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：US20240297686A1

公开(公告)日：2024-09-05

申请号：US18177728

申请日：2023-03-02

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Jun ZHU ,  Raghu Narayan CHALLA

IPC: H04B7/0426 ,  H04B7/08

CPC classification number: H04B7/043 ,  H04B7/0854

Abstract: A UE may identify a channel correlation matrix for a channel between the UE and a network node. The UE may identify whether the channel is associated with an LOS condition based on the channel correlation matrix. The UE may obtain a plurality of eigenvalues of the channel correlation matrix based on an eigen decomposition operation on the channel correlation matrix. The UE may identify whether the channel is associated with the LOS condition based on the plurality of eigenvalues of the channel correlation matrix. The UE may identify that the channel is associated with the LOS condition if a difference between a greatest eigenvalue in the plurality of eigenvalues and an average of other eigenvalues in the plurality of eigenvalues is greater than a threshold. Otherwise, the UE may identify that the channel is not associated with the LOS condition.

公开(公告)号：US20220417915A1

公开(公告)日：2022-12-29

申请号：US17304915

申请日：2021-06-28

Applicant: QUALCOMM Incorporated

Inventor： Kang GAO ,  Jun ZHU ,  Yong LI ,  Nagaraju Gajula ,  Jyothi Kiran VATTIKONDA ,  Raghu Narayan CHALLA

IPC: H04W72/04 ,  H04W56/00 ,  H04W72/00 ,  H04W8/22 ,  H04W72/12

Abstract: Wireless communications systems and methods related to monitoring and/or measuring synchronization signal blocks (SSBs) in one or more beam directions based on timing offsets associated with the beam directions are provided. In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving, from a wireless communication device, a synchronization signal block (SSB); and measuring, based on timing offsets for each of a plurality of beams of the SSB, one or multiple beams of the SSB. In some instances, the UE determines a number of beams of the SSB to measure based on the timing offsets for each of the plurality of beams of the SSB.

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.

公开(公告)号：US20240073835A1

公开(公告)日：2024-02-29

申请号：US17823815

申请日：2022-08-31

Applicant: QUALCOMM Incorporated

Inventor： Nagaraju GAJULA ,  Yong LI ,  Kang GAO

IPC: H04W56/00 ,  H04W24/10

CPC classification number: H04W56/001 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block (SSB) comprising a plurality of symbols. The UE may obtain, during a plurality of measurement windows, a plurality of measurements associated with a beam group of a plurality of reception beams corresponding to a plurality of symbols of the SSB, wherein the beam group is associated with a serving cell and comprises a first set of beams and a second set of beams, wherein each beam of the beam group corresponds to a measurement window having a window size that is less than a size of a corresponding symbol of the plurality of symbols of the SSB. The UE may perform a wireless communication task based on the plurality of measurements. Numerous other aspects are described.

公开(公告)号：US20230269600A1

公开(公告)日：2023-08-24

申请号：US17678536

申请日：2022-02-23

Applicant: QUALCOMM Incorporated

Inventor： Jun ZHU ,  Kang GAO ,  Yong LI ,  Tae Min KIM ,  Lei XIAO ,  Raghu Narayan CHALLA

IPC: H04W16/28 ,  H04W56/00 ,  H04L1/00

CPC classification number: H04W16/28 ,  H04W56/001 ,  H04L1/0025

Abstract: Aspects described herein relate to receiving, from a node and using a serving beam for loop processing, at least a first signal in a synchronization signal burst set, and receiving, from the node and using a non-serving beam for beam sweeping, at least a second signal in the synchronization signal burst set.

公开(公告)号：US20230171757A1

公开(公告)日：2023-06-01

申请号：US17540117

申请日：2021-12-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W24/08 ,  H04W72/02

CPC classification number: H04W72/046 ,  H04W24/08 ,  H04W72/02 ,  H04W56/00

Abstract: A method of wireless communication by a user equipment (UE) includes determining a first synchronization signal block (SSB) to monitor beam management. The first SSB comprises a primary synchronization signal (PSS), multiple physical broadcast channels (PBCHs), and a secondary synchronization signal (SSS). The method also includes determining a list of receive beams for measuring the first SSB. The method further includes measuring the first SSB by measuring the PSS with a first beam from the list of receive beams, measuring, with a second beam from the list of receive beams, a first demodulation reference signal (DMRS) on a first PBCH symbol of a first of the PBCHs, measuring the SSS with a third beam from the list of receive beams; and measuring, with a fourth beam from the list of receive beams, a second DMRS on a second PBCH symbol of a second of the PBCHs.

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：US20240405844A1

公开(公告)日：2024-12-05

申请号：US18327810

申请日：2023-06-01

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04W72/542

Abstract: Method and apparatus for a beam panic design. The apparatus measures at least one subset of beams of a set of beams received from a network entity. The apparatus monitors for a change within a subset of the measured beams having a highest signal quality. The apparatus measures a rate of the change of the subset of the measured beams having the highest signal quality, in response to detection of an occurrence of the change of the subset of the measured beams having the highest signal quality. The apparatus initiates a beam panic mode based on at least the rate of change of the subset of the measured beams having the highest signal quality is less than a first threshold

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.