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).

  • Publication number: 20170055227
    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: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tong WU, Hong LI, Anjian LI, Jie CUI
  • Publication number: 20170019810
    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: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tong WU, Anjian LI
  • Publication number: 20170006575
    Abstract: Embodiments of the present disclosure provide a positioning method and apparatus. The positioning method includes: sending, by a serving base station, a terminal side measurement request based on a positioning node reference signal to a target terminal according to configuration information of the positioning node reference signal; performing, by the serving base station, a base station side measurement based on the positioning node reference signal, and obtaining base station side measurement information based on the positioning node reference signal; and then sending terminal side measurement information based on the positioning node reference signal and the base station side measurement information based on the positioning node reference signal to a location server, so that the location server calculates location information of the target terminal.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Jie CUI, Anjian LI
  • Publication number: 20170006574
    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: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Jie Cui, Anjian Li
  • Publication number: 20160353295
    Abstract: The present invention relates to the field of mobile communications technologies, and in particular, to an RS SNR reporting and receiving method, a terminal, and a base station, where the method comprises: sending, by the terminal, a user capability message to a serving base station, where the user capability message carries capability information of measuring and reporting an RS SNR by the terminal; and sending, by the serving base station, a measurement result reporting instruction message to the terminal based on the user capability message, and then reporting, to the serving base station, an RS SNR obtained by means of measurement.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 1, 2016
    Inventors: Tong Wu, Jie Cui, Hong Li, Anjian Li
  • Publication number: 20160308660
    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: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Jie CUI, Anjian LI, Jinhuan XIA, Xiaodong YANG
  • Publication number: 20160245896
    Abstract: The present invention discloses a method, which mainly includes: calculating location information of a estimated point by using a set algorithm according to location information of an original point; and calculating a wireless eigenvalue of the estimated point according to a wireless eigenvalue of the original point obtained by measuring; when a wireless eigenvalue reported by a terminal is received, positioning a location of the terminal according to the wireless eigenvalue of the original point and the wireless eigenvalue of the estimated point. In this way, in a mathematical model manner, location information and a wireless eigenvalue of an unmeasured raster point are fitted, with no need to increase an additional measurement workload, thereby saving a resource. In addition, a division granularity of raster measurement may be changed according to an actual requirement, thereby improving accuracy of terminal positioning.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Inventors: Jie Cui, Anjian Li, Dengkun Xiao, Yongtong Wu, Qiming Sun
  • Publication number: 20160248533
    Abstract: Embodiments of the present invention disclose a measurement configuration method, an identification and measurement method, a macro base station, and UE. The measurement configuration method provided in the embodiments of the present invention includes: configuring, by a macro base station, a first measurement gap pattern for UE; receiving, by the macro base station, indication information sent by the UE, where the indication information is used to represent that quality of a signal radiated by a small base station and received by the UE is higher than or equal to a preset signal quality threshold; and configuring, by the macro base station, a second measurement gap pattern for the UE, where a measurement gap period in the second measurement gap pattern is less than a measurement gap period in the first measurement gap pattern.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Inventors: Anjian Li, Dengkun Xiao, Hong Li, Chen Zuo
  • Patent number: 9408121
    Abstract: Embodiments of the present invention provide a method and an apparatus for enhancing measurement in a wireless communication system. The method includes: obtaining, according to a measurement period or triggered by an event, a measurement amount, where the measurement amount includes a ratio of a valid signal based on a reference signal to a non-valid signal based on the reference signal measured based on the reference signal; reporting the measurement amount to a base station; or performing cell selection or cell reselection according to the measurement amount.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 2, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Jing Han, Anjian Li, Yuan He, Tong Wu, Jie Cui, Liji Wu
  • Patent number: 9332443
    Abstract: Embodiments of the present invention disclose a method and an apparatus for positioning a user equipment. The method includes receiving positioning measurement information sent by a base station. The positioning configuration information includes a sum of a difference between receiving time and sending time on the UE and a difference between receiving time and sending time on the base station. A round trip time between the intermediate node that sends the CRS and the UE is calculated according to the positing in formation. A position of the UE is determined using position coordinates of the intermediate node that sends the CRS and the round trip time.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 3, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dengkun Xiao, Jie Cui, Anjian Li
  • Publication number: 20160088577
    Abstract: Embodiments of the present invention disclose a timing value adjustment method and apparatus, which relate to the communications field and reduce a probability that power of a terminal exceeds a limit. A specific solution is that: an absolute timing difference of a timing advance group TAG pair is obtained according to an absolute value of a difference between transmit timing values or receive timing values of the two TAGs in the TAG pair, where the TAG pair is formed by any two TAGs in a TAG set; and it is determined that the absolute timing difference of the TAG pair meets a predetermined condition, and first signaling is sent to a network device, where the first signaling includes identifiers of the two TAGs in the TAG pair. The present invention is used in a timing value adjustment process.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 24, 2016
    Inventors: Jie CUI, Anjian LI, Xiaodong YANG, Bo LI, Tong WU, Hong LI
  • Publication number: 20150326366
    Abstract: Embodiments of the present invention disclose a measurement method, user equipment, a base station, and a wireless communications system, where the method includes: determining, according to transmit bandwidth and transmit time of a new carrier type cell-specific reference signal in a cell of the first base station and the transmit bandwidth and the transmit time of the new carrier type cell-specific reference signal in the cell of the second base station, measurement bandwidth and measurement time corresponding to a cell in which user equipment is located; and transmitting measurement configuration information including the measurement bandwidth and the measurement time to the user equipment. The first base station may acquire the transmit bandwidth and the transmit time, and deliver, to UE, measurement configuration information including two pieces of information, namely, measurement bandwidth and measurement time. Therefore, a solution for performing effective measurement in a new carrier type is provided.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 12, 2015
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anjian LI, Dengkun XIAO, Jing HAN
  • Patent number: 9161331
    Abstract: Systems and methods are disclosed to provide positioning enhancement to wireless systems to determine UE positioning using UE measurements. A method implemented by a UE for enabling positioning calculation includes receiving a Signal to Interference plus Noise Ratio (SINR) threshold from a network for filtering positioning measurements and performing a plurality of positioning measurements. The method also includes removing from the positioning measurements each measurement that does not meet the SINR threshold, and sending remaining positioning measurements that meet the SINR threshold to the network. Another method implemented by a network component includes receiving a plurality of positioning measurements with a plurality of corresponding SINRs from a user device and removing from the positioning measurements each measurement with a corresponding SINR that is less than or equal to a pre-determined SINR threshold.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 13, 2015
    Assignee: Futurwei Technologies, Inc.
    Inventors: Jie Cui, Dengkun Xiao, Xiang Chen, Jing Han, Anjian Li
  • Patent number: 9078264
    Abstract: The present invention discloses a method for reporting a power headroom report and a user equipment, which are applied in the field of communications. The method includes triggering reporting of a first power headroom report and determining that a condition of sending the first power headroom report is satisfied. The condition of sending the first power headroom report includes a determination that uplink data channel transmission occurs in a current transmission time interval. The first power headroom report is obtained. The first power headroom report includes a first power headroom value that includes a difference between maximum transmitting power of a carrier and a sum of transmitting power of a control channel of the carrier and transmitting power of a data channel of the carrier.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 7, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Guanglin Han, Anjian Li, Wurong Zhang, Wei Quan, Yi Jiang
  • Patent number: 9072062
    Abstract: A method for controlling uplink power of an LTE system, a base station, and a mobile terminal are disclosed according to the embodiments of the present invention. The method includes: obtaining uplink transmit power of each carrier; sending first notification signaling to a base station if a difference between the obtained uplink transmit power of each carrier exceeds a specific threshold; and sending second notification signaling to the base station if a sum of the obtained uplink transmit power of each carrier exceeds a preset threshold. Thresholds are determined according to network conditions, and uplink power of a carrier is adjusted in a balanced way, a bit error rate is reduced and a case that a low-performance carrier is forced to be interrupted is prevented.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: June 30, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dengkun Xiao, Anjian Li, Yuan He, Jing Han, Wenjie Wang, Chunfeng Yao
  • Patent number: 9042926
    Abstract: The present invention provides a method for obtaining an uplink transmit power control parameter, where the method is applicable to a radio communication system using a CoMP transmission technology and includes: obtaining, by an base station, a downlink path loss of a serving cell serving for a UE and a sum of a each difference between a downlink path loss of each coordinated cell serving for the UE and the downlink path loss of the serving cell; obtaining, by the base station, a downlink path loss of the UE in a coordinated multi-point transmission environment and a transmit power control command of the UE in the coordinated multi-point transmission environment according to the downlink path loss of the serving cell and the sum of differences between downlink path losses. Thereby, the reduction of cell throughput and waste of UE power consumption is avoided.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: May 26, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dengkun Xiao, Yi Ding, Anjian Li
  • Patent number: 8923331
    Abstract: Signaling a Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ) measurement of a wireless channel is achieved by sending an measurement bandwidth (measbandwidth) indicator to a receiver that mandates a specific measurement bandwidth for performing the RSRP or RSRQ measurement. By virtue of receiving the measbandwidth indicator, the receiver is required to perform the RSRP or RSRQ measurement over a portion of the wireless channel that is equal to the measurement bandwidth specified by the measbandwidth indicator.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: December 30, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jing Han, Xiang Chen, Dengkun Xiao, Anjian Li
  • Patent number: 8908640
    Abstract: The present invention relates to the radio communication field and discloses a method, an apparatus, and a system for handover between multi-carrier cells, so that a user equipment (UE) can be handed over to carriers of different cells on multiple target evolved NodeBs (eNBs). The handover method includes: after performing handover request acknowledge, receiving serial numbers (SNs) of data to be transferred and identifier information of target eNBs of other carriers to which the UE is handed over sent by a source eNB; and transferring scheduling information to the target eNBs of other carriers to which the UE is handed over.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: December 9, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Yuan He, Anjian Li, Jing Han, Qing Li, Wenjie Wang
  • Publication number: 20140349582
    Abstract: A positioning method for a user equipment, a data sending method, a device and a user equipment are disclosed. After receiving a positioning service trigger, the method comprises: acquiring a velocity estimate of a UE to be positioned; selecting configuration information of a PRS according to the velocity estimate, setting a PRS sending period of an evolved base station eNB, and sending the PRS sending period to the eNB; sending the configuration information of the PRS to the UE, enabling the UE to receive the PRS sent by the eNB according to the configuration of the PRS and estimate a measurement of RSTD; and receiving the measurement of RSTD sent by the UE, and calculating a geographic position of the UE according to the measurement of RSTD. The embodiments of the disclosure improve effectively the accuracy of positioning the user equipment.
    Type: Application
    Filed: July 23, 2014
    Publication date: November 27, 2014
    Inventors: Dengkun XIAO, Jie CUI, Anjian LI, Jiangbo ZHU
  • Publication number: 20140349704
    Abstract: Embodiments of the present invention disclose a load balance method and relevant apparatuses to implement load balance between base stations in a communications network that includes an LTE base station. The method in an embodiment of the present invention includes: obtaining, by a radio resource management RRM server, load information reported by base stations, where the base stations include a Long Term Evolution LTE base station; determining an overloaded base station in the base stations; determining a target base station according to the load information, where the target base station is a base station to share a load of the overloaded base station; and instructing the overloaded base station and the target base station to perform load balance.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 27, 2014
    Inventors: Dengkun XIAO, Tong WU, Jing HAN, Yuan HE, Jie CUI, Anjian LI