公开(公告)号：US20220386337A1

公开(公告)日：2022-12-01

申请号：US17768539

申请日：2019-11-01

Applicant: Chenxi HAO ,  Yiqing CAO ,  Bo CHEN ,  Peter GAAL ,  Hao XU ,  QUALCOMM INCORPORATED

Inventor： Chenxi HAO ,  Yiqing CAO ,  Bo CHEN ,  Peter GAAL ,  Hao XU

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may In support multiple component carriers that may be used to transmit uplink transmissions. One carrier may be used at a time such that the may switch between the carriers based on an uplink transmission schedule. In some cases, switching may be limited by a consecutive uplink switching rule or UE capability. In some cases, the gap between two consecutive uplink carrier switching operations may be limited to a resource (e.g., slot, symbol), such that the UE may expect to perform at most one switching operation per resource. In some implementations, the gap between two consecutive uplink carrier switching operations may be limited to a duration (e. g., 14 symbols, 4 symbols), such that the UE may expect to perform at most one switching operation per a duration less than or equal to a threshold.

公开(公告)号：US20220278784A1

公开(公告)日：2022-09-01

申请号：US17631828

申请日：2019-08-16

Applicant: Bo CHEN ,  Chenxi HAO ,  Chan WEI ,  Yu ZHANG ,  Ruiming ZHENG ,  Peng CHENG ,  Peter GAAL ,  Hao XU ,  QUALCOMM Incorporated

Inventor： Bo CHEN ,  Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Ruiming ZHENG ,  Peng CHENG ,  Peter GAAL ,  Hao XU

IPC: H04L5/00

Abstract: Aspects described herein relate to transmitting an indication of a capability to support concurrent or time division multiplexed uplink transmission of at least one of multiple uplink channels across multiple component carriers. In addition, a configuration to transmit over the at least one of the multiple uplink channels over the multiple component carriers using concurrent transmission or time division multiplexed transmission can be received based on the indication.

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.

公开(公告)号：US20200304178A1

公开(公告)日：2020-09-24

申请号：US16088285

申请日：2017-05-10

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Yu ZHANG ,  Bo CHEN ,  Jilei HOU

IPC: H04B7/0452 ,  H04B7/0456 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00

Abstract: A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.