI, Yutao
LIN, Xingqin
BLANKENSHIP, Yufei
SAXENA, Vidit
Title: REFERENCE SIGNAL GENERATION IN A WIRELESS COMMUNICATION SYSTEM
Abstract:
A user equipment (12) is configured to determine a length-6 phase coefficient sequence that is one of multiple unique length-6 phase coefficient sequences in a defined set (18). The length-6 phase coefficient sequences in the defined set (18) include at least: {1, 1, 1, 1, 3, -3} and {-3, 3, -3, 1, 1, -3}; or {-1, -1, -1, 3, -3, -1} and either {3, -3, 3, -1, 3, 3} or {1, 3, 1, -1, -1, 3}. The user equipment (12) is also configured to generate a quadrature phase shift keying, QPSK,-based sequence that comprises a sequence of QPSK symbols whose respective phases are based on the determined phase coefficient sequence. The user equipment (12) is further configured to generate a reference signal (16) using the generated QPSK-based sequence, and transmit the generated reference signal (16) to a network node (14) in a wireless communication system (10).