公开(公告)号：US12022476B2

公开(公告)日：2024-06-25

申请号：US17098653

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Wooseok Nam ,  Sungwoo Park ,  Jung Ho Ryu ,  Kiran Venugopal ,  Tao Luo ,  Junyi Li

IPC: H04W72/23 ,  H04B7/06 ,  H04L12/18 ,  H04L69/324 ,  H04W72/121

CPC classification number: H04W72/23 ,  H04B7/0617 ,  H04L12/189 ,  H04L69/324 ,  H04W72/121

Abstract: This disclosure provides methods, devices and systems for beamforming in wireless communications. Some implementations more specifically relate to beamforming configurations for multicast communications. A transmitting device may transmit multicast data to multiple receiving devices, concurrently, via a physical downlink shared channel (PDSCH). The PDSCH may be preceded by a physical downlink control channel (PDCCH). The PDCCH may provide scheduling information for the PDSCH, including a multicast beam associated with the PDSCH and a timing offset or delay between the PDCCH and the PDSCH. A receiving device may determine that the PDSCH contains multicast data based on an indication in the PDCCH. To receive the PDSCH, each receiving device may tune its antennas in a direction of the scheduled multicast beam or a default beam based on the delay between the PDCCH and the PDSCH.

公开(公告)号：US11985668B2

公开(公告)日：2024-05-14

申请号：US17080432

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Yan Zhou ,  Tao Luo ,  Tianyang Bai ,  Junyi Li

IPC: H04W72/21 ,  H04L5/00 ,  H04W74/08 ,  H04W74/0833

CPC classification number: H04W72/21 ,  H04L5/0048 ,  H04W74/0833

Abstract: Certain aspects of the present disclosure provide techniques for uplink transmit beam update using uplink transmission configuration indicator (TCI) states. An example method generally includes receiving, from a network entity, signaling of an uplink transmission configuration indicator (TCI) state update for one or more uplink transmissions. The example method generally includes determining the uplink TCI state update is to be applied for dynamically scheduled uplink transmission, semi-persistently scheduled uplink transmission, or periodic uplink transmission. The example method generally includes applying the uplink TCI state update to one or more uplink transmissions in accordance with the determination.

公开(公告)号：US11973546B2

公开(公告)日：2024-04-30

申请号：US17125832

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Wooseok Nam ,  Yan Zhou ,  Tao Luo ,  Junyi Li ,  Mostafa Khoshnevisan

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04B17/336 ,  H04B17/391 ,  H04W56/00 ,  H04W72/044 ,  H04W72/23 ,  H04W72/30 ,  H04W76/27 ,  H04W80/02

CPC classification number: H04B7/0417 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04B17/336 ,  H04W56/001 ,  H04W72/046 ,  H04W72/23 ,  H04W72/30 ,  H04W76/27 ,  H04W80/02

Abstract: In some access networks, group-based beam reporting configured for a UE may be based on heuristics and/or based on UE implementation, and therefore, may lack adequate information regarding joint channel properties for simultaneous transmission and reception on a channel configured with a base station. Configurations of UEs and base stations are described herein that support various feedback metrics for resource grouping in association with transmission and reception operation modes and/or channel states, such as MIMO schemes, SINRs, channel properties, and the like. Base stations may dynamically indicate metrics to be reported by UEs so that simultaneous transmission and reception may be sufficiently supported.

公开(公告)号：US11950288B2

公开(公告)日：2024-04-02

申请号：US17115394

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Wooseok Nam ,  Tao Luo ,  Junyi Li

IPC: H04W74/08 ,  H04W56/00 ,  H04W74/0833

CPC classification number: H04W74/0833 ,  H04W56/001

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a base station supports single frequency network (SFN) radio access channel (RACH) beam refinement. The UE may receive a transmission, as part of a RACH operation, the transmission having SFN enabled or having SFN not enabled. Numerous other aspects are provided.

公开(公告)号：US11950113B2

公开(公告)日：2024-04-02

申请号：US17453938

申请日：2021-11-08

Applicant: QUALCOMM INCORPORATED

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson ,  Tianyang Bai ,  Kiran Venugopal

IPC: H04W24/04

CPC classification number: H04W24/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine, during a beam failure recovery period, that a configured control resource set at least partially overlaps with a beam failure recovery control resource set. The UE may configure, based at least in part on the at least partial overlap, a receive beam to receive the beam failure recovery control resource set. The UE may receive a control signal over the beam failure recovery control resource set during the beam failure recovery period.

公开(公告)号：US11943777B2

公开(公告)日：2024-03-26

申请号：US17126820

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Yan Zhou ,  Tianyang Bai ,  Tao Luo ,  Junyi Li

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/51

CPC classification number: H04W72/23 ,  H04L5/0048 ,  H04W72/51

Abstract: Certain aspects of the present disclosure provide techniques for determining default parameters to use in the absence of a signaled uplink transmission configuration indicator (TCI) state for uplink transmissions. In some cases, a UE may determine, based on one or more rules, at least one of a default uplink beam or default path loss reference signal (PL RS) to use an uplink transmission in the absence of a signaled uplink transmission configuration indicator (TCI) state for the uplink transmission; and send the uplink transmission in accordance with the determination.

公开(公告)号：US11903071B2

公开(公告)日：2024-02-13

申请号：US17821037

申请日：2022-08-19

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Yan Zhou ,  Kiran Venugopal ,  Jung Ho Ryu ,  Tao Luo ,  Junyi Li

IPC: H04W76/19 ,  H04W16/28 ,  H04W76/15 ,  H04W72/1268 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W76/19 ,  H04W16/28 ,  H04W72/1268 ,  H04W72/21 ,  H04W72/23 ,  H04W76/15

Abstract: Aspects of the present disclosure provide techniques for beam failure detection and related timing determinations, such as for applying a default beam after beam failure recovery response (BFRR) message. A method by a user equipment (UE) may include detecting failure of a beam associated with a first cell. The detecting can include performing beam failure detection (BFD) of a beam pair link (BPL) associated with the first cell (e.g., secondary cell (Scell)). The first cell can be in carrier aggregation (CA) with a second cell. The UE may send a beam failure recovery request (BFRQ) message on a second cell (e.g., a primary cell (Pcell)). The BFRQ message can include a candidate recovery beam for the first cell. The UE can receive a BFRR message on the second cell and determine a duration from reception of the BFRR message until using a default beam for communications on the first cell.

公开(公告)号：US11895596B2

公开(公告)日：2024-02-06

申请号：US17469657

申请日：2021-09-08

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Yan Zhou ,  Tao Luo ,  Tianyang Bai ,  Junyi Li ,  Kiran Venugopal

IPC: H04W52/14 ,  H04L5/00 ,  H04W24/08 ,  H04W52/24 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W52/146 ,  H04L5/0048 ,  H04W24/08 ,  H04W52/242 ,  H04W72/21 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform path-loss estimation to support uplink transmit power control. The UE may perform path-loss estimations on path-loss reference signals configured by a base station. In some cases, the base station may update (e.g., activate, deactivate, or both) particular path-loss reference signals using a medium access control (MAC) control element (CE). The UE may determine which path-loss reference signal or signals to use for path-loss estimation based on one or more techniques. For example, the UE may filter path-loss measurements over a time duration or may use a single, unfiltered path-loss measurement for path-loss estimation. Additionally or alternatively, the UE may receive deactivated path-loss reference signals (e.g., for a set amount of time or for any amount of time) or may refrain from receiving deactivated path-loss reference signals.

公开(公告)号：US11855828B2

公开(公告)日：2023-12-26

申请号：US17302578

申请日：2021-05-06

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Junyi Li ,  Wooseok Nam ,  Sungwoo Park ,  Kiran Venugopal ,  Tao Luo ,  Jung Ho Ryu ,  Qian Zhang ,  Ling Ding

IPC: H04L27/26 ,  H04W72/0453 ,  H04W72/0446 ,  H04L5/00

CPC classification number: H04L27/2675 ,  H04L5/0048 ,  H04W72/0446 ,  H04W72/0453

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a tracking reference signal (TRS) pattern to be used for receiving a TRS. The TRS pattern may indicate a plurality of TRS symbols of the TRS, one or more TRS symbols of the plurality of TRS symbols having a bandwidth that is different than a bandwidth of at least one other TRS symbol of the plurality of TRS symbols, or having a discontinuous tone allocation. The UE may receive the TRS based at least in part on the TRS pattern. Numerous other aspects are provided.

公开(公告)号：US11818069B2

公开(公告)日：2023-11-14

申请号：US17125886

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Yan Zhou ,  Wooseok Nam ,  Sungwoo Park ,  Tianyang Bai ,  Mostafa Khoshnevisan ,  Junyi Li ,  Tao Luo ,  Arumugam Chendamarai Kannan

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/08 ,  H04W76/27 ,  H04L1/00 ,  H04B17/309

CPC classification number: H04L5/0053 ,  H04B7/0626 ,  H04B7/0695 ,  H04B7/0857 ,  H04B17/309 ,  H04L1/0026 ,  H04W76/27

Abstract: A UE configured to report resources, such as beams, to a base station may be unaware of the context or purpose for which the UE is reporting such resources. As different resources may provide different performance and/or quality when used in different contexts, the resources reported by the UE may provide lower quality and/or performance in one context relative to some other unreported resources. In order to improve resource reporting by the UE, the UE may be informed of an operational mode and/or a criteria based upon which the UE may select resources to report. The UE may report such selected resources to the base station in a group-based beam report. The base station may then configure communication with the UE based on the reported resources.