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: 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
  • Publication number: 20230403115
    Abstract: Methods and apparatuses for determining phase tracking reference signal (PT-RS) for single frequency network (SFN) based PDSCH transmission are disclosed. A method comprises determining, for each of two PT-RS ports for SFN based PDSCH transmission, an associated DM-RS port with an indicated TCI state, wherein, one or multiple PDSCH layers are scheduled for the SFN based PDSCH transmission; determining, for each of the two PT-RS ports, an RE index in the RB containing PT-RS resources; and receiving the two PT-RS ports associated with two TCI states.
    Type: Application
    Filed: September 18, 2020
    Publication date: December 14, 2023
    Inventors: Bingchao Liu, Chenxi Zhu, Yi Zhang
  • Publication number: 20230396346
    Abstract: Methods and apparatuses for estimating and reporting Doppler shift are disclosed. A method comprises receiving a configuration of CSI Resource Setting associated with a CSI Report Setting for Doppler Shift reporting, wherein the CSI Resource Setting includes one or more TRS resources; estimating a Doppler shift for each of the TRS resources included in the Resource Setting; and transmitting the estimated Doppler shift(s) using a PUCCH or PUSCH resource.
    Type: Application
    Filed: October 20, 2020
    Publication date: December 7, 2023
    Inventors: Bingchao LIU, Chenxi ZHU
  • 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: 20230396386
    Abstract: Apparatuses, methods, and systems are disclosed for downlink control information indicating transmission control indicator states. One method (500) includes transmitting (502), to a UE, a DCI format indicating a PDSCH to the UE, wherein: the PDSCH comprises two TCI states corresponding to a plurality of DMRS antenna ports; a first TCI state of the two TCI states is associated with a first set of DMRS antenna ports of the plurality of DMRS antenna ports; a second TCI state of the two TCI states is associated with a second set of DMRS antenna ports of the plurality of DMRS antenna ports; and a first number of DMRS antenna ports of the first set of DMRS antenna ports is equal to a second number of DMRS antenna ports of the second set of DMRS antenna ports.
    Type: Application
    Filed: September 25, 2020
    Publication date: December 7, 2023
    Inventors: Chenxi Zhu, Bingchao Liu, Yi Zhang
  • Publication number: 20230387993
    Abstract: Methods and apparatuses for reporting CSI for single-DCI based multi-TRP PDSCH transmission are disclosed. In one embodiment, a method comprises receiving a configuration indicating that two CSI reportings are associated with each other; receiving a DCI containing a CSI request field with a non-zero value that simultaneously triggers two CSI reports by associating the non-zero value to the associated two CSI reportings; and transmitting the two CSI reports in a same slot.
    Type: Application
    Filed: October 23, 2020
    Publication date: November 30, 2023
    Inventors: Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG
  • Publication number: 20230371107
    Abstract: Embodiments of the present application relate to methods and apparatuses for a mobility robustness optimization (MRO) mechanism for a fast master cell group (MCG) link recovery procedure and an un-balanced uplink (UL) and downlink (DL) coverage scenario under a 3rd Generation Partnership Project (3GPP) 5G New Radio (NR) system or the like.
    Type: Application
    Filed: October 12, 2020
    Publication date: November 16, 2023
    Applicant: Lenovo (Beijing) Limited
    Inventors: Lianhai Wu, Bingchao Liu, Mingzeng Dai, Jie Shi
  • 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: 20230370144
    Abstract: Apparatus and methods of enhanced CSI-RS resource configuration and transmission for simultaneous UE Rx beam refinement are disclosed. The apparatus includes: a receiver that receives Channel State Information Reference Signal (CSI-RS) configuration comprising one or more CSI-RS resource sets for Receive (Rx) beam refinement, the CSI-RS resource sets comprising a plurality of CSI-RS resources for transmission of a plurality of CSI-RSs that are Frequency-Division Multiplexed (FDMed), wherein the receiver further receives, simultaneously, the CSI-RSs based on one or more Quasi Co-Location (QCL) assumptions; a processor that performs a simultaneous Rx beam refinement corresponding to the CSI-RSs that are FDMed; and a transmitter that transmits a reporting according to a Channel State Information (CSI) reporting configuration.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 16, 2023
    Inventors: Yi ZHANG, Chenxi ZHU, Bingchao LIU, Wei LING
  • Publication number: 20230370219
    Abstract: Methods and apparatuses for PUSCH transmission in multi-DCI based multi-TRP are disclosed. A remote unit comprises a receiver and a transmitter, the receiver receives a configuration, wherein the configuration indicates two SRS resource sets configured with usage ‘codebook’ or ‘non-codebook’, wherein each SRS resource set is associated with a different CORESETPoolIndex value, and the receiver further receives a DCI scheduling a PUSCH transmission, wherein, the DCI includes a SRI field; and the transmitter transmits the PUSCH transmission according to a SRS resource of a SRS resource set for codebook based PUSCH transmission or a SRS resource subset of a SRS resource set for non-codebook based PUSCH transmission, wherein the SRS resource or the SRS resource subset is indicated by the SRI field in the DCI, and wherein the SRS resource set is associated with a CORESETPoolIndex value according to the DCI.
    Type: Application
    Filed: September 11, 2020
    Publication date: November 16, 2023
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang
  • 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: 20230353298
    Abstract: Embodiments of the present application relate to a method and apparatus for mapping physical uplink shared channel (PUSCH) repetitions. An embodiment of the present application provides a method, which includes receiving configuration information indicating a mapping pattern of a plurality of spatial relation information and a number of nominal PUSCH repetitions of a PUSCH transmission using the plurality of spatial relation information; determining a plurality of actual PUSCH repetitions using the plurality of spatial relation information based on the number of the nominal PUSCH repetitions; and transmitting the plurality of actual PUSCH repetitions using the plurality of spatial relation information based on the mapping pattern and a mapping scheme, wherein the mapping scheme is one of: beam mapping per slot, beam mapping per nominal repetition and beam mapping per actual repetition.
    Type: Application
    Filed: June 28, 2020
    Publication date: November 2, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu, Yi Zhang, Wei Ling
  • Publication number: 20230318770
    Abstract: Methods and apparatuses for triggering an aperiodic SRS are disclosed. A method comprises receiving a RRC signaling configuring N triggering offsets for each of P aperiodic SRS resource sets, where N is 1 or more, P is 1 or more; receiving a MAC CE to activate one or more triggering offset(s) among all configured triggering offsets for each of M out of the P aperiodic SRS resource sets, where M is 1 to P; receiving a DCI containing a non-zero SRS request field triggering at least one aperiodic SRS resource set, wherein at least one triggering offset of each triggered aperiodic SRS resource set is activated by the MAC CE; and transmitting SRS resources contained in each triggered aperiodic SRS resource set in the first available slot among all candidate slots indicated by the activated triggering offsets for each triggered aperiodic SRS resource set.
    Type: Application
    Filed: August 14, 2020
    Publication date: October 5, 2023
    Inventors: Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG
  • Publication number: 20230309022
    Abstract: Embodiments of the present disclosure are directed to a method and apparatus for power control of configured grant PUSCH repetition. A method according to an embodiment of the present application may include: receiving a configuration including a mapping pattern and a plurality of pathloss reference RS Ids for a configured grant physical uplink shared channel (PUSCH) transmission, which is configured to be transmitted in a plurality of time intervals repeatedly by higher layer signaling; determining a power of each PUSCH repetition of the configured grant PUSCH transmission based on the configuration; and transmitting the configured grant PUSCH transmission in the plurality of time intervals repeatedly based on the determined power of each PUSCH repetition of the PUSCH transmission and the mapping pattern.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 28, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Yi Zhang
  • Publication number: 20230308241
    Abstract: Methods and apparatuses for configuring enhanced tracking reference signal are disclosed. In one embodiment, a method comprises transmitting a configuration of an enhanced TRS, the configuration of the enhanced TRS includes one or more NZP CSI-RS sets for frequency and timing tracking without source QCL-TypeC RS, wherein each NZP CSI-RS set consists of 4 single port periodic NZP CSI-RS resources in one slot or 8 single port periodic NZP CSI-RS resources in two consecutive slots with the same pattern in each slot.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 28, 2023
    Inventors: Bingchao LIU, Chenxi ZHU, Wei LING, Yi ZHANG
  • Publication number: 20230300770
    Abstract: Embodiments of the present application are directed to a method and apparatus for delay indication. The method may include: receiving at least one signaling indicating at least one of a timing advance (TA) and a time domain difference between reception on a downlink (DL) channel and transmission on an uplink (UL) channel; and determining the at least one of the TA and the time domain difference based on the at least one signaling.
    Type: Application
    Filed: August 21, 2020
    Publication date: September 21, 2023
    Applicant: Lenovo (Beijing) Limited
    Inventors: Hongmei Liu, Zhi Yan, Yuantao Zhang, Bingchao Liu, Haiming Wang