公开(公告)号：US20200281005A1

公开(公告)日：2020-09-03

申请号：US16289603

申请日：2019-02-28

Applicant: QUALCOMM Incorporated

Inventor： Ting Kong ,  Chun-Hao Hsu ,  Yongle Wu ,  Yong Li ,  Jun Zhu ,  Raghu Narayan Challa

IPC: H04W72/12 ,  H04B7/08 ,  H04W72/04 ,  H04W56/00 ,  H04W28/02 ,  H04B7/0408

Abstract: Dynamic User Equipment (UE) beam switching for millimeter wave (mmWave) measurements in asynchronous networks is discussed in which a UE configured with a plurality of UE beams receives timing information of detected cells in an asynchronous network, and calculates, based on the timing information, a maximum offset for the detected cells indicating a timing difference between a pair of cells of the detected cells that is larger than a timing difference between any other pair of the detected cells. A UE beam switch from a UE beam to another UE beam of the plurality of beams is scheduled based on the maximum offset, which includes using the maximum offset to determine how often the UE beam switch can be performed. Other aspects and features are also claimed and described.

公开(公告)号：US20190230544A1

公开(公告)日：2019-07-25

申请号：US16246421

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Ruhua He ,  Raghu Narayan Chaila

IPC: H04W24/10 ,  H04W56/00 ,  H04W72/12 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may determine a set of scheduled synchronization signal transmission times. A first subset of the set of scheduled synchronization signal transmission times may be allocated for dynamic measurement. The wireless device may select at least one candidate beam from a set of candidate beams for a dynamic measurement during one of the transmission times in the first subset. The at least one candidate beam may be selected based at least in part on a fairness metric, a signal strength metric, a timing metric, or a combination thereof. The wireless device may perform a measure procedure on the selected at least one candidate beam and may transmit a measurement report based at least in part on the measure procedure to another wireless device (e.g., a base station).

公开(公告)号：US12279245B2

公开(公告)日：2025-04-15

申请号：US17934974

申请日：2022-09-23

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Raghu Narayan Challa

IPC: H04B7/0408 ,  H04B7/06 ,  H04B7/08 ,  H04B17/318 ,  H04B17/373 ,  H04B17/382 ,  H04W8/22 ,  H04W16/28 ,  H04W24/10 ,  H04W52/36 ,  H04W56/00 ,  H04W72/044 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first reference signal (RS). The UE may identify a set of UE beams based at least in part on signal strengths of the first RS as measured via at least one UE beam of the set of UE beams. The UE may transmit, based at least in part on the first RS, a report including an indication of a network node beam for communication with the UE, the indication based at least in part on a signal strength of the first RS using a first UE beam of the set of UE beams. The UE may receive a second RS using the set of UE beams. The UE may identify, based at least in part on the second RS, a second UE beam of the set of UE beams, identification based at least in part on a spectral efficiency associated with the second UE beam. The UE may communicate with the network node using the second UE beam. Numerous other aspects are described.

公开(公告)号：US12279134B2

公开(公告)日：2025-04-15

申请号：US17866224

申请日：2022-07-15

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Hongbo Yan ,  Raghu Narayan Challa

IPC: H04W16/28 ,  H04B17/318 ,  H04B17/336 ,  H04W24/10 ,  H04W56/00 ,  H04W72/044 ,  H04W72/30

Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. Aspects of the described techniques may include the user equipment measuring signal aspects for a plurality of respective receive beams for receiving communications associated with a synchronization signal block transmitted by a base station on a transmit beam. From the measured signal aspects, the UE may determine that a receive beam from the plurality of receive beams is a preferred beam for receipt of communications from the base station transmitted on the transmit beam. With the determined preferred beam, the UE may initiate a beam-sweeping procedure to re-measure the plurality of UE receive beams, where the UE measures the first UE receive beam before measuring others of the plurality of UE receive beams.

公开(公告)号：US20240396598A1

公开(公告)日：2024-11-28

申请号：US18324323

申请日：2023-05-26

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Vasanthan Raghavan ,  Yongle Wu ,  Jun Zhu ,  Raghu Narayan Challa

IPC: H04B7/0456

Abstract: Example implementations include a method, apparatus and computer-readable medium for wireless communication configured for estimating a channel using a set of predefined sensing beams to measure reference signals. Estimating the channel may include generating an N×N channel correlation matrix, where N is a number of antenna elements in the antenna array. The implementations further include generating a set of dynamic beam weights to maximize a reference signal received power (RSRP) based on the estimated channel. The set of dynamic beam weights may be based on an eigenvector of the channel correlation matrix. Additionally, the implementations further include applying the set of dynamic beam weights to an antenna array.

公开(公告)号：US11930375B2

公开(公告)日：2024-03-12

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 ,  H04B7/06 ,  H04W24/10 ,  H04W36/08

CPC classification number: H04W16/28 ,  H04B7/0695 ,  H04W24/10 ,  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：US11758458B2

公开(公告)日：2023-09-12

申请号：US17465491

申请日：2021-09-02

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Yongle Wu ,  Raghu Narayan Challa

IPC: H04W36/30 ,  H04B7/06 ,  H04W36/00 ,  H04B7/08 ,  H04W36/06

CPC classification number: H04W36/30 ,  H04B7/0632 ,  H04B7/0695 ,  H04W36/0058 ,  H04W36/06

Abstract: Techniques for managing base station beam panic for new radio technologies may include a user equipment (UE) measuring a signal quality of a serving beam from a base station. The UE may determine the signal quality has decreased by at least a threshold amount, and enable a signal panic operation to search for a beam different from the serving beam, in response to the signal quality decreasing by at least the threshold amount.

公开(公告)号：US11706758B2

公开(公告)日：2023-07-18

申请号：US17167598

申请日：2021-02-04

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yongle Wu ,  Raghu Narayan Challa

IPC: H04W72/1268 ,  H04W72/02

CPC classification number: H04W72/1268 ,  H04W72/02

Abstract: Certain aspects of the present disclosure provide techniques for scheduling component carriers and one or more operations on a per NB RF chain basis. A method that may be performed by a user equipment (UE) includes monitoring occurrences of a first number of operations to be performed for a plurality of component carriers (CCs) according to different periodicities, determining a second number of available narrow band (NB) radio frequency (RF) chains, and scheduling, on the available NB RF chains, up to the second number of the operations to be performed for the plurality of CCs based on a scheduling algorithm if the first number is greater than the second number.

公开(公告)号：US11647410B2

公开(公告)日：2023-05-09

申请号：US16909482

申请日：2020-06-23

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Raghu Narayan Challa

IPC: H04W24/10

CPC classification number: H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions. The UE may perform at least one of a radio resource management (RRM) operation or a beam management (BM) operation on a group of SSBs based at least in part on whether the plurality of SSB measurement occasions overlap all SSBs of the group of SSBs. Numerous other aspects are provided.

公开(公告)号：US11627476B2

公开(公告)日：2023-04-11

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 ,  H04W72/1263

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.