Patents by Inventor LINGLING XIAO

LINGLING XIAO 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: 20240063880
    Abstract: Embodiments of the present application are related to a method and apparatus for uplink transmission. An exemplary method of the present application includes: receiving a downlink control information (DCI) indicating a set of common transmission configuration indication (TCI) states for uplink transmission; and in response to the set of common TCI states being applicable for the uplink transmission, transmitting uplink transmission with repetition according to at least part of the set of common TCI states; or transmitting uplink transmission without repetition according to one of the set of common TCI states or an additional TCI state instead of the set of common TCI states.
    Type: Application
    Filed: January 11, 2021
    Publication date: February 22, 2024
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang, Lingling Xiao
  • Publication number: 20240063959
    Abstract: Methods and apparatuses for inter-cell multi-TRP operation are disclosed. In one embodiment, a method comprises receiving a configuration of different CORESETPoolIndex values for different CORESETs, wherein, CORESETPoolIndex=0 is associated with a PCID of a serving cell and the higher layer parameter CORESETPoolIndex=1 is associated with a PCID of a non-serving cell that is different from the PCID of the serving cell; and receiving a configuration of a SSB from the non-serving cell configured as a RS to the signal associated with CORESETPoolIndex=1.
    Type: Application
    Filed: January 12, 2021
    Publication date: February 22, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240064765
    Abstract: Apparatuses, methods, and systems are disclosed for DCI feedback. One method (400) includes transmitting (402) DCI to a user equipment. The DCI comprises a transmission configuration indicator field, and the transmission configuration indicator field signals at least one common beam for transmissions on at least one channel, at least one reference signal resource, or a combination thereof. The method (400) includes receiving (404) a hybrid automatic repeat request codebook from the user equipment. The hybrid automatic repeat request codebook comprises a DCI feedback bit indicating whether the user equipment successfully received the DCI.
    Type: Application
    Filed: January 14, 2021
    Publication date: February 22, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Patent number: 11909473
    Abstract: Methods, a base unit and a remote unit are disclosed. A method comprises determining two or more SRS resource sets for codebook or non-codebook based UL transmission of the mobile unit in the condition that the number of antenna ports simultaneously used by the mobile unit for transmitting is smaller than the number of antenna ports simultaneously used by the mobile unit for receiving; and transmitting a trigger associated with the two or more SRS resource sets to the mobile unit to trigger SRS resource transmissions by the mobile unit.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: February 20, 2024
    Assignee: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Lingling Xiao
  • Publication number: 20240057113
    Abstract: Apparatuses, methods, and systems are disclosed for transmission timing based on downlink control information. One method (600) includes transmitting (602) first downlink control information indicating a first transmission configuration indicator for a user equipment to receive a first physical downlink shared channel transmission. The method (600) includes transmitting (604) the first physical downlink shared channel transmission with the first transmission configuration indicator if a time between the first downlink control information and the first physical downlink shared channel transmission is greater than or equal to a first time. The method (600) includes transmitting (606) second physical downlink shared channel transmissions with the first transmission configuration indicator after a second time, wherein the second time is after a first acknowledgement corresponding to the first downlink control information has been received.
    Type: Application
    Filed: January 5, 2021
    Publication date: February 15, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240057075
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for multiple transmit-receive points (multi-TRP) transmission. According to an embodiment of the present disclosure, a method can include: receiving at least two configured grant (CG) configurations in a bandwidth part (BWP); receiving association information for associating the at least two CG configurations; and transmitting one or more repetitions of a transport block (TB) on one or more physical uplink shared channel (PUSCH) transmission occasions from each CG configuration of the at least two CG configurations based on the association information. Embodiments of the present disclosure can support the TB transmitted toward multi-TRP according to the multiple CG configurations.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 15, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20240015525
    Abstract: Disclosed are methods for an uplink signal transmission. One embodiment of the subject application provides a method performed by a UE, including determining a spatial relation for a Physical Uplink Shared Channel transmission scheduled by Downlink Control Information format 0_0 in response to that a Physical Uplink Control Channel resource with the lowest Identification among at least one PUCCH resource configured in an active uplink bandwidth part of a serving cell is activated with at least two spatial relations, and performing the PUSCH transmission at least according to the spatial relation with a transmission power calculated based on a pathloss reference signal. Related apparatuses are also disclosed.
    Type: Application
    Filed: November 30, 2020
    Publication date: January 11, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20240015740
    Abstract: The present application relates to a method and an apparatus for downlink transmission in physical downlink control channel. The method includes: determining at least one transmission configuration indicator (TCI) state for receiving a physical down-link shared channel (PDSCH) or an aperiodic channel state information reference signal (AP CSI-RS), wherein multiple TCI states are activated for at least one control resource set (CORESET) in active bandwidth part (BWP) in serving cell; and receiving the PDSCH or the AP CSI-RS according to the determined at least one TCI state.
    Type: Application
    Filed: July 31, 2020
    Publication date: January 11, 2024
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20230413081
    Abstract: Embodiments of the present application are directed to a method and apparatus for enhanced PDCCH monitoring on overlapping PDCCH monitoring occasions. A method according to an embodiment of the present application may include: receiving configuration information for monitoring a plurality of physical downlink control channel (PDCCH) transmissions, wherein the configuration information includes a plurality of search space sets; selecting at least one search space set with different quasi co-location (QCL)-Type D information from each other for monitoring from the plurality of search space sets based on a rule; and monitoring at least one search space set including the selected at least one search space set on monitoring occasions.
    Type: Application
    Filed: October 12, 2020
    Publication date: December 21, 2023
    Inventors: Yi ZHANG, Chenxi ZHU, Bingchao LIU, Wei LING, Lingling XIAO
  • Publication number: 20230413257
    Abstract: Embodiments of the present disclosure relate to methods and apparatus for semi-persistent scheduling (SPS) downlink transmission. According to an embodiment of the present disclosure, a method may include: receiving a set of first downlink control information (DCI) on at least one control resource set (CORESET) for activating a set of SPS configurations, wherein each CORESET is configured with a CORESETPoolIndex, and each of the set of first DCI activates a corresponding one of the set of SPS configurations; and receiving a set of second DCI on at least one first CORESET configured with a first CORESETPoolIndex, wherein each second DCI only deactivates first one or more SPS configurations of the set of SPS configurations activated by first one or more first DCI received on one or more CORESETs configured with the first CORESETPoolIndex.
    Type: Application
    Filed: October 10, 2020
    Publication date: December 21, 2023
    Inventors: Lingling XIAO, Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG
  • Publication number: 20230397193
    Abstract: Methods and apparatuses for transmitting and receiving PUSCH with joint TCI states are disclosed. A method comprises receiving a UL grant including a TCI field having a TCI codepoint pointing to one or two TCI states, wherein the UL grant schedules one or two PUSCH transmissions; and transmitting the PUSCH transmission (s) by the TX beam (s) determined by the TCI state (s) pointed to by the TCI codepoint.
    Type: Application
    Filed: September 29, 2020
    Publication date: December 7, 2023
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20230370238
    Abstract: Methods and apparatuses for simultaneously activating DL TCI states and UL TCI states are disclosed. A method comprises transmitting one MAC CE that can simultaneously activate DL TCI states and UL TCI states, wherein the one MAC CE includes TCI state IDs that can be indicated as DL TCI state IDs identifying the DL TCI states to be activated and/or UL TCI state IDs identifying the UL TCI states to be activated.
    Type: Application
    Filed: October 9, 2020
    Publication date: November 16, 2023
    Inventors: Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG, Lingling XIAO
  • Publication number: 20230371038
    Abstract: Apparatuses, methods, and systems are disclosed for multiple downlink control information transmissions. One method (700) includes transmitting (702), to a user equipment, downlink control information a plurality of times, wherein: each transmission of the downlink control information comprises the same downlink control information; and each transmission of the downlink control information is in a physical downlink control channel candidate in a configured control resources set.
    Type: Application
    Filed: September 25, 2020
    Publication date: November 16, 2023
    Inventors: Chenxi Zhu, Bingchao Liu, Yi Zhang, Wei Ling, Lingling Xiao
  • Publication number: 20230362665
    Abstract: Disclosed are methods for an uplink signal transmission. One embodiment of the subject application provides a method performed by a UE, including selecting a Transmission Configuration Indicator (TCI) state from one or more TCI states of one or more Control Resource Sets (CORESETs) in the active bandwidth part (BWP) in a scheduled serving cell, and determining a default spatial relation and/or a default pathloss RS for an uplink signal transmission by an RS with Quasi Co-Location TypeD corresponding to the TCI state. Related apparatuses are also disclosed.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 9, 2023
    Inventors: Lingling XIAO, Bingchao LIU, Chenxi ZHU, Wei LING, 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: 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: 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: 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