Patents by Inventor Bingchao Liu

Bingchao Liu 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).

  • Publication number: 20230300644
    Abstract: Apparatus and methods of beam failure detection mechanism for enhanced PDCCH with multiple transmissions are disclosed.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 21, 2023
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling
  • Publication number: 20230299928
    Abstract: Embodiments of the present application are related to a method and apparatus for hybrid automatic repeat request-acknowledge (HARQ-ACK) feedback in multi-transmit-receive point (multi-TRP) transmission. An exemplary method of the present application includes: receiving configuration information on HARQ-ACK feedback for physical downlink shared channel (PDSCH), wherein the configuration information at least indicates a plurality of CORESETPoolIndex values and a separate feedback mode for HARQ-ACK feedback excluding that for semi-persistent scheduling (SPS) PDSCH reception associated with different CORESETPoolIndex values, each CORESETPoolIndex value being associated with at least one physical uplink control channel (PUCCH) resource; and transmitting a plurality of HARQ-ACK feedback for SPS PDSCH receptions associated with at least one CORESETPoolIndex value in a time interval using a separate feedback scheme or a joint feedback scheme.
    Type: Application
    Filed: July 15, 2020
    Publication date: September 21, 2023
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang
  • Publication number: 20230284149
    Abstract: Apparatuses, methods, and systems are disclosed for configuring UL-TCI power control parameters. One method (400) includes receiving (402) an RRC message configuring a set of UL-TCI power control parameter groups. Each UL-TCI power control parameter group defines a group of power control parameters used to calculate an uplink transmission power. The method (400) includes receiving (404) DCI scheduling a codebook-based PUSCH transmission. The DCI comprises an UL-TCI field indicating at least one spatial domain transmission filter for the codebook-based PUSCH transmission. The method (400) includes determining (406) power control parameters for the codebook-based PUSCH transmission based on an UL-TCI power control parameter group of the set of UL-TCI power control parameter groups that corresponds to the UL-TCI field. The method (400) includes transmitting (408) the codebook-based PUSCH with a transmission power determined based on the power control parameters.
    Type: Application
    Filed: August 6, 2020
    Publication date: September 7, 2023
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20230283430
    Abstract: Apparatuses, methods, and systems are disclosed for configuring sounding reference signal resource sets. One method (500) includes receiving (502), at a user equipment, a radio resource control message configuring sounding reference signal resource sets for a set of resource groups with resource group identifiers, a set of antenna panels with panel identifiers, or a combination thereof, wherein: sounding reference signal resources of sounding reference signal resource sets indifferent resource groups of the set of resource groups, in different antenna panels of the set of antenna panels, or a combination thereof are transmitted one at a time.
    Type: Application
    Filed: August 7, 2020
    Publication date: September 7, 2023
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20230284197
    Abstract: Apparatus and methods of new beam identification for link recovery for enhanced Physical Downlink Control Channel (PDCCH) with multiple transmissions are disclosed. The apparatus includes: a receiver that receives configurations indicating a plurality of beam identification resources for identifying a plurality of candidate beams for link recovery; a processor that controls the receiver to monitor the beam identification resources and identifies one or more recovery beams from the candidate beams, upon detection of beam failure; a transmitter that transmits information indicating the recovery beams; wherein the processor further controls the receiver to monitor PDCCH transmitted with the recovery beams.
    Type: Application
    Filed: July 31, 2020
    Publication date: September 7, 2023
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling
  • Publication number: 20230283426
    Abstract: Methods and apparatuses for group-based beam reporting with L1-RSRP measurement for multi-TRP DL transmission are disclosed. In one embodiment, a method comprises receiving a CSI reporting setting linked to two Resource Settings for channel measurement for group based beam reporting, and transmitting a CSI report corresponding to the CSI reporting setting, wherein the CSI report includes two or more CRIs or SSBRIs and their corresponding received powers.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 7, 2023
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20230276454
    Abstract: Apparatuses, methods, and systems are disclosed for configuring UL-TCI states. One method (500) includes receiving (502) a RRC message configuring a set of UL-TCI states. Each UL-TCI state defines at least one uplink spatial relationship. Each uplink spatial relationship corresponds to a spatial domain transmission filter corresponding to a CSI-RS, a SSB, or an SSB. The method (500) includes receiving (504) a MAC CE message comprising information that activates a subset of the set of UL-TCI states for use in an UL-TCI field of DCI used to schedule a codebook-based PUSCH transmission. The method (500) includes receiving (506) the DCI with the UL-TCI field indicating the at least one uplink spatial relationship for the UE to use for the codebook-based PUSCH transmission. The method (500) includes transmitting (508) the codebook-based PUSCH transmission with the at least one uplink spatial relationship indicated by the UL-TCI field in the DCI.
    Type: Application
    Filed: July 23, 2020
    Publication date: August 31, 2023
    Inventors: Chenxi Zhu, Wei Ling, Bingchao Liu, Yi Zhang, Lingling Xiao
  • Publication number: 20230276451
    Abstract: Apparatus and methods of joint search space set for enhanced PDCCH transmission with multiple beams from multiple TRPs are disclosed. The apparatus includes: a processor that generates a plurality of versions of Downlink Control Information (DCI) for transmission from a plurality of transmitting-receiving identities with a plurality of Control Resource Sets (CORESETs), each CORESET being transmitted from one of the transmitting-receiving identities; and configures an Information Element (IE) indicating a joint search space set for the DCI, wherein the joint search space set comprises a plurality of component search space sets; and a transmitter that transmits the DCI and the IE using the plurality of transmitting-receiving identities; wherein each one of the component search space sets is configured for monitoring and detecting one DCI version.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 31, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling
  • Publication number: 20230268974
    Abstract: Embodiments of the present application are related to a method and apparatus for determining quasi co-location (QCL) reference signal (RS). According an embodiment of the present application, an exemplary method includes: receiving first configuration information indicating association between bandwidth part (BWP) and QCL RS; determining a first QCL RS associated with a first BWP, which is indicated by second configuration information or predefined in specification (s); and determining a second QCL RS associated with the first BWP based on the first QCL RS and the association between BWP and QCL RS.
    Type: Application
    Filed: September 30, 2020
    Publication date: August 24, 2023
    Applicant: Lenovo (Beijing) Limited
    Inventors: Hongmei Liu, Zhi Yan, Yuantao Zhang, Bingchao Liu, Haiming Wang
  • Publication number: 20230262503
    Abstract: Methods and apparatuses for jointly reporting CSI in multi-TRP based DL transmission are disclosed. In one embodiment, a method comprises transmitting a CSI reporting setting linked to two or more Resource Settings for channel measurement, wherein the two or more Resource Settings for channel measurement have the same number of CSI-RS resources, and receiving a joint CSI report corresponding to the CSI reporting setting.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 17, 2023
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20230261719
    Abstract: Methods and apparatuses for determining default spatial relation and default PL-RS are disclosed. A method comprises determining a default spatial relation and a default pathloss reference RS (PL-RS) for transmission of uplink resource on a serving cell without configured CORESET, the uplink resource is configured with neither higher layer parameter related to spatial relation nor higher layer parameter related to PL-RS, and the higher layer parameter related to enable default beam for the uplink resource is set to ‘enable’, and transmitting the uplink resource according to the determined default spatial relation and the power determined by the determined default PL-RS.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 17, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao, Yi Zhang
  • Publication number: 20230261833
    Abstract: Apparatuses, methods, and systems are disclosed for transmission using DMRS from two code division multiplexing groups. One method (500) includes transmitting (502) information on a physical downlink shared channel to a user equipment, wherein: the information on the physical downlink shared channel is transmitted by: first demodulation reference signal ports of a first code division multiplexing group having a first number of demodulation reference signal ports; and second demodulation reference signal ports of a second code division multiplexing group having a second number of demodulation reference signal ports, wherein the first code division multiplexing group is different from the second code division multiplexing group, and the first number of demodulation reference signal ports is the same as the second number of demodulation reference signal ports.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 17, 2023
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20230262632
    Abstract: Embodiments of the present application are related to a method and apparatus for determining timing advance value. According an embodiment of the present application, an exemplary method includes: receiving association information between timing advance (TA) value for uplink transmission and downlink reference signal (RS), wherein each TA value is associated with an index of at least one corresponding downlink RS; determining a downlink RS index for associating with a TA value for uplink transmission; and determining the TA value for uplink transmission based on the association information. Accordingly, embodiments of the present application can indicate and determine TA value with reduced signaling overhead.
    Type: Application
    Filed: July 9, 2020
    Publication date: August 17, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Hongmei Liu, Zhi Yan, Yuantao Zhang, Bingchao Liu, Haiming Wang
  • Publication number: 20230254856
    Abstract: Methods and apparatuses for determining default beam(s) are disclosed. A method comprises receiving an activation command for the activated BWP of a serving cell, wherein the activation command contains codepoints pointing to TCI state (s) for PDSCH, and at least one codepoint points to two TCI states; and determining default TCI states for the reception of multiple PDSCH transmission occasions scheduled by a single DCI according to a scheduling offset between the reception of the DCI and the nth PDSCH transmission occasion, wherein n is larger than 1.
    Type: Application
    Filed: May 15, 2020
    Publication date: August 10, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Patent number: 11706001
    Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method comprises: receiving, at a user equipment (UE), a request to determine a spatial information for configuring a sounding reference signal (SRS) resource, and transmitting the SRS resource according to the spatial information determined by the UE.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: July 18, 2023
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Chenxi Zhu, Bingchao Liu, Zhennian Sun, Hongmei Liu, Wei Ling, Yingying Li
  • Publication number: 20230224027
    Abstract: Embodiments of the present application are related to a method and apparatus for sequence determination in wireless transmission. According an embodiment of the present application, an exemplary method includes: receiving configuration information indicating at least one offset value associated with a kind of sequence, wherein each offset value corresponds to a second time domain index offset relative to a first time domain index determined based on synchronization signal block (SSB) associated with the kind of sequence; determining at least one second time domain index associated with the kind of sequence based on the at least one offset value correspondingly; and determining at least one sequence correspondingly based on the at least one second time domain index. Accordingly, embodiments of the present application can allow interference randomization during sequence generation in spite of the unfavorable impact on time domain index.
    Type: Application
    Filed: June 19, 2020
    Publication date: July 13, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Hongmei Liu, Zhi Yan, Yuantao Zhang, Bingchao Liu, Haiming Wang
  • Publication number: 20230224898
    Abstract: Apparatus and methods of dynamic DAI counting and HARQ-ACK codebook generation for enhanced PDCCH transmission are disclosed. The apparatus includes: a processor that generates a common Downlink Assignment Indicator (DAI) value for a set of Physical Downlink Control Channel (PDCCH) transmissions, wherein the set of PDCCH transmissions are used to transmit first Downlink Control Information (DCI) that schedules a common Physical Downlink Shared Channel (PDSCH) transmission, and the common DAI value is generated based on a first reference PDCCH, wherein the first reference PDCCH is one of the PDCCH transmissions; a transmitter that transmits the first Downlink Control Information (DCI) with the set of PDCCH transmissions; and a receiver that receives a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) codebook with feedback information bits ordered based on a second reference PDCCH, wherein the second reference PDCCH is one of the PDCCH transmissions.
    Type: Application
    Filed: June 12, 2020
    Publication date: July 13, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Wei Ling, Lingling Xiao, Yi Zhang, Chenxi Zhu, Bingchao Liu
  • Publication number: 20230217460
    Abstract: Apparatus and methods of span level TDM PDCCH transmission are disclosed. The apparatus includes: a receiver that receives a capability report from a device, wherein the capability report comprises Physical Downlink Control Channel (PDCCH) monitoring capability and/or beam switching capability of the device; a processor that generates PDCCH transmission parameters, based on the capability report, for transmitting a Downlink Control Information (DCI) with a plurality of PDCCH transmissions with span level repetitions; wherein the processor further configures, based on the PDCCH transmission parameters, a plurality of resources for transmitting the DCI, and a search space set for DCI detection in a PDCCH monitoring occasion set; and a transmitter that transmits the DCI in a plurality of DCI versions with the plurality of PDCCH transmissions using the plurality of resources.
    Type: Application
    Filed: June 19, 2020
    Publication date: July 6, 2023
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling, Lingling Xiao
  • Publication number: 20230199729
    Abstract: The present application relates to method and apparatus for slot format indication in Non-terrestrial networks (NTN) system. A method performed by a user equipment (UE) is disclosed, wherein the method comprises: receiving information indicating one or more slot formats, wherein each slot format comprises a plurality of symbols each indicated as a downlink symbol, a uplink symbol or a flexible symbol; and performing transmission or reception based on the one or more slot formats.
    Type: Application
    Filed: June 2, 2020
    Publication date: June 22, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Hongmei Liu, Zhi Yan, Yuantao Zhang, Bingchao Liu, Haiming Wang
  • Publication number: 20230198684
    Abstract: Methods and apparatuses for indicating repetition number of PUCCH are disclosed. A base unit comprises a transmitter that transmits a configuration containing an indication of a repetition number of PUCCH, wherein the configuration is determined according to a type of UCI carried in the PUCCH; and a receiver that receives the PUCCH repeatedly with the repetition number.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 22, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang