US Patent No. 10,512,050

SYNCHRONIZATION AND BROADCAST CHANNEL DESIGN WITH FLEXIBLE BANDWIDTH ALLOCATIONS


Patent No. 10,512,050
Issue Date December 17, 2019
Title Synchronization And Broadcast Channel Design With Flexible Bandwidth Allocations
Inventorship Sony Akkarakaran, Poway, CA (US)
Tao Luo, San Diego, CA (US)
Xiaoxia Zhang, San Diego, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,512,050

1. A method for wireless communications by a user equipment (UE), comprising:detecting a synchronization channel and a secondary synchronization signal (SSS) transmitted with the synchronization channel by searching for one or more synchronization channels according to a synchronization channel raster, that is not centered around a direct current (DC) tone of a system bandwidth, the synchronization channel raster having a coarser granularity than a channel raster for other channels in the system bandwidth;
receiving a reference signal for demodulation (DMRS), other than a cell-specific reference signal, wherein a sequence of the DMRS is independent of at least one of a downlink bandwidth or a location of the synchronization channel within the system bandwidth;
demodulating a physical broadcast channel (PBCH) transmitted in the synchronization channel based on at least one of the DMRS and the SSS; and
determining the system bandwidth corresponding to the downlink bandwidth based at least in part on the PBCH.