Patents by Inventor Zizhou Wang

Zizhou Wang 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: 20240323869
    Abstract: The present application relates to a beamforming method, a beamforming device and a computer-readable storage medium, the beamforming method comprises: the measurement signal is sent one by one for each candidate beam, and the candidate beam is different from each other; obtain the receiving power and phase information of the measurement signals corresponding to each candidate beam received by the receiving end; according to the order of the receiving power from high to low and the power allocation strategy, at least two of the candidate beams are chosen as the target beam; and determine the transmitted beam based on the target beam and the beamforming strategy.
    Type: Application
    Filed: January 23, 2024
    Publication date: September 26, 2024
    Inventors: Xide Mei, Man Wai Kwan, Zizhou Wang, Jihui Zhang, Wei Han, Kong Chau Tsang
  • Patent number: 11284405
    Abstract: Described is a method of reducing uplink inter-cell interference in a cellular communications network. The method comprises identifying in a cell any user equipments (UEs) which are susceptible to interference (ISUs) from another UE, particularly another UE in a neighboring cell. The method includes identifying in said cell any UEs causing interference (ICUs) to at least one neighboring cell and, more particularly, causing interference to a UE in a neighboring cell. The identified ISUs and ICUs are combined into a priority list for frequency resource reservation or allocation in said cell. The method may include limiting the identification of ISUs and ICUs to a selected number of UEs within the cell.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 22, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Zizhou Wang, Qifeng Liao, Jihui Zhang, Man Wai Kwan, Kong Chau Tsang
  • Publication number: 20200314863
    Abstract: Described is a method of reducing uplink inter-cell interference in a cellular communications network. The method comprises identifying in a cell any user equipments (UEs) which are susceptible to interference (ISUs) from another UE, particularly another UE in a neighboring cell. The method includes identifying in said cell any UEs causing interference (ICUs) to at least one neighboring cell and, more particularly, causing interference to a UE in a neighboring cell. The identified ISUs and ICUs are combined into a priority list for frequency resource reservation or allocation in said cell. The method may include limiting the identification of ISUs and ICUs to a selected number of UEs within the cell.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Inventors: Zizhou Wang, Qifeng Liao, Jihui Zhang, Man Wai Kwan, Kong Chau Tsang
  • Patent number: 10412726
    Abstract: The present disclosure provides a method and apparatus for X2 signaling. The method comprises, in a wireless communication network supporting coordinated multiple point transmission, transmitting load information from a first base station to at least one second base station via X2 signaling, wherein the load information comprises at least one item of i) a relative narrowband beam information element or ii) a relative narrowband scheduling information element. Current X2 signaling is enhanced to support coordinated multiple point transmission with non-ideal backhaul and improve interference coordination.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: September 10, 2019
    Assignee: ALCATEL LUCENT
    Inventors: Zhilan Xiong, Min Zhang, Hakon Helmers, Zizhou Wang
  • Patent number: 10212677
    Abstract: The present disclosure relates to methods and systems for selection of synchronization targets. Embodiments of the present disclosure provide for selecting a synchronization target for a network device, within operational network constraints, when the network device loses its current synchronization target. When a network device loses its current synchronization target, the stratum index of the network device is downgraded to an artificial stratum index before a selection of a new synchronization target is made. The artificial stratum index is broadcast to children network devices. Downgrading the stratum index to an artificial stratum index allows for selection of available synchronization target network devices with stratum indices higher than or equal to the network device's stratum index. After selection of a new synchronization target, the network device's stratum index is updated, and the new updated stratum index of the network device is broadcast to the children network devices of the network device.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 19, 2019
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Wilson Wang Kit Thong, Elaine Jihui Zhang, Victor Man Wai Kwan, Vincent Zizhou Wang, Eric Kong Chau Tsang, Wei Han
  • Publication number: 20190053173
    Abstract: The present disclosure relates to methods and systems for selection of synchronization targets. Embodiments of the present disclosure provide for selecting a synchronization target for a network device, within operational network constraints, when the network device loses its current synchronization target. When a network device loses its current synchronization target, the stratum index of the network device is downgraded to an artificial stratum index before a selection of a new synchronization target is made. The artificial stratum index is broadcast to children network devices. Downgrading the stratum index to an artificial stratum index allows for selection of available synchronization target network devices with stratum indices higher than or equal to the network device's stratum index. After selection of a new synchronization target, the network device's stratum index is updated, and the new updated stratum index of the network device is broadcast to the children network devices of the network device.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 14, 2019
    Inventors: Wilson Wang Kit Thong, Elaine Jihui Zhang, Victor Man Wai Kwan, Vincent Zizhou Wang, Eric Kong Chau Tsang, Wei Han
  • Publication number: 20160345309
    Abstract: The present disclosure provides a method and apparatus for X2 signaling. The method comprises, in a wireless communication network supporting coordinated multiple point transmission, transmitting load information from a first base station to at least one second base station via X2 signaling, wherein the load information comprises at least one item of i) a relative narrowband beam information element or ii) a relative narrowband scheduling information element. Current X2 signaling is enhanced to support coordinated multiple point transmission with non-ideal backhaul and improve interference coordination.
    Type: Application
    Filed: January 20, 2015
    Publication date: November 24, 2016
    Applicant: Alcatel Lucent
    Inventors: Zhilan Xiong, Min Zhang, Hakon Helmers, Zizhou Wang