Beijing University of Posts and Telecommunications

www.bupt.edu.cn
Beijing, China

The Beijing University of Posts and Telecommunications is a key national university distinguished by the teaching and research in the field of cable communications, wireless communications, computer, and electronic engineering. BUPT comprises 17 schools, and has an international school program with Queen Mary, University of London.The university was created in 1955 under the Ministry of Posts and Telecommunications and the Communications Department of the General Staff Department of the People's Liberation Army. The name was changed from Institute to University in 1993. It is the most famous and renowned university in the field of telecommunications in China. Wikipedia.

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Patent
Beijing University of Posts and Telecommunications | Date: 2016-01-12

The embodiments of the present invention provide a method and a device for determining scoring models of a three-dimensional animation scene frame, the method comprising: obtaining a dataset of three-dimensional animation scene frames; obtaining a predetermined stereoscopic effect standard score and a predetermined visual comfort standard score corresponding to each three-dimensional animation scene frame; obtaining the disparity map of each three-dimensional animation scene frame, extracting disparity statistic features of each three-dimensional animation scene frame based on its disparity map, and combining the disparity statistic features into one feature vector; and, determining the stereoscopic effect scoring model and the visual comfort scoring model for a three-dimensional animation scene frame respectively based on the feature vector of each three-dimensional animation scene frame in conjunction with the corresponding stereoscopic effect standard score and visual comfort standard score, in order to achieve the automatic scoring of three-dimensional animation scene frames and reduce the influence of subjective factors from the producers on the scoring. The workload is also reduced and the efficiency is improved.


Grant
Agency: European Commission | Branch: H2020 | Program: CSA | Phase: ICT-37-2016 | Award Amount: 2.56M | Year: 2017

Europe and China are at the forefront of technological advances in areas related to the Future Internet (especially 5G and IoT). While both parties share common technological objectives, there is still room for improvement in what concerns bilateral co-operation. As a result, the main purpose of EXCITING is to support the creation of favourable conditions for co-operation between the European and Chinese research and innovation ecosystems, mainly related to the key strategic domains of IoT and 5G. EXCITING will study the research and innovation ecosystem for IoT and 5G in China and compare it with the European model. EXCITING will identify and document the key international standards bodies for IoT and 5G, as well as other associations and fora where discussions take place and implementation decisions are made. Going beyond standardisation, interoperability testing is a key step towards market deployment. EXCITING will identify and document the key international InterOp events at which European and Chinese manufacturers can test and certify their IoT and 5G products. It will also explain the rules for engaging in these events. EXCITING will produce Best Practice guidelines for establishing and operating practical joint collaborations, in order to stimulate further such co-operations in the future on IoT and 5G Large Scale Pilots. As a result of the above investigations EXCITING will produce a roadmap showing how research and innovation ecosystems, policy, standardisation, interoperability testing and practical Large Scale Pilots should be addressed during the H2020 timeframe, and make recommendations for optimising collaboration between Europe and China for IoT and 5G.


A simple signal-to-signal beat interference cancellation receiver based on balanced detection (ICRBD) with an interleaver, a 2 × 2 three-decibel optical coupler, and a balanced photodiode pair is proposed for a single-sideband optical orthogonal frequency division multiplexing (SSB-OOFDM) signal with a reduced guard band (GB). Simulation demonstration of the ICRBD for a 40 Gbit/s 16-QAM SSB-OOFDM signal with a reduced GB was achieved successfully. © 2013 Optical Society of America.


Wang C.,Beijing University of Posts and Telecommunications
Physical Review A - Atomic, Molecular, and Optical Physics | Year: 2012

We present an efficient entanglement concentration protocol (ECP) for electron spins based on quantum-dot and microcavity coupled systems. In our ECP, each two-electron spin system in a partially entangled state can be concentrated with the assistance of an ancillary quantum dot and a single photon, not two copies of two-electron spin systems. With current and near-future technology, the locally maximal entanglement of electron spins can be achieved, and our ECP can be used in long-distance quantum communications. © 2012 American Physical Society.


Zhu P.,Beijing University of Posts and Telecommunications
International Journal of Approximate Reasoning | Year: 2011

Rough set theory, a mathematical tool to deal with inexact or uncertain knowledge in information systems, has originally described the indiscernibility of elements by equivalence relations. Covering rough sets are a natural extension of classical rough sets by relaxing the partitions arising from equivalence relations to coverings. Recently, some topological concepts such as neighborhood have been applied to covering rough sets. In this paper, we further investigate the covering rough sets based on neighborhoods by approximation operations. We show that the upper approximation based on neighborhoods can be defined equivalently without using neighborhoods. To analyze the coverings themselves, we introduce unary and composition operations on coverings. A notion of homomorphism is provided to relate two covering approximation spaces. We also examine the properties of approximations preserved by the operations and homomorphisms, respectively. © 2010 Elsevier Inc. All rights reserved.


Patent
Beijing University of Posts and Telecommunications | Date: 2016-02-01

A method and a system for determining parameters of an off-axis virtual camera provided by embodiments of present invention can extract a scene depth map for each video frame from a depth buffer, determine the minimum value of edge depth values of the scene depth map as the closest scene edge depth of each video frame, determine the depth of a first object as the depth of an object of interest of each video frame, use the smaller value between the closest scene edge depth and the depth of an object of interest as the zero-parallax value and obtain a zero-parallax value sequence constituted by the zero-parallax value of each video frame. The present invention realizes automatic determination of the zero parallax of each video frame rather than manual setting thereof, and thus the determination will not be affected by factors such as lack of experience, and the amount of work for an technician is also reduced. Meanwhile, the present invention makes the zero parallax as close as possible to an object of interest without incurring the window occlusion problem, which can improve the stereo perception as much as possible while ensuring the comfortability, and can ensure the using effect of the determined zero parallax.


Patent
Huawei, Beijing University of Posts and Telecommunications | Date: 2015-06-09

Embodiments of the present invention disclose a node scheduling method, where the method includes: configuring, for a node, a working period matched with a performance indicator of the node, where duration of the working period is an integer multiple of duration of a super frame, and the super frame is a super frame corresponding to a beacon frame in a network in which the node is located; and sending, to the node, an updated beacon frame that includes information about the working period, so that the node acquires the information about the working period from the updated beacon frame, receives a working beacon frame, establishes a super frame corresponding to the working beacon frame until the working period ends, and then repeats the receiving a working beacon frame and establishing a super frame corresponding to the working beacon frame until the updated beacon frame is received again.


Patent
Beijing University of Posts and Telecommunications | Date: 2015-03-20

A device for controlling the fusion of a heterogeneous system, which receives a first data stream from a MAC layer of a WLAN through a LLC sub-layer and a second data stream from a MAC layer of a cellular network through a PDCP and a RLC sub-layer, and for fusing the first data stream and the second data stream into one data stream and transmitting the fused one data stream to a network layer. The device demultiplexes the data stream from the network layer into a third data stream corresponding to the MAC layer of the WLAN and a fourth data stream corresponding to the MAC layer of the cellular network, and transmits the third data stream to the MAC layer of the WLAN through the LLC and the fourth data stream to the MAC layer of the cellular network through the PDCP and the RLC sub-layer.


Patent
Beijing University of Posts and Telecommunications | Date: 2015-03-20

The present disclosure provides a wireless communication network system based on centralized control and content delivery, comprising a centralized controller, a core network data forwarding unit, a core network data cache unit, and at least one distributed base station. The centralized control and content delivery control can be performed by the wireless communication network system provided by the present disclosure. In this manner, the user experience can be guaranteed, the centralized control can be realized, and the load of the base station equipment can be reduced to the largest extent. At the same time, the data interaction between base station and internet can be reduced, and thus the occupancy of bandwidth resources can be reduced accordingly.


Patent
Beijing University of Posts and Telecommunications | Date: 2016-03-16

Embodiments of the present disclosure may provide a service transmission method and device. The service transmission method may include: determining, by a user terminal, whether a service of the user terminal is a service needing global cooperation; transmitting, by the user terminal, the service with a global Base Band Unit (BBU) pool mode if the service of the user terminal is the service needing the global cooperation; and transmitting, by the user terminal, the service with a non-global BBU pool mode if the service of the user terminal is the service, which does not need the global cooperation.

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