Patents by Inventor Tingfang Ji

Tingfang Ji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Subband-granularity linear combination for a CSI codebook
    Patent number: 11799525
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine channel state information for a communication link, wherein the channel state information is based at least in part on a linear combination associated with a plurality of beams of the communication link, wherein a first set of beams used for a first subband, of a plurality of subbands of the communication link, is different than a second set of beams used for a second subband of the plurality of subbands, and wherein the plurality of beams includes the first set of beams and the second set of beams; and transmit the channel state information. Numerous other aspects are provided.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Bo Chen, Pavan Kumar Vitthaladevuni, Yu Zhang, Ruifeng Ma, Joseph Binamira Soriaga, Tingfang Ji
  • UPLINK POWER CONTROL FOR FULL DUPLEX COMMUNICATION
    Publication number: 20230337251
    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 schedules an uplink communication in an uplink frequency band. The UE may transmit, at an uplink frequency within the uplink frequency band, the uplink communication with a power that varies over the uplink frequency band based at least in part on a location of the uplink frequency relative to a downlink frequency band associated with the UE. Numerous other aspects are provided.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 19, 2023
    Inventors: Ahmed Attia ABOTABL, Huilin XU, Muhammad Sayed Khairy ABDELGHAFFAR, Shimman Arvind PATEL, Wanshi CHEN, Hwan Joon KWON, Krishna Kiran MUKKAVILLI, Tingfang JI, Abdelrahman Mohamed Ahmed Mohamed IBRAHIM
  • CROSS-CARRIER SCHEDULING ENHANCEMENTS IN NEW RADIO (NR)
    Publication number: 20230337230
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may implement cross-carrier scheduling. A user equipment (UE) may identify a minimum scheduling delay and may receive a downlink grant on a first CC. The UE may further identify the slot in which a downlink data transmission corresponding to the downlink grant will be received, and may identify the slot such that the minimum scheduling delay is satisfied. The UE may the receive the downlink data transmission, as indicated in the downlink grant, in the identified slot. In some examples, the UE and the base station may alternate between a long minimum scheduling delay and a short minimum scheduling delay. In some examples, the UE and the base station may alternate between a cross-carrier mode, and a self-scheduling mode.
    Type: Application
    Filed: February 24, 2023
    Publication date: October 19, 2023
    Inventors: Peter Pui Lok Ang, Peter Gaal, Alexei Yurievitch Gorokhov, Tingfang Ji, Brian Clarke Banister, Wanshi Chen, Joseph Binamira Soriaga, Huilin Xu, John Edward Smee, Heechoon Lee, Hari Sankar
  • BASE STATION-TO-SERVER SIGNALING OF TIME-ANGLE CHANNEL PROFILE
    Publication number: 20230336229
    Abstract: Disclosed are techniques for wireless positioning. In an aspect, a base station determines a channel profile for a multipath channel between the base station and a user equipment (UE) based on at least one positioning reference signal transmitted to the UE or received from the UE by the base station on one or more radio beams, compresses the channel profile into a compressed representation of the channel profile, and transmits the compressed representation of the channel profile to a network entity. The network entity receives the compressed representation of the time-angle channel profile and determines a location of the UE based on the compressed representation of the channel profile.
    Type: Application
    Filed: October 7, 2021
    Publication date: October 19, 2023
    Inventors: Sooryanarayanan GOPALAKRISHNAN, Jay Kumar SUNDARARAJAN, Alexandros MANOLAKOS, Naga BHUSHAN, Taesang YOO, Krishna Kiran MUKKAVILLI, Weimin DUAN, Tingfang JI
  • TRANSMITTING SYNCHRONIZATION SIGNAL BLOCK VIA RECONFIGURABLE INTELLIGENT SURFACES
    Publication number: 20230337158
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for performing initial access procedures including transmitting or receiving synchronization signal blocks (SSBs) based on a capability of a user equipment (UE) to use reconfigurable intelligent surfaces (RISs). In some examples, a base station may transmit SSBs using two synchronization raster grids. For example, the base station may transmit SSBs on a first synchronization raster grid for UEs that do not support RISs and on a second synchronization raster grid for UEs that support RISs. In some examples, a base station may transmit different types of SSBs. For example, a base station may transmit a first type of SSB for UEs that do not support RISs and a second type of SSB for UEs that support RISs. A UE may search for and receive SSBs according to a capability of the UE.
    Type: Application
    Filed: October 8, 2020
    Publication date: October 19, 2023
    Inventors: Yu ZHANG, Hung Dinh LY, Jinseok CHOI, Krishna Kiran MUKKAVILLI, Hwan Joon KWON, Tingfang JI, Naga BHUSHAN
  • Transmission strategy signaling
    Patent number: 11791878
    Abstract: Techniques are discussed herein identify transmission strategies and to communicate those identified transmission strategies in a transparent communication environment. In some examples, a user equipment (UE) may identify a new transmission strategy for a downlink channel different from a current transmission strategy for the down link channel. The UE may transmit a channel state information (CSI) message that includes an indication of the new transmission strategy identified by the UE. In some examples, a base station may identify the new transmission strategy for the downlink channel. The base station may transmit a codebook subset restriction (CSR) indicator that includes an indication of the new transmission strategy identified by the base station. In some examples, the UE may modify its feedback strategy based on the new transmission strategy.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 17, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Juan Montojo, Alexei Yurievitch Gorokhov, Peter Gaal, Yu Zhang, Joseph Binamira Soriaga, Tingfang Ji, Hari Sankar, Alexandros Manolakos
  • Techniques for channel state feedback for panel adaptation
    Patent number: 11791969
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, signaling indicating a channel state information (CSI) report configuration. The CSI report configuration may indicate a mapping between one or more CSI reference signal (CSI-RS) resources or one or more CSI-RS port groups and one or more antenna panels or antenna subpanels of the base station. The UE may generate CSI feedback based on the mapping. In some cases, the UE may generate the CSI feedback based on multiple hypotheses that correspond to CSI-RS measurements. In some examples, the multiple hypotheses may include a set of hypothesis groups based on one or more antenna panels or antenna subpanels of the base station. The UE may transmit a message reporting the CSI feedback to the base station.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: October 17, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammad Sayed Khairy Abdelghaffar, Hung Dinh Ly, Huilin Xu, Krishna Kiran Mukkavilli, Wanshi Chen, Hwan Joon Kwon, Tingfang Ji
  • Power control for uplink communications in full duplex mode
    Patent number: 11792736
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first power control parameter associated with a first uplink transmission from the UE, wherein the first power control parameter is based on at least one of: an adjusted target power for the first uplink transmission, an adjusted scaling factor for the first uplink transmission, a first parameter based at least in part on a self-interference associated with the UE, a second parameter based at least in part on a code rate or a modulation and coding scheme associated with a downlink transmission for the UE, or a combination thereof; and transmit, to a base station, the first uplink transmission based at least in part on the first power control parameter. Numerous other aspects are provided.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 17, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Huilin Xu, Muhammad Sayed Khairy Abdelghaffar, Ahmed Attia Abotabl, Krishna Kiran Mukkavilli, Hwan Joon Kwon, Tingfang Ji
  • REPORTING CONFIGURATIONS FOR NEURAL NETWORK-BASED PROCESSING AT A UE
    Publication number: 20230328559
    Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for reporting configurations for neural network-based processing at a UE. A network entity may transmit to the UE a CSI configuration that includes one or more parameters for a neural network and one or more reference signals. The UE may measure the one or more reference signals based on the CSI configuration. A CSI may be based on the one or more parameters and the measurement of the one or more reference signals. The UE may report the CSI to the network entity based on output of the neural network.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 12, 2023
    Inventors: Alexandros MANOLAKOS, Pavan Kumar VITTHALADEVUNI, Taesang YOO, June NAMGOONG, Jay Kumar SUNDARARAJAN, Tingfang JI, Naga BHUSHAN, Hwan Joon KWON, Krishna Kiran MUKKAVILLI
  • SRS POWER CONTROL METHODS FOR CHANNEL ESTIMATION OF RECONFIGURABLE INTELLIGENT SURFACE LINK
    Publication number: 20230328660
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a sounding reference signal transmission power of a user equipment (UE) and may communicate with the UE according to the determined sounding reference signal transmission power. In some examples, the base station may transmit signaling to the UE indicating a switch from a first power control mode to a second power control mode. The UE may transmit, to the base station and in the second power control mode, a power headroom report which the base station may use to estimate the sounding reference signal transmission power. In other examples, the base station may transmit a request for one or more reports that indicate the sounding reference signal transmission power based on the base station operating in a closed-loop power control mode. The UE may transmit the one or more reports to the base station.
    Type: Application
    Filed: October 12, 2020
    Publication date: October 12, 2023
    Inventors: Jinseok CHOI, Yu ZHANG, Saeid SAHRAEI, Krishna Kiran MUKKAVILLI, Hwan Joon KWON, Tingfang JI, Naga BHUSHAN
  • MAC-CE ACTIVATION OF CLI REPORTING
    Publication number: 20230328560
    Abstract: A UE may receive a configuration of one or more SP resources for CLI and/or SI measurement, and receive, from the base station, a MAC-CE activating the configured one or more SP resources for CLI and/or SI measurements. The UE may measure the CLI and/or SI based on interference signal and report a CLI report, including the measured CLI and/or SI to the base station. The UE may estimate average CL based on an average transmission power of the interference signal over multiple slots from an aggressor UE, and the base station may use the estimated average CL to determine CLI for aggressor UE based on CLI reciprocity.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 12, 2023
    Inventors: Abdelrahman Mohamed Ahmed Mohamed IBRAHIM, Muhammad Sayed Khairy ABDELGHAFFAR, Huilin XU, Ahmed Attia ABOTABL, Wanshi CHEN, Alexandros MANOLAKOS, Krishna Kiran MUKKAVILLI, Hwan Joon KWON, Tingfang JI
  • RELAY SELECTION FOR COOPERATIVE RELAYING
    Publication number: 20230328626
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. A source user equipment (UE) may transmit, to a relay UE, information identifying that the relay UE is one of a plurality of relay UEs selected for cooperative relaying of a communication from the source UE to a destination UE. A channel between the source UE and the relay UE may be one of a plurality of channels comprising a channel between the source UE and each relay UE of the plurality of relay UEs. The plurality of relay UEs may be selected based at least in part on a degree of correlation of the channel between the source UE and the relay UE with at least one other channel of the plurality of channels. The UE may transmit the communication to the plurality of relay UEs for cooperative relaying to the destination UE. Numerous other aspects are described.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Inventors: Yi HUANG, Seyedkianoush HOSSEINI, Wei YANG, Peter GAAL, Wanshi CHEN, Tingfang JI, Ahmed ELSHAFIE, Yisheng XUE
  • HYBRID AUTOMATIC REPEAT REQUEST-ACKNOWLEDGEMENT (HARQ-ACK) HISTORY FEEDBACK CHANNEL
    Publication number: 20230327814
    Abstract: Wireless communications systems and methods related to hybrid automatic repeat request (HARQ) history feedbacks are provided. A user equipment (UE) receives one or more data blocks associated with a plurality of hybrid automatic repeat request (HARQ) processes. The UE may transmit an individual feedback for each of the one or more data blocks indicating whether the data block is received successfully. The UE may transmit a feedback history report for a set of HARQ processes less than all of the plurality of HARQ processes.
    Type: Application
    Filed: June 15, 2023
    Publication date: October 12, 2023
    Inventors: Wei YANG, Wanshi CHEN, Yi HUANG, Heechoon LEE, Tingfang JI, Peter GAAL, Jing JIANG
  • OPTICAL REFERENCE SIGNAL BASED TRP DETECTION
    Publication number: 20230328630
    Abstract: The user equipment (UE) may obtain at least one optical reference signal associated with a transmit receive point (TRP), the at least one optical reference signal including at least one of: a TRP identifier (ID) or direction information of the at least one optical reference signal with reference to the TRP. The UE may identify information associated with the TRP with reference to the UE based on the at least one optical reference signal, and perform at least one of a cell acquisition, a beam management, a UE position detection, a TRP validation, or an ambient environment detection based on the identified information associated with the TRP. The UE may also receive at least one reference radio signal, and use the correlation between the optical reference signal and the received reference radio signal.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 12, 2023
    Inventors: Xipeng ZHU, Fei HUANG, Duo ZHANG, Tingfang JI
  • Random access channel transmissions using resources associated with synchronization signal blocks
    Patent number: 11785644
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select a synchronization signal block (SSB) from a plurality of SSBs received from a base station based at least in part on a power measurement associated with the SSB. The UE may determine a physical random access channel (PRACH) coverage enhancement (CE) level that is associated with the SSB. The UE may perform, with the base station, a PRACH transmission on PRACH resources associated with the SSB and the PRACH CE level. Numerous other aspects are provided.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: October 10, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Yongjun Kwak, Jing Lei, Hung Dinh Ly, Huilin Xu, Seyedkianoush Hosseini, Yuchul Kim, Wanshi Chen, Hwan Joon Kwon, Krishna Kiran Mukkavilli, Tingfang Ji
  • Physical downlink control channel (PDCCH) monitoring for reduced capability user equipment (UE)
    Patent number: 11785621
    Abstract: A method for wireless communication performed by a user equipment (UE) includes transmitting, to a base station, an indication comprising a per slot capability for a first number of physical downlink control channel (PDCCH) blind decodes and a first number of control channel elements (CCEs). The method also includes receiving, from the base station, a search space configuration based on the indication. The search space configuration configures a second number of blind decodes per slot, a second number of CCEs per slot, and a PDCCH monitoring periodicity. The method also includes decoding a PDCCH based on the search space configuration.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 10, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Yuchul Kim, Huilin Xu, Hwan Joon Kwon, Peter Pui Lok Ang, Jing Lei, Iyab Issam Sakhnini, Krishna Kiran Mukkavilli, Wanshi Chen, Tingfang Ji, Muhammad Sayed Khairy Abdelghaffar, Peter Gaal
  • PROCESSING TIMELINE CONSIDERATIONS FOR CHANNEL STATE INFORMATION
    Publication number: 20230319617
    Abstract: A first wireless device, such as a user equipment, generates a message indicating a processing time for at least one of training a neural network for channel state information (CSI) derivation or for reporting the CSI based on a trained neural network. The first wireless device transmits the message indicating the processing time to a second wireless device. The second wireless device may be a network entity, such as a base station, a transmission reception point, or another UE.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 5, 2023
    Inventors: Alexandros MANOLAKOS, Pavan Kumar VITTHALADEVUNI, Taesang YOO, June NAMGOONG, Jay Kumar SUNDARARAJAN, Naga BHUSHAN, Krishna Kiran MUKKAVILLI, Tingfang JI, Hwan Joon KWON, Wanshi CHEN
  • METHODS AND APPARATUS FOR OPERATING ANTENNAS IN THE PRESENCE OF AIRBORNE RADAR SIGNALS
    Publication number: 20230314561
    Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for identifying a plurality of radar signals including a first radar signal during a first interval and a second radar signal during a second interval, identifying a first subinterval within the first interval, identifying a second subinterval within the second interval, refraining from transmitting downlink information during the first subinterval, and transmitting the downlink information during the second subinterval.
    Type: Application
    Filed: April 1, 2022
    Publication date: October 5, 2023
    Inventors: Aleksandar DAMNJANOVIC, Krishna Kiran MUKKAVILLI, Rajat PRAKASH, Tingfang JI
  • Sequence design for noncoherent transmission with frequency and timing errors
    Patent number: 11777653
    Abstract: Methods, systems, and devices for wireless communications are described. A first network device (e.g., a base station) may determine, based on one or more transmissions received over a channel and a channel condition of the channel, a configuration for repeating a sequence from multiple sequences over a resource allocation. A second network device (e.g., a UE) may transmit one or more transmissions over a channel to the first network device. The first network device may transmit, to the second network device, an indication of the configuration for repeating the sequence over the resource allocation. The second network device may transmit a first instance of the sequence and a second instance of the sequence based on the configuration. The first network device may perform error correction on the data based on the received first instance of the sequence and the received second instance of the sequence.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: October 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Huang, Wei Yang, Gokul Sridharan, Peter Gaal, Tingfang Ji
  • Retransmission of physical uplink control channel (PUCCH) for ultra reliable low latency communications (URLLC)
    Patent number: 11777645
    Abstract: Techniques are provided for retransmission of Physical Uplink Shared Channel (PUCCH) for Ultra Reliable Low Latency Communications (URLLC). A User Equipment (UE) transmits at least one code block of a control channel, the at least one code block including Channel State Information (CSI), wherein each code block is polar encoded by assigning bit indices of the code block to bit channels in a particular order of reliabilities of the bit channels. The UE detects a trigger, and in response, retransmits at least a portion of each code block including retransmitted CSI, wherein the portion is polar encoded by assigning bit indices of the retransmitted CSI to the bit channels in the reverse order of reliabilities of the bit channels as compared to the polar encoding of the CSI.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: October 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Changlong Xu, Liangming Wu, Kai Chen, Jian Li, Hao Xu, Tingfang Ji, Joseph Binamira Soriaga, Jing Jiang