公开(公告)号：US20210226688A1

公开(公告)日：2021-07-22

申请号：US16953161

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Tao LUO ,  Xiaoxia ZHANG ,  Yan ZHOU

IPC: H04B7/08 ,  H04B7/024 ,  H04W72/04 ,  H04W80/02 ,  H04W76/27

Abstract: Default QCL assumptions for UEs and base stations to apply after identifying a new beam in response to beam failure detection are provided for single-DCI multi-TRP communication. In one aspect, a default QCL assumption for PDSCH after beam failure detection may be applied based on TCI states corresponding to a lowest codepoint among the TCI codepoints containing two different states. In another aspect, a default QCL assumption for PDSCH after beam failure detection may be applied based on at least one of: a lowest CORESET-ID in a latest monitored slot, a selected RS index during beam failure recovery, CORESET-0, or a first TCI state corresponding to the lowest TCI codepoint indicating two TCI states. Additionally, default QCL assumptions for UEs and base stations to apply during beam failure recovery are provided for single-DCI multi-TRP communication when the UE is not configured with a set of beam failure detection resources.

公开(公告)号：US20210195626A1

公开(公告)日：2021-06-24

申请号：US17126820

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Tianyang BAI ,  Tao LUO ,  Junyi LI

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

Abstract: Certain aspects of the present disclosure provide techniques for determining default parameters to use in the absence of a signaled uplink transmission configuration indicator (TCI) state for uplink transmissions. In some cases, a UE may determine, based on one or more rules, at least one of a default uplink beam or default path loss reference signal (PL RS) to use an uplink transmission in the absence of a signaled uplink transmission configuration indicator (TCI) state for the uplink transmission; and send the uplink transmission in accordance with the determination.

公开(公告)号：US20210195570A1

公开(公告)日：2021-06-24

申请号：US16949537

申请日：2020-11-02

Applicant: QUALCOMM Incorporated

Inventor： Qian ZHANG ,  Yan ZHOU ,  Tao LUO

IPC: H04W72/04 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may identify a cell that has been selected for serving a UE. The base station may provide a joint indication including information associated with the cell that has been selected for serving the UE, and information associated with at least one of: one or more beams to be used for the cell, or one or more path loss reference signals to be used for the cell. Numerous other aspects are provided.

公开(公告)号：US20210195512A1

公开(公告)日：2021-06-24

申请号：US16949536

申请日：2020-11-02

Applicant: QUALCOMM Incorporated

Inventor： Qian ZHANG ,  Yan ZHOU ,  Tao LUO

IPC: H04W48/20 ,  H04W48/16 ,  H04W76/11 ,  H04W76/27 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may identify a plurality of cells associated with serving a user equipment (UE), where each cell of the plurality of cells has been either selected for serving the UE or deselected for serving the UE. The first wireless communication device may transmit an indication of the plurality of cells associated with serving the UE to a second wireless communication device, where the indication includes information indicating whether each cell of the plurality of cells has been selected for serving the UE or has been deselected for serving the UE. Numerous other aspects are provided.

公开(公告)号：US20210194558A1

公开(公告)日：2021-06-24

申请号：US17125865

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Yan ZHOU ,  Wooseok NAM ,  Arumugam CHENDAMARAI KANNAN ,  Juergen CEZANNE ,  Junyi LI ,  Tao LUO

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00

Abstract: A UE may determine that two or more resources on two or more beams from a base station have phase continuity. The UE may determine, based on the two or more resources on the two or more beams having the phase continuity, a joint channel information associated with the two or more beams using individual measurements respectively corresponding to the two or more beams. The UE may then transmit, to the base station, a group-based beam report including the joint channel information. The base station may provide the UE with an indication that the two or more resources on the two or more beams from the base station have phase continuity. The base station may receive the group-based beam report from the UE based on the indication, and the base station may configure communication with the UE on a joint channel based on the group-based beam report.

公开(公告)号：US20210185689A1

公开(公告)日：2021-06-17

申请号：US17115648

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Qian ZHANG

IPC: H04W72/04 ,  H04W24/10 ,  H04W56/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a new beam ready time that indicates a time at which a beam is to be ready for use in communicating with a base station. The beam may be activated by a downlink control information based beam activation command received by the UE. The UE may communicate with the base station using the beam after the new beam ready time. Numerous other aspects are provided.

公开(公告)号：US20210185646A1

公开(公告)日：2021-06-17

申请号：US16948156

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Qian ZHANG

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that includes a downlink and/or uplink beam activation command or a reference signal activation command. The UE may apply the downlink and/or uplink beam activation command or the reference signal activation command included in the DCI according to an action time that is based at least in part on a quantity of symbols after an event related to reception of the DCI. Numerous other aspects are provided.

公开(公告)号：US20210144744A1

公开(公告)日：2021-05-13

申请号：US17091866

申请日：2020-11-06

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Tao LUO ,  Hamed PEZESHKI ,  Arumugam CHENDAMARAI KANNAN ,  Jing SUN ,  Xiao Feng WANG

IPC: H04W72/12 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for indicating transmission configuration indication (TCI) states for multiple component carriers (CCs).

公开(公告)号：US20210135741A1

公开(公告)日：2021-05-06

申请号：US16949233

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Tao LUO ,  Arumugam CHENDAMARAI KANNAN ,  Hamed PEZESHKI

IPC: H04B7/08 ,  H04B7/0408 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, based at least in part on a determination that a scheduling offset is less than a beam switching latency threshold, a set of beams for communicating with a set of transmit-receive points (TRPs), that use single downlink control information for scheduling, based at least in part on at least one of a transmission configuration indicator codepoint mapping or a control resource set configuration. The UE may communicate with the set of TRPs using the set of beams based at least in part on determining the set of beams. Numerous other aspects are provided.

公开(公告)号：US20210126693A1

公开(公告)日：2021-04-29

申请号：US16949215

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Yan ZHOU ,  Jung Ho RYU ,  Kiran VENUGOPAL ,  Tao LUO ,  Junyi LI

IPC: H04B7/06 ,  H04W76/19 ,  H04W72/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a beam failure associated with a cell of a plurality of cells. The UE may selectively transmit a beam failure recovery request (BFRQ) communication for the cell based at least in part on a determination of whether a threshold time period has elapsed since a previous BFRQ communication was transmitted for the cell or another cell of the plurality of cells. Numerous other aspects are provided.