Patents by Inventor Lianhai Wu

Lianhai Wu 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: 20190230563
    Abstract: A communication apparatus including: a controller configured to configure a plurality of SCells including a first SCell carrying a PUCCH and a second SCell different from first SCell; and a transmitter configured to transmit to a network side via a Physical Uplink Channel (PUCCH) a uplink control information (UCI) using the first SCell; wherein the controller configures a deactivation timer with respect SCell except for the first SCell among the plurality of SCells, and the controller configures the first SCell to be activated and deactivated by an activation/deactivation media access control (MAC) control element (CE).
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Meiyi JIA, Haibo XU, Hua ZHOU, Lianhai WU
  • Publication number: 20190223214
    Abstract: An uplink transmission control method and apparatus and a communication system. The network device explicitly or implicitly indicates dynamic scheduling information of RACH resources via control signaling. After selecting RACH resources, the user equipment (UE) monitors control signaling corresponding to the RACH resources. According to situations of receiving the control signaling, when the selected RACH resources are available, the UE directly transmits a random access request matched with the RACH resources; and when the selected RACH resources are unavailable, the UE further selects RACH resources according to configuration or indication of a base station, and until an RACH resource is available, the UE transmits a random access request matched with the RACH resource. Hence, normal random access of the UE may be ensured, and interference to other UEs may be reduced.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Qinyan JIANG, Hua ZHOU, Lianhai WU
  • Publication number: 20190208500
    Abstract: A downlink data transmission method and apparatus and a communication system. The method includes: an anchor eNB determines a non-anchor eNB which is required to schedule downlink data of an UE according to a paging area information of the UE when the downlink data of the UE arrives; and the anchor eNB transmits a paging message to the non-anchor eNB, the paging message including a context of the UE and a data packet of the downlink data, so that the non-anchor eNB schedules the downlink data of UE according to the context of the UE. With the embodiments of this disclosure, a time for state transition from an idle state to a connected state for the UE is shortened, and control plane delay is reduced.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Meiyi JIA, Lianhai WU, Yulong SHI
  • Publication number: 20190208476
    Abstract: A power control method and apparatus and a communication system. The method includes: a terminal acquires transmission power assistant information when transmission of sidelink information is triggered; and the terminal determines transmission power of the sidelink information according to the transmission power assistant information. With the embodiments of this disclosure, by using a characteristic that an application stratum of the terminal is able to learn a distance between a receiver end and a transmitter end according to a positioning system and/or a map, information related on power setting is provided to an access stratum of the terminal, so as to instruct the terminal or an eNB to set appropriate transmission power.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Hua ZHOU
  • Publication number: 20190200251
    Abstract: This disclosure provides a transmission status reporting apparatus and method and communication system. The method includes: obtaining information on transmission rate difference and/or information on scheduling latency difference between a plurality of radio links; the information on transmission rate difference is obtained based on information on transmission statuses of radio links successfully transmitting PDCP layer data packets, and the information on scheduling latency difference is obtained based on information on transmission statuses of radio links transmitting RRC layer data packets. Hence, an accurate reference basis may be provided for a transmitting device in determining whether a current network is suitable to performing duplication transmission, gains and losses between wasted radio resources and reduced latency in the multi-connection duplication transmission mode may be better weighted, and a more suitable data transmission mode or flow control mode may be configured.
    Type: Application
    Filed: January 21, 2019
    Publication date: June 27, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Yulong SHI, Lianhai WU, Meiyi JIA
  • Publication number: 20190182797
    Abstract: An area identifying apparatus and method and a communication system. The area identifying method includes: receiving, by a UE, area identification information used for identifying an area transmitted by a base station; comparing the received area identification information with area identification information currently stored in the UE; and determining whether an area where the UE is located is changed according to a result of comparison. Hence, whether the area where the UE is located is changed or which area the UE is located may be efficiently identified.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Meiyi JIA, Yulong SHI, Lianhai WU, Hua ZHOU
  • Patent number: 10313938
    Abstract: A deactivation method and apparatus for a secondary cell and a communications system. The deactivation method includes: restarting a deactivation timer associated with a first SCell carrying a PUCCH, in a case where a deactivation timer is restarted or a channel quality indicator report is transmitted in any second SCell in a secondary PUCCH cell group. Hence, a case will not occur where understanding of an activation state of a secondary cell by a UE and a base station is inconsistent due to an UE autonomous deactivation mechanism.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Meiyi Jia, Haibo Xu, Hua Zhou, Lianhai Wu
  • Publication number: 20190159084
    Abstract: This disclosure provides an information transmission method and apparatus and communication system. The method includes: receiving, by a user equipment, indication information transmitted by a base station indicating that the user equipment is capable of using the sidelink in a case where the air-interface link is incapable of normally transmitting data; and using the sidelink by the user equipment to perform data transmission with another user equipment in the case where the air-interface link is incapable of normally transmitting data. Hence, even if in a case where an air-interface link is unable to transmit data normally, data information may be transmitted successfully in other links.
    Type: Application
    Filed: January 21, 2019
    Publication date: May 23, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Hua ZHOU
  • Patent number: 10271330
    Abstract: Embodiments of this disclosure provide an information transmission method and apparatus and a system. The method is applicable to a terminal, the terminal being configured with a first type of resource pool for transmitting first type of information and a second type of resource pool for transmitting second type of information; wherein, the method includes: when the terminal is triggered to transmit information, it selects resources for transmitting the information from the configured first type of resource pool or second type of resource pool according to an attribute of the information; and transmits the information by using the selected resources. With the embodiments of this disclosure, it may be ensured that the terminal will not miss detecting a type of information due to a semi-duplexing problem, such as detecting resources for transmitting emergency information, thereby increasing utilization of resources, and improving reliability of V2V communications.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 23, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Lianhai Wu, Haibo Xu, Hua Zhou
  • Publication number: 20190090282
    Abstract: An apparatus for transmitting a random access response and a communication system, configured in a base station, includes: a determining unit configured to determine a coverage enhancement level to which a user equipment (UE) transmitting a preamble belongs according to a position of a time-frequency resource of the detected preamble; a calculating unit configured to, according to a coverage enhancement level identity corresponding to the UE, calculate a random access wireless network temporary identity (RA-RNTI) used by the UE; and a transmitting unit configured to transmit a random access response (RAR) of the UE, the RAR being scrambled by the RA-RNTI of the UE.
    Type: Application
    Filed: October 16, 2018
    Publication date: March 21, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Yulong SHI, Lianhai WU, Meiyi JIA
  • Publication number: 20190069247
    Abstract: An information transmission apparatus and method and a communication system. The information transmission method includes: reporting information including an ID of a relay UE by a remote UE to a base station, the information further indicating that the remote UE supports sidelink communication and/or non-3GPP communication with the relay UE; and performing communication based on a communication link configured by the base station or a communication link selected by the remote UE. Hence, not only the UE may be made power-saving, but also continuity of data transmission may be kept.
    Type: Application
    Filed: October 29, 2018
    Publication date: February 28, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Hua Zhou
  • 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
  • Publication number: 20180368203
    Abstract: A transmission apparatus and method of status indication and a communication system. The transmission method of status indication includes: determining whether an RLC layer has successfully received all RLC PDUs of uplink data when a base station receives the uplink data transmitted by a UE; and transmitting PDCCH information to the UE, in a case where the RLC layer has successfully received all the RLC PDUs of the uplink data; the PDCCH information is used to indicate that the uplink data have been successfully received and/or the UE is permitted to enter into a DRX status. Hence, not only transmission of RLC status report may be reduced and transmission efficiency of the whole system may be improved, but also the UE may be made to enter into the DRX status as fast as possible and power consumption of the UE may be lowered.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yulong SHI, Meiyi JIA, Lianhai WU
  • Publication number: 20180317124
    Abstract: Embodiments of this disclosure provide an information transmission method and apparatus and a system. The method is applicable to a terminal and includes: whether the terminal is in a congestion state is determined; and corresponding information is transmitted by using a parameter related to the congestion state when the terminal is in a congestion state. With the embodiments of this disclosure, the parameter related to the congestion state is configured for the terminal, thereby reducing resource collision, improving resource utilization efficiency and improving reliability of communications.
    Type: Application
    Filed: June 25, 2018
    Publication date: November 1, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180310303
    Abstract: Embodiments of this disclosure provide an information transmission method and apparatus and a system. The method is applicable to a terminal, the terminal being configured with a first type of resource pool for transmitting first type of information and a second type of resource pool for transmitting second type of information; wherein, the method includes: when the terminal is triggered to transmit information, it selects resources for transmitting the information from the configured first type of resource pool or second type of resource pool according to an attribute of the information; and transmits the information by using the selected resources. With the embodiments of this disclosure, it may be ensured that the terminal will not miss detecting a type of information due to a semi-duplexing problem, such as detecting resources for transmitting emergency information, thereby increasing utilization of resources, and improving reliability of V2V communications.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180199312
    Abstract: A sidelink information transmission device and method and a communication system. The method includes: selecting a relay user equipment by a remote user equipment from one or more user equipments; and transmitting to a base station first resource request information used for requesting for allocating a sidelink resource; the first resource request information indicates that the remote user equipment and the relay user equipment have been paired. Hence, resource waste due to allocating a sidelink resource for remote user equipment but allocating no sidelink resource for paired relay user equipment may be avoided or reduced, or resource collision due to allocating overlapped sidelink resources for remote user equipment and paired relay user equipment may be avoided or reduced.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180160287
    Abstract: Embodiments of this disclosure provide a relay selection method and apparatus and a system. The method includes: relay equipment broadcasts relay discovery information, the relay discovery information including identifier information (a relay UE ID) of the relay equipment and identifier information (a cell ID) of a serving cell of the relay equipment, so that remote terminal receiving the relay discovery information selects relay equipment according to the relay discovery information or transmits relay information of discovered relay equipment to an eNB, thus the eNB may select relay equipment for the remote terminal. With the embodiments of this disclosure, the serving cell may learn a cell where a relay to which the terminal accesses is located, so as to perform configuration for the terminal or perform path switching of downlink data.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 7, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180070281
    Abstract: Embodiments of this disclosure provide a relay reselection method and apparatus and a system; includes: relay equipment monitors a triggering condition for relay reselection; the relay equipment judges whether the triggering condition for relay reselection is met; and the relay equipment transmits relay reselection indication information to a remote terminal taking the relay equipment as a relay when the triggering condition for relay reselection is met, to indicate the remote terminal to perform relay reselection; wherein, the triggering condition for relay reselection is that an air interface channel of the relay equipment is out of synchronization or is about to be out of synchronization, or a notification of terminating a relay function is received, or power of the relay equipment is insufficient. With the embodiments of this disclosure, a time of interruption due to a poor relay link may be reduced, and occurrence of long-time traffic interruption may be avoided.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 8, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180070400
    Abstract: A transmission method and device for sidelink information and a communication system are provided. The transmission method includes: transmitting discovery information by a relay UE, the discovery information at least including a relay ID of the relay UE, relay movement status information and sidelink carrier information. Hence, a remote UE may perform relay discovery, and expansion of coverage of a cell may be achieve.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 8, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Lianhai WU, Haibo XU, Hua ZHOU
  • Publication number: 20180027461
    Abstract: A deactivation method and apparatus for a secondary cell and a communications system. The deactivation method includes: restarting a deactivation timer associated with a first SCell carrying a PUCCH, in a case where a deactivation timer is restarted or a channel quality indicator report is transmitted in any second SCell in a secondary PUCCH cell group. Hence, a case will not occur where understanding of an activation state of a secondary cell by a UE and a base station is inconsistent due to an UE autonomous deactivation mechanism.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Meiyi JIA, Haibo XU, Hua ZHOU, Lianhai WU