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: 20240072981
    Abstract: Apparatuses, methods, and systems are disclosed for downlink control information having a transmission configuration indicator bitmap. One method (400) includes transmitting (402) downlink control information with a transmission configuration indicator, spatial information, or a combination thereof and a transmission configuration indicator bitmap field. Each bit in the transmission configuration indicator bitmap field indicates whether the transmission configuration indicator, the spatial information, or the combination thereof applies to a channel or resource group.
    Type: Application
    Filed: January 7, 2021
    Publication date: February 29, 2024
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yi Zhang, Lingling Xiao
  • Publication number: 20240073984
    Abstract: Embodiments of the present application relate to methods and apparatuses for a beam failure detection and recovery procedure in a deactivated secondary node (SN) case in a multi-radio dual connectivity (MR-DC) scenario under a 3rd Generation Partnership Project (3GPP) 5G system or the like. According to an embodiment of the present application, a method can include: receiving configuration information relating to at least one of a beam failure detection (BFD) procedure and a beam failure recovery (BFR) procedure; and receiving a deactivation indication associated with a SN of the UE, or determining an expiry of a timer associated with deactivating the SN of the UE, wherein the deactivation indication is included in at least one of: a radio resource control (RRC) message; and a deactivation medium access control (MAC) control element (CE).
    Type: Application
    Filed: January 21, 2021
    Publication date: February 29, 2024
    Inventors: Lianhai Wu, Congchi Zhang, Bingchao Liu, Mingzeng Dai, Le Yan
  • 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: 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
  • Publication number: 20240064593
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses for a conditional path switch in a wireless communication system. According to some embodiments of the disclosure, a method may include: receiving, at a user equipment (UE) from a serving cell, a radio resource control (RRC) reconfiguration message including at least one conditional path switch configuration associated with at least one execution condition; evaluating the at least one execution condition; and initiating a path switch procedure with a target node in response to an execution condition being met. Furthermore, the consecutive path switch may be configured.
    Type: Application
    Filed: December 30, 2020
    Publication date: February 22, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lianhai Wu, Bingchao Liu, Jing Han, Hongmei Liu, Haiming Wang
  • 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
  • Patent number: 11909480
    Abstract: Method and apparatus for reduction of the signaling/resource overhead caused by SRS transmission in UL are disclosed. One method of a UE for the reduction of the signaling/resource overhead caused by SRS transmission in UL includes performing precoding on UL transmission with a precoding matrix corresponding to a CRI, in the case of a frequency of UL and DL being in a same band and Tx/Rx beam correspondence, wherein, the CRI corresponding to the precoding matrix is determined according to a measurement on DL channel quality; and transmitting a report of the measurement on DL channel quality to a base station.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 20, 2024
    Assignee: Lenovo (Beijing) Limited
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Yingying Li
  • 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: 20240040583
    Abstract: Methods and apparatuses for common TX beam indication and application for UL transmission are disclosed. In one embodiment, a method comprises receiving a higher layer parameter to enable common UL beam for UL transmission for a serving cell; receiving a DCI format 1_1 or 1_2 containing TCI field indicating a TCI state; and determining the common UL beam for UL transmission and the power control parameters for the UL transmission according to the TCI state indicated in the TCI field of the DCI.
    Type: Application
    Filed: December 29, 2020
    Publication date: February 1, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Hongmei Liu, Lianhai Wu, Haiming Wang
  • Publication number: 20240023132
    Abstract: Methods and apparatus of enhanced counting schemes for candidates of enhanced PDCCH are disclosed. The method includes: counting, by a processor, candidates of PDCCH that are to be transmitted with a plurality of transmissions, based on a candidate counting scheme, wherein the candidates are linked with one another for transmissions of the PDCCH; generating, by the processor, configuration signaling of one or more search space sets for monitoring transmissions of the PDCCH; and transmitting, by a transmitter, the configuration signaling and the candidates of the PDCCH.
    Type: Application
    Filed: October 22, 2020
    Publication date: January 18, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Yi Zhang, Chenxi Zhu, Bingchao Liu, Wei Ling
  • 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: 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: 20240007879
    Abstract: Methods and apparatuses for MAC CE based beam failure recovery in multi-TRP scenario are disclosed. In one embodiment, a method comprises transmitting a capability report on supporting configuration of multiple BFD RS sets for a serving cell; and receiving a configuration including at least two NBI (new beam identification) RS sets and two BFI (beam failure indication) counters for the serving cell.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 4, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Lianhai Wu, Wei Ling, Yi Zhang
  • 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: 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: 20230412337
    Abstract: Embodiments of the present application are related to a method and apparatus for determining active bandwidth part (BWP). According an embodiment of the present application, an exemplary method includes: receiving first configuration information indicating association between BWP and reference signal (RS); determining a first RS, which is indicated by second configuration information, or user equipment (UE) selected, or predefined in specification(s); and determining an active BWP based on the first RS and the association between BWP and RS.
    Type: Application
    Filed: October 14, 2020
    Publication date: December 21, 2023
    Inventors: Hongmei LIU, Zhi YAN, Yuantao ZHANG, Bingchao LIU, Haiming WANG
  • Publication number: 20230412240
    Abstract: Embodiments of the present disclosure are directed to a method and apparatus for beam failure recovery in multi-downlink control information (DCI) based multiple transmit-receive points (TRPs). A method according to an embodiment of the present application may include: receiving a configuration including a plurality of sets of failure detection beams and a plurality of sets of candidate beams, each set of failure detection beams and each set of candidate beams are associated with one of a plurality of CORESETPoolIndex values; and transmitting a beam failure recovery request in an uplink transmission when all beams in a set of failure detection beams in the plurality of sets of failure detection beams associated with a first CORESETPoolIndex value of the plurality of CORESETPoolIndex values are failed in a slot.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 21, 2023
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang
  • Publication number: 20230413197
    Abstract: Apparatuses, methods, and systems are disclosed for Doppler shift frequency determination and compensation. One method (600) includes transmitting (602), from a first transmission reception point, a first reference signal to a user equipment on a first frequency. In certain embodiments, the method (600) includes receiving (604), at the first transmission reception point, a second reference signal from the user equipment on a second frequency, wherein the second frequency is based on a third frequency on which the user equipment received the first reference signal. In some embodiments, the method (600) includes determining (606) a first Doppler shift frequency using the first frequency and the second frequency.
    Type: Application
    Filed: October 9, 2020
    Publication date: December 21, 2023
    Inventors: Chenxi Zhu, Bingchao Liu