公开(公告)号：US20230052478A1

公开(公告)日：2023-02-16

申请号：US17793020

申请日：2020-02-22

Applicant: Yuwei REN ,  Ruifeng MA ,  Huilin XU ,  QUALCOMM Incorporated

Inventor： Yuwei REN ,  Ruifeng MA ,  Huilin XU

IPC: H04W72/12 ,  H04L5/00 ,  H04B7/06

Abstract: Aspects are provided which enhance receiver performance of PDCCH by allowing a base station to associate a configured PDSCH CSI-RS with a PDCCH for channel estimation and reception by a UE. A UE receives a reference signal associated with a physical downlink shared channel (PDSCH) from a base station, and uses the reference signal to receive a physical downlink control channel (PDCCH) and/or measure the PDCCH and feedback a corresponding channel measurement for the PDCCH. A base station configures a reference signal associated with a PDSCH for transmission of a PDCCH and/or reception of a corresponding channel measurement for the PDCCH as feedback from the UE, and transmits the reference signal to the UE.

公开(公告)号：US20230042536A1

公开(公告)日：2023-02-09

申请号：US17758542

申请日：2021-01-29

Applicant: QUALCOMM INCORPORATED

Inventor： Ruifeng MA ,  Yuwei REN ,  Huilin XU

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an indication of a time parameter (e.g., a time delay or a configured duration) associated with determining a configuration for a slot duration. A user equipment (UE) may identify the time parameter and receive an indication of a slot configuration. The UE may determine the configuration of one or more slot durations based on the received indication and according to the time parameter. For instance, the UE may determine the configuration of one or more slots after the time delay. In some other examples, the UE may determine the configuration of one or more slots within the configured duration, and may not use different slot configurations until after the duration expires. The base station and the UE may communicate during the one or more slot durations based on the slot configuration and using the time parameter.

公开(公告)号：US20230021157A1

公开(公告)日：2023-01-19

申请号：US17757681

申请日：2020-01-08

Applicant: Yuwei REN ,  Huilin XU ,  Ruifeng MA ,  QUALCOMM INCORPORATED

Inventor： Yuwei REN ,  Huilin XU ,  Ruifeng MA

IPC: H04W24/10 ,  H04B17/336 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that improve resource configuration for crosslink interference (CLI) measurement in a wireless communications system. For example, a victim user equipment (UE), may be configured to receive and measure the CLI from one or more aggressors. Specifically, the victim UE may be configured to use a dedicated tracking loop for the CLI measurements to track a dedicated channel of the CLI. Additionally or alternatively, the victim UE may associate CLI with an aggressor identity allowing the CLI resources from the same aggressor to be measured jointly. In another example, an aggressor UE may transmit additional reference signals for a victim UE to measure prior to sounding reference signals. The victim UE may report the CLI measurements to its serving base station.

公开(公告)号：US20220385429A1

公开(公告)日：2022-12-01

申请号：US17755906

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng MA ,  Yuwei REN ,  Huilin XU

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive configuration information that indicates, for a plurality of signals configured in a symbol, a plurality of quasi-colocation (QCL) relationships to be used for determining a channel property; select a QCL relationship, from the plurality of QCL relationships, to be used for determining the channel property and the plurality of signals in the symbol; and receive the plurality of signals in accordance with the selected QCL relationship based at least in part on the channel property. Numerous other aspects are provided.

公开(公告)号：US20220263620A1

公开(公告)日：2022-08-18

申请号：US17595560

申请日：2020-06-09

Applicant: QUALCOMM Incorporated

Inventor： Bo CHEN ,  Joseph Binamira SORIAGA ,  Pavan Kumar VITTHALADEVUNI ,  Yu ZHANG ,  Chenxi HAO ,  Ruifeng MA ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI ,  Hao XU

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/0456

Abstract: A user equipment (UE) receives a first channel state information reference signal (CSI-RS) on a first set of beams and receives a second CSI-RS on a second set of beams. The apparatus determines a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI) based on the first CSI-RS. The apparatus reports the CQI and RI using an uplink control channel and indicates the PMI using a precoded SRS transmission. The precoded SRS transmission may be precoded based on a dissimilarity between the first CSI-RS and the second CSI-RS. The first CSI-RS may include a defined precoder, and the second CSI-RS may include a precoder based on an uplink channel estimate of a non-precoded SRS from the UE.

公开(公告)号：US20220210676A1

公开(公告)日：2022-06-30

申请号：US17595221

申请日：2020-05-27

Applicant: QUALCOMM Incorporated

Inventor： Bo CHEN ,  Ruifeng MA ,  Yu ZHANG ,  Pavan Kumar VITTHALADEVUNI ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Krishna Kiran MUKKAVILLI ,  Hao XU ,  Tingfang JI

IPC: H04W24/08 ,  H04B7/06 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates a sounding reference signal (SRS) resource set to be used for analog channel state feedback (CSF) and an association between the SRS resource set and a set of downlink channel state information reference signals (CSI-RSs). The UE may measure the set of downlink CSI-RSs associated with the SRS resource set. The UE may transmit one or more SRSs for analog CSF using the SRS resource set and based at least in part on measuring the set of downlink CSI-RSs. Numerous other aspects are provided.