公开(公告)号：US20210153277A1

公开(公告)日：2021-05-20

申请号：US17095476

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Andrzej PARTYKA ,  Junyi LI ,  Kapil GULATI ,  Jung Ho RYU ,  Tianyang BAI

IPC: H04W76/15 ,  H04W24/08 ,  H04L5/14 ,  H04W16/28 ,  H04L12/26

Abstract: Aspects described herein relate to determining, by a node, to establish a first backhaul connection with a first upstream node for access link communications with a first downstream node, determining, by the node, to establish a second backhaul connection with a second upstream node for access link communications with a second downstream node, establishing the first backhaul connection with the first upstream node based on a first transmit/receive beam pair, and establishing the second backhaul connection with the second upstream node based on a second transmit/receive beam pair and while the first backhaul connection is established with the first upstream node.

公开(公告)号：US20210153239A1

公开(公告)日：2021-05-20

申请号：US17098653

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Wooseok NAM ,  Sungwoo PARK ,  Jung Ho RYU ,  Kiran VENUGOPAL ,  Tao LUO ,  Junyi LI

IPC: H04W72/12 ,  H04L29/08 ,  H04L12/18 ,  H04B7/06

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.

公开(公告)号：US20210143894A1

公开(公告)日：2021-05-13

申请号：US17006300

申请日：2020-08-28

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Juergen CEZANNE ,  Vasanthan RAGHAVAN ,  Jung Ho RYU ,  Ashwin SAMPATH ,  Junyi LI

IPC: H04B7/155 ,  H04L25/03

Abstract: Systems, apparatuses, and methods for enhancement for amplify-and-forward relay. Instead of merely passing received signal from a source, relay may equalize the received signal based on reference signal contained in the received signal, before amplifying and transmitting the signal to a destination. Compared to amplify-and-forward, equalize-and-forward may compensate the received source signal for various imperfections such as channel distortions and phase errors, using demodulation reference signal and phase tracking reference signal. The relay may apply Fast Fourier Transform (FFT) to equalize the signal in tone domain.

公开(公告)号：US20210136762A1

公开(公告)日：2021-05-06

申请号：US17083049

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok NAM ,  Tao LUO ,  Mostafa KHOSHNEVISAN ,  Kiran VENUGOPAL ,  Tianyang BAI ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04B17/382 ,  H04W24/10

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a network entity from a user equipment (UE), a measurement report, wherein the network entity corresponds to a serving network entity; and determining, by the network entity, a single frequency network (SFN) network entity group for the UE based on the measurement report, wherein the SFN network entity group corresponds to a one or more neighbor network entities designated for transmitting SFN data to the UE.

公开(公告)号：US20210136598A1

公开(公告)日：2021-05-06

申请号：US17087410

申请日：2020-11-02

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Mohammad Ali TASSOUDJI ,  Yu-Chin OU ,  Kobi RAVID ,  Ozge KOYMEN ,  Juergen CEZANNE ,  Junyi LI ,  Kapil GULATI ,  Jung Ho RYU ,  Tianyang BAI

IPC: H04W16/28 ,  H04B7/06 ,  H04L5/00 ,  H04B17/318 ,  H04B7/0456

Abstract: The present disclosure relates to dynamic antenna array reconfiguration and signaling in millimeter wave bands. A user equipment (UE) may detect an antenna array change condition. The UE may transmit a request for beam training for an antenna array configuration in response to the detecting. The request for beam training may include a requested antenna array configuration for the UE and an indication of beam weights to use with the requested antenna array configuration. A base station may determine whether to grant or deny the requested antenna array configuration for the UE. The UE may receive, from the base station, an indication of an antenna array configuration for the UE. The base station may transmit the number of reference signals as a set of contiguous channel state information reference signals (CSI-RS). The UE may train the reconfigured active antenna array configuration based on the reference signals.

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.

公开(公告)号：US20210112433A1

公开(公告)日：2021-04-15

申请号：US16948963

申请日：2020-10-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04B17/309

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may determine a configuration for differential layer 1 (L1) signal to interference noise ratio (L1-SINR) reporting; transmit, to a user equipment (UE), an indicator of the configuration for differential L1-SINR reporting; and receive, from the UE, one or more differential L1-SINR reports in accordance with the configuration for differential L1-SINR reporting. Numerous other aspects are provided.

公开(公告)号：US20210111780A1

公开(公告)日：2021-04-15

申请号：US16801899

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W72/04 ,  H04W76/18

Abstract: Certain aspects of the present disclosure provide techniques for configuring beam failure recovery operations. A method includes performing beam failure detection of a beam pair link associated with a secondary cell, wherein a user equipment (UE) is configured with one or more uplink control channel groups, each of the one or more uplink control channel groups comprising a corresponding plurality of component carriers where one of the corresponding plurality of component carriers is designated for communication of an uplink control channel for the corresponding uplink control channel group; determining one or more cells on which to send a beam failure recovery request (BFRQ) message based on a number of uplink control channel groups the UE is configured with; sending the BFRQ on the one or more cells; and receiving a beam failure recovery response message on at least one of the one or more cells.

公开(公告)号：US20210105805A1

公开(公告)日：2021-04-08

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 ,  H04L25/02 ,  H04L5/00 ,  H04W80/02

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：US20210105060A1

公开(公告)日：2021-04-08

申请号：US17033079

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for beam failure detection and recovery. A method that may be performed by a user equipment (UE) includes monitoring one or more reference signals for beam failure detection for a plurality of component carriers (CCs), detecting a beam failure for a subset of one or more CCs of the plurality of CCs based on the one or more reference signals, generating a beam failure recovery request (BFRQ) indicating that a beam failure has occurred for the plurality of CCs in response to the detection of the beam failure for the subset of one or more CCs, and transmitting the BFRQ.