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1835results about How to "Guaranteed service quality" patented technology

Apparatus, system, and method for managing quality-of-service-assured e-business service systems

One or more SLA-specified service-level monitors and/or one or more provider-owned service-level management monitors are used by the invention to monitor one or more quality measures of one or more QoS-assured service systems and to generate one or more service-level monitoring events when the monitored system does not conform to the respective quality measures. The invention includes a cross-SLA event manager that receives the monitoring events and determines which one or more SLA contracts are affected by the events. Then one or more SLA management objects (SMOs) track the SLA-specific events generated by the event manager according to each of the respective SLA contracts. The SMOs also determine how to allocate/deallocate/configure SLA management resources and/or to determine the effect of these changes on the service system operation to assure the contracted quality of service. A cross-SLA resource manager handles the SMOs' resource allocation requests and optimizes the allocation of available resources per the service provider's SLA management objectives. Finally, a SMO manager manages the execution of SMOs and facilitates the integration and management of service system testing-time and production-time activities.
Owner:IBM CORP

Method for setting multilayer satellite network system route

The present invention relates to a method for setting multilayer satellite network system route, including steps of: 1. setting parameters for the network initialization; 2. fixing a time, solving satellite orbit parameters in the interval of time, calculating the location coordinates of the satellite and the length of the link between stars, and establishing a network topological structure; 3. calculating the load of link between stars of the multi-layer satellite network; 4. calculating the process and exchange time delay on stars according to the queuing theory; 5. searching source satellite and object satellite of each satellite layer; 6. selecting the satellite layer for transporting services according to the communication service instruction requirement and network states, and searching an optimum route according to routing algorithm. Relative to traditional stationary orbit satellite, the present invention has small transmission delay, and high validity. The system has advantages of more flexible routing, effective guaranty of service quality, multiple replaceable chain circuits, stronger survivability, a capacity of processing and exchanging on star, optical or microwave links between stars, and capability of providing wideband synthetic service for users in global scope.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Network with a plurality of access networks and access and switching method

The invention relates to a network with a plurality of access networks, which comprises a core network, a plurality of wireless access networks and terminals which are distributed in a coverage region of the wireless access networks, the coverage regions of a plurality of wireless access networks have overlapped regions, the center of the core network is provided with a switch strategy server, the terminals are provided with a switch strategy managing device, and the switch strategy managing device and the switch strategy server in the core network are wirelessly connected by any wireless access network. The invention further provides an access and switching method of the terminals in the network. The network and the method have the advantages that by setting the switch strategy server and carrying out the corresponding access and switching method, when various access networks are fused to build the network, a multimode terminal can select an optimum access network in the network overlapped regions, thus guaranteeing the loads of different access networks in the system to be balanced as much as possible, effectively utilizing the network capacity and resources and guaranteeing the quality of service when the terminals are used.
Owner:SHANGHAI DINGZHU COMM TECH

Method for establishing D2D multicast communication and allocating wireless source thereof in IMT-A system

A method for establishing D2D multicast communication and allocating wireless source thereof in the IMT-A system is used for the data communicating service based on local sharing in the system. The multimedia multicast technology is introduced into the D2D technology for solving the high-speed data sharing request of one mobile terminal on multiple mobile terminals to realize the eNB-assisted D2MD communication under the IMT-A honeycomb network. The method comprises a control signaling interactive progress of the eNB and the D2MD group in the communication establishing process and a wireless source allocating progress of the eNB for the D2MD group. The method for establishing the D2D multicast communication and allocating wireless source thereof in the IMT-A system has the advantages of reducing the eNB load under the IMT-A, and greatly improving the spectral efficiency and throughput capacity of a cell as the D2MD can reuse the spectral source under the premise of not affecting the communication of honeycomb users. The wireless source allocating progress of the eNB for the D2MD comprises three steps of mode selecting, spectrum allocating and power controlling. The method aims at the applying requests of the D2MD users, ensures the QOS (quality of service) of all users as much as possible, is simple in operation, clear in algorithmic logic and low in complexity, and has better promoting and applying prospects.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Internet protocol (IP) over wavelength division multiplexing (WDM) network energy-aware routing method based on multipriority business

The invention relates to an internet protocol (IP) over wavelength division multiplexing (WDM) network energy-aware routing method based on multipriority business. The IP over WDM network energy-aware routing method is used for achieving energy saving of an optical network under different QoS constraint conditions of dynamic business. According to the method, the business is divided into different grades. For low-priority business, a Dijkstra algorithm is improved to achieve energy saving by combining an optical bypass and a business volume guidance technology and enabling energy consumption to serve as link weight; and for high-priority business, routing is performed with an optimal path forecasting function serving as a routing standard, a flow partition mechanism and a link weight dynamic adjustment mechanism are integrated while network energy consumption is reduced so as to guarantee the requirements of the business for time delay, packet loss rate and blocking rate. Compared with the prior art, different routing methods can be designed according to priority level of the business, energy-saving efficiency of the network is improved on the premises that a certain service quality is guaranteed, and energy saving of the multipriority business in the IP over WDM network is achieved comprehensively.
Owner:TONGJI UNIV

Routing method in vehicle wireless communication network and vehicle wireless communication network

The invention discloses a routing method in a vehicle wireless communication network. The method disclosed by the invention comprises the following steps: route establishment: carrying out a route request and a route response, establishing a fixed node at the crossing, namely an anchor point and establishing an anchor point route on the anchor point; route transmission: carrying out the route transmission by adopting the adaptive broadcasting based on a chain prediction mechanism and a transmission algorithm based on the chain prediction mechanism; and route maintenance. The invention also discloses the vehicle wireless communication network. In the vehicle wireless communication network disclosed by the invention, a wireless communication module loading a special short-distance communication protocol is installed on each vehicle to jointly form a distributed ad hoc network; each vehicle forms a node; a fixed static wireless node is installed at the crossing; the static wireless node serves as the anchor point through the wireless communication module loading the special short-distance communication protocol and is used for assisting the node communication on the route or collecting the information of the crossing; and the anchor point and the nodes on the road jointly form the vehicle wireless communication network.
Owner:CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD

Network system and method for guaranteeing multi-type service quality

The invention discloses a network system and a method for guaranteeing multi-type service quality. A service perception module and a pre-labeling module are arranged in a source host and used for perceiving sent service data packets and pre-labeling the grouped data packets with different semantic priorities for sending according to the perception information when a network layer is encapsulated.An edge router and a core router are provided with a multi-service agent respectively. The edge router is also provided with an acceptance controller for mapping the semantic priorities of the service data packets into network priorities and distributing the service data packets to the corresponding service agents. The homogeneous service agents in all the routers are interconnected to form virtual topologies, and each virtual topology is provided with an independent routing table for routing selection of the service data packets of different priorities on the corresponding virtual topologiesrespectively. Service routing of high priority is guaranteed, and influence on low priority services is reduced as much as possible; and the invention also provides a method for setting link weights,which distributes the network traffic to each link more uniformly and improves the throughput rate.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Unmanned aerial vehicle trajectory optimization and resource allocation method

The invention relates to an unmanned aerial vehicle trajectory optimization and resource allocation method. The method comprises the following steps: S1, modeling an unmanned aerial vehicle trajectoryoptimization and resource allocation problem based on an unmanned aerial vehicle base station system; S2, planning an unmanned aerial vehicle trajectory optimization and resource allocation problem to ensure the fairness of unmanned aerial vehicle service for each user; S3, jointly optimizing the bandwidth and the power of the unmanned aerial vehicle under the condition of giving the track of theunmanned aerial vehicle; S4, optimizing the trajectory of the unmanned aerial vehicle under the condition of given bandwidth and unmanned aerial vehicle power; S5, comprehensively considering the S3and S4, and solving the problems of unmanned aerial vehicle trajectory optimization and resource allocation. According to the invention, the service quality of edge users, users blocked by obstacles and the like can be improved; bandwidth, power distribution and flight path of the unmanned aerial vehicle are optimized at the same time, so that the bandwidth, the power distribution and the flight path of the unmanned aerial vehicle are matched with one another, and communication efficiency of a communication system is greatly improved under limited communication resources.
Owner:GUANGDONG UNIV OF TECH

Global migration manager, gateway, virtual machine migration system and method thereof

The invention provides a global migration manager, a gateway, a virtual machine migration system and a method thereof. The business continuity and the cloud service quality are ensured in the migration among different subnets. The global migration manager comprises a memory used for storing a virtual machine information management table of global unique virtual machine identification information; a virtual machine migration controller which is used for receiving a virtual machine migration request and notifying a source subnet to migrate a virtual machine in the source subnet to a target subnet and is further used for receiving a virtual machine migration completion notification, updating the virtual machine information management table and generating a virtual machine destination address transition request according to the global unique virtual machine identification information, a network address of the virtual machine before the migration and a network address of the virtual machine after the migration; and a gateway controller used for sending the generated virtual machine destination address transition request to each gateway and sending a false ARP update request message to the gateway of the source subnet. By adopting the technical scheme, the business continuity and the cloud service quality are ensured.
Owner:HITACHI LTD
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