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

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.

A packet processing device has a search engine module including an associative memory for transferring a packet on the basis of an entry mapping to route information, a first processor taking charge of a pre-search process before a process of the packet to the search engine module, and a second processor taking charge of a post-search process for executing a process of routing the packet on the basis of a search result of the search engine module. In this architecture, the packet processing device further has a table used for transferring and receiving information between the first processor in charge of the pre-search process and the second processor in charge of the post-search processor, and identifying information in a specified field of the table is transferred through the search engine module as a transparent medium.

A scalable medium access control (“MAC”) module is provided that avoids conflict resource reservation so that network performance does not degrade as the number of hops or nodes in a wireless network increases. The MAC also provides different access schemes for traffic with different quality of service (“QoS”) requirements such that QoS is guaranteed and network resources are efficiently utilized. Furthermore, the resource allocation scheme determines the routing path as resources is allocated for data traffice, thereby achieving more robust layer-2 routing at the MAC layer. Finally, the scalable MAC is compliant with both WiMedia MAC and IEEE 802.15.3 MAC.

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 method facilitates providing appropriate quality of service guarantees to a plurality of virtual hosts on a single physical host computer. A server application program and its child processes service communication requests made to the plurality of virtual hosts. Quality of service parameters associated with the virtual hosts are stored. Communication requests made to a specific one of the virtual hosts are detected. The quality of service parameters associated with the specific virtual host are obtained. Operating system resources are utilized to guarantee, to a child process of the server application program, a quality of service according to the obtained quality of service parameters associated with the virtual host. Communication between the virtual host and the client is allowed to proceed, the communication being managed by the child process.

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.

In order to guarantee service quality for a terminal for a particular point-to-multipoint service, a broadcast or multicast radio terminal system is characterized in that after the corresponding session is complete, information regarding the data that the terminal did not properly receive is informed to the UTRAN, and then the corresponding data is received upon re-transmission from the UTRAN.

The embodiment of the invention discloses a method for responding to service requests of users in a content distribution network, which comprises the following steps that: the service requests sent by user terminals are received; the service requests are used for requesting address information of content distribution nodes; the information of link state between the user terminals and the content distribution nodes in the CDN is obtained; according to the information of link state, the content distribution nodes meeting preset conditions with the user terminals are selected; the address information of the selected content distribution nodes is returned to the user terminals. The embodiment of the invention also discloses a content distribution system and load balancing equipment. By adopting the method, the system and the equipment of the invention, the service quality of the CDN system can be improved.

The invention discloses a mobile edge computing task unloading method in a multi-user scene, and relates to the processing technical field of mobile computing systems. The invention aims to reduce response time delay and energy consumption of a mobile device. The multi-user scene is multiple mobile devices and an MEC server which are connected. Each mobile device can select one of multiple channels between the mobile device and the MEC server to perform communication. The MEC server is connected with a center cloud server through a backbone network. The method specifically comprises the following steps: constructing a multi-user scene task unloading model; and performing a two-stage task unloading strategy based on a game theory: the first stage unloading strategy is as follows: determining whether unloading is executed on the mobile device or on the MEC server, and the second stage unloading strategy is as follows: while MEC server resources are insufficient, determining whether to wait on the MEC server or execute on the center cloud server. The method is capable of, under the precondition of guaranteeing service quality and fairness of a user, considering personal requirements of the user.

A label switched path is determined in a communications multi-service network comprising a plurality of nodes interconnected via quality of service capable tunnels to provide a QoS guarantee for a session in which resource availability from the network edge to multiple central stages and resource availability from the multiple central stages to the destination edge are established. A series of quality of service capable tunnels is selected by offering a plurality of candidate central stages to the destination edge and allowing the destination edge to select a complete path across the network. A label stack comprising a set of four labels is attached to a payload to define a selected sequence of tunnels.

A method and apparatus for performing cell selection is provided. The apparatus includes a memory configured to store basic priorities of a plurality of frequencies, and a processor configured to measure the signal strength of at least one cell in at least one of the plurality of frequencies, and perform cell selection based on an overrided priority if a cell with a highest measured signal strength is a closed subscriber group (CSG) cell and the highest measured signal strength is greater than a CSG threshold. When the quality of a serving CSG cell deteriorates, another cell from a different frequency may be selected.

An embodiment of the invention discloses a method and a device of distributing resources. The method of distributing the resources comprises the following steps of: receiving a request for distributing the resources for a first business; judging whether the residual resource in a resource pool is smaller than a threshold; if the residual resource in the resource pool is smaller than the threshold, recycling some resources occupied by a second business, wherein after some resources occupied by the second business are recycled, the resources occupied by the second business are not less than reserved resources of the second business, and the reserved resources are least resources divided for the second business in advance; and distributing some recycled resources occupied by the second business to the first business. In the embodiment of the invention, after request for distributing the resources is received, if the residual resource is insufficient, the resources occupied by the business can be adjusted in real time and the resources are distributed according to the business request; through linkage of the business requirement and the resource pool, the service quality is guaranteed and the utilization rate of the resources is improved.

A method and system are disclosed for providing voice communication over a packetized network in which quality of service is guaranteed for voice communications. The method involves identifying reserved paths within the network, such as multi-protocol label switching paths. When a call is made, the identified reserved paths are evaluated to determine whether each contains sufficient bandwidth for the requested voice communication. The effective bandwidth for the call is estimated based on the codec used for the call, the service class parameter set from the caller's user profile, the time of day, and other parameters. A priority parameter is set for the requested voice communication, which may be based on the service class parameter, and is mapped to a specific Differentiated Service Code Point (DSCP) and 802.1p service class parameter. If the reserved path is determined to contain sufficient bandwidth, the requested voice communication is transmitted over the reserved path at the set priority. If the path does not contain sufficient bandwidth, an error message is sent to inform the caller that QoS can not be guaranteed for the call, and a decision is made whether the call should proceed nevertheless.

A method of operating in a network in which stations communicate over a shared medium is described. The method provides regularly repeated contention free intervals, CSMA communication during times outside the contention free intervals, and distributed control over the initiation and makeup of the contention free intervals to a plurality of stations so that any of the plurality of stations can independently initiate transmission within the contention free interval.

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 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.

A method for forwarding packets in handover between base stations (eNBs) is provided. A source eNB confirming handover success sends control data indicating an EOD of a forwarding packet to a target eNB when there are no more packets to be forwarded to the target eNB, and the target eNB receiving the control data recognizes from the control data that there are no more packets to be forwarded from the source eNB, thus preventing delay in the handover between the eNBs.

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.

The invention relates to a communication switching method among different networks, which comprises the following steps of: sending a request for establishing a second link to a core network by a terminal through an access control device of a second network; and after completing the establishment of the second link, sending a request for releasing a first link to the terminal by the core network through an access control device in a first network. The invention has the advantages of providing and solving the technical problem of the processing of seamless switching of a multi-mode terminal between a WLAN (Wirele Local Area Network) network and a mobile wireless network in the prior art, and guarantees service quality and service experience of users during roaming. The invention provides a novel implementation system and method according to international standards of 3GPP (The 3rd Generation Partnership Project), 3GPP2, RFC (Request for Comments) and the like, which have easy implementation and capability of scale commercial popularization.

The invention provides a distributed resource scheduling method and system. The method comprises the steps of allocating tasks to a corresponding priority waiting queue according to assessed priorities of new task processing requests; according to the priority waiting queue obtaining the tasks, selecting a current scheduling queue; and according to the selected scheduling queue, calling a resourceallocation policy to allocate available distributed node resources. The system comprises a queue manager, a queue scheduler, a task monitor and a resource allocator. According to the technical schemeprovided by the distributed resource scheduling method and system, the total task completion time cost and the total task completion cost is effectively balanced according to a user demand; the resource utilization rate is improved; the task execution efficiency is improved; the service quality is guaranteed; and the user satisfaction is improved.

The invention discloses a dynamic bandwidth resource allocation method and system, which considers the differences of brandwith, time delay, priority level in different business, ensures the service quality of business, solves contradictions between the efficient use of brandwith and the service quality more efficiently, at the same time sloves the problem of the uniform DBA scheduling mechanism in diversified user terminal, and meets the service quality request of 'three nets in one'.

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 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.

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.

A system and method for transmitting packet data to a hybrid mobile terminal upon inter-system handoff is provided. The terminal communicates with High Rate Pack Data (HRPD) and voice mobile networks. A Packet Control Function (PCF) system converts received data for transmission to the terminal into Generic Routing Encapsulation (GRE) packet data, stores the GRE packet data combined with a GRE packet key in an active queue, transmits it to an access network, and stores packet data stored in the active queue in a dormant queue when receiving a link release message from the access network. The access network converts GRE packet data received from the PCF system into an Radio Link Protocol Data (RLP) packet, stores it in combination with a GRE packet sequence number, and transmits it to the terminal. When detecting air link loss with the terminal, the access network creates and transmits a link release message including a GRE packet sequence number that has not been transmitted to the terminal.

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.

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.