公开(公告)号：US11297613B2

公开(公告)日：2022-04-05

申请号：US16746304

申请日：2020-01-17

Applicant: QUALCOMM incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Makesh Pravin John Wilson ,  Sungwoo Park ,  Wooseok Nam

IPC: H04W72/04 ,  H04W74/08 ,  H04B7/08 ,  H04B7/06 ,  H04W48/08

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying a receive beam for performing a listen before talk (LBT) procedure in an attempt to gain access to a transmission opportunity (TxOP) in a shared radio frequency spectrum. In particular, a wireless device may select a receive beam that corresponds to one or more transmit beams to be used in a TxOP to perform an LBT procedure in an attempt to gain access to the TxOP. In one example, the wireless device may select a receive beam for performing an LBT procedure based on the energy of each of the transmit beams to be used in a TxOP. In another example, the wireless device may select a receive beam for performing an LBT procedure if the receive beam is quasi co-located with each of the transmit beams to be used in a TxOP.

公开(公告)号：US11290228B2

公开(公告)日：2022-03-29

申请号：US16450804

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Kaushik Chakraborty ,  Makesh Pravin John Wilson

IPC: H04L5/00 ,  H04W24/02 ,  H04W72/04

Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to semi-persistent configuration of reference signals (RSs), such as measurement reference signals (MRSs) for beam refinement. An example method generally includes transmitting, to a user equipment (UE), a reference symbol (RS) configuration, wherein transmitting the RS configuration is independent of activating RS training for the UE, transmitting, to the UE, a message indicating an activation of RS training subsequent to transmitting the RS configuration, transmitting RSs to the UE periodically based on the RS configuration, and receiving, from the UE, measurement reports based on the transmitted RS.

公开(公告)号：US20220060914A1

公开(公告)日：2022-02-24

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

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：US20220038915A1

公开(公告)日：2022-02-03

申请号：US17401191

申请日：2021-08-12

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Alexandros Manolakos

IPC: H04W16/14 ,  H04W72/10 ,  H04W24/08 ,  H04W80/02 ,  H04W72/12 ,  H04W72/04 ,  H04W76/27

Abstract: Improved methods, systems, devices, or apparatus that support prioritization for potential shared data transmissions are described. In some cases, a receiving device may identify transmission parameters for shared transmissions including a scheduled shared transmission and determine resources for a potential shared transmission. The receiving device may monitor for the shared transmission(s) based on priority rules for a shared transmission and the potential shared transmission. For instance, the receiving device may be configured to receive only one of the scheduled or potential shared transmission. In some cases, the transmitting device may consider the priority rules and determine whether to transmit or drop one or more shared transmissions.

公开(公告)号：US11240841B2

公开(公告)日：2022-02-01

申请号：US16534675

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Yan Zhou ,  Heechoon Lee ,  Peter Pui Lok Ang ,  Alexandros Manolakos

IPC: H04W74/08 ,  H04W56/00 ,  H04W72/12 ,  H04W16/14

Abstract: Various aspects of the disclosure relate to use of a default communication configuration for cross carrier wireless communication. For example, a wireless communication device such as a user equipment (UE) may use a default communication configuration that includes quasi-colocation information (e.g., a default CORESET configuration) for communication on a secondary component carrier (SCC). The default communication configuration may be used, for example, in scenarios where a CORESET is not defined for the SCC and other configuration information is not available. For example, other configuration information might not be available due to a short time gap between a grant sent on a primary component carrier (PCC) and the communication on the SCC scheduled by the grant.

公开(公告)号：US11240684B2

公开(公告)日：2022-02-01

申请号：US16719564

申请日：2019-12-18

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiaoxia Zhang ,  Yan Zhou ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Jing Sun

IPC: H04W16/28 ,  H04W16/14 ,  H04W80/02 ,  H04W74/02 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a degradation of a communication beam associated with a user equipment (UE). The base station may transmit a first signal identifying a beam switch occasion for the UE. The UE may receive a second signal identifying the beam switch occasion based on an outcome of the contention-based procedure. In some cases, the UE may transmit a third signal acknowledging the beam switch occasion during an acknowledgment opportunity based on the second signal, and may perform a beam switch during the beam switch occasion based on transmitting the third signal.

公开(公告)号：US11239893B2

公开(公告)日：2022-02-01

申请号：US16253642

申请日：2019-01-22

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04B7/024 ,  H04W72/04 ,  H04W72/14

Abstract: Certain aspects of the present disclosure relate to quasi co-location assumptions for aperiodic channel state information (CSI) reference signals (RS) in communications systems operating according to NR techniques. An exemplary method that may be performed by a UE includes determining a quasi-co-location (QCL) relationship of an aperiodic channel state information (CSI) reference signal (CSI-RS) to a physical channel and processing the aperiodic CSI-RS according to the determined QCL relationship.

公开(公告)号：US11224060B2

公开(公告)日：2022-01-11

申请号：US16654435

申请日：2019-10-16

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Jing Sun ,  Srinivas Yerramalli

IPC: H04W72/12 ,  H04W16/14

Abstract: A method, a computer-readable medium, and an apparatus are provided that improves the reliability of communication between a base station and a user equipment (UE) using an unlicensed spectrum. A base station transmits an initial signal (IS) to the UE indicating communication to the UE within a Channel Occupancy Time (COT), and transmits a gap transmission during the COT over a time period following the IS and prior to transmitting the communication to the UE.

公开(公告)号：US11196524B2

公开(公告)日：2021-12-07

申请号：US16421110

申请日：2019-05-23

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Makesh Pravin John Wilson ,  Kiran Venugopal ,  Jung Ho Ryu ,  Xiaoxia Zhang ,  Yan Zhou ,  Tao Luo

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/04

Abstract: In multi-beam communication, the UE may assist in the scheduling of beams utilized during the multi-beam communication by improving the manner in which the quality of the beam is reported to the network. The apparatus may measure a signal received from a base station on at least one beam. The apparatus may detect a triggering event for providing CSI for the at least one beam. The apparatus may transmit an uplink transmission comprising a CSI report in response to detecting the triggering event. The apparatus may receive an uplink request from a UE for providing CSI for at least one beam. The apparatus may transmit an indication scheduling a CSI report in response to the uplink request. The apparatus may receive an uplink transmission from the UE comprising the CSI report for the at least one beam.

公开(公告)号：US11191068B2

公开(公告)日：2021-11-30

申请号：US16680272

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Makesh Pravin John Wilson ,  Arumugam Chendamarai Kannan ,  Mostafa Khoshnevisan

IPC: H04W72/04 ,  H04W24/08 ,  H04W72/08 ,  H04L5/00 ,  H04L1/18 ,  H04W72/14

Abstract: Certain aspects of the present disclosure provide techniques for per transmission configuration channel sensing. A method for wireless communication by a user equipment (UE) generally includes monitoring a plurality of dummy physical downlink control channel (PDCCH) transmissions from at least one base station (BS). The dummy PDCCH transmissions use a different transmission configuration. The UE sends acknowledgment feedback for the plurality of dummy PDCCH transmission. The ACK feedback for the dummy PDCCH transmissions may be multiplexed with ACK feedback to the at least one BS for physical downlink shared channel (PDSCH) transmissions. A UE may receive a configuration reserving one or more bits in a UE codebook for providing the ACK feedback. Each reserved bit may be for control resource sets associated with a transmission configuration. The UE monitors PDDCH transmissions using different transmission configurations and uses the reserved bits to transmit ACK feedback for the PDCCH transmissions.