公开(公告)号：US20210377984A1

公开(公告)日：2021-12-02

申请号：US17321771

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Mostafa Khoshnevisan

IPC: H04W72/12 ,  H04W72/04 ,  H04W8/24 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control message that schedules a downlink signal on a second carrier for the UE. The UE may determine a transmission scheme of a plurality of transmission schemes based at least in part on the first carrier, the second carrier, and a second transmission reception point scheduled for transmission of the downlink signal. The UE may determine a delay between the downlink control message and the downlink signal based at least in part on the transmission scheme and receive the downlink signal via the second carrier in accordance with the determined delay.

公开(公告)号：US20210359812A1

公开(公告)日：2021-11-18

申请号：US17318985

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a UE capability to receive a first portion of a tracking reference signal (TRS) and a second portion of the TRS, the first portion and the second portion associated with a TRS pattern. The UE may receive, from the base station, an indication of the TRS pattern, where the TRS pattern includes the first portion of the TRS pattern and the second portion of the TRS pattern. The UE may receive one or more TRSs according to the first portion of the TRS pattern and the second portion of the TRS pattern.

公开(公告)号：US20210321382A1

公开(公告)日：2021-10-14

申请号：US17225890

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Zhifei Fan ,  Juan Montojo ,  Sungwoo Park ,  Ahmed Abdelaziz Ibrahim A Zewall

IPC: H04W72/04 ,  H04W8/22

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a beam switching capability for a subcarrier spacing for communications between the UE and a base station. In one example, the beam switching capability may indicate a quantity of beam switches for a plurality of slots of a transmission time interval. In another example, the capability may indicate a threshold quantity of symbol periods between beam switching operations associated with the subcarrier spacing, or a beam switching time for the subcarrier spacing, or both. The UE may determine, for the identified beam switching capability, one or more parameter values that indicate the identified beam switching capability. The parameters may explicitly or implicitly indicate the identified capability. The UE may also transmit the determined one or more parameter values to the base station and communicate with the base station according to the identified beam switching capability.

公开(公告)号：US20210258928A1

公开(公告)日：2021-08-19

申请号：US17174242

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Sungwoo Park ,  Arumugam Chendamarai Kannan ,  Wooseok Nam

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message indicating that a control resource set for a downlink control channel is associated with a plurality of demodulation reference signal (DMRS) ports. The UE may determine, based at least in part on the configuration message, that a first set of DMRS resource elements in a first symbol of the control resource set correspond to a first DMRS port of the plurality of DMRS ports and a second set of DMRS resource elements in a second symbol of the control resource set correspond to a second DMRS port of the plurality of DMRS ports. The UE may decode the downlink control channel based at least in part on the determining.

公开(公告)号：US20210160842A1

公开(公告)日：2021-05-27

申请号：US16952946

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04B7/0413

Abstract: Discussed is wireless communication that includes beam failure detection and recovery for high priority or broadcast CORESETs performed in wireless communication systems to effectuate an overall improvement in wireless communication. In some aspects, a mobile device may monitor one or more first reference signals associated with wireless communication performed using one or more first reception beams. The mobile device may also monitor one or more second reference signals associated with wireless communication performed using one or more second reception beams. The mobile device may detect a failure in wireless communication performed using the one or more first reception beams based, at least in part, on the monitoring of the one or more first reference signals. The mobile device may also initiate a beam failure recovery procedure for the one or more first reception beams upon detecting the failure in wireless communication performed using the one or more first reception beams.

公开(公告)号：US20210007117A1

公开(公告)日：2021-01-07

申请号：US16915259

申请日：2020-06-29

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Arumugam Chendamarai Kannan ,  Tao Luo ,  Srinivas Yerramalli ,  Vinay Chande ,  Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang ,  Wooseok Nam

IPC: H04W72/12 ,  H04L27/26 ,  H04L12/24 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems implementing beamforming, a neighboring base station may cause interference to a user equipment (UE) served by a different base station. To mitigate unexpected interference, an interference coordination region including time and frequency resources may be configured between the base stations. The interference coordination region may be configured based on long-term information for the base stations and may include one or both of a set of beam-avoidance sub-regions or a set of beam-preference sub-regions for a base station, where each sub-region is associated with a beam index. A base station may schedule a communication beam in the interference coordination region based on a beam-avoidance region (e.g., refraining from using a particular communication beam) or a beam-preference region (e.g., prioritizing a particular communication beam). The base station may transmit a message to a UE using the scheduled communication beam.

公开(公告)号：US20200288474A1

公开(公告)日：2020-09-10

申请号：US16708265

申请日：2019-12-09

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Wooseok Nam

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A first transceiver node of a set of transceiver nodes may transmit a control message (e.g., downlink control information (DCI)) to a user equipment (UE). Upon receiving the control message, the UE may switch from a first bandwidth part (BWP) configuration for the first transceiver node to a second BWP configuration for the first transceiver node. Additionally, the UE may switch from BWP configurations for other transceiver nodes of the set of transceiver nodes. Upon switching from the first BWP configuration, the UE may start a timer and may switch from the second BWP configuration to a third BWP configuration upon expiration of the timer. The timer may be restarted each time the UE receives a communication from any of the set of transceiver nodes, a subset of the set of transceiver nodes, or from the first transceiver node.

公开(公告)号：US12302353B2

公开(公告)日：2025-05-13

申请号：US18192075

申请日：2023-03-29

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Sungwoo Park ,  Arumugam Chendamarai Kannan ,  Wooseok Nam

IPC: H04W72/23 ,  H04B7/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message indicating that a control resource set for a downlink control channel is associated with a plurality of demodulation reference signal (DMRS) ports. The UE may determine, based at least in part on the configuration message, that a first set of DMRS resource elements in a first symbol of the control resource set correspond to a first DMRS port of the plurality of DMRS ports and a second set of DMRS resource elements in a second symbol of the control resource set correspond to a second DMRS port of the plurality of DMRS ports. The UE may decode the downlink control channel based at least in part on the determining.

公开(公告)号：US12241959B2

公开(公告)日：2025-03-04

申请号：US17362147

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Xiaoxia Zhang ,  Peter Gaal ,  Taesang Yoo ,  Simone Merlin ,  Srinivas Yerramalli ,  John Edward Smee

IPC: G01S13/00 ,  G01S13/72 ,  H04B17/27

Abstract: Techniques are provided for managing transmit and receive beams in a millimeter wave (mmW) communication system for use in bistatic radio frequency (RF) sensing. An example method of tracking targets with bistatic radio frequency sensing includes receiving one or more sensing reference signals, generating a signal report based at least in part on the one or more sensing reference signals, transmitting the signal report, receiving tracking signal configuration information, receiving one or more tracking reference signals identified in the tracking signal configuration information, and tracking one or more targets associated with the one or more tracking reference signals.

公开(公告)号：US20240298328A1

公开(公告)日：2024-09-05

申请号：US18662054

申请日：2024-05-13

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.