公开(公告)号：US20180317161A1

公开(公告)日：2018-11-01

申请号：US15963074

申请日：2018-04-25

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Chun-Hao HSU ,  Amit MATHUR ,  Sathyadev Venkata UPPALA ,  Wingip TAM

IPC: H04W48/16 ,  H04J11/00

CPC classification number: H04W48/16 ,  H04J11/0086 ,  H04W48/18 ,  H04W48/20 ,  H04W72/0453 ,  H04W84/12

Abstract: Techniques for efficient and accurate frequency scans in Narrow Band-Internet of Things (NB-IoT) systems are provided. In an example, a user equipment (UE) searches for a cell on at least one of a plurality of frequency rasters based on a multi-stage search technique, wherein each stage of the multi-stage search searches the at least one frequency raster based on a different set of search parameters. The UE detects a cell on at least one of the frequency rasters based on the searching.