1843results about How to "Guaranteed service quality" patented technology

In a label switch communications network, a third level of label is employed in conjunction with a dynamic multiplex constraint-based routed label switched path (CR-LSP) in order to achieve implicit switching at nodes within the network. Implicit switching occurs when a switching function takes place at a node without the need for any control function being required at that node. A three-layer label stack provided at the edge of the network achieves end-to-end connection oriented behaviour with guaranteed Quality of Service. The use of the three-layer label stack concentrates the control of the network to the two edges of the network and a single central switching stage of the network.

A router has at least one outbound interface configured for establishing multiple IP-based secure connections (i.e., tunnels) with respective destinations based on transmission of encrypted data packets via the IP-based secure connections. The encrypted data packets are generated by a cryptographic module, where each encrypted packet successively output from the cryptographic module includes a corresponding successively-unique sequence number. The supply of data packets to the cryptographic module is controlled by a queue controller: the queue controller assigns, for each secure connection, a corresponding queuing module configured for outputting a group of data packets associated with the corresponding secure connection according to a corresponding assigned maximum output bandwidth. Each queuing module also is configured for reordering the corresponding group of data packets according to a determined quality of service policy and the corresponding assigned maximum output bandwidth.

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.

The present description relates to a method in which a station transmits data in a wireless LAN system, comprising the following steps: receiving, from an access point, control information containing station group configuration information, which indicates the configurations of station groups and uplink resource allocation information on the resource allocated to each station group; determining, on the basis of the control information, the station group to which the station belongs; and transmitting uplink data to the access point by contending with other stations in the determined station group.

An interworking network element, an interworking system between the CSI terminal and the IMS terminal and the method thereof, which relate to the communication technology, enable the CSI terminal and the IMS terminal to interwork and the effective bearing link to be established according to the actual requirement. The interworking network element CSI-IW is added at the network of the called side between the CSI terminal and the IMS terminal. The network element receives the session request from the IMS terminal, determines whether there is need to separate the IMS session including the real time media request and non-real time media request into the two IMS sessions including the real time media request and non-real time media request respectively, and chooses the CS domain or the IMS domain to end the call according to the attribute information of the session, the ability for accessing the network, the ability of the terminal etc, so that the real time session can be borne by the CS domain as possible as it can.

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.

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.

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.