公开(公告)号：US20210105749A1

公开(公告)日：2021-04-08

申请号：US17028714

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Ruhua HE ,  Raghu Narayan CHALLA ,  Yong LI ,  Parisa CHERAGHI ,  Peter GAAL ,  Juan MONTOJO ,  Alexandros MANOLAKOS ,  Alexei Yurievitch GOROKHOV

IPC: H04W72/04 ,  H04W48/12 ,  H04L5/00 ,  H04W76/27 ,  H04W72/12

Abstract: A UE determines a default beam for a physical downlink shared channel (PDSCH) that is independent of a beam for a physical downlink control channel (PDCCH). The default PDSCH beam may be determined based on information received in a medium access control-control element (MAC-CE), or a radio resource control (RRC) message, a downlink control information (DCI). The default PDSCH beam may be determined based on at least one active transmission configuration indication (TCI) state for the PDSCH.

公开(公告)号：US20250063589A1

公开(公告)日：2025-02-20

申请号：US18452501

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Yongle WU ,  Jun ZHU ,  Derrick Albert CHU ,  Vasanthan RAGHAVAN ,  Yong LI ,  Ruhua HE ,  Sumant Jayaraman IYER ,  Kang YANG ,  Shrenik PATEL ,  Raghu Narayan CHALLA

IPC: H04W72/542 ,  H04W72/0446 ,  H04W72/12

Abstract: Scheduling with split symbols for beam management is described. An apparatus is configured to receive, from a network node, DL signaling including a symbol in a first slot, and to measure a first measurement of a first beam during a first time portion, and a second measurement of a second beam during a second different time portion, of the symbol. The apparatus is configured to communicate, with the network node, using the first or second beam based on at least one of the first measurement or the second measurement. Another apparatus is configured to provide, for a UE, DL signaling including a symbol in a first slot, and to communicate, with the UE, using the first or second beam based on a first and/or second measurement. The first and second measurements are of first and second beams during a first and second different time portions of the symbol, respectively.

公开(公告)号：US20230379848A1

公开(公告)日：2023-11-23

申请号：US18319377

申请日：2023-05-17

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Yongle WU ,  Yong LI ,  Peter GAAL

IPC: H04W56/00

CPC classification number: H04W56/001

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a non-cell-defining (NCD)-synchronization signal and physical broadcast channel (PBCH) block (SSB) (NCD-SSB) configuration indicating one or more parameters corresponding to transmission, via at least one NCD-SSB burst, of at least one NCD-SSB set associated with at least one cell, the at least one cell comprising at least one of a primary cell or a secondary cell. The UE may receive the at least one NCD-SSB burst based at least in part on the NCD-SSB configuration. Numerous other aspects are described.

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.

公开(公告)号：US20230019061A1

公开(公告)日：2023-01-19

申请号：US17305779

申请日：2021-07-14

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Yong LI ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV

IPC: H04W16/28 ,  H04B17/336 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a signal-to-noise ratio (SNR) associated with the UE. The UE may determine a beam tracking frequency based at least in part on the SNR. The UE may perform a beam tracking in accordance with the beam tracking frequency. Numerous other aspects are described.

公开(公告)号：US20220078726A1

公开(公告)日：2022-03-10

申请号：US17012722

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Ruhua HE ,  Mihir Vijay LAGHATE ,  Yong LI ,  Raghu Narayan CHALLA

IPC: H04W56/00 ,  H04W72/00 ,  H04W72/04 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336

Abstract: Aspects described herein relate to receiving, from a base station, a transmit beam including a synchronization signal block (SSB) of multiple broadcast signals transmitted over multiple symbols, wherein receiving the transmit beam includes switching among multiple receive beams for each of the multiple symbols to receive a corresponding broadcast signal of the multiple broadcast signals, measuring a signal metric of each of the multiple broadcast signals as received via a corresponding receive beam of the multiple receive beams in a corresponding symbol of the multiple symbols, and selecting, based on the signal metric measured for each of the multiple broadcast signals, a receive beam of the multiple receive beams for communicating with the base station.

公开(公告)号：US20210314959A1

公开(公告)日：2021-10-07

申请号：US17219466

申请日：2021-03-31

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Linhai HE ,  Yong LI

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for a scheduled entity to communicate within a wireless communication network. In one aspect, the scheduled entity receives a plurality of neighbor cell measurement relaxation mechanisms from a scheduling entity. The scheduled entity determines one or more channel condition parameters and selects one or more of the pluralities of neighbor cell measurement relaxation mechanisms, based on the determined one or more channel condition parameters. The scheduled entity executes measurement of one or more neighbor cells using the selected one or more neighbor cell measurement relaxation mechanisms.

公开(公告)号：US20200336190A1

公开(公告)日：2020-10-22

申请号：US16908561

申请日：2020-06-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Junyi LI ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Yong LI ,  Jun ZHU ,  Tianyang BAI

IPC: H04B7/06 ,  H04B17/327 ,  H04W72/08 ,  H04W72/04 ,  H04W24/10

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.

公开(公告)号：US20190289552A1

公开(公告)日：2019-09-19

申请号：US16354087

申请日：2019-03-14

Applicant: QUALCOMM Incorporated

Inventor： Chhavi JAIN ,  Baris EFE ,  Yong LI ,  Raghu CHALLA ,  Chun-Hao HSU

IPC: H04W52/02 ,  H04W24/10 ,  H04B7/06

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE). The method generally includes: identifying at least one indicator to conserve power; and in response to the identification, determining to skip one or more periodic or semi-persistent measurements of a signal from a cell based on at least one criteria.