公开(公告)号：US20220394800A1

公开(公告)日：2022-12-08

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 ,  H04W76/15 ,  H04W72/12 ,  H04W16/28

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：US11483835B2

公开(公告)日：2022-10-25

申请号：US17248162

申请日：2021-01-12

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Ling Ding ,  Sony Akkarakaran ,  Kiran Venugopal ,  Tianyang Bai ,  Junyi Li ,  Tao Luo

IPC: H04W72/04 ,  H04B7/0408

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit, to a second node on a beamformed link from the first node to the second node, a first signal, wherein the first node and the second node are associated with common timing; determine whether a second signal, based at least in part on the first signal, is received on a beamformed link from the second node to the first node; and transmit a third signal based at least in part on receiving the second signal or perform a sidelink beam failure recovery procedure based at least in part on determining that the second signal is not received. Numerous other aspects are provided.

公开(公告)号：US11457496B2

公开(公告)日：2022-09-27

申请号：US16995552

申请日：2020-08-17

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.

公开(公告)号：US11456790B2

公开(公告)日：2022-09-27

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: H04B7/02 ,  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：US11375507B2

公开(公告)日：2022-06-28

申请号：US16515807

申请日：2019-07-18

Applicant: QUALCOMM Incorporated

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

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

Abstract: Methods, apparatuses, and computer-readable mediums for wireless communication are disclosed by the present disclosure. In an example, a user equipment (UE) communicates with a base station on different uplink (UL) and downlink (DL) beam paths. In the example, the UE may indicate to the base station a preferred beam path to use. The UE may indicate the preferred beam path in response to an explicit request from the base station or without an explicit request. The use of different UL/DL beam paths allow beam paths which avoid interference from a user of the UE to be used.

公开(公告)号：US11330620B2

公开(公告)日：2022-05-10

申请号：US16413103

申请日：2019-05-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit to a base station an indication of a UE capability associated with a beam change at the UE. The UE may receive, from the base station during a scheduling slot, a control signal including a transmission configuration indicator (TCI) and a grant for a transport block over a first slot aggregation including a set of slots. In some cases, each slot of the first slot aggregation is offset from the scheduling slot according to a scheduling constraint based on the indicated UE capability. The UE may transmit or receive the transport block over the first slot aggregation using a UE beam based on the TCI.

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：US20220006689A1

公开(公告)日：2022-01-06

申请号：US17365891

申请日：2021-07-01

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Vasanthan Raghavan ,  Qian Zhang ,  Tianyang Bai ,  Kiran Venugopal

IPC: H04L12/24 ,  H04W72/04 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a user equipment (UE) detects a beam failure of a first beam for a first component carrier (CC) based on a link quality associated with the first beam for the first CC. The first CC and a second CC are within a same group of CCs. The UE initiates one or more beam failure recovery operations associated with any CC within the same group of CCs as the first and second CCs based on a determination of a beam failure of a second beam for the second CC. The determination is based on the detection of the beam failure for the first CC and based on the first CC and the second CC being within the same group of CCs.

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：US11191031B2

公开(公告)日：2021-11-30

申请号：US16803835

申请日：2020-02-27

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 ,  H04W72/04

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.