公开(公告)号：US10999110B2

公开(公告)日：2021-05-04

申请号：US16011880

申请日：2018-06-19

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Bin Tian ,  Alfred Asterjadhi ,  George Cherian

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12

Abstract: Techniques are described herein that illustrate a feedback system to configure various format parameters of physical layer convergence procedure protocol data units (PPDUs) transmitted across a communication link. A receiving device may determine a Doppler shift or a delay spread of a signal received from a transmitting device. The receiving device may determine one or more format parameters for a future PPDU based on the Doppler shift or the delay spread. The receiving device may transmit an indication that includes the format parameters for the future PPDU to the transmitting device. The transmitting device may modify one or more format parameters of a PPDU based on the information in the indication. In some cases, the receiving device may indicate characteristics of mid-ambles, a type of PPDU, a guard interval, high efficiency long training field size for a future PPDU.

公开(公告)号：US20210126761A1

公开(公告)日：2021-04-29

申请号：US17062845

申请日：2020-10-05

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may indicate a group of component carriers (CCs) or frequency bands that share quasi co-location (QCL) information. For example, a base station may indicate a set of CCs to a UE. The UE may report, to the base station, a group of CCs, bandwidth parts (BWPs), or both that share a QCL property. For example, the report may include a list of CCs, frequency bands, BWPs, frequency ranges (FRs), or some combination thereof sharing the same QCL property, or the report may indicate whether the CCs in a band share the same QCL property. Based on this report, the base station may activate a transmission configuration indicator (TCI) state at the UE, where the UE may activate the TCI state across the group of CCs, BWPs, or both sharing the same QCL property.

公开(公告)号：US10973034B2

公开(公告)日：2021-04-06

申请号：US16681508

申请日：2019-11-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/10 ,  H04W24/08 ,  H04W72/08 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may configure a user equipment (UE) with multiple control resource sets (CORESETs) for control channel monitoring. In some cases (e.g., based on a random access (RACH) procedure), the base station may update a CORESET with an updated downlink beam and, correspondingly, an updated active quasi-co-location (QCL) assumption for monitoring. In some cases, this updated active QCL assumption may cause the total number of active QCL assumptions to exceed a UE threshold value for monitoring. The UE may determine a priority order for monitoring the CORESETs, where the CORESET corresponding to the updated active QCL is assigned highest priority and the remaining CORESETs are prioritized based on CORESET or search space parameters, and the UE may either drop CORESETs from monitoring or modify active QCL assumptions for CORESETs based on the determined priority order.

公开(公告)号：US10959232B2

公开(公告)日：2021-03-23

申请号：US16378099

申请日：2019-04-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W72/04 ,  H04B17/309 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal identifying a first beam configuration and a second beam configuration to be used for performing a beamformed transmission of a physical uplink control channel (PUCCH) signal. The UE may determine, for a first PUCCH transmission occasion associated with the first beam configuration, that a communication metric associated with performing the beamformed transmission of the PUCCH signal using the first beam configuration fails to satisfy a threshold. The UE may perform, at a second PUCCH transmission occasion and based at least in part on the determining, the beamformed transmission of the PUCCH signal according to the second beam configuration.

公开(公告)号：US20210084510A1

公开(公告)日：2021-03-18

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: H04W24/08 ,  H04L5/00

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.

公开(公告)号：US20210076269A1

公开(公告)日：2021-03-11

申请号：US17012911

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Olufunmilola Omolade Awoniyi-Oteri ,  Tao Luo ,  Yan Zhou ,  Wooseok Nam ,  Hung Dinh Ly

IPC: H04W36/00 ,  H04W28/04 ,  H04W36/08 ,  H04W36/30 ,  H04L29/06 ,  H04L1/08 ,  H04L12/24 ,  H04W76/20 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a dual active link handover procedure from a source base station to a target base station. During the dual active link handover procedure, the UE may have connections to both of the base stations concurrently. In such cases, transmission opportunities for communicating with the base stations may conflict. To handle conflicting transmission opportunities, the UE may drop a monitoring occasion or a packet reception for a base station based on prioritization rules. In some cases, to mitigate packet losses, the base station may configure re-transmissions or slot aggregation to provide the UE with additional opportunities to receive a packet. Additionally or alternatively, the UE may transmit a notification message to a base station indicating dropped monitoring occasions or packets.

公开(公告)号：US20210067205A1

公开(公告)日：2021-03-04

申请号：US16913777

申请日：2020-06-26

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yan Zhou ,  Parisa Cheraghi ,  Tao Luo

IPC: H04B7/024 ,  H04L5/00 ,  H04W80/02 ,  H04W56/00 ,  H04W72/04 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via a first component carrier, control information that triggers transmission of an aperiodic reference signal in a second component carrier. The UE may identify a quasi co-location (QCL) assumption for reception of the aperiodic reference signal in the second component carrier based at least in part on a control resource set not being configured for the second component carrier. The UE may then monitor for the aperiodic reference signal of the second component carrier based on the QCL assumption. In some cases, the UE may transmit a measurement report to a base station based on a measurement of the reference signal.

公开(公告)号：US10939282B2

公开(公告)日：2021-03-02

申请号：US16281522

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W8/22 ,  H04W88/02

Abstract: Certain aspects of the present disclosure provide techniques for selecting a default value for one or more User Equipment (UE) parameters when a UE is configured for Medium Access Control-Control Element (MAC-CE) based UE parameter value selection. The UE detects at least one condition relating to a candidate list of values associated with a set of UE parameters, wherein a value of each UE parameter in the set is selected from the candidate list and received by the UE via a MAC-CE. In response to the detection, the UE determines a default value for at least one UE parameter from the set and performs at least one operation corresponding to the at least one UE parameter after setting the default value.

公开(公告)号：US20210051651A1

公开(公告)日：2021-02-18

申请号：US16993023

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Yan Zhou ,  Tao Luo ,  Ruiming Zheng ,  Gavin Bernard Horn

IPC: H04W72/04 ,  H04W72/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may select a beam from a set of beams and transmit an indication of the selected beam in a media access control (MAC) control element to establish a communication link with a base station. In some cases, the UE may select the beam and indicate the selection based on identifying a beam failure and/or determining to perform a random access procedure. When transmitting the indication of the selected beam, the UE may obtain an uplink resource for the transmission based on an availability of the uplink resource. For example, if the uplink resource is available, the UE may transmit the indication of the selected beam multiplexed with an uplink transmission. Alternatively, if the uplink resource is unavailable, the UE may request uplink resources for transmitting the indication of the selected beam.

公开(公告)号：US20210051563A1

公开(公告)日：2021-02-18

申请号：US17072795

申请日：2020-10-16

Applicant: Qualcomm Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Venkata Ramanan Venkatachalam Jayaraman ,  George Cherian ,  Simone Merlin

IPC: H04W40/02 ,  H04L29/12 ,  H04L12/709 ,  H04B1/16 ,  H04L29/06 ,  H04B1/04 ,  H04L1/16 ,  H04W76/14 ,  H04W76/15 ,  H04L5/00 ,  H04W28/02 ,  H04W28/06 ,  H04W48/16 ,  H04W52/02 ,  H04L29/08 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify an aggregation capability to communicate in parallel over a plurality of wireless links. The wireless device may in some cases broadcast this aggregation capability (e.g., periodically). Additionally or alternatively, the wireless device may transmit the aggregation capability in response to a request received from another wireless device. In some cases, the first wireless device may transmit a request to a second wireless device inquiring about aggregation capabilities of the second wireless device. The second wireless device may respond with its aggregation capabilities (e.g., or may broadcast its aggregation capabilities independently of receiving the response). The wireless devices may establish a multi-link session based at least in part on the indicated aggregation capabilities.