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: 20220408380
    Abstract: Methods and apparatuses for transmission of power control command are disclosed. In one embodiment, a method at a UE comprises receiving two or more TPC commands for PUCCH resources of the UE in a cell, each PUCCH resource is associated with a higher layer index value configured for a CORESET, determining a TPC command for each PUCCH resource according to the higher layer index value; and transmitting each PUCCH resource using the power according to the determined TPC command.
    Type: Application
    Filed: November 15, 2019
    Publication date: December 22, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Yi Zhang
  • Publication number: 20220400041
    Abstract: Embodiments of the present disclosure are directed to methods and apparatuses for PT-RS mapping. In an embodiment of the present disclosure, the method includes transmitting a first set of phase-tracking reference signals in a first plurality of subcarriers within a first resource block set associated with a first TCI state with a first frequency density; transmitting a second set of phase-tracking reference signals in a second plurality of subcarriers within a second resource block set associated with a second TCI state with a second frequency density, where the first resource block set and the second resource block set are frequency division multiplexed in a time interval and a third resource block set composed of the first resource block set and the second resource block set is scheduled by a DCI.
    Type: Application
    Filed: November 8, 2019
    Publication date: December 15, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Lingling Xiao
  • Patent number: 11522596
    Abstract: Methods and apparatuses for beam reporting are disclosed. In one embodiment, a base unit comprises: a transmitter that transmits a set of reference signal (RS) resources for beam management to a remote unit; and a receiver that receives an interference report including at least one of inferences of RS resource, contained in the set of the RS resources to an associated RS resource, wherein each RS resource contained in the set of the RS resources is received at the remote unit with a receiver that is the same as the receiver of the associated RS resource.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 6, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu
  • Patent number: 11522594
    Abstract: The present disclosure relates to method and apparatus for multiple panel and/or multiple beam codebook based PUSCH transmissions. The method includes receiving, at a User Equipment (UE), Downlink Control Information (DCI) including two or more sets of parameters; and performing codebook based Physical Uplink Shared Channel (PUSCH) transmission for transmitting the two or more codewords according to the two or more sets of parameters, respectively; wherein each of the two or more sets of parameters includes at least one of a Sounding Reference Signal Resource Indicator (SRI), a Transmitted Precoding Matrix Indicator (TPMI), a Modulation Coding Scheme (MCS), a New Data Indicator (NDI) and a Redundancy Version (RV).
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: December 6, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Bingchao Liu, Chenxi Zhu, Lingling Xiao
  • Patent number: 11515963
    Abstract: Methods and apparatuses for sending and receiving CSI reports are disclosed. A method, comprising: receiving triggering information for N aperiodic Channel Suite Information (CSI) reports and the CSI reference signal (CSI-RS) resources linked with the N CSI reports, wherein N is an integer greater than 1; determining M CSI reports and calculating M CSIs each indicated by a determined CSI report according to the CSI-RS resources linked with the determined M CSI reports, wherein M is an integer than is less than N; and sending M CSI reports each indicating a calculated CSI.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 29, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Bingchao Liu, Chenxi Zhu, Hongmei Liu, Wei Ling
  • Patent number: 11516746
    Abstract: Apparatuses, methods, and systems are disclosed for determining a power offset parameter. One method (500) includes determining (502) a power vector using at least one sounding reference signal resource. The power vector includes a power corresponding to each port of a device. The method (500) includes determining (504) a power offset parameter based on the power vector, and transmitting (506) the power offset parameter.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: November 29, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Chenxi Zhu, Bingchao Liu
  • Publication number: 20220377630
    Abstract: The present application is related to a method and apparatus for performing a mobility robustness optimization (MRO) mechanism in a handover procedure of a UE under 3GPP 5G New Radio (NR) technology.
    Type: Application
    Filed: November 15, 2019
    Publication date: November 24, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Lianhai Wu, Bingchao Liu, Jing Han, Haiming Wang, Jie Shi
  • Publication number: 20220369339
    Abstract: Apparatuses, methods, and systems are disclosed for transmitting information for PDSCH configurations. One method (400) includes determining (402) configuration information comprising a plurality of instances of a physical downlink shared channel configuration parameter. The method (400) includes transmitting (404) the configuration information to a user equipment, wherein: the physical downlink shared channel configuration parameter is used for a physical downlink shared channel scheduled by downlink control information; the downlink control information is transmitted from a set of resources having a corresponding index of a plurality of indexes; and each index corresponds to an instance of the plurality of instances of the physical downlink shared channel configuration parameter.
    Type: Application
    Filed: September 29, 2019
    Publication date: November 17, 2022
    Inventors: Chenxi Zhu, Bingchao Liu, Wei Ling, Lingling Xiao
  • Publication number: 20220369244
    Abstract: Methods and apparatuses for power headroom report for additional SRS are disclosed. A method at a UE comprises calculating a power headroom (PH) according to additional SRS if SRS is transmitted on the additional SRS symbol(s) in a normal subframe; and reporting at least one type of the PH calculated according to the additional SRS, Type-3 PH and Type-1 PH by a MAC CE.
    Type: Application
    Filed: November 7, 2019
    Publication date: November 17, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu
  • Publication number: 20220361209
    Abstract: Apparatuses, methods, and systems are disclosed for indicating a slot offset corresponding to a downlink control channel. One method (500) includes transmitting (502) first information to a user equipment indicating to the user equipment to receive a downlink data channel a slot offset after a scheduling downlink control channel, wherein: the slot offset comprises at least one slot; the first information indicates a resource allocation entry of a resource allocation table; and each resource allocation entry of the resource allocation table indicates that the slot offset comprises at least one slot.
    Type: Application
    Filed: August 8, 2019
    Publication date: November 10, 2022
    Inventors: Chenxi Zhu, Wei Ling, Bingchao Liu, Lingling Xiao
  • Publication number: 20220352935
    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: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: Bingchao Liu, Chenxi Zhu, Lingling Xiao
  • Publication number: 20220345903
    Abstract: Methods and apparatuses for determining default spatial relation for uplink signals are disclosed. A method comprising: determining a default spatial relation for transmission of an uplink signal if no higher layer parameter for indicating a spatial relation is configured for the transmission of the uplink signal; and transmitting the uplink signal using the determined default spatial relation.
    Type: Application
    Filed: October 11, 2019
    Publication date: October 27, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao
  • Publication number: 20220337381
    Abstract: Apparatus and methods of bandwidth part (BWP) operation for multiple downlink control information (DCI) based multiple transmit receive points (TRP) transmission are disclosed. The apparatus includes: a receiver that receives a plurality of Downlink Control Information (DCIs) in a slot, each of the DCIs having a Bandwidth Part (BWP) indicator field for indicating a BWP for a corresponding downlink (DL) reception or uplink (UL) transmission; and a processor that detects whether any one of the BWPs indicated in the DCIs is different from a current BWP which is used to receive the DCIs; and, upon detection that at least one of the BWPs indicated by the DCIs is different from the current BWP, configures the receiver and/or a transmitter to perform a BWP change.
    Type: Application
    Filed: September 29, 2019
    Publication date: October 20, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao
  • Publication number: 20220330163
    Abstract: Methods, a remote unit and abase unit are disclosed. According to one embodiment, a method at abase unit, comprising: transmitting, to a remote unit, multiple power control parameters for physical uplink control channel (PUCCH) by higher layers signaling; and transmitting, to the remote unit, a transmit power control (TPC) command with downlink control information (DCI) format 2_2 scrambled by transmit power control-physical uplink control channel-radio network temporary identity (TPC-PUCCH-RNTI), wherein the power control parameters include more than 8 P0 values and more than 4 pathloss reference signals (PL-RSs).
    Type: Application
    Filed: August 9, 2019
    Publication date: October 13, 2022
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao
  • Publication number: 20220329385
    Abstract: Methods and apparatuses for configuring multiple scrambling IDs for DL transmissions from multiple TRPs are disclosed. A method comprises grouping CORESETs into two or more CORESET groups, each CORESET group includes one or more CORESETs; and configuring the same number as the number of the CORESET groups of scrambling IDs associated with two or more CORESET groups.
    Type: Application
    Filed: August 2, 2019
    Publication date: October 13, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Lianhai Wu, Lingling Xiao
  • Publication number: 20220321305
    Abstract: Embodiments of the present application relate to methods and apparatuses for Hybrid Automatic Repeat Request-Acknowledge (HARQ-ACK) feedback in multi-Transmit-Receive Point (TRP) transmission. According to an embodiment of the present disclosure, a method can include: transmitting configuration information indicating at least one Physical Uplink Control Channel (PUCCH) resource set; indicating a PUCCH resource of the at least one PUCCH resource set via Downlink Control Information (DCI), wherein the indicated PUCCH resource is at least for carrying a HARQ-ACK; and detecting the HARQ-ACK at least on the indicated PUCCH resource. Embodiments of the present disclosure can increase the robustness of multi-TRP transmission.
    Type: Application
    Filed: May 28, 2019
    Publication date: October 6, 2022
    Inventors: Lingling Xiao, Bingchao Liu, Chenxi Zhu, Wei Ling
  • Publication number: 20220302981
    Abstract: Methods and apparatuses for phase tracking reference signal are disclosed. A method comprises configuring a PT-RS with N PT-RS antenna ports when a ‘Transmission Configuration Indication (TCI)’ field in DCI indicates N TCI states, wherein N is 2 or more; associating each PT-RS antenna port with one DM-RS antenna port; and transmitting the PT-RS with the N PT-RS antenna ports.
    Type: Application
    Filed: September 26, 2019
    Publication date: September 22, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao
  • Publication number: 20220294591
    Abstract: Apparatus and methods of Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback for multiple Physical Downlink Control Channel (PDCCH) based multiple Transmit Receive Points (TRP) transmission are disclosed. The apparatus includes: a receiver that receives a plurality of configurations of control resource sets (CORESETs), wherein each CORESET comprises a plurality of resource blocks (RBs) in frequency domain and a plurality of symbols in time domain, and time-frequency resources identified by the CORESET are used to transmit a Downlink Control Information (DCI); a processor that determines a Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback selected from a group consisting of: a separate HARQ-ACK feedback and a joint HARQ-ACK feedback; and a transmitter that transmits the determined HARQ-ACK feedback; wherein the separate HARQ-ACK feedback is transmitted through a plurality of uplink resources; and the joint HARQ-ACK feedback is transmitted through one uplink resource.
    Type: Application
    Filed: August 1, 2019
    Publication date: September 15, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Haipeng Lei, Wei Ling
  • Publication number: 20220287030
    Abstract: Apparatus and methods of Uplink Control Information (UCI) multiplexing in Physical Uplink Control Channel (PUCCH) resources for multiple Transmit Receive Points (TRPs) are disclosed. The apparatus includes: a processor that determines a first group PUCCH resources associated with a first identity for transmitting a first set of UCIs associated with the first identity, and a second group of PUCCH resources associated with a second identity for transmitting a second group of UCIs associated with the second identity, wherein the first set of UCIs and the second set of UCIs are expected to be transmitted in a same time interval; and a third group of PUCCH resources comprising at least one PUCCH resource selected from the first group of PUCCH resources and the second group of PUCCH resources; and a transmitter that transmits the third group of PUCCH resources in the time interval.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 8, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Wei Ling, Chenxi Zhu, Bingchao Liu, Lingling Xiao
  • Publication number: 20220278787
    Abstract: Apparatus and methods of Transmission Configuration Indication (TCI) states configuration and activation or deactivation for multiple DCI (M-DCI) based multiple TRP (M-TRP) Downlink (DL) transmission are disclosed. The apparatus includes: a receiver that receives a capability report from a remote device, wherein the capability report indicates that the remote device supports 128 or more configurable TCI states; a processor that configures 128 or more TCI states according to the capability report; and a transmitter that transmits a Media Access Control (MAC) Control Element (CE) to activate a subset of the TCI states.
    Type: Application
    Filed: August 23, 2019
    Publication date: September 1, 2022
    Applicant: Lenovo (Beijing) Limited
    Inventors: Bingchao Liu, Chenxi Zhu, Wei Ling, Lianhai Wu