公开(公告)号：US11018750B2

公开(公告)日：2021-05-25

申请号：US16727678

申请日：2019-12-26

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04W76/19 ,  H04W24/10 ,  H04W36/06 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to cell recovery techniques. One example method generally includes receiving, at a user-equipment (UE), at least one pilot signal via a secondary cell, receive, via a primary cell, a first message triggering reporting of at least one preferred beam for communication via the secondary cell, determining the preferred beam based on the at least one pilot signal, transmitting, via the primary cell, a report indicating the at least one preferred beam, and communicating data via the secondary cell and via the preferred beam.

公开(公告)号：US20210135714A1

公开(公告)日：2021-05-06

申请号：US17088366

申请日：2020-11-03

Applicant: QUALCOMM Incorporated

Inventor： Hamed Pezeshki ,  Arumugam Chendamarai Kannan ,  Tao Luo ,  Yan Zhou ,  Wooseok Nam ,  Kiran Venugopal

IPC: H04B7/0417 ,  H04B7/06 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04B7/0456

Abstract: In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), data from one or more beam pairs of a plurality of beams at least partially concurrently; determining, by the UE, one or more signal parameters for the one or more beam pairs; determining, by the UE, one or more joint quasi co-located (QCL) indicators for the one or more beam pairs and one or more non-joint QCL indicators for the one or more beam pairs; and transmitting, by the UE, a measurement report including the one or more joint QCL indicators and the one or more non-joint QCL indicators. In another aspect, a method of wireless communication includes determining a particular beam or beams for transmitting second data based on the measurement report; and transmitting the second data using the particular beam or beams. Other aspects and features are also claimed and described.

公开(公告)号：US10998955B2

公开(公告)日：2021-05-04

申请号：US16802021

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W72/04 ,  H04W80/02 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a downlink beam indication for at least one of a channel, a resource, a resource set, a bandwidth part, or a component carrier; and use the downlink beam indication for a group of channels, resources, resource sets, bandwidth parts, or component carriers. In some aspects, a UE may receive an indication of a spatial relation and multiple physical uplink control channel (PUCCH) resources to which the spatial relation is to be applied; and use the spatial relation to transmit on one or more PUCCH resources of the multiple PUCCH resources. Numerous other aspects are provided.

公开(公告)号：US10973044B1

公开(公告)日：2021-04-06

申请号：US16805674

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/04 ,  H04W80/02 ,  H04L25/02 ,  H04L5/00

Abstract: The apparatus determines, for a CC, an active TCI state of at least one of a CORESET of a PDCCH when the CORESET is configured on the CC or a PDSCH. In addition, the apparatus determines, based on the determined active TCI state, a default beam on the CC for transmitting at least one of a PUCCH or SRS. Further, the apparatus transmits at least one of the PUCCH or the SRS through the determined default beam on the CC.

公开(公告)号：US20210092721A1

公开(公告)日：2021-03-25

申请号：US17115499

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, via a first carrier, an indication of an offset for scheduling a reference signal on a second carrier, wherein the offset indicates a duration between downlink control information (DCI), that schedules the reference signal, and the reference signal; determine a first numerology of the first carrier and a second numerology of the second carrier; and determine a time offset for the reference signal based at least in part on the offset and at least one of the first numerology, the second numerology, or both the first numerology and the second numerology. Numerous other aspects are provided.

公开(公告)号：US20210084625A1

公开(公告)日：2021-03-18

申请号：US17019002

申请日：2020-09-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communications are described in which different component carriers (CCs) or bandwidth parts (BWPs) of a system operating according to carrier aggregation may be configured with different transmission configuration indicator (TCI) states. A base station may transmit control information to a user equipment (UE) to activate two or more CCs, and that indicates two or more different sets of TCI states that are activated for the two or more CCs. The control information may be transmitted to the UE in a single MAC-CE. The single MAC-CE to activate different sets of TCI states at CCs or BWPs may allow for a reduced number of MAC-CEs used for conveying the set of active TCI states for the CCS or BWPs.

公开(公告)号：US10945149B1

公开(公告)日：2021-03-09

申请号：US16802730

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/0417 ,  H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04B17/336

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that configures a channel measurement resource and an interference measurement resource within a same time interval. The UE may transmit a measurement report that indicates a signal to interference plus noise ratio (SINR) measurement that is generated based on measuring the channel measurement resource and the interference measurement resource. In some cases, the UE may receive a quasi co-location (QCL) relationship indicator that indicates a QCL relationship for the interference measurement resource or the channel measurement resource. The UE may measure the channel measurement resource and the interference measurement resource in accordance with the QCL relationship.

公开(公告)号：US20210068188A1

公开(公告)日：2021-03-04

申请号：US17002549

申请日：2020-08-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/19 ,  H04L5/00 ,  H04W24/04

Abstract: Aspects for user equipment (UE) based beam selection for beam failure recovery operations are disclosed. In one aspect, a method of wireless communication includes: identifying a beam failure event associated with a first beam and a secondary cell and transmitting a beam failure recovery request for the secondary cell. The method further includes selecting a second beam for secondary cell communications prior to receiving a response to the beam failure event, and transmitting or receiving a communication to or from the secondary cell using the selected second beam. Other aspects and features are also claimed and described.

公开(公告)号：US20210050893A1

公开(公告)日：2021-02-18

申请号：US16991808

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Kiran Venugopal ,  Tianyang Bai ,  Wooseok Nam ,  Tao Luo

IPC: H04B7/06 ,  H04B7/0417 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described for multiple-input multiple-output (MIMO) millimeter wave (mmW) communications of two or more MIMO streams via two or more beams. A sequential technique may be used for configuring MIMO communications, in which analog RF beamforming parameters are determined based on reference signal measurements during a beam sweeping procedure. Then, digital baseband beamforming parameters may be determined and used for baseband processing of two or more MIMO streams. The digital baseband beamforming parameters may include baseband precoding parameters used for transmitting the two or more MIMO streams on the two or more beams, and baseband combiner parameters used for receiving the two or more MIMO streams on the two or more beams.

公开(公告)号：US10813157B1

公开(公告)日：2020-10-20

申请号：US16805406

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/19 ,  H04W16/28 ,  H04W76/15 ,  H04W72/12

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.