公开(公告)号：US20230397023A1

公开(公告)日：2023-12-07

申请号：US17805593

申请日：2022-06-06

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Yuan GAO ,  Raghu Narayan CHALLA

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0048

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a single rank reference signal. The UE may obtain, for multiple candidate beams, one or more single rank measurements from the single rank reference signal. The UE may identify, for each respective candidate beam included among the multiple candidate beams and based at least in part on the one or more single rank measurements obtained from the single rank reference signal for the respective candidate beam, a multiple rank spectral efficiency metric. The UE may identify, from among the multiple candidate beams and based at least in part on the multiple rank spectral efficiency metric associated with each respective candidate beam, a beam to use to communicate with the network node. Numerous other aspects are described.

公开(公告)号：US20230170977A1

公开(公告)日：2023-06-01

申请号：US17538440

申请日：2021-11-30

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04B7/06

CPC classification number: H04B7/088 ,  H04B7/0695 ,  H04B7/0857 ,  H04B17/318

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure one or more downlink reference signals using one or more candidate beams in a set of candidate beams to obtain reference signal received power (RSRP) measurements for the one or more candidate beams. The UE may estimate, for each of the one or more candidate beams in the set of candidate beams, a downlink spectral efficiency and an uplink spectral efficiency based at least in part on the RSRP measurements associated with the respective candidate beam. The UE may select a downlink receive beam and an uplink transmit beam based at least in part on the downlink spectral efficiency and the uplink spectral efficiency. Numerous other aspects are described.

公开(公告)号：US20220022144A1

公开(公告)日：2022-01-20

申请号：US16932412

申请日：2020-07-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W24/10 ,  H04W72/04 ,  H04B7/01 ,  H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for a synchronization signal block (SSB)-level sleep mode. A method that may be performed by a user equipment (UE) includes determining, from a synchronization signal burst set, a first set of synchronization signal blocks (SSBs) to forgo performing measurements on using one or more receive beams based, at least in part, on one or more previous measurements associated with the determined first set of SSBs and performing measurements on only one or more remaining SSBs in the synchronization signal burst set using the one or more receive beams.

公开(公告)号：US20210345275A1

公开(公告)日：2021-11-04

申请号：US17244708

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Ting KONG ,  Yongle WU ,  Yong LI ,  Jun ZHU ,  Raghu Narayan CHALLA ,  Linzhe LI ,  Aparna NARAYANAN ,  Uzma Khan QAZI

IPC: H04W56/00

Abstract: A UE is configured to determine a set of parameters associated with receiving the SSBs, the set of parameters including a first parameter bitmap associated with a serving cell, a second parameter bitmap associated with the neighbor cell, and the SMTC. The UE is configured to determine a search window for searching the received SSBs based on the SMTC and at least one of the first parameter bitmap or the second parameter bitmap. The UE may measure the SSBs searched during the determined search window and send measurement results associated with at least a subset of the measured SSBs to the base station. The UE may also prune measurements to generate the measurement results by removing measurements associated with SSBs received in slots that are not indicated to expect SSBs, based on the first parameter bitmap, the second first parameter bitmap, or the SMTC.

公开(公告)号：US20210345260A1

公开(公告)日：2021-11-04

申请号：US17238098

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Yongle WU ,  Jafar MOHSENI ,  Raghu Narayan CHALLA

IPC: H04W56/00 ,  H04W24/10 ,  H04W76/28 ,  H04W52/52

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for applying a zero element beam to conserve power in search and measurement operations of a UE. The UE may determine to measure a set of SSBs, where each SSB of the set of SSBs is transmitted on four symbols, and further determine a subset of the SSBs for which less than the four symbols associated with the SSBs are to be used for measurement of the SSBs. The UE may measure each SSB of the subset of the SSBs through less than the four symbols associated with the SSB.

公开(公告)号：US20190245605A1

公开(公告)日：2019-08-08

申请号：US16267303

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

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

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

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：US20250096877A1

公开(公告)日：2025-03-20

申请号：US18968314

申请日：2024-12-04

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Mihir Vijay LAGHATE ,  Raghu Narayan CHALLA ,  Michael Lee MCCLOUD ,  Brian Clarke BANISTER

IPC: H04B7/06 ,  H04B7/08 ,  H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may configure a first set of throughput targets and a second set of throughput targets for an application layer. The UE may set a target throughput rate associated with the application to a required throughput target included in the first set of throughput targets. The UE may monitor a real-time throughput rate associated with the application layer. The UE may set the target throughput rate to a value in the second set of throughput targets based at least in part on a difference between the real-time throughput rate and the required throughput target satisfying a threshold. The UE may select, from a set of candidate beams, a serving beam associated with an estimated application layer throughput that satisfies the target throughput rate. Numerous other aspects are described.

公开(公告)号：US20250062816A1

公开(公告)日：2025-02-20

申请号：US18449950

申请日：2023-08-15

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for per-rank uplink and downlink beam selection. An example method, performed at a user equipment (UE), generally includes measuring channel state information (CSI) reference signals (CSI-RS) associated with a plurality of beams, determining an uplink rank and a downlink rank, selecting, from the plurality of beams, a downlink beam for processing downlink transmissions, based on the CSI RS measurements and the downlink rank, and selecting, from the plurality of beams, an uplink beam for processing uplink transmissions, based on the CSI RS measurements, the uplink rank, and the downlink rank.

公开(公告)号：US20240357522A1

公开(公告)日：2024-10-24

申请号：US18652301

申请日：2024-05-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04B17/318 ,  H04B17/336 ,  H04W24/10 ,  H04W72/044 ,  H04W72/30

CPC classification number: H04W56/001 ,  H04B17/318 ,  H04B17/336 ,  H04W24/10 ,  H04W72/046 ,  H04W72/30

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：US20240146379A1

公开(公告)日：2024-05-02

申请号：US18050981

申请日：2022-10-28

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Yongle WU ,  Jun ZHU ,  Mihir Vijay LAGHATE ,  Derrick Albert CHU ,  Raghu Narayan CHALLA

IPC: H04B7/06 ,  H04W24/08

CPC classification number: H04B7/0695 ,  H04W24/08

Abstract: Methods and apparatus for beam management where a beam is selected based on an estimated channel correlation matrix. The apparatus determines a channel correlation matrix based on downlink SSB reference signal received at the UE. The apparatus estimates a RSRP of a plurality of beams associated with an uplink channel based on the channel correlation matrix and associated beam weights. The apparatus selects a first beam from the plurality of beams having a highest estimated RSRP for communication with a base station. The apparatus communicates with the base station via the first beam.