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: 9392557
    Abstract: A user equipment, includes: processing circuitry configured to: judge whether for the current subframe the user equipment has non-adaptive retransmission of uplink data on an activated serving cell configured with an uplink carrier; obtaining, from a physical layer, a configured maximum output power corresponding to the activated serving cell having non-adaptive retransmission of uplink data; and a transmitter to report the configured maximum output power from the physical layer to a base station when, for a current subframe, the user equipment has uplink resources allocated for new transmission for the activated serving cell and the allocated uplink resources may accommodate the power headroom report.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: July 12, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu, Weiwei Wang
  • Publication number: 20160073362
    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: November 19, 2015
    Publication date: March 10, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yanling LU, Weiwei WANG
  • Publication number: 20160073361
    Abstract: A user equipment, includes: processing circuitry configured to: judge whether for the current subframe the user equipment has non-adaptive retransmission of uplink data on an activated serving cell configured with an uplink carrier; obtaining, from a physical layer, a configured maximum output power corresponding to the activated serving cell having non-adaptive retransmission of uplink data; and a transmitter to report the configured maximum output power from the physical layer to a base station when, for a current subframe, the user equipment has uplink resources allocated for new transmission for the activated serving cell and the allocated uplink resources may accommodate the power headroom report.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 10, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yanling LU, Weiwei WANG
  • Publication number: 20160029361
    Abstract: A method for processing a medium access control entity, UE and a communication system. The method includes: establishing a corresponding medium access control entity by UE for a second connectivity, so that there exists dual connectivity between the UE and network side including a first connectivity and the second connectivity; wherein the medium access control entity of the second connectivity at least includes a multiplexing or de-multiplexing module and a logic channel prioritization module. Resources of the UE may be efficiently managed, and waste of resources is reduced based on control optimization.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 28, 2016
    Inventors: Yanling LU, Weiwei WANG
  • Patent number: 9241317
    Abstract: A method for configured maximum output power reporting and user equipment including: judging sequentially by user equipment whether there exists non-adaptive retransmission of uplink data in each of serving cells, or judging whether a base station schedules only channel status information in each of serving cells and does not allocate an uplink grant to transmit data of an uplink shared channel when the user equipment triggers a power headroom report at a current subframe, the base station allocates an uplink grant to the user equipment for transmitting new data in an uplink shared channel, and the uplink grant is capable of containing the power headroom report; obtaining, if the result of judging is positive, by the user equipment, a configured maximum output power of the corresponding serving cell; and reporting the obtained configured maximum output power to the base station.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 19, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yanling Lu, Weiwei Wang
  • Patent number: 9241274
    Abstract: The present invention provides a method, terminal and base station for avoiding device coexistence interference of a wireless communication terminal. The wireless communication terminal includes a Long Term Evolution (LTE)/Long Term Evolution Advanced (LTE-A) communication module and a coexistence communication module. The method includes the following steps: a first sending step, sending a coexistence communication module startup notification message to the base station, and a first interference avoidance step, before sending auxiliary information to the base station, the wireless communication terminal using a Time Division Multiplexing (TDM) mode between the LTE/LTE-A communication module and the coexistence communication module.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: January 19, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Weiwei Wang, Yanling Lu, Haibo Xu, Hua Zhou
  • Publication number: 20160013918
    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: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Inventors: Lei ZHANG, Yi WANG, Yanling LU, Hua ZHOU
  • Publication number: 20150327187
    Abstract: Embodiments of the present disclosure provide a method and apparatus for reporting power headroom. The method includes: transmitting a power headroom report message by UE to an eNB when a report condition of PH is satisfied, related information in the power headroom report message which corresponds to a carrier multiplexed with a D2D link including a PH value of the D2D link and a PH value of a cellular link; wherein an order of the PH value of the D2D link and the PH value of the cellular link in the power headroom report message is predefined according to system configuration. With the method and apparatus of the embodiments, the UE may accurately and/or punctually report power headroom of the D2D link to the eNB. Therefore, the eNB may schedule the resources of the D2D link and the cellular link more flexibly and effectively.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 12, 2015
    Inventors: Yanling LU, Haibo XU
  • Publication number: 20150305079
    Abstract: An information reporting method for device to device communication, user equipment and base station. The method includes: transmitting, by UE, indication information indicating to perform D2D-only communication, so that a base station learns that a data traffic of the UE is a D2D-only communication traffic. The base station may learn D2D-only information of the UE, so as to suitably configure the UE, thereby avoiding unnecessary handover or mode selection.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Tao QIU, Ningjuan CHANG, Haibo XU, Yanling LU, Weiwei WANG
  • Publication number: 20150305080
    Abstract: A logic channel handling method for D2D (device to device) communication, UE and a base station. The method includes: judging, by the UE, whether a DRB is configured/activated/enabled for D2D communication; performing independent logic channel prioritization and data multiplexing on logic channel(s) to which the DRB configured/activated/enabled for D2D communication corresponds. An MAC layer of the UE can handle communication data correctly even if there is DRB for D2D communication.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Haibo XU, Yanling LU, Lianhai WU, Tao QIU, Ningjuan CHANG, Weiwei WANG
  • Publication number: 20150304928
    Abstract: A Method for selecting a cell, a method for triggering a measurement report, a base station and terminal equipment. The method for selecting a cell includes: notifying, by a base station, terminal equipment of a first scaling factor set for scaling hysteresis of a measurement result of a serving cell needed in evaluation of the serving cell, and/or a second scaling factor set for scaling an offset value of a measurement result of a neighboring cell needed in evaluation of the neighboring cell. In this way, the base station needs not to notify the terminal equipment of sizes of a neighboring cell and a serving cell, so that signaling load is relatively small, selection of a reselected cell in cell reselection may be optimized, and the system not only is wholly improved with respect to spectrum utilization, but also guarantees service quality of users.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Inventors: Yanling LU, Ningjuan CHANG
  • Patent number: 9148857
    Abstract: A communication method in a discontinuous reception mode of a mobile communication system and communication terminal having the discontinuous reception mode are disclosed in the present invention. The method comprises: performing, by a terminal, a contention based transmission; starting a first timer, wherein the terminal is kept active during the operation of the first timer; and stopping the first timer when a preset first condition is met.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: September 29, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Yanling Lu, Yoshiaki Ohta
  • Patent number: 9143986
    Abstract: Embodiments of the present invention provide a load compensation method, a measuring method for load estimation, a base station and user equipment. The load compensation method includes: obtaining, by a base station of compensation cell, an estimated value of a resource needed by user equipment of energy-saving cell in the compensation cell according to signal quality of the compensation cell measured by the user equipment of the energy-saving cell; determining whether to compensate for the energy-saving cell according to the estimated value of the resource needed by user equipment of the energy-saving cell in the compensation cell; and increasing power of related resources to compensate for the energy-saving cell after it is determined to compensate for the energy-saving cell. With the embodiments of the present invention, the resources of the compensation cell occupied by the user equipment of the energy-saving cell may be reflected, thereby improving accuracy of load compensation.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: September 22, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Weiwei Wang, Zhaojun Li, Yanling Lu, Haibo Xu, Hua Zhou
  • Publication number: 20150250014
    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: Application
    Filed: May 19, 2015
    Publication date: September 3, 2015
    Inventors: Tao QIU, Lianhai WU, Ningjuan CHANG, Haibo XU, Weiwei WANG, Yanling LU
  • Publication number: 20140308951
    Abstract: A method and apparatus for detecting recovery of an interrupted cell, including: transmitting request access information to a coverage of an interrupted cell by a base station of the interrupted cell after performing a self-healing process, so that user equipment within the coverage accesses to the base station according to the request access information; counting, by the base station, whether there is user equipment succeeded in accessing within a predefined period of time, or counting whether the number of user equipments succeeded in accessing within a predefined period of time is greater than a predefined threshold value; and determining by the base station that the interrupted cell is recovered, if there is user equipment succeeded in accessing within the predefined period of time, or if the number of user equipments succeeded in accessing within the predefined period of time is greater than the predefined threshold value.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: Ningjuan CHANG, Weiwei WANG, Yanling LU, Haibo XU
  • Publication number: 20140301317
    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 18, 2014
    Publication date: October 9, 2014
    Inventors: Haibo XU, Yanling LU
  • Publication number: 20140206357
    Abstract: A method and apparatus for estimating mobility status of a terminal, including: determining, by the terminal, whether a handover or a cell reselection happens between groups or within a group according to received network topology information; counting, by the terminal, the handover or the cell reselection according to an inter-group size if the handover or the cell reselection happens between groups; counting, by the terminal, the handover or the cell reselection according to an intra-group mobility counting result if the handover or the cell reselection happens within a group; and estimating, by the terminal, the mobility status of the terminal according to a counting result. With the method and apparatus of the embodiments, the precision of the estimation is increased at a relatively low cost of signaling, and the prediction result is more accurate and the applicable scenarios are more wide, but also the air-interface signaling is simple.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 24, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Yanling LU, Weiwei WANG, Haibo XU, Ningjuan CHANG
  • Publication number: 20140206362
    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: Application
    Filed: March 26, 2014
    Publication date: July 24, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yuantao ZHANG, Yanling LU, Weiwei WANG, Ningjuan CHANG
  • Publication number: 20140153524
    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: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: Fujitsu Limited
    Inventors: Haibo XU, Yanling LU, Yuantao ZHANG, Yi WANG
  • Publication number: 20140146680
    Abstract: A power control including: determining by a macro base station a dormant cell to be activated based on a measurement report; and transmitting an activation request to the base station of the dormant cell to be activated, the activation request including a cell ID of the dormant cell to be activated and a reduction value of the power used by the dormant cell after being activated relative to the maximum power level or an initial power level, a power increasing level and time duration of power or predetermined first time. The base station of the dormant cell transmits the signal at power reduced by the reduction value with respect to the maximum power after the dormant cell is activated or transmits the signal at the power that is increased step by step.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Weiwei WANG, Zhaojun LI, Yanling LU, Haibo XU, Hua ZHOU