Patents by Inventor Junchao Li

Junchao Li 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).

  • Patent number: 10979194
    Abstract: A resource indication method, a user equipment and a network device is disclosed. In an embodiment a method includes receiving, by user equipment, configuration information sent by a network device, wherein the configuration information comprises allocation information of frequency domain resources of a plurality of first system parameters and transmitting, by the user equipment, information corresponding to a physical channel and/or information corresponding to a physical signal on at least one resource element in a time-frequency resource corresponding to a frequency domain resource of at least one of the plurality of first system parameters, wherein the first system parameter comprises a first subcarrier spacing size, a cyclic prefix length, a transmission time interval length, a symbol length, or a symbol quantity.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: April 13, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junchao Li, Ning Wu, Hao Tang, Xinxian Li, Zhongfeng Li
  • Patent number: 10965419
    Abstract: This application provides a data communication method, an apparatus, and a non-transitory computer readable storage medium. In one embodiment, the base station sends a master information block comprising first information for determining a first location in frequency domain, sends a first demodulation reference signal usable for demodulating a first data channel that carries a system information block, wherein a first physical resource block index of the first demodulation reference signal is based on the first location, sends the system information block or radio resource control signaling comprising second information for determining a second location in frequency domain, and sends or receives a second demodulation reference signal usable for demodulating a second data channel other than the first data channel, wherein a second physical resource block index of the second demodulation reference signal is based on the second location.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junchao Li, Hao Tang, Zhenfei Tang
  • Publication number: 20210084653
    Abstract: The application provides a resource configuration method including: determining, by a network device, N downlink virtual carriers or determining N downlink virtual carriers and M uplink virtual carriers, where the N downlink virtual carriers are configured in a same cell, or the N downlink virtual carriers and the M uplink virtual carriers are configured in a same cell, and the cell includes at least one carrier, and the N downlink virtual carriers correspond to a same parameter set, or the N downlink virtual carriers correspond to a same parameter set, and the M uplink virtual carriers correspond to a same parameter set, N>1, and N?M?1; and sending, by the network device, configuration information to a terminal, where the configuration information is used to configure the N downlink virtual carriers or used to configure the N downlink virtual carriers and the M uplink virtual carriers.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Junchao LI, Hao TANG, Zhenfei TANG
  • Patent number: 10939384
    Abstract: A power control method, including receiving indication information, where the indication information indicates a power control parameter specific to a bandwidth part, and sending uplink information on the bandwidth part by using a transmit power, where the transmit power is based on the power control parameter specific to the bandwidth part and is further based on a common power control parameter of a carrier in which the bandwidth part is disposed.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: March 2, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Junchao Li, Yafei Wang, Hao Tang, Zhenfei Tang
  • Patent number: 10932289
    Abstract: Example methods and apparatus for transmitting a signal transmission method and a device are disclosed. One method includes transmitting a signal based on a predefined transmission pattern by a communications device. The transmission pattern defines that a non-first downlink timing boundary in a downlink time domain unit is later than or earlier than a first downlink timing boundary is defined, or that an uplink timing boundary in an uplink time domain unit is earlier than or later than the first downlink timing boundary.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 23, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junchao Li, Chi Zhang, Zhengwei Gong
  • Publication number: 20200404677
    Abstract: This application provides wireless communication methods, apparatuses, and systems. One method comprises: receiving higher layer signaling from a base station, wherein the higher layer signaling indicates a downlink aggregation coefficient S corresponding to S consecutive transmission time units, and a transport block is repeatedly transmitted at each of the S consecutive transmission time units; receiving physical layer signaling from the base station, wherein the physical layer signaling schedules the transport block and comprises first indication information indicating at least a portion of resource of a downlink control region available for transmitting the transport block; and determining a valid time of the first indication information, wherein the valid time is one or more transmission time units in the S consecutive transmission time units.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Meng HUA, Junchao LI, Shurong JIAO
  • Patent number: 10855508
    Abstract: A resource configuration method and an apparatus are provided. The resource configuration method includes: receiving, by user equipment, configuration information sent by a network device, where the configuration information is used to indicate at least one time interval and at least one time-frequency resource unit within the time interval, and the time-frequency resource unit includes a first time-frequency resource subunit and/or a second time-frequency resource subunit; and reconfiguring, by the user equipment, a resource mapping manner and/or a rate matching manner based on the configuration information, so that no downlink receiving or uplink sending is performed by the user equipment on the first time-frequency resource subunit, and adjusting a timing offset of the second time-frequency resource subunit to perform downlink receiving or uplink sending on the second time-frequency resource subunit obtained by adjusting the timing offset.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junchao Li, Chi Zhang, Zhengwei Gong
  • Publication number: 20200366334
    Abstract: Various embodiments provide a frequency hopping processing method and a device. In those embodiments, a symbol used to transmit a demodulation reference signal of a shared channel can be determined by a communications device. A time domain frequency hopping location of the shared channel based on the symbol used to transmit the demodulation reference signal can be determined by the communications device. In this way, frequency hopping processing of a shared channel in an NR network is implemented.
    Type: Application
    Filed: May 17, 2020
    Publication date: November 19, 2020
    Inventors: Junchao Li, Yi Wang, Hao Tang, Zhenfei Tang
  • Publication number: 20200344758
    Abstract: This application provides a resource mapping method and a device. A network device writes n physical resource block groups into an interleaving matrix row by row, where N null values are inserted into intersections between the first row and the last N columns of the interleaving matrix or intersections between the last row and the first N columns of the interleaving matrix, n is a positive integer, and N is a natural number; reads the n physical resource block groups from the interleaving matrix column by column, where the n read physical resource block groups are mapped to n virtual resource block groups; and determines, based on the n physical resource block groups mapped to the n virtual resource block groups, physical resource blocks mapped to virtual resource blocks in the n virtual resource block groups.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Inventors: Junchao Li, Xu Zhang, Yi Wang, Hao Tang, Zhenfei Tang
  • Publication number: 20200296758
    Abstract: An embodiment of this application provides a downlink control information transmission method and an apparatus. The method includes: receiving first downlink control information DCI in search space of a first carrier bandwidth part BWP, where if a frequency domain resource allocation type of the first BWP is a type 0, an Lf-bit frequency domain resource allocation indication in the first DCI is an Lf-bit bitmap, and bits in the Lf-bit bitmap in descending order are respectively corresponding to resource block groups RBG 0 to RBG (Lf?1) in a second BWP; and for one bit in the Lf-bit bitmap, when a value of the bit is t1, an allocated resource includes one RBG corresponding to the bit.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Inventors: Junchao Li, Hao Tang, Zhenfei Tang
  • Publication number: 20200267704
    Abstract: A method includes: communicating, by a base station, first UE specific information of UE with the UE in a UE source operating bandwidth resource; and sending, by the base station, information about a UE target operating bandwidth resource of the UE to the UE in a UE calibration bandwidth resource of the UE, where the UE target operating bandwidth resource is used by the base station to communicate second UE specific information of the UE with the UE, and the UE source operating bandwidth resource is not completely the same as the UE calibration bandwidth resource.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Junchao Li, Hao Tang, Fan Wang, Zhenfei Tang
  • Publication number: 20200267726
    Abstract: A resource determining method is provided. The method includes: determining a time domain position and a resource unit type of a first time domain resource unit based on first configuration information; determining a time domain position of a second time domain resource unit based on the time domain position of the first time domain resource unit, where the time domain position of the second time domain resource unit is at a time domain position which is different from the time domain position of the first time domain resource unit and is within a preset time period; and receiving second configuration information from a network-side device, and determining a resource unit type of the second time domain resource unit based on the second configuration information. Thus, subframe types of various subframes in D-TDD can be determined.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Chi ZHANG, Xiaojun MA, Junchao LI, Zhengwei GONG
  • Publication number: 20200220683
    Abstract: This application provides a data communication method, an apparatus, and a non-transitory computer readable storage medium. In one embodiment, the base station sends a master information block comprising first information for determining a first location in frequency domain, sends a first demodulation reference signal usable for demodulating a first data channel that carries a system information block, wherein a first physical resource block index of the first demodulation reference signal is based on the first location, sends the system information block or radio resource control signaling comprising second information for determining a second location in frequency domain, and sends or receives a second demodulation reference signal usable for demodulating a second data channel other than the first data channel, wherein a second physical resource block index of the second demodulation reference signal is based on the second location.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Inventors: Junchao Li, Hao Tang, Zhenfei Tang
  • Publication number: 20200178315
    Abstract: This application provides a resource configuration method, a terminal, and a network device. The method includes: determining a second frequency domain resource based on a physical random access channel frequency domain resource used by a terminal to send a random access preamble, where the second frequency domain resource is used to transmit at least one of physical signal information or physical channel information. In embodiments of this application, when the network device configures a plurality of uplink frequency domain resources used to send a random access message 3, the terminal may determine a to-be-used uplink frequency domain resource according to the method provided in this application.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Inventors: Junchao Li, Hao Tang, Zhenfei Tang, Xinghua Song
  • Patent number: 10674506
    Abstract: A resource determining method is provided. The method includes: determining a time domain position and a resource unit type of a first time domain resource unit based on first configuration information; determining a time domain position of a second time domain resource unit based on the time domain position of the first time domain resource unit, where the time domain position of the second time domain resource unit is at a time domain position which is different from the time domain position of the first time domain resource unit and is within a preset time period; and receiving second configuration information from a network-side device, and determining a resource unit type of the second time domain resource unit based on the second configuration information. Thus, subframe types of various subframes in D-TDD can be determined.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 2, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chi Zhang, Xiaojun Ma, Junchao Li, Zhengwei Gong
  • Patent number: 10660079
    Abstract: A method includes: communicating, by a base station, first UE specific information of UE with the UE in a UE source operating bandwidth resource; and sending, by the base station, information about a UE target operating bandwidth resource of the UE to the UE in a UE calibration bandwidth resource of the UE, where the UE target operating bandwidth resource is used by the base station to communicate second UE specific information of the UE with the UE, and the UE source operating bandwidth resource is not completely the same as the UE calibration bandwidth resource.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 19, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Junchao Li, Hao Tang, Fan Wang, Zhenfei Tang
  • Publication number: 20200120676
    Abstract: A method, system, and device for resource block (RB) indexing in a user equipment (UE) is provided. In an embodiment, the method includes obtaining, at the UE, a UE-independent frequency reference point. The method also includes determining, by the UE, a UE-independent index of an RB according to the UE-independent frequency reference point.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 16, 2020
    Inventors: Javad Abdoli, Zhenfei Tang, Junchao Li, Hao Tang
  • Publication number: 20200120719
    Abstract: A communications method is provided, to satisfy a requirement of indicating a random access resource dynamically and effectively reduce resource conflicts caused when PRACH resource configuration is performed. The method includes: sending, by a network device, a first message and a second message to user equipment, where the first message is used to indicate a set of candidate time domain resource units of a physical random access channel of the user equipment, the second message carries first indication information, and the first indication information is used to indicate a time domain resource unit format of a first candidate time domain resource unit in the plurality of candidate time domain resource units; and receiving, by the network device from the user equipment based on the time domain resource unit format, a random access preamble in the first candidate time domain resource unit.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Yafei WANG, Junchao LI, Chi ZHANG
  • Publication number: 20200120545
    Abstract: A resource configuration method, an apparatus, and a system are disclosed. The method includes: determining a reserved resource element (RE) in a resource unit, where the reserved RE is included in a reserved resource; and transmitting data on all or some REs other than the reserved resource. The resource unit includes X resource blocks (RBs) in frequency domain and includes Y symbols in time domain, where X and Y are positive integers. According to the resource configuration method provided in the present disclosure, a data conflict between different terminals during data transmission can be reduced, and resource utilization can be improved.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Inventors: Junchao LI, Hao TANG, Zhenfei TANG
  • Publication number: 20200120581
    Abstract: A communication method and a device are provided, to reduce power consumption of a terminal device and reduce system overheads. A communication method can include, at least, determining, by a terminal device, that a plurality of BPs are activated, where the plurality of BPs are in a same carrier, the plurality of BPs include a first BP and a second BP, a first CSS is configured in the first BP, and common DCI is configured in the first CSS. The communication method can further include detecting, by the terminal device, the common DCI only in a second CSS when the second CSS is configured in the second BP, where the common DCI is configured in the second CSS.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Inventors: Junchao LI, Hao TANG, Fan WANG, Zhenfei TANG