公开(公告)号：US20250038827A1

公开(公告)日：2025-01-30

申请号：US18359196

申请日：2023-07-26

Applicant: QUALCOMM Incorporated

Inventor： Ruhua HE ,  Kang GAO ,  Raghu Narayan CHALLA

IPC: H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may measure a signal strength for each beam of a set of multiple beams. The UE may select, from the set of multiple beams, a set of two or more beams each having a respective signal strength satisfying a threshold. The UE may attempt to decode a first broadcast channel signal of a first beam of the set of two or more beams in a single broadcast channel period. The UE may decode, after failing to decode the first broadcast channel signal of the first beam, a second broadcast channel signal of a second beam of the set of two or more beams in the single broadcast channel period.

公开(公告)号：US20250030467A1

公开(公告)日：2025-01-23

申请号：US18353836

申请日：2023-07-17

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Yongle WU ,  Jun ZHU ,  Vasanthan RAGHAVAN ,  Derrick Albert CHU ,  Raghu Narayan CHALLA

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/08

Abstract: Aspects of the disclosure are directed to generation of N-port dynamic beams. For example, a user equipment (UE) may be using a 2-port predefined receive beam for communication with a wireless node. The UE may estimate a channel using the predefined receive beam to measure a rank2 reference signal received from the wireless node. The UE may generate a dynamic beam weight to maximize a communication parameter based on the estimated channel. The UE may then apply the dynamic beam weight to an antenna array.

公开(公告)号：US20240014877A1

公开(公告)日：2024-01-11

申请号：US17811502

申请日：2022-07-08

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Kang GAO ,  Mihir Vijay LAGHATE ,  Raghu Narayan CHALLA

IPC: H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04B17/309

CPC classification number: H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04B17/309

Abstract: An apparatus (e.g., a UE) may be configured to configure a plurality of orthogonal scrambling codes corresponding to a plurality of antenna panels of the UE and perform, for a first SSB transmission, a beam sweeping operation over a set of first beams for each antenna panel in the plurality of antenna panels, where, for a transmitted first signal in each symbol of the first SSB transmission, each antenna panel in the plurality of antenna panels receives the transmitted first signal via a beam in the set of first beams using an orthogonal scrambling code in the plurality of orthogonal scrambling codes corresponding to the antenna panel.

公开(公告)号：US20230319740A1

公开(公告)日：2023-10-05

申请号：US17707123

申请日：2022-03-29

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Kang GAO ,  Yong LI ,  Raghu Narayan CHALLA

IPC: H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04W48/16 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04W24/10 ,  H04L5/0051 ,  H04W48/16 ,  H04L27/26025

Abstract: In a wireless communication system, a user equipment (UE) may measure synchronization signal blocks (SSBs) to evaluate neighbor cells. A UE configured with multiple potential receive beams may conventionally measure one receive beam per SSB. A UE may improve the speed of receive beam measurements by performing measurements using demodulation reference signals (DMRS) of physical broadcast channel (PBCH) symbols, which occur twice per SSB. The UE may perform a cell search for neighbor cells available to the UE in a synchronized network to determine a number of the neighbor cells and timing information for each of the neighbor cells. The UE may measure one or more receive beams using the DMRs of the PBCHs of SSBs received from the neighbor cells. Each receive beam may be measured during a beam switch time unit including a PBCH symbol from each of the neighbor cells according to the timing information.