Patents by Inventor Liangming WU

Liangming WU 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).

  • Patent number: 11962528
    Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) for multiple transmission reception point (multi-TRP) transmission such as non-coherent joint transmission (NCJT), including determining subband sizes for CSI and rules for Part II CSI omission. A method that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration associated with one or more CSI reference signal (RS) resources, each CSI resource including a set of ports or port groups. The UE selects one or more CSI-RS resources for which to report CSI and determines a subband size for sending a CSI report based, at least in part, on payload of the CSI report. In an example method, the UE can determine whether the UE has sufficient resources for the CSI report and omit at least a portion of the CSI based on the determination.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 16, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Chenxi Hao, Yu Zhang, Liangming Wu, Qiaoyu Li, Wanshi Chen, Peter Gaal
  • Publication number: 20240121621
    Abstract: A configuration for reporting OOD samples for neural network optimization. The apparatus receives, from a base station, a configuration to report an OOD dataset for a machine learning model. The apparatus detects an occurrence of one or more OOD events. The apparatus reports the OOD dataset comprising the one or more OOD events based on the configuration to report OOD dataset. The apparatus receives, from the base station, an update to the machine learning model. The OOD dataset may comprise raw data related to the one or more OOD events, or may comprise extracted latent data corresponding to features of raw data related to the one or more OOD events.
    Type: Application
    Filed: April 21, 2021
    Publication date: April 11, 2024
    Inventors: Yuwei REN, Chenxi HAO, Yu ZHANG, Ruiming ZHENG, Liangming WU, Qiaoyu LI, Rui HU, Hao XU, Yin HUANG
  • Publication number: 20240121035
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a wireless device may In use non-uniformly distributed bits for amplitude mapping and uniformly distributed bits for sign mapping to support probabilistic constellation shaping (PCS) for transmission of a message. To provide a coding gain with one or more retransmissions of the message, the device may configure redundancy versions based on the non-uniform distribution of one or more symbols. In some examples, the device may include the same set of non-uniformly distributed systematic bits or at least a portion of non-uniformly distributed systematic bits in each redundancy version of the message. Additionally or alternatively, the device may use multiple modulation and coding scheme (MCS) values to modulate one or more of the redundancy versions, where a first MCS value is used to modulate non-uniformly distributed symbols and a second MCS value is used to modulate uniformly distributed symbols.
    Type: Application
    Filed: March 9, 2021
    Publication date: April 11, 2024
    Inventors: Kexin XIAO, Liangming WU, Changlong XU, Kangqi LIU, Jian LI, Hao XU, Ruiming ZHENG, Wei LIU
  • Publication number: 20240106565
    Abstract: Apparatus, methods, and computer-readable media for network coding for handover are disclosed herein. A base station (BS) transmits a first group of encoded packets to a first road side unit (RSU) over a first radio access network (RAN) interface. The BS initiates a handover procedure between the first RSU and a second RSU. The BS receives, from the first RSU, a release acknowledgment associated with the handover procedure and feedback associated with the first group of encoded packets. The BS transmits network coding level information to the second RSU over a second RAN interface based on the feedback. The network coding level information indicates a number of missing encoded packets within the first group of encoded packets for the second RSU to transmit to the UE. The BS transmits, to the UE, a second group of encoded packets associated with the number of missing encoded packets at the second RSU.
    Type: Application
    Filed: February 10, 2021
    Publication date: March 28, 2024
    Inventors: Kangqi LIU, Ruiming ZHENG, Changlong XU, Liangming WU, Kexin XIAO, Jian LI, Hao XU, Wei LIU
  • Publication number: 20240097817
    Abstract: Methods, systems, and devices for wireless communication are described to support replacing values of one or more information bit vectors with one or more corresponding sets of parity bits. A first wireless device may replace an information bit vector with a parity bit vector, using a set of information bits of the information bit vector and based on a parity check matrix, which may result in generating the set of information bits at an information bit vector corresponding to a parity bit column of the parity check matrix, during encoding. The first wireless device may perform a transmission to a second wireless device, which may receive the transmission, decode the set of information bits to the information bit vector corresponding to the parity bit column. The second wireless device may replace other bit estimates of a vector corresponding to an information bit column with the set of information bits.
    Type: Application
    Filed: March 18, 2021
    Publication date: March 21, 2024
    Inventors: Wei LIU, Thomas Joseph RICHARDSON, Liangming WU, Changlong XU, Ori SHENTAL, Hao XU
  • Publication number: 20240088980
    Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for beam determination, multi-user transmission, and channel state variance information (CSVI) reporting in a holographic multiple input multiple output (MIMO) system.
    Type: Application
    Filed: March 26, 2021
    Publication date: March 14, 2024
    Inventors: Min HUANG, Wei XI, Chao WEI, Yu ZHANG, Hao XU, Chenxi HAO, Rui HU, Liangming WU, Kangqi LIU, Qiaoyu LI, Jing DAI, Changlong XU
  • Patent number: 11909470
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangming Wu, Kangqi Liu, Changlong Xu, Jian Li, Hao Xu
  • Publication number: 20240048430
    Abstract: Aspects of the disclosure relate to wireless communication utilizing a modulation and coding scheme that selectively or dynamically applies probabilistically-shaped coding (PCS) to modulate a transmitted waveform. A communication device may determine whether to apply PCS. If PCS is to be applied, the device can encode the message based on a systematic code; and if PCS is not to be applied, the device can encode the message based on a non-systematic code.
    Type: Application
    Filed: March 5, 2021
    Publication date: February 8, 2024
    Inventors: Liangming Wu, Changlong Xu, Kangqi Liu, Jian Li, Ruiming Zheng, Hao Xu, Ori Shental
  • Publication number: 20240048325
    Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for channel state information (CSI) reference signal (RS) resource aggregation.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 8, 2024
    Inventors: Chenxi HAO, Yu ZHANG, Liangming WU, Wei XI, Hao XU
  • Publication number: 20240048209
    Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive, from a transmitting device, a configuration indicating a set of orbital angular momentum (OAM) modes for joint reporting, where at least one of the set of OAM modes is associated with transmission via two or more of a plurality of sets of antennas arranged in a set of concentric circular arrays. The receiving device may transmit, to the transmitting device, a report indicating precoding information for each of at least a subset of the set of OAM modes, where the precoding information includes one or more first parameters common to the set of OAM modes and one or more second parameters for respective ones of the at least the subset of the set of OAM modes.
    Type: Application
    Filed: March 4, 2022
    Publication date: February 8, 2024
    Inventors: Min HUANG, Yu ZHANG, Chao WEI, Wei XI, Rui HU, Kangqi LIU, Chenxi HAO, Liangming WU, Jing DAI, Hao XU, Wanshi CHEN, Danlu ZHANG
  • Publication number: 20240049015
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first indication of a first number of antenna ports for which the UE is to report channel state information (CSI), and a second indication of a second number of antenna ports on which the UE is to measure CSI reference signals (CSI-RSs). The second number may be less than the first number. The UE may receive an indication of one or more antenna port parameters, where each may be associated with one of the first number of antenna ports or the second number of antenna ports. The UE may determine the CSI for the first number of antenna ports using the one or more antenna port parameters and measurements made by the UE on the second number of ports, and may transmit a report including the CSI for the first number of ports.
    Type: Application
    Filed: March 5, 2021
    Publication date: February 8, 2024
    Inventors: Qiaoyu LI, Yu ZHANG, Liangming WU, Hao XU, Rui HU, Chenxi HAO, Taesang YOO
  • Publication number: 20240048287
    Abstract: Apparatus, methods, and computer-readable media for network coding for dual connectivity are disclosed herein. A base station (BS) sends encoded symbols from a first network coding layer to a first radio link control (RLC) layer and transmits, to a user equipment (UE), encoded data comprising the encoded symbols. The BS also transmits encoded data to a road side unit (RSU) for passing to the UE as a split transmission. The UE can receive encoded packets from the BS and RSU at a network coding layer via a second RLC layer. The UE recovers source packets from the encoded packets with a rateless network code at the network coding layer. The UE sequences the source packets into an ordered set of source packets at the network coding layer and sends the ordered set of source packets from the network coding layer to a packet data convergence protocol layer for processing.
    Type: Application
    Filed: February 10, 2021
    Publication date: February 8, 2024
    Inventors: Kangqi LIU, Ruiming ZHENG, Changlong XU, Liangming WU, Kexin XIAO, Jian LI, Hao XU, Wei LIU
  • Publication number: 20240039659
    Abstract: Methods, systems, and devices for wireless communications are described. The method includes transmitting, to a base station, a capability parameter indicating one or more predictive retransmission feedback capabilities of the UE, receiving, from the base station, an activation indicator that indicates a predictive retransmission feedback procedure is enabled, receiving data from the base station, and transmitting a predictive retransmission feedback associated with the data to the base station, the predictive retransmission feedback being computed, in accordance with the activation indicator, prior to completing a decoding of the data.
    Type: Application
    Filed: February 11, 2021
    Publication date: February 1, 2024
    Inventors: Liangming WU, Hao XU, Qiaoyu LI, Chenxi HAO, Rui HU, Yu ZHANG, Yuwei REN
  • Publication number: 20240023139
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, encoded packets that are encoded using network coding. The encoded packets may be associated with source packets that represent a data set. The UE may attempt to recover the source packets from the encoded packets received from the base station. Upon failing to recover the source packets, the UE may transmit, over a sidelink channel, a message requesting sidelink assistance in recovering the source packets.
    Type: Application
    Filed: February 2, 2021
    Publication date: January 18, 2024
    Inventors: Kangqi LIU, Ruiming ZHENG, Changlong XU, Liangming WU, Jian LI, Kexin XIAO, Hao XU, Wei LIU
  • Publication number: 20240014921
    Abstract: Aspects of the present disclosure relate to selection of a coding rate for forward error correction coding associated with Fountain code encoding. According to some aspects, a wireless device may determine a plurality of block error rates associated with a channel between the wireless device and a second device, the plurality of block error rates being associated with a plurality of coding rates. The wireless device may select a coding rate from the plurality of coding rates for forward error correction coding based on the plurality of block error rates and the plurality of coding rates. The wireless device may encode a source data packet using a Fountain code to produce a codeword, and perform the forward error correction coding on the codeword based on the selected coding rate to produce a transmit signal. The wireless device may transmit the transmit signal to the second device.
    Type: Application
    Filed: January 19, 2021
    Publication date: January 11, 2024
    Inventors: Jian LI, Changlong XU, Kangqi LIU, Liangming WU, Hao XU
  • Publication number: 20240007226
    Abstract: Aspects of the disclosure relate to wireless communication with a waveform configured according to probabilistic constellation shaping in connection with modulation. A wireless transmission device may determine a sequence of amplitude symbols from a sequence of information bits using a distribution matcher (DM) configured for probabilistic amplitude shaping. The device may further apply error correction coding to encode an information block corresponding to at least a portion of the sequence of amplitude symbols. And the device may generate a sequence of output symbols for transmission based on the encoded information block. In various examples, the device may apply interleaving to one or more of the sequence of amplitude symbols, the information block, the encoded information block, or a combination of the sequence of amplitude symbols and the encoded information block, for the generating of the sequence of output symbols. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: January 13, 2021
    Publication date: January 4, 2024
    Inventors: Liangming Wu, Kexin Xiao, Changlong Xu, Jian Li, Kangqi Liu, Ruiming Zheng, Ori Shental, Hao Xu, Thomas Joseph Richardson
  • Publication number: 20240007162
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for configuring CSI-RS repetitions for CSI measurement in high Doppler scenarios. An example method generally includes receiving, from a network entity, a configuration identifying channel state information (CSI) reference signal (RS) (CSI-RS) repetitions over which a CSI report is to be generated, receiving CSI-RS repetitions according to the configuration, measuring CSI based on the received CSI-RS repetitions, and transmitting the CSI report including the measured CSI to the network entity.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Inventors: Qiaoyu LI, Yu ZHANG, Hao XU, Liangming WU, Chenxi HAO, Chao WEI
  • Patent number: 11863479
    Abstract: Certain aspects of the present disclosure provide techniques for signaling quasi-coloration (QCL) information for demodulation reference signals (DM-RS) associated with multiple transmission-reception points (multi-TRP). An example method generally includes generating quasi-colocation (QCL) information indicating a first QCL assumption for a first group of demodulation reference signal (DM-RS) ports and a second QCL assumption for a second group of DM-RS ports; and transmitting the QCL information to at least one user equipment (UE) for use in processing one or more transmission associated with at least one of the first group of DM-RS ports and the second group of DM-RS ports.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Chenxi Hao, Chao Wei, Yu Zhang, Liangming Wu, Qiaoyu Li, Peter Gaal, Wanshi Chen
  • Patent number: 11863494
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that an enhanced type-II channel state information (CSI) report configuration, associated with transmitting CSI feedback to a base station, is to be overridden; and transmit, based at least in part on determining that the enhanced type-II CSI report configuration is to be overridden, a CSI report using another CSI report configuration, wherein the CSI report includes the CSI feedback and an indication that the enhanced type-II CSI report configuration has been overridden. Numerous other aspects are provided.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Liangming Wu, Chenxi Hao, Yu Zhang, Min Huang, Qiaoyu Li, Parisa Cheraghi, Lei Xiao
  • Publication number: 20230421223
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first indication of a first number of antenna ports for which the UE may report channel state information (CSI), and a second indication of a second number of antenna ports on which the UE may measure CSI reference signals (CSI-RSs). The second number may be less than the first number. The UE may receive a third indication of one or more neural networks to be used by the UE for determination of the CSI associated with the first number. The UE may determine the CSI using the one or more neural networks and using measurements made by the UE on the second number as inputs to the one or more neural networks. The UE may transmit a report including the CSI associated with the first number determined via the one or more neural networks.
    Type: Application
    Filed: January 29, 2021
    Publication date: December 28, 2023
    Inventors: Qiaoyu Li, Yu Zhang, Liangming Wu, Hao Xu, Rui Hu, Chenxi Hao, Taesang Yoo