Patents by Inventor Jianming Wu

Jianming 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: 20170070955
    Abstract: Embodiments of the present invention disclose an energy saving method for a wireless AP, including: when it is detected that a time during which a wireless AP transmits no packet uplink or downlink and is associated with no station is greater than a preset time threshold, disabling, by the wireless AP, a transmit channel, and retaining only a receive channel; listening for, by the wireless AP, a Probe Request through the receive channel; and if the Probe Request obtained by listening meets a preset activation condition, enabling, by the wireless AP, the transmit channel. The embodiments of the present invention further disclose a wakeup method for a wireless AP and related devices. By means of the present invention, power consumption of a wireless AP can be effectively reduced.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventor: Jianming WU
  • Publication number: 20170064737
    Abstract: A method for resource allocation, method for channel state information transmission, base station and user equipment. Wherein the method for resource allocation includes: determining, by a base station, that it is necessary for a UE to report aperiodic CSI of relevant downlink CCs; and allocating, by the base station, corresponding resources to the UE according to the number of the relevant downlink CCs. The base station allocates corresponding resources to the UE in accordance with the number of relevant downlink CCs, resource allocation is flexible, and the transmission of UCI in case of multiple carriers is supported.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Yi WANG, Hua ZHOU, Jianming WU
  • Patent number: 9572172
    Abstract: The present invention provides a technique for scheduling data, and in particular, scheduling real-time or voice data for transmissions during a transmit time interval in a multi-carrier communication environment. For each transmit time interval, channel condition indicia for multiple users is determined, and an iterative scheduling process is then implemented based in part on the channel condition indicia. The iterative scheduling initially pre-assigns select tones for each of the remaining users that have not been permanently assigned tones for the given transmit time interval. Next, the remaining user having the least favorable channel conditions is selected as an active user. The newly selected active user is then permanently assigned the select tones that were initially pre-assigned to that particular user. The permanently assigned tones are removed from consideration, and the process is repeated until all the remaining users are permanently assigned unique tones for scheduling.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 14, 2017
    Assignee: Apple Inc.
    Inventors: Jianming Wu, Wen Tong, Peiying Zhu
  • Patent number: 9571261
    Abstract: A carrier aggregation system, includes transmitting a first signaling to configure one additional carrier to a user equipment (UE) at which the additional carriers are deactivated, to configure a timer to each additional carrier for the UE by which the carrier is deactivated after the corresponding timer expiry; transmitting a second signaling that carries an activation indication to the UE to activate one deactivated additional carrier in the configured carriers for the UE; activating at least one deactivated additional carrier, starting the timer, controlling the UE to start Physical Downlink Control Channel (PDCCH) monitoring and Physical Downlink Shared Channel (PDSCH) receiving on the activated additional carrier; transmitting PDCCH on the activated additional carrier for the UE, by which the corresponding timer being restarted; deactivating the activated carrier after the corresponding timer expiry, controlling the UE to stop the PDCCH monitoring and the PDSCH receiving on the deactivated additional car
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: February 14, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Haibo Xu, Yuantao Zhang, Hua Zhou, Jianming Wu, Yoshiaki Ohta
  • Publication number: 20170033882
    Abstract: Code generating including generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.
    Type: Application
    Filed: October 3, 2016
    Publication date: February 2, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Yi WANG, Yuantao ZHANG, Hua ZHOU, Jianming WU
  • Patent number: 9538522
    Abstract: A method for transmitting uplink response signals, base station, mobile station and communication system, includes judging whether to use a downlink secondary component carrier to transmit data to a mobile station; if the judging result is positive, allocating resources according to the number of transmission blocks for transmitting the downlink data in the secondary component carrier, accordingly the mobile station is able to use the resources corresponding to a preconfigured primary component carrier and the resources allocated to the secondary component carrier to select uplink resources for transmitting response signals.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 3, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yuantao Zhang, Yi Zhang, Yuanrong Lan, Hua Zhou, Jianming Wu
  • Patent number: 9538408
    Abstract: A method and system are provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) system. The MIMO system may comprise at least one MIMO transmitter and at least one MIMO receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO communication systems. The method may include generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: January 3, 2017
    Assignee: BlackBerry Limited
    Inventors: Wen Tong, Ming Jia, Jianming Wu, Dong-Sheng Yu, Peiying Zhu
  • Patent number: 9521666
    Abstract: Embodiments of the present invention provide a method and apparatus for triggering aperiodic feedback in coordinated multipoint transmission. The method includes: transmitting, by an eNB to UE, dynamic control information (DCI) and preconfigured feedback sets corresponding to the DCI, so that the UE aperiodically feeds back corresponding channel state information (CSI) according to the DCI and the feedback sets corresponding to the DCI; wherein the preconfigured feedback sets corresponding to the DCI are classified according to a triggered transmitting point or a CSI-RS of non-zero power, or are classified according to configured CSI, or are classified according to an interference type. With the method and apparatus of the embodiments of the present invention, a relatively good tradeoff between flexibility of aperiodic CSI feedback and signaling load in a CoMP transmission process or a joint transmission process of CoMP and CA may be achieved.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 13, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yi Zhang, Yi Wang, Jian Zhang, Hua Zhou, Jianming Wu
  • Patent number: 9510333
    Abstract: A method for resource allocation, method for channel state information transmission, base station and user equipment. Wherein the method for resource allocation includes: determining, by a base station, that it is necessary for a UE to report aperiodic CSI of relevant downlink CCs; and allocating, by the base station, corresponding resources to the UE according to the number of the relevant downlink CCs. The base station allocates corresponding resources to the UE in accordance with the number of relevant downlink CCs, resource allocation is flexible, and the transmission of UCI in case of multiple carriers is supported.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: November 29, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yi Wang, Hua Zhou, Jianming Wu
  • Publication number: 20160337092
    Abstract: The present invention provides a data transmission method, device, and system, and relates to the communications field, which can improve data transmission efficiency. The method includes: determining, by a second base station, that statuses of all HARQ processes in a first hybrid automatic repeat request HARQ buffer are occupied states; and sending, by the second base station, a second data block to a user equipment UE by using an HARQ process in an idle state in a second HARQ buffer, where the first HARQ buffer and the second HARQ buffer are different HARQ buffers disposed in the second base station. The data transmission method, device, and system are applicable to data transmission in carrier aggregation.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anquan YANG, Jianming WU, Chongquan WANG
  • Publication number: 20160338090
    Abstract: A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.
    Type: Application
    Filed: July 26, 2016
    Publication date: November 17, 2016
    Inventors: Jianming Wu, Ming Jia, Wen Tong, Peiying Zhu
  • Patent number: 9484833
    Abstract: The present invention discloses a system and a method for controlling PCS voltage and frequency, wherein the system comprises a reference voltage converter, a phase-locked loop, a grid-side voltage converter, a voltage transformer, a first proportional integral controller, a second proportional integral controller, a coordinate converter and a SVPWM generator; a reference voltage converter is connected to an output terminal of a the phase-locked loop, and the output terminal of the phase-locked loop is further connected to a grid-side voltage converter; the grid-side voltage converter is connected to a high-voltage side of an isolating transformer of the electric grid via the voltage transformer; two output terminals of the grid-side voltage converter are respectively connected to the coordinate converter via two proportional integral controllers; an output terminal of the coordinate converter is connected to the SVPWM generator; an output terminal of the SVPWM generator is connected to a power switch of the
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: November 1, 2016
    Assignees: State Grid Corporation of China, Xuancheng Power Supply Company of State Grid Anhui Electric Power Corporation, Beijing Hua Teng Kai Yuan Electric Company Limited
    Inventors: Yeru Zhou, Jian Wang, Dongsheng Fu, Xiaoma Jin, Dongsheng Zou, Jin Pan, Yi Song, Jianzhou Cheng, Tianwen Zheng, Jianming Wu, Hongbo Luo
  • Patent number: 9461767
    Abstract: A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 4, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yi Wang, Yuantao Zhang, Hua Zhou, Jianming Wu
  • Publication number: 20160286482
    Abstract: Embodiments of the present invention provide an energy-saving method and apparatus for a heterogeneous network. The energy-saving method for a heterogeneous network includes: performing traffic detection on a cluster, where the cluster includes at least one first network device configured to provide a capacity enhanced network resource; and migrating a service in the cluster to a second network device if traffic of the cluster does not exceed a first preset threshold, and turning off the first network device in the cluster, where the second network device is configured to provide a coverage-type network resource, and network coverage of the first network device is within network coverage of the second network device. By means of the energy-saving method and apparatus for a heterogeneous network that are provided in the embodiments of the present invention, energy-saving processing on a heterogeneous network is implemented and a resource waste is avoided.
    Type: Application
    Filed: June 3, 2016
    Publication date: September 29, 2016
    Inventors: Chuangming Zheng, Jianming Wu
  • Patent number: 9451467
    Abstract: A method and system for fractional frequency reuse in a communication network. A plurality of fractional frequency reuse modes for wireless communication are defined in which each of the modes are associated with a corresponding group of wireless communication tones assigned to one of a plurality of power levels. Communication with at least one mobile terminal in a first region is established using a fractional frequency reuse mode from the plurality of fractional frequency reuse modes. A coverage problem with communication with at least one of the mobile terminal in the first sector is detected. A base station associated with a second region is notified to change communication within the second region to a different fractional frequency reuse mode from the plurality of fractional frequency reuse modes.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 20, 2016
    Assignee: BlackBerry Limited
    Inventors: Sophie Vrzic, Jianming Wu, Mo-Han Fong
  • Patent number: 9432092
    Abstract: Embodiments of the present invention provide a downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus. The downlink precoding method includes: acquiring a precoding matrix indicator by a cooperating point and determining the precoding matrix of the cooperating point according to the precoding matrix indicator, the number of columns of the precoding matrix of the cooperating point being less than that of columns of the precoding matrix of a serving point; and performing, by the cooperating point, downlink precoding to the data to be transmitted according to the determined precoding matrix of the cooperating point. With the methods and apparatuses of the embodiments of the present invention, as the cooperating points participate only in the transmission of data of part of layers in the coordinated scenarios, the complexity of calculation and the feedback overhead are lowered in the UE end.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 30, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yueqiao Xu, Hua Zhou, Yi Wang, Jianming Wu
  • Patent number: 9432162
    Abstract: A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: August 30, 2016
    Assignee: BlackBerry Limited
    Inventors: Jianming Wu, Ming Jia, Wen Tong, Peiying Zhu
  • Publication number: 20160248573
    Abstract: A carrier aggregation system, includes transmitting a first signaling to configure one additional carrier to a user equipment (UE) at which the additional carriers are deactivated, to configure a timer to each additional carrier for the UE by which the carrier is deactivated after the corresponding timer expiry; transmitting a second signaling that carries an activation indication to the UE to activate one deactivated additional carrier in the configured carriers for the UE; activating at least one deactivated additional carrier, starting the timer, controlling the UE to start Physical Downlink Control Channel (PDCCH) monitoring and Physical Downlink Shared Channel (PDSCH) receiving on the activated additional carrier; transmitting PDCCH on the activated additional carrier for the UE, by which the corresponding timer being restarted; deactivating the activated carrier after the corresponding timer expiry, controlling the UE to stop the PDCCH monitoring and the PDSCH receiving on the deactivated additional car
    Type: Application
    Filed: April 12, 2016
    Publication date: August 25, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Haibo XU, Yuantao ZHANG, Hua ZHOU, Jianming WU, Yoshiaki OHTA
  • Patent number: 9407468
    Abstract: A channel estimating apparatus includes a receiver that receives reference signal groups that are respectively transmitted from wireless communications units and that each include a reference signal that is allocated a common channel resource allocated to a reference signal in another reference signal group; a first estimating unit that based on a reference signal that is in a first reference signal group among the received reference signal groups and that is allocated a unique channel resource not allocated to a reference signal in another reference signal group, estimates a reference signal that is in the first reference signal group and allocated the common channel resource; and a second estimating unit that based on the reference signal estimated by the first estimating unit, estimates a reference signal that is in a second reference signal group among the received reference signal groups and that is allocated the common channel resource.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 2, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Jianming Wu
  • Patent number: 9374138
    Abstract: Embodiments of the present invention provide a downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus. The downlink precoding method includes: acquiring a precoding matrix indicator by a cooperating point and determining the precoding matrix of the cooperating point according to the precoding matrix indicator, the number of columns of the precoding matrix of the cooperating point being less than that of columns of the precoding matrix of a serving point; and performing, by the cooperating point, downlink precoding to the data to be transmitted according to the determined precoding matrix of the cooperating point. With the methods and apparatuses of the embodiments of the present invention, as the cooperating points participate only in the transmission of data of part of layers in the coordinated scenarios, the complexity of calculation and the feedback overhead are lowered in the UE end.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 21, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yueqiao Xu, Hua Zhou, Yi Wang, Jianming Wu