Search International and National Patent Collections

1. (WO2017035238) DOWNLINK AND SYNCHRONIZATION TECHNIQUES FOR NARROWBAND WIRELESS COMMUNICATIONS

Pub. No.:    WO/2017/035238    International Application No.:    PCT/US2016/048406
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Aug 25 01:59:59 CEST 2016
IPC: H04L 5/00
Applicants: QUALCOMM INCORPORATED
Inventors: RICO ALVARINO, Alberto
CHEN, Wanshi
FAKOORIAN, Seyed Ali Akbar
GAAL, Peter
PATEL, Shimman, Arvind
VAJAPEYAM, Madhavan, Srinivasan
WANG, Renqiu
LEI, Jing
XU, Hao
Title: DOWNLINK AND SYNCHRONIZATION TECHNIQUES FOR NARROWBAND WIRELESS COMMUNICATIONS
Abstract:
Various techniques for narrowband communications in a wireless communications network are provided. Narrowband communications may be transmitted using a single resource block (RB) of a number of RBs used for wideband communications. In order to provide for efficient device discovery and synchronization using narrowband communications, a synchronization signal, such as a primary synchronization signal (PSS) or secondary synchronization signal (SSS), may be transmitted within the single resource block. The synchronization signal may be transmitted, for example, using multiple orthogonal frequency division multiplexing (OFDM) symbols within the single RB. A common reference signal (CRS) may also be present in the single resource block, which may puncture the synchronization signal, in some examples. In other examples, the synchronization signal may be mapped to non-CRS symbols of the single resource block.