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.

公开(公告)号：US20190089568A1

公开(公告)日：2019-03-21

申请号：US15708969

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W72/04 ,  H04W4/00 ,  H04L5/00 ,  H04W56/00

Abstract: Methods and apparatus for early determination of an operation mode in a Narrowband Internet of Things (NB-IoT) system are provided. A User Equipment (UE) determines a mode of operation of a NB-IoT network before decoding a broadcast channel which indicates the mode of operation, based on at least one synchronization signal received at the UE, wherein the mode of operation indicates what bandwidth resources are used in the network. The UE processes signals based on the determined mode of operation.