33 results about "Qos assurance" patented technology

Systems and methods are described for supporting Quality of Service assurances for communication by and between software applications over a best-efforts networks. Characteristic signatures are generated and referenced to segregate traffic on the network into discrete flows. Traffic engineering protocols, such as MPLS, are used to generate discrete paths in the best-efforts network, and flows are routed on such paths based on pre-set policies. The state of individual paths and the network at large are continuously monitored in order to re-map flows on paths and maintain the QoS assurances.

The present invention discloses a system and a method of dynamic QoS negotiation in NGN. The Resource and Admission Control Subsystem (RACS) provides intercommunication interfaces with Transport functional (TF) entity, Service Control Functional (SCF) entities, and Network Attachment Subsystem (NASS), and thereby, when a user terminal in NGN is to develop a service with QoS requirement, the RACS can obtain the QoS requirement parameters of a service, determine the admission control decision parameters in accordance with the QoS requirement parameters, and the RACS send the determined admission control decision parameters to the TF entity for execution, such that the QoS assurance for the service is realized. The present invention allows an end-to-end QoS negotiation in NGN in accordance with the availability of current transport network resources, and thereby can effectively improve the transport resource utilities. Therefore, the present invention can effectively ensure QoS of service transported in NGN.

The invention provides an OpenFlow network flow control method for the QoS assurance of an application. The OpenFlow network flow control method comprises the following steps that: a user requests a service from a server; the server sends a QoS request message to an SDN controller; after receiving the message, the controller calculates an optimal transmission path for the server according to a network resource use condition and reserves a resource; and simultaneously, the transmission state and the network link condition of the server are monitored when the server transmits a QoS data flow, such that a QoS flow is transmitted reliably and stably. A required network resource is provided for an application service by strictly assuring the QoS transmission of the application service and utilizing the service difference to network resource requirements; therefore, the QoS of the application is effectively ensured; and simultaneously, the network resource is utilized effectively.

The invention relates to the technical field of wireless communication, and discloses a service shunting system and a service shunting method based on feedback information under a heterogeneous network. The invention combines a quality of service (QoS) requirement of a service and bearing capacity of a wireless network, and provides a shunting strategy based on QoS assurance so as to regulate service shunting scaling factors in the heterogeneous network, therefore a service demand and a heterogeneous wireless network resource are dynamically matched, service quality which is accepted by a user is guaranteed, and resource utilization efficiency of the wireless network is maximized.

A method and apparatus where network-layer devices use host-provided, detailed, per-packet, semantic information (DPPS information), which describes the content, meaning, importance, and / or other attributes of particular application data and is associated with each packet, to provide enhanced network services. In some embodiments of the above method, network-layer devices use DPPS information that includes QoS-related information to provide fine-grained, content-aware, and / or complex QoS assurances or similar services. In some embodiments, network-layer devices use DPPS information to provide network-based, application-protocol-independent, rate-adaptation services. In some embodiments, network-layer devices use DPPS information to provide highly efficient, application-protocol-independent, publish / subscribe dissemination services.

The invention discloses a method for classifying and isolating information based on integrated network security service architecture, which is characterized in that the traffic, control and management information in the network is classified and isolated; and all classes of data carry out independent routing switching and transmission in the network, have independent bandwidth resources and corresponding QoS assurance measures and have own channels without interference. The method has the following positive effects: the signaling system and the network management system operate relatively independently in the network and are not affected by the traffic flow and the mal-form packets, therefore, implementation of the systems can be effectively controlled even if the network traffic suffers from severe jamming, and meanwhile, the system messages are avoided from taking over the traffic bandwidth so as to affect the service quality of the traffic.

The present invention relates to the broadband access network and the method of the QoS Assurance. The main technical proposal of the present invention is that a corresponding ARM (access resource manager) is arranged in the broadband access network. Corresponding logical channels are respectively established between a broadband assess server and all users access equipment. The unified management is processed by the ARM (access resource manager) to the broadband resources of all logical channels. So the QoS assurance can be provided to the transmitting business in the broadband access network according to the wideband resource conditions of each logical channel. The present invention can lead a broadband network operator to support the QoS assurance to a real-time service in the broadband access network range and to distribute the broadband resources to the corresponding businesses according to needs. At the same time, in the present invention, the operator can provides more kinds of services through a signal network, reduces the cost owned by the whole network and creates the biggest value.

Disclosed is a technique so arranged that, after handover, a mobile terminal can promptly and continuously accept an additional service (for example, QoS assurance), the mobile terminal has accepted before the handover. With this technique, when the mobile terminal (MN 10) carries out the handover, the MN selects, as a proxy, a node (QNE (proxy) 68) having NSLP for QoS, which exists in the vicinity of an AR (access router) 31 pertaining to a subnet 30 which is a movement destination of the MN (near an AR in a network configuration), and transmits, to this proxy, a message including a flow identifier and a session identifier, which are related to a path 24 established with respect to a CN 60 before the handover. This proxy transmits a message including these flow identifier and session identifier to the CN for, on the basis of a response result to this message, establishing a new path 34 and finding a crossover node at which two paths start to intersect with each other.

The invention is suitable for the network communication field, and provides a communication service QoS (Quality of Service) assurance method in NAT (Network Address Translation) scene. The method comprises the following steps: an A-BGF (Access-Border Gateway Function) network element is controlled to generate agent SDP (Session Description Protocol) information according to calling SDP information when a user terminal issues a communication request, the SDP information is utilized to replace the calling SDP information to connect the user terminal and a called party, after the two communication parties are successfully connected, a PCRF (Policy and Charging Rules Function) network element is informed to conduct QoS resource reservation, an IP (Internet Protocol) address and a port of the user terminal, which are converted by NAT, from the A-BGF network element, are received, and the PCRF network element is informed to update the source address information of the QoS resource reservation to the IP address and the port of the user terminal, which are converted by NAT. The invention realizes communication service QoS assurance in NAT scene under the premise that the interface of the user terminal is not specially required.

A proxy server and a hierarchical network system and a distributed workload management method. According to one embodiment of this disclosure, the proxy server includes: a rate controller configured to, based on measured request-related information and service quality parameters relative to service levels of requests, periodically determine a dispatch rate for requests of each service level, wherein the sum of the dispatch rate for respective service levels is less than or equal to a predetermined rate; and a request dispatcher configured to dispatch the requests of the corresponding service level in accordance with the dispatch rate determined by the rate controller. One aspect of the disclosure realizes a low overhead, highly scalable, simple and efficient workload management system to achieve QoS assurance and overload protection.

The invention discloses a deep-space network routing method with a QoS (Quality of Service) assurance, and solves the problem in the prior art that deep-space network service requirements can not be satisfied. The method particularly comprises the following steps: acquiring all link information in the network at first, correcting the communication time slots, then bringing link transmission time delay and link transmission rate into consideration to calculate the transmission time slots, and finally, calculating the path time delay according to the path transmission time to select the minimal path as the optimal path. By adopting the method, the calculated and acquired path time delay is more accurate, the selected optimal path has the shortest time delay, and the QoS requirement for the time delay of the service can be satisfied while the service throughput is guaranteed; and the service transmission time can be set more reasonably, the data transmission blindness is small, the probability of false transmission due to disconnection of links when data is transmitted on the links is low, and the network performance is improved.

The present invention discloses a system and a method of dynamic QoS negotiation in NGN. The Resource and Admission Control Subsystem (RACS) provides intercommunication interfaces with Transport functional (TF) entity, Service Control Functional (SCF) entities, and Network Attachment Subsystem (NASS), and thereby, when a user terminal in NGN is to develop a service with QoS requirement, the RACS can obtain the QoS requirement parameters of a service, determine the admission control decision parameters in accordance with the QoS requirement parameters, and the RACS send the determined admission control decision parameters to the TF entity for execution, such that the QoS assurance for the service is realized.The present invention allows an end-to-end QoS negotiation in NGN in accordance with the availability of current transport network resources, and thereby can effectively improve the transport resource utilities. Therefore, the present invention can effectively ensure QoS of service transported in NGN.

The invention relates to an information transmission network used in traffic information system. Wherein, it uses the cable along road, uses inactive optical network technique, accesses into real-time traffic informant on road, and supplies relative Qos assurance; based on the topology character of road, changing the optical distribution network into point-to-multipoint bus structure, building traffic information transmission network; the network in inactive optical network, at each OLT / ONU, it has initial network manage ability; the traffic information collected by OLT can be accessed into traffic information special network, at the junction of system, to be managed and processed.

The invention discloses a method for assuring quality of internet service based on time granularity; by adding a delay-control extension header which is used for recording state information of a data packet into a packet head of the real-time service data packet, a relative time-limit mark in the real-time service data packet is set by an edge route according to a current token number; according to the received relative time-limit value of the data packet, the data packet is distributed into delay queues with different granularity by a core route; the data packet in the queues is sent in sequence; by the method of sending a real-time service test data packet , the edge route can measure a congestion degree of the network, thereby making a decision whether to receive a new call. The invention can well ensure an end-to-end delay of the data packet and has low computational complexity in the core route, which improves the service quality and has strong expansibility at the same time.

The invention discloses a long distance CSMA / CA (Carrier Sense Multiple Access with Collision Avoidance) protocol with QoS (Quality of Service) assurance, a node in a communication channel executes the following steps: (1) entering a backoff stage after sending of the previous data packet is finished in a sending queue; (2) according to priority conditions of the data packets in the existing sending queue, extracting the data packet with the highest priority and arranging the extracted data packet at the head of the sending queue; (3) calculating a channel busy-to-idle ratio and a priority threshold corresponding to the data packet of the head of the sending queue; (4) after the backoff stage is ended, detecting the busy-to-idle ratio of the current channel, and comparing the priority threshold corresponding to the data packet of the head of the sending queue with the busy-to-idle ratio of the current channel, if the busy-to-idle ratio of the current channel is less than the priority threshold corresponding to the data packet, enabling the data packet to be accessed to the channel and sending the data packet, and returning back to the step (1). According to the long distance CSMA / CA protocol with QoS assurance provided by the invention, performance requirement of the data packet with high priority is satisfied through delay of access of the data packet with low priority, and hereby, a collision probability is reduced and a throughput is improved.

The invention discloses a policy control method and system for realizing BBF (Broadband Forum) access. The policy control method comprises the steps of: setting an FMC PF (Fixed Mobile Coverage Policy Function) in a mobile network where a user requests to access currently; after the FMC PF receives a triggering message from an ePDG (Evolved Packet Data Gateway), requesting for establishing a policy control session to a BPCF (Broadband Policy Control Framework); and performing reception control by the BPCF according to a QoS (Quality of Service) message sent from the FMC PF through the policy control session. It can be seen from the implementation of the method disclosed by the invention that when the UE accesses to 3GPP (Third Generation Partnership Project) through the BBF, the FMC PF senses the triggering message from the ePDG so that a request of policy session initiated from a PCRF (Policy and Charging Rules Function) of the 3GPP access network where the UE accesses currently to a BPCF (Broadband Policy Control Framework) is triggered. Thus, in case that a BBF access network fails in sensing the access of the UE or does not support 3GPP-based access authentication in the current architecture where the UE accesses into the 3GPP core network through the BBF access network, the QoS control on the UE access is realized, and consequently, QoS assurance is provided for the whole transmission path of the data.

The invention discloses an authentication method for network security access and an authentication system for implementing the method. Multi-tuple binding of an access user is realized in a Web authentication way on a network access layer, and checking and setting for a DSCP (Differentiated Services Code Point) value of a user IP (Internet Protocol) message is realized. The authentication method is based on Web authentication of multi-tuple binding, more suitable for various network access environments and application safety demands, simple in internal state, and convenient for trouble shooting and system stability improvement. In conjunction with Web authentication of multi-tuple binding of QoS (Quality of Service) level assurance, the problems of irregular DSCP value or DSCP value cheating and the like in the network IP message are solved effectively, and an Internet service provider can provide IP QoS assurance for various services more easily.

A method and system for controlling home gateway policy are disclosed. The method comprises: a Resource and Admission Control Function (RACF) entity sends down a policy to a home gateway, and the home gateway performs a policy execution for an uplink packet passing through the home gateway according to the policy received. With the policy control method and system of the present invention, the policy is sent down to the home gateway through the RACF, Quality of Service (QoS) control is made for the uplink packet passing through the home gateway before Bandwidth Remote Access Server (BRAS), effective QoS assurance is provided for the uplink packets before arriving at the BRAS, and meanwhile, the problem of heavy load of a convergence layer of a metropolitan area network in the prior art is solved.

System and method for providing data transport Quality of Service (QoS) assurances in homogeneous and heterogeneous communication networks consisting of one or more communication interface types. The system includes Subnet Managers for managing the resources of nodes within the subnets and Flow Managers for managing the communication flows between the nodes. A Real-time Reservation Transport Protocol (RRTP) establishes the resource reservations and QoS transport services for the communication flow payload over the reserved paths. The communication flows are protected against topological variations in the network, such as from node mobility. QoS assurances are also provided to secure communication flows through interoperation with security protocols, such as Internet Protocol Security (IPsec), or encryption devices, such as High Assurance Internet Protocol Encryptor (HAIPE).

There is disclosed a technique for allowing a mobile terminal that has been handed over to quickly and continuously receive an additional service (e.g., QoS assurance) that had been received before the handover. According to the technique, when being handed over, a mobile terminal (MN) (10) selects, as a proxy, a node (QNE) (proxy) (68) that is located near a network AR (access router) (31) belonging to a subnet (30), into which the MN is moving, and that has an NSLP for the QoS. The MN then transmits, to the proxy, a message including a flow identifier and a session identifier that are related to a path (24) established with a CN (60) before the handover. The proxy transmits, to the CN, a message including these flow and session identifiers, then establishes, based on the result of a response to this message, a new path (34), and then finds a crossover node at which the two paths are joining.

The invention relates to a video conference access QoS (Quality of Service) assurance method based on an IMS network. The video conference access QoS assurance method comprises the following steps: an upper architecture is set up; a QoS level re-positioning functional module is newly increased in the upper architecture; with the help of a parameter, namely a service flexibility bit, different priority levels are set for different services including voice, videos and data in a video conference by utilization of the module; a lower architecture aggregates priority level information of the upper architecture through a multi-protocol label switching network, maps the priority level information into different labels, and performs data forwarding according to the labels; and the upper and lower architectures are mutually connected into a whole, so that a MPLS-based IMS network QoS overall architecture is obtained. The video conference access QoS assurance method disclosed by the invention has the advantages that: a PCC architecture in an original IMS is improved; therefore, flexible and dynamic QoS assurance can be realized; simultaneously, network resources are optimized; effective bearing is realized through a MPLS technology; the packet forwarding rate is increased; and the QoS is ensured.

A proxy server and a hierarchical network system and a distributed workload management method. According to one embodiment of this disclosure, the proxy server includes: a rate controller configured to, based on measured request-related information and service quality parameters relative to service levels of requests, periodically determine a dispatch rate for requests of each service level, wherein the sum of the dispatch rate for respective service levels is less than or equal to a predetermined rate; and a request dispatcher configured to dispatch the requests of the corresponding service level in accordance with the dispatch rate determined by the rate controller. One aspect of the disclosure realizes a low overhead, highly scalable, simple and efficient workload management system to achieve QoS assurance and overload protection.

A multi-services IP bearer system having QoS assurance and the implementing method thereof, it includes at least : a switching function unit, which supports the resource scheduling and isolation, and support to match the specific service with the specific network resource and forward the specific service using the specific network resource; and resource control function unit, which controls and manages the resource scheduling of switching function unit, and downward-transfer the resource scheduling and the allocation rule as well as the mapping relation of the resource and the service to switching function unit. The logic networks loaded service by the bearer system are separated each other, QoS of various services is not affected from other services, and it can receive QoS feedback of the service network, schedule the resource in the IP bearer system, and improve the QoS assurance for services.

The disclosure includes a method for establishing a connection with QoS assurance. In the method, a router receives a first IPv6 packet for establishing a first connection, wherein the first IPv6 packet includes a first QoS requirement for the first connection in a hop-by-hop extension header of the first IPv6 packet. Then, the router modifies the first IPv6 packet by setting first information in the hop-by-hop extension header of the first IPv6 packet, where the first information indicates that the router meets the first QoS requirement. Furthermore, the router sends the modified first IPv6 packet to a second router based on a destination IP address of the modified first IPv6 packet.

The invention discloses a service-oriented intelligent vehicle vehicle network QoS guarantee method: topology discovery is performed when the vehicle is started, and parameter import of each node in the vehicle electronic and electrical architecture and vehicle network is completed; service and QoS demand registration is performed; when the application layer subscribes to the service Read QoS requirements; calculate and allocate network resources for subscribed services according to QoS requirements, formulate and issue corresponding forwarding and scheduling policies, and complete static configuration; update nodes and give feedback when QoS requirements are changed or added Node information, while calculating whether the remaining network resources in the network meet the changed or newly added QoS requirements; if so, send the configuration file and establish a connection; if not, renegotiate with the previously configured network resources , if the negotiation is successful, reconfigure the vehicle network resources while sacrificing part of the non-real-time stream, generate the corresponding configuration file to update the network configuration and nodes, and establish a connection; if the negotiation fails, a warning will be issued.

The present invention is applicable to the field of network communications, and provides a method for guaranteeing QoS of a communication service in a NAT scenario, including: when a user equipment initiates a communication request, controlling an A-BGF network element to generate proxy SDP information according to calling party SDP information, and replacing the calling party SDP information with the proxy SDP information to establish a connection between the user equipment and a called party; after a connection between both communication parties is successful, instructing a PCRF network element to perform QoS resource reservation; and receiving a NAT-translated-to IP address and a port of the user equipment from the A-BGF network element, and instructing the PCRF network element to update source address information for the QoS resource reservation to the NAT-translated-to IP address and the port of the user equipment. The present invention achieves QoS guarantee of a communication service in a NAT scenario without imposing any special interface requirement on the user equipment.

The invention discloses a method for classifying and isolating information based on integrated network security service architecture, which is characterized in that the traffic, control and management information in the network is classified and isolated; and all classes of data carry out independent routing switching and transmission in the network, have independent bandwidth resources and corresponding QoS assurance measures and have own channels without interference. The method has the following positive effects: the signaling system and the network management system operate relatively independently in the network and are not affected by the traffic flow and the mal-form packets, therefore, implementation of the systems can be effectively controlled even if the network traffic suffers from severe jamming, and meanwhile, the system messages are avoided from taking over the traffic bandwidth so as to affect the service quality of the traffic.

The invention discloses a deep-space network routing method with a QoS (Quality of Service) assurance, and solves the problem in the prior art that deep-space network service requirements can not be satisfied. The method particularly comprises the following steps: acquiring all link information in the network at first, correcting the communication time slots, then bringing link transmission time delay and link transmission rate into consideration to calculate the transmission time slots, and finally, calculating the path time delay according to the path transmission time to select the minimal path as the optimal path. By adopting the method, the calculated and acquired path time delay is more accurate, the selected optimal path has the shortest time delay, and the QoS requirement for the time delay of the service can be satisfied while the service throughput is guaranteed; and the service transmission time can be set more reasonably, the data transmission blindness is small, the probability of false transmission due to disconnection of links when data is transmitted on the links is low, and the network performance is improved.