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1. (WO2018140210) TECHNIQUES AND APPARATUSES FOR CHANNEL INTERFERENCE REDUCTION

Pub. No.:    WO/2018/140210    International Application No.:    PCT/US2018/012616
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Sat Jan 06 00:59:59 CET 2018
IPC: H04L 1/08
H04J 11/00
Applicants: QUALCOMM INCORPORATED
Inventors: RICO ALVARINO, Alberto
BHATTAD, Kapil
WANG, Xiao feng
MONTOJO, Juan
CHEN, Wanshi
GAAL, Peter
Title: TECHNIQUES AND APPARATUSES FOR CHANNEL INTERFERENCE REDUCTION
Abstract:
A base station (BS) may transmit, and a user equipment (UE) may receive, a physical broadcast channel, such as a narrowband physical broadcast channel (NB-PBCH). In an interference-limited scenario with synchronous cells in a network, repetitions of a symbol being transmitted for a first physical broadcast channel of a first cell may collide with repetitions of a symbol being transmitted for a second physical broadcast channel of a second cell. This may result in the UE being unable to recover symbols of a physical broadcast channel. In some aspects, the BS may transmit, and the UE may receive, a physical broadcast channel including bits processed using a first processing stage, such as using first scrambling sequences, and a second processing stage, such as using second scrambling sequences, to compensate for the interference, thereby ensuring that the UE can recover the symbols of the physical broadcast channel.