公开(公告)号：US11172513B2

公开(公告)日：2021-11-09

申请号：US16680426

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Makesh Pravin John Wilson ,  Tao Luo ,  Wanshi Chen

IPC: H04W4/00 ,  H04W74/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying spatial parameters for receiving control information in an initial coreset. In one example, a user equipment (UE) may receive a TCI state indicating reference signals quasi co-located with a control information transmission in a coreset, and the UE may also identify a quasi co-location (QCL) assumption in a random-access procedure indicating that a synchronization signal block (SSB) is quasi co-located with the control information transmission in the coreset. In this example, the UE may identify spatial parameters for monitoring the coreset for the control information transmission in accordance with the TCI state or the QCL assumption based on the timing of the indicated TCI state and the QCL assumption.

公开(公告)号：US11166265B2

公开(公告)日：2021-11-02

申请号：US16374405

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Jing Sun

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may transmit, to a user equipment (UE) for a beam sweeping procedure, at least one downlink control channel associated with at least one beam. The BS may receive, based at least in part on transmitting the at least one downlink control channel, feedback information relating to the at least one downlink control channel. The UE may receive at least one downlink control channel associated with at least one beam. The UE may transmit feedback information relating to the at least one downlink control channel. Numerous other aspects are provided.

公开(公告)号：US11121758B2

公开(公告)日：2021-09-14

申请号：US16737697

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W76/00 ,  H04W74/08 ,  H04W72/04 ,  H04L5/00 ,  H04W76/11 ,  H04W24/10 ,  H04W72/14 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for radio link recovery procedure enhancements in wireless communication systems. In some cases, radio link recovery may be enhanced (e.g., sped up and network congestion reduced) by allowing a user equipment (UE) to use an additional secondary cell (SCell) serving the UE to assist in beam recovery when a layer one (L1) event is detected on a primary cell (PCell) or primary secondary cell (PSCell) of the UE.

公开(公告)号：US11109380B2

公开(公告)日：2021-08-31

申请号：US16291579

申请日：2019-03-04

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Sony Akkarakaran ,  Tao Luo ,  Yan Zhou ,  Xiao Feng Wang ,  Wooseok Nam ,  Abhishek Sinha

IPC: H04W72/04 ,  H04B7/0417 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. One method may include receiving, by a user equipment (UE) in a downlink shared data channel, a beam switch command instructing the UE to switch from a first uplink control beam to a second uplink control beam. The UE may select an uplink control beam to transmit acknowledgment feedback based on whether decoding the beam switch command is successful, and transmit, in an uplink control channel via the selected uplink control beam, the acknowledgment feedback indicating whether decoding the beam switch command was successful.

公开(公告)号：US11089487B2

公开(公告)日：2021-08-10

申请号：US16261084

申请日：2019-01-29

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Wooseok Nam

IPC: H04W16/28 ,  H04B7/024 ,  H04B7/0408 ,  H04W24/10 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04B7/08 ,  H04B7/0413

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a characteristic of a first beam associated with a first antenna array, determine a second beam associated with a second antenna array as a quasi-co-located beam with respect to the first beam based on the characteristic, and communicate on the first and second beams based on the determining. A base station may identify a user equipment (UE) searching for a connection with a secondary cell on a second frequency band, wherein the UE is served by the base station on a first frequency band and transmit an indicator to the UE to inform the UE regarding selection of a particular beam for measuring a reference signal from the secondary cell.

公开(公告)号：US11057166B2

公开(公告)日：2021-07-06

申请号：US16267298

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Shengbo Chen ,  Yan Zhou

IPC: H04W4/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/00 ,  H04L27/26 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify time and frequency resources for a physical downlink shared channel (PDSCH) to be transmitted to a user equipment (UE) in a first transmission time interval (TTI). The base station may transmit configuration information for a control channel search space set in a second TTI. The second TTI may precede the first TTI. The configuration information may include an indication of an absence of a physical downlink control channel (PDCCH) transmission to send in the control channel search space set indicating the identified time and frequency resources for the PDSCH, and a set of time and frequency resources for the control channel search space set. The UE may receive the configuration information and identify the time and frequency resources allocated for the PDSCH in the second TTI, and receive the PDSCH transmission in the second TTI.

公开(公告)号：US20210203384A1

公开(公告)日：2021-07-01

申请号：US17199088

申请日：2021-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Kaushik Chakraborty

IPC: H04B7/0408 ,  H04B7/0413 ,  H04W72/04 ,  H04B7/08 ,  H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.

公开(公告)号：US20210184740A1

公开(公告)日：2021-06-17

申请号：US17187500

申请日：2021-02-26

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Srinivas Yerramalli ,  Tao Luo ,  Sumeeth Nagaraja ,  Sony Akkarakaran

IPC: H04B7/06 ,  H04W24/10 ,  H04W72/04 ,  H04W76/38

Abstract: Methods, systems, and devices for wireless communications are described techniques provide for the identification of a sequence of beamforming parameters that are used for communications between a user equipment (UE) and a base station using a sequence of transmission beams. A UE may measure received reference signals that are transmitted in a series of downlink transmission beams from a base station, and report measurement parameters associated with the downlink transmission beams to the base station as part of a beam tracking and beam refinement procedure. The base station may provide transmission configuration indicator (TCI) states that are associated with each transmission beam. The TCI states may be recorded over a course of a periodic movement of the UE, and may be used deterministically to identify beamforming parameters for transmission and reception of a subsequent series of downlink transmission beams when the UE makes a subsequent same periodic movement.

公开(公告)号：US11038646B2

公开(公告)日：2021-06-15

申请号：US16014940

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Jing Sun ,  Heechoon Lee ,  Makesh Pravin John Wilson

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a shared demodulation reference signal (DMRS) configuration for a plurality of resource blocks of a channel, wherein a frequency domain associated with the plurality of resource blocks overlaps for a control resource of the channel and a data resource of the channel, and wherein the plurality of resource blocks are associated with a shared precoding scheme. The device may transmit a DMRS based at least in part on determining the shared DMRS configuration to enable a receiver to receive the plurality of resource blocks of the channel. Numerous other aspects are provided.

公开(公告)号：US11038643B2

公开(公告)日：2021-06-15

申请号：US16281329

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Juergen Cezanne ,  Muhammad Nazmul Islam ,  Navid Abedini ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sony Akkarakaran ,  Alexandras Manolakos

IPC: H04L5/00 ,  H04W74/08 ,  H04L12/24 ,  H04B7/06 ,  H04B7/08 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment and/or a base station, may determine that an active transmit beam has changed from a first transmit beam to a second transmit beam, the second transmit beam being different from the first transmit beam. The wireless device may identify a reference signal identifier that is associated with the second transmit beam. The wireless device may update, based at least in part on the identifying, a channel state information (CSI) resource setting to include the reference signal identifier, wherein the CSI resource setting is associated with the active transmit beam.