Patents by Inventor Anxin Li

Anxin 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).

  • Publication number: 20200367264
    Abstract: This disclosure provides a terminal and a base station. The base station includes: a processing unit configured to determine scheduling information for a first terminal according to historical information of the first terminal; and a transmitting unit configured to transmit the determined scheduling information to the first terminal.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Lan CHEN, Jing WANG, Xin WANG, Anxin LI, Xiaolin HOU, Liling CAI
  • Publication number: 20200367051
    Abstract: The present disclosure provides a terminal and a base station in a wireless communication system. The terminal includes: a processing unit for obtaining terminal network capability information about at least one of a computing capability, a storage capability, and a support capability for neural network of the terminal; and a transmitting unit for transmitting the terminal network capability information to a base station.
    Type: Application
    Filed: January 29, 2020
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Jing WANG, Anxin LI, Lan CHEN, Xin WANG, Xiaolin HOU
  • Publication number: 20200366537
    Abstract: The present disclosure provides a terminal and a base station in a wireless communication system. The terminal may include a control unit configured to input a downlink channel to a neural network of the terminal; and the control unit further configured to control the neural network of the terminal to process the input and output feedback information.
    Type: Application
    Filed: January 8, 2020
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Xin WANG, Jing WANG, Xiaolin HOU, Lan CHEN, Anxin LI, Takahiro ASAI
  • Publication number: 20200322923
    Abstract: Provided is user equipment of a radio communication system that supports D2D communication, the user equipment including a selector that selects a plurality of control information resources for repeatedly transmitting control information from a control information resource pool and that selects a plurality of data resources for repeatedly transmitting data from a data transmission resource pool; and a transmitter that repeatedly transmits the control information including information that specifies the data resources using the control information resources and repeatedly transmits the data using the data resources, wherein the selector selects the control information resources and the data resources so that a control information resource for transmitting the control information for a first time among the control information resources and a data resource for transmitting the data for a first time among the data resources are in a same subframe.
    Type: Application
    Filed: March 16, 2017
    Publication date: October 8, 2020
    Applicants: NTT DOCOMO, INC., NTT DOCOMO, INC.
    Inventors: Shimpei Yasukawa, Satoshi Nagata, Qun Zhao, Liu Liu, Anxin Li, Huiling Jiang
  • Patent number: 10764856
    Abstract: The present application provides an uplink data transmission method and a user terminal (UE) for executing the method. The method in the present application comprises: A, generating a first random number; B, determining, according to the generated first random number, whether to initiate a random access process; if the random access process is initiated, obtaining a timing advance (TA) value from a base station by means of the random access process; and if the random access process is not initiated, listening for a TA message broadcast by another UE and obtaining a TA value from the TA message; C, transmitting uplink data according to the obtained TA value; D, if the uplink data is successfully transmitted, continuing to perform E, and if the uplink data is unsuccessfully transmitted, returning to A; and E, generating a TA message according to the obtained TA value, and broadcasting the generated TA message.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 1, 2020
    Assignee: NTT DoCoMo, Inc.
    Inventors: Neng Ye, Xiangming Li, Anxin Li, Xiaohang Chen, Qun Zhao, Huiling Jiang
  • Patent number: 10728881
    Abstract: There is provided user equipment of a radio communication system that supports D2D communication. The user equipment includes a storage that stores a Gap pattern indicating a Gap period repeatedly configured in a radio resource for UL; and a transmitter that transmits a signal of D2D communication in a Gap period indicated by the Gap pattern stored in the storage.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 28, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Shimpei Yasukawa, Satoshi Nagata, Qun Zhao, Liu Liu, Anxin Li, Huiling Jiang
  • Publication number: 20200196245
    Abstract: Provided are a method for controlling a transmission power, a mobile station and a base station. The method for controlling the transmit power can be applied to a mobile station, and the method includes: acquiring a power control pattern, which is information related to a scheme of controlling the transmission power; determining a reference power control parameter for the mobile station according to the power control pattern; and determining the transmission power of the mobile station based on the reference power control parameter. The method for controlling the transmission power according to the embodiments of the present disclosure enables the user equipment to transmit signals to the base station at a proper transmission power, and further enables the base station side to distinguish different user equipments according to differences of received powers of a plurality of users that adopt Non-orthogonal Multiple Access.
    Type: Application
    Filed: August 16, 2017
    Publication date: June 18, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Xiaohang CHEN, Anxin LI, Qin MU, Liu LIU, Huiling JIANG, Satoshi NAGATA
  • Publication number: 20200196297
    Abstract: Provided are a resource determination method, a base station and a mobile station. A resource determination method performed by the base station according to embodiments of the present invention includes: determining a resource configuration used for uplink transmission for each mobile station group in a plurality of mobile station groups corresponding to the base station; determining a resource offset set used for the plurality of mobile station groups, wherein the resource offset set includes a plurality of resource candidate offsets such that a mobile station connected to the base station determines uplink transmission resources for the mobile station according to the resource configuration of the mobile station group to which the mobile station belongs and resource candidate offsets in the resource offset set.
    Type: Application
    Filed: August 18, 2017
    Publication date: June 18, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Xiaohang CHEN, Anxin LI, Qin MU, Liu LIU, Huiling JIANG, Satoshi NAGATA
  • Publication number: 20200067659
    Abstract: Embodiments of the present invention provide a transmission method used in uplink hybrid automatic repeat request (HARQ) transmission, a base station, and a mobile station. The transmission method used in uplink hybrid automatic repeat request (HARQ) transmission, which is applied to a base station, includes: receiving uplink transmission information sent from one or more terminal devices (UEs), the uplink transmission information sent by each UE comprising identifier information and data information of the UE; detecting the identifier information of the one or more UEs according to the uplink transmission information; and when identifier information that is not properly detected according to the uplink transmission information exists, sending a common failure response signal to multiple UEs connected to the base station.
    Type: Application
    Filed: January 8, 2018
    Publication date: February 27, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Xiaohang CHEN, Anxin LI, Qun ZHAO, Huiling JIANG
  • Patent number: 10405323
    Abstract: The present disclosure provides a method, User Equipment (UE) and base station for adjusting a Modulation and Coding Scheme (MCS). The method comprises: receiving, by a user equipment (UE), a first downlink data frame sent by a base station at a first moment, and estimating, by the UE, a first Signal to Interference and Noise Ratio (SINR) and a first Channel Quality Indicator (CQI) according to the first downlink data frame; estimating a second SINR and a second CQI according to a received second downlink data frame, wherein the second downlink data frame is sent by the base station at a second moment later than the first moment; calculating, by the UE, a MCS variation according to at least one of the first CQI, the second CQI, the first SINR or the second SINR; and feeding back, by the UE, the MCS variation to the base station.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: September 3, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yang Lan, Anxin Li, Huiling Jiang
  • Publication number: 20190230630
    Abstract: Disclosed are a method for notifying a repetition pattern of uplink data, a method for determining a repetition pattern of uplink data, and a corresponding user equipment and base station. The method for notifying a repetition pattern of uplink data includes: selecting one of a plurality of repetition patterns as a repetition pattern of uplink data; and explicitly or implicitly notifying a base station of the selected repetition pattern by the uplink data. The method for determining a repetition pattern of uplink data includes: receiving uplink data; and determining a repetition pattern of the uplink data according to information included in the uplink data or a transmitting manner of the uplink data.
    Type: Application
    Filed: August 17, 2017
    Publication date: July 25, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Qin MU, Liu LIU, Xiaohang CHEN, Anxin LI, Huiling JIANG, Satoshi NAGATA
  • Publication number: 20190215792
    Abstract: The present application provides an uplink data transmission method and a user terminal (UE) for executing the method. The method in the present application comprises: A, generating a first random number; B, determining, according to the generated first random number, whether to initiate a random access process; if the random access process is initiated, obtaining a timing advance (TA) value from a base station by means of the random access process; and if the random access process is not initiated, listening for a TA message broadcast by another UE and obtaining a TA value from the TA message; C, transmitting uplink data according to the obtained TA value; D, if the uplink data is successfully transmitted, continuing to perform E, and if the uplink data is unsuccessfully transmitted, returning to A; and E, generating a TA message according to the obtained TA value, and broadcasting the generated TA message.
    Type: Application
    Filed: July 7, 2017
    Publication date: July 11, 2019
    Applicant: NTT DoCoMo, Inc.
    Inventors: Neng YE, Xiangming LI, Anxin LI, Xiaohang CHEN, Qun ZHAO, Huiling JIANG
  • Publication number: 20190208504
    Abstract: A user equipment including: a selection unit that selects, based on a result of sensing performed in a first time window and on a transmission interval of a signal, one or more resource candidates in a second time window after the first time window; and a transmission unit that selects a resource for transmitting a signal from the selected one or more resource candidates, and transmits the signal.
    Type: Application
    Filed: August 10, 2017
    Publication date: July 4, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinpei Yasukawa, Satoshi Nagata, Qun Zhao, Jing Wang, Huan Wang, Liu Liu, Anxin Li, Huiling Jiang
  • Patent number: 10313987
    Abstract: The present disclosure provides a method for controlling a power, comprising: determining an average basic transmission power of all User Equipments (UEs) in a cell in each first resource; for each first resource, determining a UE group scheduled in the first resource and a first transmission power allocation factor corresponding to the UE group according to the average basic transmission power. The present disclosure also provides an apparatus for controlling a power. According to the present disclosure, a base station determines a UE group scheduled in each subband and a transmission power for each UE in the UE group.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: June 4, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Anxin Li, Huiling Jiang
  • Publication number: 20190159224
    Abstract: There is provided user equipment of a radio communication system that supports D2D communication. The user equipment includes a storage that stores a Gap pattern indicating a Gap period repeatedly configured in a radio resource for UL; and a transmitter that transmits a signal of D2D communication in a Gap period indicated by the Gap pattern stored in the storage.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 23, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Shimpei Yasukawa, Satoshi Nagata, Qun Zhao, Liu Liu, Anxin Li, Huiling Jiang
  • Patent number: 10298308
    Abstract: Embodiments of present invention provide a method for optimizing the rank of channel matrix, a wireless base and a mobile station. The method for optimizing the rank of channel matrix according to an embodiment of the present invention is applied to a wireless base to which multiple mobile stations are connected. The method includes: obtaining the historical state data of the multiple mobile stations; determining the optimal rank of channel matrix of a first mobile station of the multiple mobile stations according to the obtained historical state data of the multiple mobile stations; and transmitting to the first mobile station the optimal rank indicator indicating the optimal rank so as to cause the first mobile station to set its rank of channel matrix to be the optimal rank indicated by the optimal rank indicator.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: May 21, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Xiaohang Chen, Anxin Li, Huiling Jiang
  • Patent number: 10225763
    Abstract: The present disclosure provides a method for re-transmitting data, wherein the method at a User Equipment (UE) side comprises: receiving, by a UE, a re-transmitted data packet from a base station, determining whether to perform data combination according to a Signal to Interference-Noise Ratio (SINR) of a first-transmitted data packet and a SINR of the re-transmitted data packet; when it is determined to perform data combination, performing, by the UE, data combination for the re-transmitted data packet according to information buffered by the UE and detecting the re-transmitted data packet according to a result of performed data combination; or when it is determined not to perform data combination, detecting, by the UE, the re-transmitted data packet. The present disclosure also provides a method for re-transmitting data at a base station side and a UE for implementing the above method.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: March 5, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Anxin Li, Huiling Jiang
  • Patent number: 10211894
    Abstract: Disclosed are a downlink precoding method and a base station. The method includes: configuring a first precoding mode for a first cell, wherein the first precoding mode includes information of a precoding matrix configured for each candidate user of the first cell on each resource; selecting a scheduling user on each resource from candidate users according to the first precoding mode; and performing precoding to a channel estimation signal and downlink data of the scheduling user according to a precoding matrix of the scheduling user, and transmitting precoded channel estimation signal and precoded downlink data to the scheduling user. Such method and base station of the present disclosure can reduce the feedback overhead of the user, effectively improve the accuracy of channel quality indicator (CQI) estimation, and improve the system throughput and user throughput.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 19, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yang Lan, Anxin Li, Huiling Jiang
  • Patent number: 10212709
    Abstract: Embodiments of the present disclosure provide a radio base station, a mobile station and a method for determining a transmitting power. A radio base station, according to an embodiment of the present disclosure, is connected with a plurality of mobile stations, wherein a first mobile station in the plurality of mobile stations can form at least one mobile station pair with other mobile stations. The radio base station comprises: a processing unit, configured to determine an initial value of a power factor of each mobile station pair according to state data of respective mobile stations in the mobile station pair, and determine an adjustment value of the power factor for the first mobile station according to state data of the first mobile station; and a transmitting unit, configured to transmit the initial value of the at least one mobile station pair and the adjustment value to the first mobile station.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: February 19, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Xiaohang Chen, Anxin Li, Huiling Jiang
  • Patent number: 10205621
    Abstract: A transmitting apparatus and a transmitting method are provided. The transmitting apparatus comprises: an encoder configured to encode data for a plurality of user equipments into corresponding encoded signals, respectively; a modulator configured to perform a joint modulation on the encoded signals for the plurality of user equipments to generate modulated signals, wherein the modulator performs the joint modulation by mapping bits of the encoded signals for the plurality of user equipments to a symbol corresponding to each constellation point of a constellation map of the modulated signals so that respective constellation points satisfy a Gray mapping rule; a transmitter configured to transmit the modulated signals.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 12, 2019
    Assignee: NTT DoCoMo, Inc.
    Inventors: Chunlin Yan, Anass Benjebbour, Yang Lan, Anxin Li, Huiling Jiang