公开(公告)号：US20220174508A1

公开(公告)日：2022-06-02

申请号：US17453552

申请日：2021-11-04

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Yongle WU ,  Raghu Narayan CHALLA ,  Brian Clarke BANISTER

IPC: H04W16/28 ,  H04W24/10 ,  H04B7/06 ,  H04W36/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a signal, transmitted by a base station, using a set of candidate beams. The UE may communicate, with the base station based at least in part on the measurement of the signal, using a first beam from the set of candidate beams. The UE may determine to switch the first beam based on a first value for a beam parameter associated with a second beam, from the set of candidate beams, satisfying a condition. The UE may measure, based at least in part on the determination to switch the first beam, the second beam to obtain a second value of the beam parameter. The UE may switch the first beam to the second beam if the second value satisfies a condition. Numerous other aspects are provided.

公开(公告)号：US20220159557A1

公开(公告)日：2022-05-19

申请号：US17439366

申请日：2019-11-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W48/16 ,  H04W72/04 ,  H04W36/30 ,  H04W24/10 ,  H04W56/00

Abstract: Aspects of the present disclosure provide a method for wireless communication at a user equipment (UE). The method includes selecting, for each of a plurality of periodic search opportunities, one receive beam of a plurality of receive beams for receiving at least one synchronization signal. The plurality of periodic search opportunities includes a plurality of regular search opportunities and a plurality of prioritized search opportunities. The plurality of receive beams includes at least one prioritized receive beam and at least one additional receive beam. The selecting includes selecting from the at least one prioritized receive beam for each of the plurality of prioritized search opportunities; and selecting from the plurality of receive beams for each of the plurality of regular search opportunities. The method further includes receiving, at each of the plurality of periodic search opportunities, the corresponding at least one synchronization signal using the corresponding selected receive beam.

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：US20210144652A1

公开(公告)日：2021-05-13

申请号：US16949574

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru GHEORGHIU ,  Raghu Narayan CHALLA ,  Timo Ville VINTOLA ,  Tienyow LIU ,  Farhad MESHKATI

IPC: H04W52/34 ,  H04W52/36

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, and a base station may receive, a report that includes information related to a power headroom available to the UE at a current power level and information related to a duty cycle that the UE can sustain over a moving integration window based at least in part on a maximum permissible exposure limit. In some aspects, the base station may transmit, and the UE may receive, scheduling information based at least in part on the information related to the power headroom available to the UE at the current power level and the information related to the duty cycle that the UE can sustain over the moving integration window. Numerous other aspects are provided.

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：US20200021421A1

公开(公告)日：2020-01-16

申请号：US16442360

申请日：2019-06-14

Applicant: QUALCOMM Incorporated

Inventor： Junsheng HAN ,  Udara FERNANDO ,  Lin LU ,  John FORRESTER ,  Mingming CAI ,  Tao LUO ,  Raghu Narayan CHALLA

IPC: H04L5/14 ,  H04W74/00 ,  H04B17/10

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In certain configurations, the apparatus may be a user equipment (UE). The apparatus may receive configuration information for UL and DL transmissions from another device such as a base station. The apparatus may determine a maximum duty cycle of the UL transmission based on the configuration information. Based on the determined UL maximum duty cycle, the apparatus may determine a transmit power limit for the UL transmission. In one aspect, the apparatus may determine the UL transmit power limit by dividing the power corresponding to a maximum permissible exposure (MPE) limit by the determined maximum UL duty cycle. The apparatus may leverage the forward knowledge of the UL duty cycle to transmit at a power level that complies with the MPE limit while avoiding the poor uplink range associated with static power back-off.

公开(公告)号：US20190182805A1

公开(公告)日：2019-06-13

申请号：US15841182

申请日：2017-12-13

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV ,  Junyi LI ,  Assaf TOUBOUL

IPC: H04W72/02 ,  H04W72/10 ,  H04W72/08 ,  H04B7/0408 ,  H04B7/06

CPC classification number: H04W72/02 ,  H04B7/0408 ,  H04B7/0691 ,  H04B7/0695 ,  H04B7/088 ,  H04W72/085 ,  H04W72/10

Abstract: The choice of a transmit (Tx)-Receive (Rx) beam pair out of many available beam pairs between a base station and a millimeter wave (mmW)-capable UE is directly related to the performance of transmission between the base station and the UE. A method, apparatus, and computer-readable medium at a transmitting user equipment (UE) capable of (mmW) communication are disclosed to determine a new serving Tx-Rx beam pair based on priorities of the plurality of Tx-Rx beam pairs. The UE may select a Transmit (Tx)-Receive (Rx) beam pair from a plurality of Tx-Rx beam pairs available at the UE for measurement, based in part on a priority of the Tx-Rx beam pair, and update the priority of the selected Tx-Rx beam pair based in part on a combination of static information and dynamic information of the selected Tx-Rx beam pair.

公开(公告)号：US20180368088A1

公开(公告)日：2018-12-20

申请号：US16005739

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Chinmay VAZE ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: According to certain aspects of the present disclosure, indicating which neighbor cells are synchronous or asynchronous with a serving cell may allow a UE to determine whether it can derive neighbor cell RS timing based on the serving cell timing.

公开(公告)号：US20250132805A1

公开(公告)日：2025-04-24

申请号：US18491518

申请日：2023-10-20

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Raghu Narayan CHALLA ,  Yongle WU ,  Kang GAO ,  Sumant Jayaraman IYER ,  Shrenik PATEL ,  Michael Lee MCCLOUD ,  Brian Clarke BANISTER

IPC: H04B7/06 ,  H04B17/24 ,  H04L25/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink communications with a receive beam that is formed using a set of antenna elements. The UE may measure, in parallel with the receiving the downlink communications, a channel impulse response (CIR) for each antenna element of the set of antenna elements in a round-robin fashion. The UE may generate a second receive beam or a transmit beam based at least in part on the CIRs for the set of antenna elements. Numerous other aspects are described.

公开(公告)号：US20250071569A1

公开(公告)日：2025-02-27

申请号：US18454725

申请日：2023-08-23

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Raghu Narayan CHALLA ,  Mohammad Ali TASSOUDJI

IPC: H04W16/28 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/06

Abstract: UE capability indications of a millimeter wave antenna module enhanced with a reflector are described. An apparatus is configured to train or refine, with a network node, at least one beam for beamformed communications associated with the UE. The UE includes an antenna array with an associated non-radiating reflector of energy. The apparatus is configured to communicate, with the network node, using the antenna array and the at least one beam. Another apparatus is configured to train or refine, with a UE, at least one beam for beamformed communications associated with the UE based on a capability indication that indicates the UE includes an antenna array with an associated non-radiating reflector of energy. The apparatus is configured to communicate with the antenna array of the UE based on the at least one beam.