公开(公告)号：US11729133B2

公开(公告)日：2023-08-15

申请号：US17966759

申请日：2022-10-14

Applicant: Beijing University of Posts and Telecommunications

Inventor： Bo Cheng ,  Yang Zhang ,  Shuai Zhao ,  Yingying Zhang ,  Junliang Chen

IPC: H04L51/58 ,  H04L67/568

CPC classification number: H04L51/58 ,  H04L67/568

Abstract: Embodiments of the present disclosure provide a software defined network publish-subscribe system and method. The software defined network publish-subscribe system comprises a controller, an administrator controller, a sequencing subsystem and a message multi-backup cache subsystem. The controller is configured to process publish-subscribe transactions in clusters, and comprises sequencing nodes used for generating ordered serial numbers for messages and cache nodes for caching the messages. The administrator controller is configured to simultaneously perform functions of the controller and manage software-defined network. The sequencing subsystem is configured to realize the cooperative sequencing between the administrator controller and the sequencing nodes. The message multi-backup cache subsystem is configured to realize the consistency of the messages through the administrator controller and the cache nodes. Through the interaction of various modules, the consensus of various subscribers on the messages and the message serial numbers is realized on the software defined network publish-subscribe system.

公开(公告)号：US11683398B2

公开(公告)日：2023-06-20

申请号：US17505175

申请日：2021-10-19

Applicant: Beijing University of Posts and Telecommunications

Inventor： Xiaolong Zheng ,  Dan Xia ,  Liang Liu ,  Huadong Ma

IPC: H04L69/14 ,  H04L69/22 ,  H04W28/02 ,  H04W40/12 ,  H04L43/50 ,  H04W24/06

CPC classification number: H04L69/14 ,  H04L69/22 ,  H04W28/0221 ,  H04L43/50 ,  H04W24/06 ,  H04W40/12

Abstract: The embodiments of the present invention provide a method, apparatus for cross-protocol opportunistic routing, an electronic device, and a storage medium, the method includes: when there is a first data packet in a low-power wireless network, simulating the first data packet to generate a second data packet including to-be-transmitted data in the first data packet; obtaining identification information of a destination node in the first data packet, and selecting a low-power node with the lowest delay to the destination node in the low-power wireless network, except the first low-power node, as a forwarding low-power node based on the identification information of the destination node; sending the generated second data packet to the forwarding low-power node, so that the forwarding low-power node forwards the to-be-transmitted data to the destination node. By using high-power nodes, when there is a data packet in the low-power node, the data packet can be sent in time without being transmitted in a reserved idle channel, thereby reducing the transmission delay of the data packet from the source node to the destination node in the low-power wireless network.

公开(公告)号：US11663920B2

公开(公告)日：2023-05-30

申请号：US17023813

申请日：2020-09-17

Applicant: Beijing University of Posts and Telecommunications

Inventor： Wenjun Xu ,  Chang Deng ,  Ping Zhang ,  Zhi Zhang ,  Hui Gao ,  Zhiyong Feng

IPC: G08G5/00 ,  G06N20/10 ,  B64C39/02 ,  G01C21/34 ,  H04L12/18 ,  G06F18/23213

CPC classification number: G08G5/0013 ,  B64C39/024 ,  G01C21/3469 ,  G06F18/23213 ,  G06N20/10 ,  G08G5/0034 ,  G08G5/0069 ,  H04L12/185 ,  B64U2201/20

Abstract: Disclosed is a method of path optimization for an unmanned aerial vehicle (UAV). In the method, users and the positions of the users are obtained; the users are divided into K wireless multicast user groups; K initial hovering positions corresponding to the K wireless multicast user groups are determined; and a first shortest flying path connecting the K initial hovering positions is determined; and the initial hovering positions of the UAV are optimized to obtain K final hovering positions and a final flying path. The present disclosure also discloses a device of path optimization for a UAV and a computer readable storage medium.

公开(公告)号：US11611567B2

公开(公告)日：2023-03-21

申请号：US17247253

申请日：2020-12-04

Applicant: Beijing University of Posts and Telecommunications

Inventor： Dongbin Wang ,  Hui Zhi ,  Zhouyi Zhu ,  Xu Zhang ,  Jinqiao Shi ,  Yueming Lu ,  Zemin Zhou ,  Hui Wu ,  Kun Guo ,  Yaoyao Guo

IPC: H04L9/40 ,  H04L9/32 ,  H04L61/4511 ,  H04L9/00

Abstract: Embodiments disclosed herein provide a method and system for management and resolution of a blockchain-based top-level domain. The method comprises: a master node receiving request information for operations on top-level domain resource record from a requesting node, and encapsulating master node information and authenticated request information into a pre-preparation message; each normal node verifying the pre-preparation message, and after successful verification, generating a preparation message comprising request information, a request information verification identifier, and current node information; each node verifying the preparation message, when the number of authenticated preparation message sending nodes reaches a consensus threshold, adding an operation result corresponding to the request information to a new block in a local blockchain. The method ensures security of operations on top-level domain resource record stored in the block, resists top-level domain hijacking attacks, and provides consistent processing and storing of operations on top-level domain resource record by multiple nodes.

公开(公告)号：US20230067605A1

公开(公告)日：2023-03-02

申请号：US17456581

申请日：2021-11-25

Applicant: Beijing University of Posts and Telecommunications

Inventor： Liang LIU ,  Xiaolong ZHENG ,  Huadong MA ,  Chengling JIANG ,  Zihui LUO

IPC: G06N3/08 ,  G06N3/04

Abstract: A deep reinforcement learning (DRL)-based intelligent job batching method and apparatus, and an electronic device are provided. The method includes: obtaining static features and a dynamic feature of each job, where the static features of the job include a delivery date, a specification and a process requirement of the job, and the dynamic feature of the job includes a receiving moment; and inputting the static features and the dynamic feature of each job into a job batching module, and using a Markov decision process (MDP) by the job batching module to combine jobs with similar features in a to-be-batched job set into an identical batch, so as to minimize a total quantity of batches obtained finally and a difference in features of jobs in each batch. The DRL-based intelligent job batching method and apparatus can learn a stable batching strategy and provide a stable and efficient job batching solution.

公开(公告)号：US20230038425A1

公开(公告)日：2023-02-09

申请号：US17966759

申请日：2022-10-14

Applicant: Beijing University of Posts and Telecommunications

Inventor： Bo CHENG ,  Yang ZHANG ,  Shuai ZHAO ,  Yingying ZHANG ,  Junliang CHEN

IPC: H04L51/58 ,  H04L67/568

Abstract: Embodiments of the present disclosure provide a software defined network publish-subscribe system and method. The software defined network publish-subscribe system comprises a controller, an administrator controller, a sequencing subsystem and a message multi-backup cache subsystem. The controller is configured to process publish-subscribe transactions in clusters, and comprises sequencing nodes used for generating ordered serial numbers for messages and cache nodes for caching the messages. The administrator controller is configured to simultaneously perform functions of the controller and manage software-defined network. The sequencing subsystem is configured to realize the cooperative sequencing between the administrator controller and the sequencing nodes. The message multi-backup cache subsystem is configured to realize the consistency of the messages through the administrator controller and the cache nodes. Through the interaction of various modules, the consensus of various subscribers on the messages and the message serial numbers is realized on the software defined network publish-subscribe system.

公开(公告)号：US11570672B2

公开(公告)日：2023-01-31

申请号：US16968537

申请日：2018-02-09

Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. ,  BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS

Inventor： Wei Hong ,  Yajun Zhu ,  Yong Li

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/30

Abstract: Disclosed are a handover method for between base stations, and a device, system and storage medium. The base station sends a handover request to a target base station, where the handover request carries type information of a core network used for indicating the type of core network which the UE to be handed over between base stations needs to access. The base station receives a handover response sent from the target base station, where the handover response indicates whether the target base station allows the UE to be handed over to the target base station, and the handover response is sent by the target base station according to the type information of a core network and the type of at least one core network connected to the target base station.

公开(公告)号：US20230028574A1

公开(公告)日：2023-01-26

申请号：US17782993

申请日：2020-10-21

Applicant: ZTE CORPORATION ,  Beijing University of Posts and Telecommunications

Inventor： Jing HAN ,  Baisheng ZHANG ,  Jianwei LIU ,  Xingquan ZUO ,  Yonghao GU ,  Yangfan XU ,  Jin HUANG

IPC: H04L41/142 ,  H04L43/0876 ,  H04L41/147

Abstract: Embodiments of the present disclosure relate to the field of communications, and disclose a traffic prediction method, including: acquiring traffic data of a first preset time period in a historical period, and pre-processing the traffic data; performing empirical mode decomposition (EMD) on pre-processed traffic data to obtain a plurality of component series; using a time series prediction model to fit the plurality of component series, and using a fitted time series prediction model to obtain a plurality of component prediction results for a second preset time period; accumulating all the component prediction results to obtain a traffic prediction result for the second preset time period. The present disclosure further provides a traffic prediction device and a storage medium.

公开(公告)号：US11563651B2

公开(公告)日：2023-01-24

申请号：US17130302

申请日：2020-12-22

Applicant: Beijing University of Posts and Telecommunications

Inventor： Hui Yang ,  Zhengjie Sun ,  Qiuyan Yao ,  Bowen Bao ,  Chao Li ,  Jie Zhang

IPC: H04L12/24 ,  H04L41/5041 ,  G06N3/04 ,  G06N3/08 ,  H04L41/082 ,  H04L41/0896 ,  H04L41/16 ,  H04L47/11

Abstract: Disclosed is a method for network slicing, which includes: determining a service keyword of a service intention after receiving the service intention from a user; converting the service intention into a network request according to the service keyword of the service intention on the basis of a pre-established mapping model, wherein, the network request comprises at least one network requirement index; determining a set of network slicing configuration parameters according to the network request and current network environment state on the basis of a network slicing model, wherein the network slicing model is a deep neural network model for determining network slicing configuration parameters according to a network request and a network environment state; and performing a network slicing according to the set of network slicing configuration parameters. The present disclosure also provides a device for network slicing and a computer readable storage medium.

公开(公告)号：US20230011663A1

公开(公告)日：2023-01-12

申请号：US17782492

申请日：2019-12-03

Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. ,  BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS

Inventor： Wei HONG ,  Yajun ZHU ,  Xuemei QIAO ,  Yong LI

IPC: H04W72/12

Abstract: An information processing method, and the method includes: receiving, by a base station, a buffer status report BSR sent by a first user equipment UE; sending, by the base station, scheduling information to a corresponding second UE based on at least one of a number of the first UEs and the BSR; and allocating SL resource to the first UE according to received sidelink SL resource perception information reported by the second UE based on the scheduling information.