公开(公告)号：US20230216627A1

公开(公告)日：2023-07-06

申请号：US17996755

申请日：2020-06-28

申请人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  QUALCOMM Incorporated

发明人： Runxin Wang ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon

IPC分类号： H04L5/00 ,  H04W24/10

CPC分类号： H04L5/0035 ,  H04L5/0048 ,  H04L5/0091 ,  H04W24/10

摘要： Aspects of the disclosure relate to radio access networks with a capability to dynamically reconfigure a number of transmission-reception points (TRPs) in a single-frequency network (SFN) based on channel measurements. In one example, a mobile device receives a configuration message including a plurality of transmission configuration indicator (TCI) states, and potentially further including an indication identifying one or more of the TCI states as main TCI states. The message may further include an indication that it includes the plurality of TCI states. The UE receives a downlink traffic channel and demodulates the traffic channel based on only a subset of the TCI states (e.g., the main TCI state (s)). The UE further measures one or more channel parameters corresponding to each TCI state of the plurality of TCI states, and transmits a channel state information report based on the channel parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20230179370A1

公开(公告)日：2023-06-08

申请号：US17999747

申请日：2020-07-18

申请人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLLI ,  Hwan Joon KWON ,  QUALCOMM INCORPORATED

发明人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON

IPC分类号： H04L5/00

CPC分类号： H04L5/0051 ,  H04L5/0094

摘要： Methods, systems, and devices for wireless communications are described for configuration and transmission of one or more uplink reference signals for tracking. A user equipment (UE) may transmit one or more uplink reference signals for tracking and a base station or transmission-reception point (TRP) may estimate one or more frequency or time shifts (e.g., a Doppler shift, time shift, or both) associated with communications with the UE. The estimated frequency shifts, time shifts, or combinations thereof, may be used to provide compensated communications (e.g., Doppler compensated communications) with the UE. The uplink reference signal for tracking may be a sounding reference signal that is configured as a tracking reference signal.

公开(公告)号：US20230275629A1

公开(公告)日：2023-08-31

申请号：US18020248

申请日：2020-08-07

申请人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Weimin DUAN ,  QUALCOMM Technologies, Inc.

发明人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Weimin DUAN

IPC分类号： H04B7/06 ,  H04B7/0404 ,  H04L5/00

CPC分类号： H04B7/0604 ,  H04B7/0404 ,  H04L5/0023 ,  H04L5/0051

摘要： A method of wireless communication, by a user equipment (UE) supporting a four transmitter/six receiver (4T6R) antenna configuration, reports a sounding reference signal (SRS) switching capability. The method receives an SRS antenna switching configuration, and performs SRS antenna switching while transmitting multiple SRSs via SRS resources with multiple transmitters for different antenna ports, in accordance with the SRS antenna switching configuration. At least one of the different antenna ports may use at least two of the SRS resources. A quantity of the different antenna ports assigned to each SRS resource may be different for the SRS antenna switching. The UE may sound the different antenna ports an equal number of times, and at least one of the different antenna ports may use at least two of the SRS resources for the SRS antenna switching.