Patents by Inventor Xingqing Cheng

Xingqing Cheng 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: 20220123903
    Abstract: A communication method and apparatus are provided. The method includes: A terminal device determines a first transmission time period and a second transmission time period, where the first transmission time period includes X1 time units, the second transmission time period includes X2 time units, and the first transmission time period does not overlap the second transmission time period. The terminal device sends a first reference signal in the first transmission time period and a first uplink signal in the second transmission time period, where the first uplink signal includes at least one of a PUSCH, a PUCCH, or a DMRS. Therefore, the terminal device may additionally send the first reference signal, to improve uplink channel estimation performance of a network device. This improves coverage performance of a communication system.
    Type: Application
    Filed: December 27, 2021
    Publication date: April 21, 2022
    Inventors: Yongqiang FEI, Xinqian XIE, Zhiheng GUO, Xingqing CHENG
  • Publication number: 20220095248
    Abstract: Embodiments of this application provide a data transmission method, an apparatus, and a system. The method includes: A terminal device determines first transmission time, and sends uplink data at a first power within the first transmission time. Correspondingly, a network device determines the first transmission time, and receives the uplink data within the first transmission time. Second transmission time includes the first transmission time, the first transmission time includes N1 time units, the second transmission time includes N2 time units, N1 is a positive integer, and N2 is a positive integer greater than N1.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Inventors: Yongqiang FEI, Xinqian XIE, Zhiheng GUO, Xingqing CHENG
  • Patent number: 11271672
    Abstract: A method includes: reporting, by a UE, a CQI value to an eNB; receiving, by the UE, an MCS value sent by the eNB, where the MCS value is determined by the eNB according to the CQI value; and receiving, by the UE, PDSCH data according to the MCS value, where the CQI value and the MCS value are determined according to a second set of tables, where a modulation scheme that can be supported by the second set of tables is higher than 64QAM.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: March 8, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jianbing Yang, Yang Li, Xingqing Cheng, Lei Wan
  • Patent number: 11265131
    Abstract: The present application discloses a control information sending method that includes: determining, by the user equipment, a first pattern from a preset set of patterns, wherein the pattern corresponds to an aggregation level for control information in each subframe of multiple subframes, and/or a resource indicator for a resource that is used for the control information in each subframe of the multiple subframes; and acquiring, by the user equipment, the control information mapped on the resource in each subframe of the multiple subframes according to the first pattern.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: March 1, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zheng Yu, Jinhuan Xia, Xingqing Cheng
  • Publication number: 20220039170
    Abstract: A physical random access channel enhanced transmission method, a network device, and a terminal are disclosed, where implementation of the terminal is used as an example, and the terminal includes: a processor, configured to determine level information of physical random access channel PRACH enhanced transmission; and to determine a first characteristic parameter that is of PRACH enhanced transmission and that is related to the determined level information of PRACH enhanced transmission, where the first characteristic parameter includes transmit power and a preamble format; and a transmitter, configured to perform PRACH enhanced sending according to the first characteristic parameter determined by the processor.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 3, 2022
    Inventors: Fang NAN, Xingqing CHENG, Zheng YU
  • Publication number: 20220022217
    Abstract: Embodiments of this application provide a communication method and device. The method includes: A first device determines first control information, where the first control information includes first indication information and second indication information, where the first indication information is used to indicate a state of preconfigured-resource transmission, and the state includes successful transmission, unsuccessful transmission, scheduling retransmission, or preconfigured-resource retransmission; and the second indication information is used to indicate whether the first device transmits first information, and the first information includes higher layer data and/or preconfigured uplink resource reconfiguration information. The first device sends the first control information to a second device.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Wenping BI, Zheng YU, Xiang MI, Yubo YANG, Xingqing CHENG
  • Publication number: 20220022021
    Abstract: A communication method includes: a first device determines first control information, where the first control information carries first information, and the first information is used to indicate emergency information; and the first control information is format-3 control information, format-3A control information, format-6-0A control information, format-6-0B control information, format-6-1A control information, or format-6-1B control information; the first device sends the first control information to a second device; and the first device sends the emergency information to the second device. The method expands coverage of a network, and may be applied to an internet of things (IoT), for example, machine type communication (MTC), a long term evolution-machine (LTE-M), or machine-to-machine (M2M).
    Type: Application
    Filed: September 28, 2021
    Publication date: January 20, 2022
    Inventors: Wenping BI, Zheng YU, Yubo YANG, Xingqing CHENG
  • Publication number: 20220022117
    Abstract: The present disclosure discloses example communication methods and an example communication device. One example communication method includes receiving, by a communication device and from a first network device in a first communication system, a first access parameter used to access the first communication system and a second access parameter used to access a second communication system, where a system bandwidth of the first communication system is different from a system bandwidth of the second communication system. The first communication system is switched by the communication device to the second communication system based on the second access parameter when a switching condition of switching from the first communication system to the second communication system is satisfied.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Inventors: Zhihu LUO, Wenping BI, Zhe JIN, Xingqing CHENG, Xiang MI, Yuwan SU
  • Patent number: 11229041
    Abstract: Embodiments of the present invention disclose a downlink control information (DCI) transmission method, a network device, and user equipment. The method includes the following steps: A network device transmits DCI in a first DCI format; when the DCI is used to schedule a physical downlink shared channel (PDSCH) carrying a multicast traffic channel, the network device indicates, by using a first radio network temporary identifier (RNTI), that the DCI is used to schedule the PDSCH carrying the multicast traffic channel, and that first information is indicated in the DCI and second information is not indicated in the DCI; and when the DCI is used to schedule a user equipment-specific (UE-specific) PDSCH, the network device indicates, by using a second RNTI, that the DCI is used to schedule the UE-specific PDSCH, and that the first information is not indicated in the DCI and the second information is indicated in the DCI.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: January 18, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zheng Yu, Chao Luo, Xingqing Cheng
  • Patent number: 11202323
    Abstract: An embodiment of this application provides a data transmission method and apparatus. The method includes: receiving, by a base station, a random access preamble sequence from a terminal; and sending, by the base station, a media access control (MAC) packet data unit (PDU) to the terminal based on the random access preamble sequence, where the MAC PDU includes a type indication field, and the type indication field indicates a manner in which the terminal transmits data in first uplink information. In this embodiment of this application, a data transmission delay can be reduced.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: December 14, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yue Zhao, Fang Nan, Zheng Yu, Xingqing Cheng
  • Publication number: 20210378001
    Abstract: Embodiments of this application provide a solution for network and terminal devices that have inconsistent understandings of retransmission scheduled by using downlink control information (DCI). The solution includes: A network device sends first DCI to a terminal device, and the terminal device receives the first DCI from the network device, where the first DCI includes a first field and a second field, the first field indicates that a retransmitted transport block (TB) exists in a TB scheduled by using the first DCI, and the second field indicates an index of a retransmitted first TB in the TB scheduled by using the first DCI; and the terminal device receives the retransmitted first TB from the network device based on the first field and the second field; or the terminal device sends the retransmitted first TB to the network device based on the first field and the second field.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventors: Zhihu LUO, Jun LI, Xingqing CHENG, Zhe JIN
  • Publication number: 20210377934
    Abstract: In one embodiment, a terminal device and a network device each determine a quantity M of hybrid automatic repeat request (HARQ) processes supported by the terminal device. The network device sends downlink control information (DCI) to the terminal device. The DCI includes a first field that indicates a quantity N of transport blocks (TBs) scheduled by the DCI, where N is a positive integer greater than 1. If M=1, the terminal device receives or sends, in the HARQ process, an initially transmitted TB and/or a retransmitted TB in the N TBs scheduled by the DCI. If M is greater than 1, and N is less than or equal to M, the terminal device receives or sends, in N HARQ processes in the M HARQ processes, the N TBs scheduled by the DCI, where each of the N HARQ processes corresponds to one TB in the N TBs.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventors: Zhihu LUO, Jun LI, Xingqing CHENG, Zhe JIN
  • Publication number: 20210377895
    Abstract: A communication method and device, the method including determining, by a terminal device, first information and second information, where the first information is associated with a validity of a timing advance (TA), determining, by the terminal device, N TA verification criteria based on the second information, where N is an integer greater than or equal to 1, and where each TA verification criterion of the N TA verification criteria is associated with the respective TA verification criterion holding true when a specified condition is met, and determining, by the terminal device, the validity of the TA based on the first information and the N TA verification criteria.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventors: Wenping Bi, Zheng Yu, Xingqing Cheng, Xinqian Xie, Yongqiang Fei
  • Patent number: 11166268
    Abstract: A control information format processing method, a base station, and an apparatus are provided. The method includes: determining a control information format of downlink control information; in response to determining that the control information format of the downlink control information is a first control information format, determining that a first field included in the downlink control information corresponding to the first control information format indicates a valid setting; or in response to determining that the control information format of the downlink control information is a second control information format, determining that a second field included in the downlink control information corresponding to the second control information format indicates an invalid setting; and sending the downlink control information to a user equipment (UE).
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 2, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zheng Yu, Xingqing Cheng
  • Publication number: 20210314936
    Abstract: The present disclosure relates to retuning methods and apparatus. One example method includes determining a first resource and a second resource, where the first resource is used to receive a physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH), the first resource is determined based on a first frequency domain resource and M consecutive symbols of a downlink pilot timeslot in a special subframe, the second resource is used to send a sounding reference signal (SRS), the second resource is determined based on a second frequency domain resource and an uplink pilot timeslot in the special subframe, all or a part of the second frequency domain resource is not in the first frequency domain resource, and determining, in the last N consecutive symbols of the downlink pilot timeslot, a guard period for retuning.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Yongqiang FEI, Zheng YU, Xingqing CHENG
  • Publication number: 20210288753
    Abstract: This application provides an uplink signal sending method and a terminal. The terminal may determine a symbol that needs to be punctured, and send the uplink signal based on the symbol that needs to be punctured, so that conflicting use of the overlapping symbol is avoided. Further, the terminal may notify the source cell and/or the target cell of the symbol that needs to be punctured, so that the source cell or the target cell improves, according to a notification indication, decoding on the uplink signal sent by the terminal.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Xizeng DAI, Hong WANG, Jian ZHANG, Xingqing CHENG
  • Publication number: 20210289410
    Abstract: This application provides a downlink signal receiving method, a terminal, and a source base station. The method includes: A terminal may receive downlink signals from a source base station and a target base station in a handover process. When receiving no downlink signal from the target base station, the terminal receives the downlink signal only from the source base station. In addition, after handover is completed, the terminal receives the downlink signal only from the target base station, so that the terminal can still receive the downlink signal from the source base station in the handover process. Therefore, downlink signal transmission interruption caused by the handover process may be reduced to 0 ms or nearly 0 ms. In other words, zero interruption or nearly zero interruption of data transmission may be implemented.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Xizeng DAI, Hong WANG, Jian ZHANG, Xingqing CHENG
  • Publication number: 20210289463
    Abstract: An uplink signal transmission method includes: sending, by a terminal device, an uplink signal to a network device in response to determining that a first variation meets a timing advance (TA) update condition, where the first variation indicates a quality change value of a downlink signal received by the terminal device; receiving, by the terminal device, first information from the network device; and in response to determining that the first information includes TA information, adjusting, by the terminal device, an uplink transmission time based on the TA information.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 16, 2021
    Inventors: Wenping BI, Yue ZHAO, Xinqian XIE, Hong WANG, Zheng YU, Xingqing CHENG
  • Patent number: 11122485
    Abstract: A method for mobility management, an apparatus and a User Equipment (UE) are disclosed. The method includes: obtaining cell set information sent by a cell set in an access network; selecting a target cell set to which a UE may hand over according to the cell set information, and sending information about selection of the target cell set to the target cell set; and receiving information about at least one target cell decided by the target cell set, and providing the information about the target cell to the UE for handover. The method for mobility management between cell sets simplifies mobility management in multi-cell communication and improves performance of the communication system.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: September 14, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yinghui Yu, Weiwei Song, Yajun Zhao, Xingqing Cheng
  • Patent number: 11095481
    Abstract: Embodiments of the present invention relate to a channel estimation method, a base station, user equipment UE, and a system. The method includes: setting up, by a base station, a connection to user equipment UE; and sending, to the UE, notification information indicating that the UE is in a radio remote scenario, where the notification information is used to instruct the UE to perform channel estimation by using a channel estimation algorithm applicable to the radio remote scenario, and the channel estimation algorithm is used to perform channel estimation on a signal that is obtained after downlink signals from multiple radio remote units RRUs are superposed. The UE can perform channel estimation by using the appropriate channel estimation algorithm, to effectively improve accuracy of the channel estimation, thereby effectively improving a downlink data throughput of the UE.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: August 17, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qiming Li, Jing Han, Anjian Li, Xizeng Dai, Yue Zhao, Xingqing Cheng