Patents by Inventor Anjian Li

Anjian 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: 10404516
    Abstract: A data demodulation method, apparatus, and system are presented. The method includes obtaining notification information indicating that user equipment (UE) is in a high-speed moving state; performing time-frequency synchronization processing on first downlink data according to the notification information to obtain second downlink data; and performing demodulation processing on the second downlink data to obtain third downlink data, where in the demodulation processing, inter-transmission time intervals (TTIs) filtering for a channel estimation is not performed, or a filtering coefficient as a weight of a current TTI for a channel estimation is greater than a filtering coefficient as a weight of a TTI that is at the time when the UE is in the non-high-speed moving state for a channel estimation. The demodulation method is applicable to a high-speed scenario for improving a downlink data throughput of the UE.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 3, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qiming Li, Jiadi Liu, Jing Han, Anjian Li
  • Patent number: 10401468
    Abstract: Embodiments of the present disclosure provide a single positioning controller and a positioning control system. The single positioning controller includes: a sending module, configured to send a first positioning measurement request to a first access network node or a first terminal device; a receiving module, configured to receive at least one first positioning measurement result sent by the first access network node or the first terminal device; and a processing module, configured to perform fusion calculation on the at least one first positioning measurement result to obtain location information of the first terminal device.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 3, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jie Cui, Jing Han, Anjian Li, Hong Li
  • Patent number: 10397893
    Abstract: A method is provided. The method includes allocating a specified time period for receiving an uplink reference signal to each node, receiving an uplink reference signal that is received in the specified time period and forwarded by each node, obtaining power or a signal-to-noise ratio of the uplink reference signal forwarded by each node, selecting a time period corresponding to an uplink reference signal with maximum power or a maximum signal-to-noise ratio as a positioning time period, obtaining a corresponding positioning node according to the positioning time period and the specified time period for receiving an uplink reference signal, and determining a location of the mobile terminal according to a location of the positioning node.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: August 27, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jie Cui, Anjian Li, Xizeng Dai
  • Patent number: 10390325
    Abstract: Embodiments of the present disclosure relate to the field of communications technologies, and disclose a positioning method and device, so as to resolve a prior-art problem of relatively low positioning precision caused by a relatively long message transmission delay. A specific solution is as follows: A positioning controller: sends, to a user device, a message that carries positioning auxiliary information including an identifier of a first base station and an identifier of at least one second base station; receives a message that carries a positioning measurement result; obtains location information of the first base station and location information of the at least one second base station; and determines location information of the user device according to the positioning measurement result, the location information of the first base station, and the location information of the at least one second base station.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 20, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Anjian Li, Jie Cui, Jing Han, Hong Li
  • Patent number: 10334393
    Abstract: Embodiments of the present disclosure provide a floor positioning method and system, and a device, and relate to the communications field. The method includes: receiving a reference signal sent by at least one access point in an indoor environment in which UE is located; determining measurement information based on a polarization direction of the at least one received reference signal, where the measurement information includes at least one access point identifier and a proportion-related value of a vertical polarization direction relative to the polarization direction of the reference signal corresponding to the at least one access point identifier; sending the measurement information to a positioning server; and receiving location information of the UE sent by the positioning server, where the location information of the UE includes a floor location of the UE, and the floor location of the UE is determined based on the measurement information.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 25, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jiantao Xue, Bin Su, Jie Cui, Anjian Li, Yijie Li
  • Patent number: 10306585
    Abstract: The present invention provides a signal determining method and an apparatus, so as to resolve a problem, in a conventional positioning method, that a signal receiving device cannot accurately determine whether a received signal is an aggregated reference signal, and consequently, positioning fails due to a relatively large error of location information obtained by means of positioning. The method is as follows: A signal receiving device may estimate, according to a TAE between at least two subcarriers used by a signal sending device to transmit a reference signal and a reference signal sent by the signal sending device on each subcarrier, an aggregated reference signal that is sent by the signal sending device and that is obtained after carrier aggregation. After receiving a signal, the signal receiving device determines whether the signal is an aggregated reference signal sent by the signal sending device.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: May 28, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jiantao Xue, Yijie Li, Jie Cui, Anjian Li
  • Patent number: 10306408
    Abstract: Embodiments of the present invention provide a positioning method, a positioning server, and a positioning system. The positioning method includes: separately obtaining, by a positioning server, location coordinates of M positioning nodes; separately obtaining, by the positioning server, a reference signal time difference RSTD between an ith positioning node and an (i+1)th positioning node in the M positioning nodes and a jth mobile terminal in two mobile terminals; determining, by the positioning server, a relative RSTD according to the RSTD; and determining, by the positioning server, location coordinates of the two mobile terminals according to the relative RSTD and the location coordinates of the M positioning nodes.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 28, 2019
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Wei Zhu, Jie Cui, Anjian Li, Jiantao Xue, Hong Li
  • Patent number: 10299240
    Abstract: The present invention provides a positioning parameter coordination apparatus, system, and method. A single positioning controller (SPC) receives a positioning request message sent by a positioning request device, obtains capability information of a user equipment (UE) according to an identifier of the UE, and determines at least one first access network device to complete positioning configuration. The SPC positions the UE according to a positioning parameter of the UE.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 21, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jie Cui, Anjian Li, Jing Han, Hong Li
  • Patent number: 10281560
    Abstract: Embodiments of the present disclosure provide a positioning method based on a time difference of arrival, user equipment, and a network device. The method includes: calculating, by user equipment, a first time difference of arrival RSTD1 based on positioning signals sent by a first base station and a second base station at a same moment; calculating a second time difference of arrival RSTD2 based on known location information of the user equipment; calculating a time alignment error TAE based on the RSTD1 and the RSTD2; and performing, based on the TAE, positioning based on a time difference of arrival TDOA. According to this method, the TAE caused by the base stations is subtracted during positioning calculation. In other words, the time alignment error caused by the base stations is eliminated. Therefore, accuracy of TDOA-based positioning can be ensured.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: May 7, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiantao Xue, Wei Zhu, Bin Su, Jie Cui, Anjian Li, Hong Li
  • Publication number: 20190132816
    Abstract: The present disclosure relates to the mobile communications field. In a positioning base station determining method, a positioning server receives a positioning request message from a terminal device; the positioning server obtains information about a candidate base station from a serving base station of the terminal device according to the positioning request message, where the information about a candidate base station indicates at least one base station; and the positioning server determines a positioning base station set according to the information about a candidate base station, where the positioning base station set includes a positioning base station configured to position the terminal device, and the positioning base station includes one or more of the at least one base station and/or the serving base station.
    Type: Application
    Filed: December 20, 2018
    Publication date: May 2, 2019
    Inventors: Jiantao Xue, Houping Ren, Anjian Li
  • Patent number: 10251135
    Abstract: Embodiments of the present invention provide a method for controlling power of a carrier signal, user equipment, and a base station. The method includes: receiving, by user equipment, power control parameters, sent by at least one base station, of at least two carrier signals, where the at least two carrier signals are signals sent on at least two aggregation carriers; determining, by the user equipment according to the power control parameters, channel gain reference quantities corresponding to the at least two carrier signals, where the channel gain reference quantities are used to represent a magnitude of a channel gain; and controlling, by the user equipment, power of the at least two carrier signals according to the channel gain reference quantities. According to the technical solutions of the present invention, a power resource of user equipment can be effectively utilized, and network performance can be improved.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: April 2, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tong Wu, Hong Li, Anjian Li, Jie Cui
  • Patent number: 10241188
    Abstract: Embodiments of the present invention disclose a method which including: receiving a locating reference signal sent by a locating transmitter; performing time domain related processing on the locating reference signal and a synchronization reference signal sequence to obtain a related spectrum value of a multipath signal component corresponding to a delay value; detecting a channel parameter used when the locating reference signal is received, and generating, according to the channel parameter and a function that progressively decreases with the delay value, a related spectrum threshold that progressively decreases with the delay value; and traversing the delay value in ascending order of the delay value, searching for a first traversed delay value whose related spectrum value of a multipath signal component corresponding to the delay value is greater than a related spectrum threshold corresponding to the delay value, and using the found delay value as TOA for outputting.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 26, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yijie Li, Jiantao Xue, Jie Cui, Anjian Li
  • Publication number: 20190074946
    Abstract: Embodiments of the present disclosure provide a resource allocation method, a network-side device, and a terminal device. The resource allocation method includes: allocating, by a network-side device, a first resource, where the first resource is used to carry a positioning reference signal, and the positioning reference signal is used to perform positioning on a terminal device; determining, by the network-side device, a first allocation mode of the first resource, where the first allocation mode is configuring the positioning reference signal in all unoccupied locations of the first resource; and sending, by the network-side device, the positioning reference signal on the first resource in the first allocation mode, or receiving, by the network-side device, the positioning reference signal on the first resource in the first allocation mode.
    Type: Application
    Filed: November 3, 2018
    Publication date: March 7, 2019
    Inventors: Jiantao Xue, Ye Si, Anjian Li, Yuan Gao
  • Patent number: 10225776
    Abstract: Embodiments provide a method for configuring a serving cell in dual connectivity, user equipment, and a base station. According to the method, a master eNodeB sends RRC connection reconfiguration signaling to the user equipment, where the RRC connection reconfiguration signaling carries indication information used to indicate whether an SFN of the master eNodeB and an SFN of the secondary eNodeB have same parity, or carries an SFN of the secondary eNodeB. The UE executes primary secondary cell pSCell configuration at the secondary eNodeB according to the RRC connection reconfiguration signaling. The UE may determine parity of the SFN of the secondary eNodeB according to the received indication information or the SFN of the secondary eNodeB, and then the UE performs random access to the SeNB.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: March 5, 2019
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Jing Han, Jie Cui, Anjian Li
  • Patent number: 10212688
    Abstract: Embodiments of the present invention provide a positioning method, a positioning server, a terminal and a base station. The positioning method includes: notifying a terminal of difference threshold information; receiving cell subset information that is determined by the terminal according to the difference threshold information, where the cell subset information is used to indicate a cell pair whose reference signal measured value exceeds the difference threshold, or the cell subset information is used to indicate a cell pair whose reference signal measured value does not exceed the difference threshold; determining a configuration of a PRS according to the cell subset information, and notifying the terminal of the configuration of the PRS; and receiving an RSTD that is obtained by the terminal through measurement according to the configuration of the PRS, and determining a location of the terminal according to the RSTD.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: February 19, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Jie Cui, Anjian Li, Jing Han, Yuan He, Tong Wu
  • Patent number: 10211966
    Abstract: When a terminal switches from a downlink subframe to an adjacent uplink subframe, generating a first guard period, where that the terminal does not process any signal in the first guard period is defined, that is, the terminal neither receives downlink data nor sends an uplink signal in the first guard period, and therefore uncertainty of a terminal behavior during a downlink-to-uplink switching process of the terminal is avoided, and successful sending of the uplink subframe can be ensured; and when the terminal switches from an uplink subframe to a downlink subframe, generating a second guard period, where the second guard period overlaps the uplink subframe or the downlink subframe, and that the terminal does not process any signal in the second guard period is defined, and therefore uncertainty of a terminal behavior during an uplink-to-downlink switching process of the terminal is avoided.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 19, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jie Cui, Anjian Li, Jinhuan Xia, Xiaodong Yang
  • Patent number: 10206133
    Abstract: The present disclosure provides an RRM measurement method and apparatus in a TDD system, so as to resolve a current problem that in a process of an inter-frequency measurement or an inter-RAT measurement in a TDD system, UE cannot perform an RRM measurement on a cell whose TDD uplink-downlink configuration identifier is 0. In embodiments of the present disclosure, UE performs an RRM measurement on a cell whose TDD uplink-downlink configuration identifier is 0 by using a corresponding RRM measurement method according to measurement indication information that is carried in an RRM measurement message delivered by a network device. By means of the technical solutions in the present disclosure, UE can perform an RRM measurement on a cell whose TDD uplink-downlink configuration identifier is 0 by using an RRM measurement method.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 12, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tong Wu, Anjian Li
  • Publication number: 20180368096
    Abstract: The present invention discloses a positioning apparatus and method. In embodiments of the present invention, a sending module sends auxiliary data information to a terminal, where the auxiliary data information is information required by the terminal to perform measurement on positioning nodes, where the auxiliary data information includes positioning node index numbers of the positioning nodes; a receiving module receives a positioning measurement result sent by the terminal, and provides the positioning measurement result to a positioning module, where the positioning measurement result includes a positioning measurement result corresponding to each positioning node index number, or a positioning measurement result that a reference positioning node index number separately corresponds to other positioning node index numbers; and the positioning module determines a location of the terminal by using the positioning measurement result.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 20, 2018
    Inventors: Jie Cui, Anjian Li
  • Patent number: 10123269
    Abstract: Embodiments of the present invention disclose a radio link monitoring method and UE. The radio link monitoring method provided in the embodiments of the present invention includes: monitoring, by user equipment UE, downlink quality of a serving cell on a physical layer by using an extended link monitoring period, where the extended link monitoring period is greater than an original link monitoring period; and sending, by the UE, an in-synchronization indication message or an out-of-synchronization indication message to an upper layer of the UE when a monitoring result satisfies a preset report condition. According to the method in the embodiments of the present invention, power consumption and device costs can be reduced.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 6, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hong Li, Tong Wu, Anjian Li, Jing Han, Jie Cui
  • Publication number: 20180306896
    Abstract: Embodiments of the present invention provide a terminal device and a positioning system, and relate to the field of communications technologies. The terminal device is configured to: obtain identifiers of at least two antenna elements and attribute information of a reference signal corresponding to each of the at least two antenna elements; receive at least two reference signals based on the attribute information, where the at least two reference signals are sent by corresponding antenna elements of the at least two antenna elements, respectively; obtain positioning information; and send, to the network device, the positioning information and identification information of antenna elements corresponding to the positioning information. Positioning signals obtained by different antenna elements are different, so that the terminal device can identify which antenna element a received positioning signal comes from.
    Type: Application
    Filed: June 28, 2018
    Publication date: October 25, 2018
    Inventors: Jiantao XUE, Anjian LI, Bin SU