Patents by Inventor Hongmei Liu

Hongmei 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: 20230030756
    Abstract: Embodiments of the present application relate to a method and an apparatus for reducing operations of monitoring PDCCH. According to an embodiment of the present application, a method can include: receiving configuration information indicating a plurality of search space sets and an activation or deactivation state for each search space set of the plurality of search space sets; and receiving an activation-deactivation indication in first downlink control information (DCI) in a first search space set in an activation state of the plurality of search space sets, wherein the activation-deactivation indication is configured to: trigger switching at least one second search space set of the plurality of search space sets from a deactivation state to an activation state; or trigger switching the at least one second search space set of the plurality of search space sets from an activation state to a deactivation state.
    Type: Application
    Filed: January 10, 2020
    Publication date: February 2, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yuantao Zhang, Yi Zhang, Zhi Yan, Hongmei Liu, Haiming Wang
  • Patent number: 11564207
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of performing the uplink (UL) transmission and receiving. In one embodiment of the present disclosure, a method of performing the UL transmission comprises: determining a transmission start position for the UL transmission from a plurality of potential start positions in a subframe in response to detecting of a clear channel on an unlicensed carrier; and performing the UL transmission from the determined transmission start position.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: January 24, 2023
    Assignee: NEC CORPORATION
    Inventors: Lei Jiang, Hongmei Liu, Gang Wang
  • Publication number: 20230021146
    Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer program for signal configuration in a wireless communication system. A method implemented at a network device comprises: transmitting information related to a resource allocation for a signal, and broadcasting the signal in accordance with the resource allocation; wherein the signal includes at least one of: a reference signal and a control signal containing system information. By virtue of the method, resource utilization may be more flexibly controlled.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 19, 2023
    Applicant: NEC CORPORATION
    Inventors: Chuangxin JIANG, Yukai GAO, Hongmei LIU, Gang WANG
  • Patent number: 11558858
    Abstract: Apparatuses, methods, and systems are disclosed for transmitting and/or receiving an indication for a transmission scheme. One method includes determining a transmission scheme for transmitting a first channel. The method includes transmitting an indication of the transmission scheme to a base unit. The indication is based on the transmission scheme.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 17, 2023
    Assignee: Lenovo (Beijing) Limited
    Inventors: Hongchao Li, Hongmei Liu, Lianhai Wu, Lingling Xiao
  • Publication number: 20230008945
    Abstract: Embodiments of the present application relate to a method and an apparatus for uplink data transmission. According to an embodiment of the present application, a method can include: transmitting first message for subsequent data transmission from a UE; receiving information indicating a set of demodulation reference signal (DMRS) parameters; and determining at least one DMRS parameter for the subsequent data transmission from the UE based on the received information. Embodiments of the present application provide a technical solution for uplink data transmission for a UE in a RRC INACTIVE state. Accordingly, embodiments of the present application can facilitate the implementation of uplink (UL) data transmission for the UE in the RRC INACTIVE state.
    Type: Application
    Filed: January 3, 2020
    Publication date: January 12, 2023
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yuantao Zhang, Yi Zhang, Hongmei Liu, Haiming Wang
  • Patent number: 11546109
    Abstract: The present application relates to a method and apparatus for MPDCCH performance enhancement. One embodiment of the present disclosure provides an apparatus comprising: a receiver that receives a first reference signal, a second reference signal and a control signal; and a processer that decodes the control signal based on at least one of: the first reference signal and the second reference signal, wherein the second reference signal on an antenna port is associated with a precoder, and the antenna port of the second reference signal and the precoder for the antenna port of the second reference signal are adopted within a time duration and a frequency band.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 3, 2023
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Zhi Yan, Hongmei Liu, Haipeng Lei, Haiming Wang
  • Publication number: 20220417762
    Abstract: Embodiments of the present disclosure provide a method of performing transmission between a base station and a terminal device according to a frame structure over an unlicensed spectrum in a wireless network that supports communications over both a licensed spectrum and the unlicensed spectrum. The method comprises signaling information indicating the frame structure and performing transmission between the base station and the terminal device on an unlicensed carrier in the unlicensed spectrum according to the frame structure. There is also provided the corresponding apparatus.
    Type: Application
    Filed: July 25, 2022
    Publication date: December 29, 2022
    Applicant: NEC Corporation
    Inventors: Lei JIANG, Hongmei Liu, Chuangxin Jiang, Gang Wang
  • Publication number: 20220418000
    Abstract: Embodiments of the present application relate to a method and an apparatus for random access procedure. According to an embodiment of the present application, a method can include: receiving, at a user equipment (UE), synchronization information; and determining an initial uplink (UL) bandwidth part (BWP) for the UE based on a random access channel (RACH) occasion associated with the synchronization information. Embodiments of the present application provide methods for determining an initial UL BWP for the UE. Accordingly, embodiments of the present application can facilitate the implementation of the random access procedure for the NR-Light UE.
    Type: Application
    Filed: November 15, 2019
    Publication date: December 29, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yuantao Zhang, Hongmei Liu, Zhi Yan, Yingying Li, Haipeng Lei, Haiming Wang
  • Publication number: 20220408491
    Abstract: Embodiments of the present application are related to a method and apparatus for physical random access channel (PRACH) repetitions. A method according to an embodiment of the present application includes: receiving signaling information for indicating a synchronization signal block (SSB) group size; mapping indices of a plurality of SSBs to a plurality of physical random access channel (PRACH) occasions for a number of PRACH repetitions, wherein the plurality of SSBs are divided into one or more SSB groups based on the indicated SSB group size; and determining a set of PRACH occasions corresponding to one of the indices of the plurality of SSBs from the plurality of PRACH occasions based on the mapping.
    Type: Application
    Filed: November 8, 2019
    Publication date: December 22, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Hongmei Liu, Zhi Yan, Yingying Li, Yuantao Zhang, Haipeng Lei
  • Publication number: 20220394601
    Abstract: The present disclosure is related to a method and apparatus for wireless communication. A method performed by a user equipment, comprising: determining a first control resource set based on configuration information associated with a second control resource set; and determining a first search space based on configuration information associated with a second search space, wherein the first control resource set is associated with the first search space and the second control resource set is associated with the second search space.
    Type: Application
    Filed: November 15, 2019
    Publication date: December 8, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yuantao Zhang, Hongmei Liu, Zhi Yan, Yingying Li, Haipeng Lei, Haiming Wang
  • Publication number: 20220394617
    Abstract: Methods, a remote unit and a base unit are disclosed. According to one embodiment, a method at a base unit, comprising: generating a wake up signal (WUS) set consisted of a number of WUSs to indicate that are mote unit shall attempt to receive a paging message in a paging occasion (PO) on a Physical Downlink Control Channel (PDCCH) in a cell, mapping each of the WUSs to a number of resource sets, transmitting, to the remote unit, the WUS set on a time-frequency resource, wherein the PO is a set of PDCCH monitoring occasions (MOs), wherein the number of the WUSs is determined by the number of Synchronization Signal Blocks (SSBs) actually transmitted by the base unit, and wherein the Kth WUS and the Kth transmitted SSB are quasi co-located, where K is an integer no more than the number of the WUSs.
    Type: Application
    Filed: November 22, 2019
    Publication date: December 8, 2022
    Applicant: Lenovo (Beijing) Ltd.
    Inventors: Yingying Li, Zhi Yan, Haipeng Lei, Hongmei Liu, Jie Shi
  • 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: 11496280
    Abstract: The present disclosure is related to a method and apparatus for DMRS transmission. According an embodiment of the disclosure, a method including determining at least one antenna port for a user equipment (UE); determining a demodulation reference signal (DMRS) resource for each of the at least one antenna port respectively; determining the number of symbols for carrying the determined DMRS resource in time domain; and indicating the determined DMRS resource of each of the at least one antenna port to the UE. Embodiments of the disclosure solve the technical problem of indicating DMRS resource and determining symbol/subcarriers for carrying the DMRS resource during DMRS transmission.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 8, 2022
    Assignee: Lenovo (Beijing) Limited
    Inventors: Hongmei Liu, Zhennian Sun, Chenxi Zhu, Hongchao Li, Haipeng Lei
  • Publication number: 20220353824
    Abstract: Methods and apparatuses for power control are disclosed. A method comprises: receiving a first signaling indicating one or multiple power values for a downlink reception from a node, each power value being associated with a spatial domain filter, and determining a power value for the downlink reception from the node.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Inventors: Hongmei Liu, Lianhai Wu, Haipeng Lei, Zhennian Sun, Zhi Yan
  • Patent number: 11490321
    Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method comprises: receiving, at a communication device, a first broadcasting message from a base station, the first broadcasting message including a first information for backhaul link selection; determining a channel quality between the communication device and the base station; and determining to access either the base station or a candidate node according to the first broadcasting message and the channel quality.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: November 1, 2022
    Inventors: Lianhai Wu, Jing Han, Haiming Wang, Hongmei Liu, Zhuoyun Zhang
  • Patent number: 11483811
    Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer program for signal configuration in a wireless communication system. A method implemented at a network device comprises: transmitting information related to a resource allocation for a signal, and broadcasting the signal in accordance with the resource allocation; wherein the signal includes at least one of: a reference signal and a control signal containing system information. By virtue of the method, resource utilization may be more flexibly controlled.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 25, 2022
    Assignee: NEC CORPORATION
    Inventors: Chuangxin Jiang, Yukai Gao, Hongmei Liu, Gang Wang
  • Publication number: 20220294589
    Abstract: Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein the target transmission pattern is indicated by a signal including one or more of: a reference signal, a signal for performing CRC, and a feedback signal; and performing communication between a network device and a terminal device by using the target transmission pattern.
    Type: Application
    Filed: April 4, 2022
    Publication date: September 15, 2022
    Applicant: NEC CORPORATION
    Inventors: Yukai GAO, Chuangxin JIANG, Zhennian SUN, Lei JIANG, Hongmei LIU, Gang WANG
  • Patent number: 11445446
    Abstract: Methods and apparatuses for power control are disclosed. A method comprises: receiving a first signaling indicating one or multiple power values for a downlink reception from a node, each power value being associated with a spatial domain filter, and determining a power value for the downlink reception from the node.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 13, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Hongmei Liu, Lianhai Wu, Haipeng Lei, Zhennian Sun, Zhi Yan
  • Patent number: 11432160
    Abstract: Embodiments of the present disclosure provide a method of performing transmission between a base station and a terminal device according to a frame structure over an unlicensed spectrum in a wireless network that supports communications over both a licensed spectrum and the unlicensed spectrum. The method comprises signaling information indicating the frame structure and performing transmission between the base station and the terminal device on an unlicensed carrier in the unlicensed spectrum according to the frame structure. There is also provided the corresponding apparatus.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: August 30, 2022
    Assignee: NEC CORPORATION
    Inventors: Lei Jiang, Hongmei Liu, Chuangxin Jiang, Gang Wang
  • Patent number: 11424888
    Abstract: Apparatuses, methods, and systems are disclosed for demodulation reference signal configuration. One apparatus (200) includes a receiver (212) configured to receive (502) a demodulation reference signal configuration for a physical downlink shared channel. The apparatus (200) also includes the receiver (212) configured to receive (504) a demodulation reference signal based on the demodulation reference signal configuration.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: August 23, 2022
    Assignee: Motorola Mobility LLC
    Inventors: Hongmei Liu, Chenxi Zhu, Zhennian Sun, Haiming Wang