Patents by Inventor Yufan LIU

Yufan LIU 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: 12217188
    Abstract: The present application discloses a method and a device for user grouping and resource allocation in a NOMA-MEC system. The hybrid deep reinforcement learning algorithm proposed in the present application solves the hybrid problem of deep reinforcement learning that is difficult to deal with both discrete and continuous action spaces by using DDPG to optimize continuous actions and DQN to optimize discrete actions. Specifically, the algorithm determines a bandwidth allocation, an offloading decision, and a sub-channel allocation (user grouping) of the user device based on the user's channel state, in order to maximize the ratio of the computation rate to the consumed power of the system. The algorithm is well adapted to the dynamic characteristics of the environment and effectively improves the energy efficiency and spectrum resource utilization of the system.
    Type: Grant
    Filed: April 16, 2024
    Date of Patent: February 4, 2025
    Inventors: Shasha Zhao, Lidan Qin, Dengyin Zhang, Chenhui Sun, Qing Wen, Ruijie Chen, Yufan Liu
  • Publication number: 20240296333
    Abstract: The present application discloses a method and a device for user grouping and resource allocation in a NOMA-MEC system. The hybrid deep reinforcement learning algorithm proposed in the present application solves the hybrid problem of deep reinforcement learning that is difficult to deal with both discrete and continuous action spaces by using DDPG to optimize continuous actions and DQN to optimize discrete actions. Specifically, the algorithm determines a bandwidth allocation, an offloading decision, and a sub-channel allocation (user grouping) of the user device based on the user's channel state, in order to maximize the ratio of the computation rate to the consumed power of the system. The algorithm is well adapted to the dynamic characteristics of the environment and effectively improves the energy efficiency and spectrum resource utilization of the system.
    Type: Application
    Filed: April 16, 2024
    Publication date: September 5, 2024
    Inventors: Shasha ZHAO, Lidan QIN, Dengyin ZHANG, Chenhui SUN, Qing WEN, Ruijie CHEN, Yufan LIU
  • Patent number: 10152503
    Abstract: There is provided a method that includes (a) receiving a unique identifier of a first entity, (b) constructing a family tree of entities that includes the first entity, (c) calculating a decision-making power score for each entity in the family tree in accordance with a rule, thus yielding decision-making power scores, (d) identifying a decision-making entity in the family tree, based on the decision-making power scores, thus yielding an identification of the decision-making entity, and (e) controlling a messaging system to direct a correspondence to a recipient, based on the identification of the decision-making entity. There is also provided a system that performs the method, and a storage device for storing instructions for a processor to perform the method.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 11, 2018
    Assignee: THE DUN & BRADSTREET CORPORATION
    Inventors: Yufan Liu, Xin Yuan, MeiHsiu Lin, Nipa Basu
  • Publication number: 20170124132
    Abstract: There is provided a method that includes (a) receiving a unique identifier of a first entity, (b) constructing a family tree of entities that includes the first entity, (c) calculating a decision-making power score for each entity in the family tree in accordance with a rule, thus yielding decision-making power scores, (d) identifying a decision-making entity in the family tree, based on the decision-making power scores, thus yielding an identification of the decision-making entity, and (e) controlling a messaging system to direct a correspondence to a recipient, based on the identification of the decision-making entity. There is also provided a system that performs the method, and a storage device for storing instructions for a processor to perform the method.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 4, 2017
    Inventors: Yufan LIU, Xin YUAN, MeiHsiu LIN, Nipa BASU