Patents by Inventor Yanling Lu

Yanling Lu 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: 10201027
    Abstract: An apparatus for reporting connection setup request, includes a request transmitting unit configured to transmit a connection setup request for device-to-device communication to a network side when it is determined according to pre-obtained configuration information that the connection setup request for device-to-device communication can be transmitted to the network side.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 5, 2019
    Assignee: FUJITSU CONNECTED TECHNOLOGIES LIMITED
    Inventors: Tao Qiu, Lianhai Wu, Ningjuan Chang, Haibo Xu, Weiwei Wang, Yanling Lu
  • Patent number: 10097330
    Abstract: Embodiments of the present disclosure provide a method and apparatus for configuring channel quality indicator (CQI) and a method and apparatus for configuring modulation and coding scheme. The method for configuring CQI includes: configuring UE with a CQI index table by an eNB via CQI index table indication information, so that the UE determines the configured CQI index table according to the indication information, and calculates a CQI index according to calculated precoding matrix indicator (PMI) and rank indication (RI) by using the configured CQI index table. With the embodiments of the present disclosure, the eNB may configure different UEs with different ‘4-bit CQI tables’ and/or ‘modulation and TBS index tables’ while keeping the CQI index and the IMCS bit number unchanged. Therefore, not only the CQI index and the IMCS bit number need not to be increased, but also normal configuration of the LTE system may be ensured.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: October 9, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Lei Zhang, Yi Wang, Yanling Lu, Hua Zhou
  • Patent number: 9949312
    Abstract: A method and apparatus for updating a measurement identity and a system. The method includes: checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and removing the measurement identity from the measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency at which a cell belonging to a secondary cell group of the terminal equipment is operating and a measurement object related to the measurement event no longer satisfies a requirement of the measurement event or a cell for comparing in the measurement event no longer exists.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 17, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Yanling Lu, Haibo Xu
  • Publication number: 20170303266
    Abstract: An MAC control element (CE) uplink configuration method and device, and communications system, the method includes: when an MAC CE is activated, determining, by user equipment (UE), whether an uplink grant of a serving cell in an authorization frequency band exists; and when the uplink grant of the serving cell in the authorization frequency band exists and can accommodate the MAC CE, allocating, by the UE and for the MAC CE, the uplink grant of the serving cell in the authorization frequency band. An embodiment of the present disclosure improves reliability for transmitting the MAC CE, in an LAA system, and reduces unnecessary latency or failure.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 19, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Yanling LU, Lianhai WU, Haibo XU
  • Publication number: 20170279586
    Abstract: A method for configuring a User Equipment (UE) with a Channel Quality Index (CQI) table, the method includes: calculating a Precoding Matrix Indicator (PMI) and Rank Indication (RI) according to a channel estimated result; determining a configured CQI index table according to received CQI index table indication information transmitted by a base station, the base station configuring the CQI index table by selecting the CQI index table from at least two CQI index tables; and calculating a CQI index according to the calculated PMI and the RI using the configured CQI index table.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 28, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Lei ZHANG, Yi WANG, Yanling LU, Hua ZHOU
  • Patent number: 9693331
    Abstract: Embodiments of the present application provide a method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration. Wherein, the method includes: reconfiguring a TAG belonging to a secondary serving cell by terminal; and terminating, by the terminal, transmission of a periodic channel sounding reference signal Type-0 SRS in the secondary serving cell, and/or terminating, by the terminal, uplink non-adaptive retransmission in the secondary serving cell, after the terminal completes the reconfiguration of the TAG of the secondary serving cell and if a current TAG is a new one. With the embodiments of the present application, a problem of mutual interference with other terminal resulted from transmission of an uplink signal by the terminal in the secondary serving cell according to a wrong TA value may be avoided.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 27, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu
  • Patent number: 9686752
    Abstract: A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: June 20, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu, Weiwei Wang
  • Publication number: 20170134999
    Abstract: Embodiments of the present disclosure provide a method and apparatus for allocating D2D resource in a handover procedure and a communication system. The method for allocating D2D resource in a handover procedure includes: a handover request containing handover preparation information is transmitted by a source base station to a target base station; the handover preparation information comprises auxiliary information for assisting the target base station in D2D resource configuration. Through the embodiments of the present disclosure, in a scenario where the user equipment performs D2D discovery or D2D communication, the target base station may accurately allocate suitable D2D resources even though a handover occurs.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Yanling LU, Hua ZHOU
  • Publication number: 20170070924
    Abstract: An apparatus and method to select a resource for performing device to device (D2D) communication from a resource pool configured in a second mode by a first eNB.
    Type: Application
    Filed: November 7, 2016
    Publication date: March 9, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Ningjuan CHANG, Yanling LU
  • Publication number: 20170013485
    Abstract: Embodiments of the present disclosure provide a parameter measuring apparatus, a base station and communication system. The parameter measuring apparatus includes: a measuring unit configured to measure a related parameter; where measurement of a split bearer is excluded or not excluded when the related parameter is measured. Corresponding L2 measurement is performed according to a situation of the split bearer, which enables accurate L2 measurement to be performed in a dual-connectivity scenario where there exists a split bearer, thereby providing efficient support to network administration and maintenance.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ningjuan CHANG, Weiwei WANG, Yanling LU, Haibo XU
  • Publication number: 20170013668
    Abstract: The embodiments of the present disclosure provide a bearer management apparatus and method, and a communication system. The method comprises: a user equipment (UE) receives an indication message, sent by a base station, for changing a bearer type of a bearer or releasing the bearer under dual connectivity; and changes the bearer type of the bearer or releases the bearer according to the indication message. Through the embodiments of the present disclosure, the UE configured with dual connectivity can seamlessly convert the bearer.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 12, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ningjuan CHANG, Haibo XU, Yanling LU, Weiwei WANG
  • Patent number: 9538427
    Abstract: The present invention relates to a base station, and a method for determining a mobile state of a mobile terminal and adjusting TTT. A method for determining a mobile state of a mobile terminal, applied in a base station and includes: setting a handover count period and a current handover count value; determining whether the handover count period has elapsed; determining whether the mobile terminal is handed over; transmitting information of the handover count period, the current handover count value and information of a size of a cell where the base station is located to a base station serving as a handover destination cell, in case the handover count period has not elapsed and the mobile terminal is handed over.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 3, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yanling Lu, Haibo Xu, Weiwei Wang
  • Publication number: 20160360491
    Abstract: A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yanling LU, Weiwei WANG
  • Publication number: 20160353512
    Abstract: A method and apparatus for updating a measurement identity and a system. The method includes: checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and removing the measurement identity from the measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency at which a cell belonging to a secondary cell group of the terminal equipment is operating and a measurement object related to the measurement event no longer satisfies a requirement of the measurement event or a cell for comparing in the measurement event no longer exists.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 1, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Yanling LU, Haibo XU
  • Publication number: 20160309438
    Abstract: Embodiments of the present application provide a method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration. Wherein, the method includes: reconfiguring a TAG belonging to a secondary serving cell by terminal; and terminating, by the terminal, transmission of a periodic channel sounding reference signal Type-0 SRS in the secondary serving cell, and/or terminating, by the terminal, uplink non-adaptive retransmission in the secondary serving cell, after the terminal completes the reconfiguration of the TAG of the secondary serving cell and if a current TAG is a new one. With the embodiments of the present application, a problem of mutual interference with other terminal resulted from transmission of an uplink signal by the terminal in the secondary serving cell according to a wrong TA value may be avoided.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yanling LU
  • Publication number: 20160302188
    Abstract: A method, an apparatus and a communication system for configuring channel measurement, in order to efficiently ensure channel conditions of a cell transmitting a PUCCH to which a secondary eNB corresponds in a small cell system, includes: configuring a terminal with a measurement object and reporting configuration; wherein the measurement object indicates a frequency needing to be measured, the reporting configuration indicates a measurement report condition, the measurement report condition being that a measurement result of a neighboring cell is better than a sum of a measurement result of a cell transmitting a PUCCH to which a secondary eNB corresponds (SPCell) and a predefined order value, or a measurement result of a neighboring cell is better than a first threshold value and a measurement result of an SPCell is worse than a second threshold value, and the neighboring cell being a cell at the frequency indicated in the measurement object.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 13, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Yanling LU, Yueqiao XU, Haibo XU
  • Patent number: 9456393
    Abstract: Embodiments of the present invention provide a method and apparatus for determining a starting symbol of a physical downlink shared channel; wherein, a Pico base station transmits information indicating a PDSCH starting symbol of the Pico base station to a Macro base station, the Macro base station transmits the information indicating a PDSCH starting symbol to a terminal, and the terminal determines the PDSCH starting symbol in accordance with the information indicating a PDSCH starting symbol. With the embodiments of the present invention, the terminal within a serving range of the Pico base station resulted from a high offset value will not incorrectly decode a PCFICH due to interference of the Macro base station, thereby making the terminal determine a demarcation symbol between a PDCCH and a PDSCH, further increasing the coverage of the Pico base station, and realizing load balancing of the Macro base station and Pico base station.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yuantao Zhang, Yanling Lu, Weiwei Wang, Ningjuan Chang
  • Patent number: 9456425
    Abstract: A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu, Weiwei Wang
  • Patent number: 9408228
    Abstract: Embodiments of the present application provide a method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration. Wherein, the method includes: reconfiguring a TAG belonging to a secondary serving cell by terminal; and terminating, by the terminal, transmission of a periodic channel sounding reference signal Type-0 SRS in the secondary serving cell, and/or terminating, by the terminal, uplink non-adaptive retransmission in the secondary serving cell, after the terminal completes the reconfiguration of the TAG of the secondary serving cell and if a current TAG is a new one. With the embodiments of the present application, a problem of mutual interference with other terminal resulted from transmission of an uplink signal by the terminal in the secondary serving cell according to a wrong TA value may be avoided.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 2, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu
  • Patent number: 9398589
    Abstract: A method for resource assignment, base station and terminal equipment. The method includes: determining resource block group sizes or numbers of resource block subsets to which a stand-alone carrier and a carrier segment correspond; and assigning a resource to terminal equipment according to the resource block group sizes or the numbers of the resource block subsets. With this method, waste of RBs in the resource assignment type 0 may be avoided on the one hand, and on the other hand, a solution for resource assignment of the resource assignment type 1 is provided.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: July 19, 2016
    Assignee: Fujitsu Limited
    Inventors: Haibo Xu, Yanling Lu, Yuantao Zhang, Yi Wang