Abstract:
A method, device, and system for admission control in a Metropolitan Area Network (MAN) are provided. The method includes: converging resource reservation requests from users, in which the resource reservation requests contain bandwidth values to be occupied; and determining whether a total bandwidth value in the converged resource reservation requests is larger than a preset bandwidth threshold of a transmission path; if yes, controlling to establish a new transmission path using an identifier (ID) number of the transmission path originally distributed by the system, in which a bandwidth value of the newly established transmission path is larger than the total bandwidth value in the converged resource reservation requests, and the total bandwidth value is a sum of bandwidth values to be occupied for data transmission in the converged resource reservation requests. Therefore, a bandwidth of a transmission path is dynamically adjusted by keeping an ID number of the original transmission path, which effectively utilizes resources of a MAN, ensures quality of service (QoS) of transmission thereof, and decreases burden of the network.
Abstract:
A signalling exchange method for guaranteeing Internet Protocol (IP) Quality of Service (QoS), including: after a Call Agent (CA) receives a request from a source User Agent (UA) for transferring a user service stream, sending a QoS resource request from the CA to the bearer control layer; allocating resources for the user service stream on the bearer control layer, and carrying out flow mapping for an Edge Router (ER) according to the resource allocation result; after receiving a flow mapping command, the ER allocating a bearer path for the user service stream based on the allocated resources, and transferring an execution result to the CA via the bearer control layer.
Abstract:
An operation indication method is provided, which includes the following steps. After receiving a trigger message, an application function (AF) entity determines an operation indication, in which the operation indication includes indicating a quality of service (QoS) resource reservation operation and/or a network address translation (NAT) control operation; the AF entity sends the operation indication to a service-based policy decision function (SPDF) entity; and the SPDF entity receives and identifies the operation indication and performs a corresponding operation according to the operation indication.
Abstract:
Embodiments of the present invention disclose a method for guaranteeing end-to-end Quality of Service (QoS), including: establishing in advance a corresponding logic bearer layer for each network, and storing information of the logic bearer layer in a bearer control entity of the bearer control layer of each network; initiating a service request from a first user terminal to a first network, requiring to set up a service session with a second user terminal of a second network; both the bearer control entities of the first network and the second network allocating service paths and bandwidth resources within logic bearer layers and upon boundary exits of their own, respectively; based on the paths allocated by the bearer control entities of the first network and the second network, transmitting service stream between the logic bearer layers of these two networks. Therefore, the operator can hide its own network topology without communication failure caused by the distrust between operators, and thus, networks of different operators can be safely connected.
Abstract:
A method for guaranteeing service reliability in an end-to-end Quality of Service framework is provided. The method includes checking whether connection information held in all node equipment gone through by a session connection is consistent. If the connection information is consistent, the consistency check is completed. Otherwise, the inconsistent connection information is released from the node equipment. In the provided method, a consistency check is performed inside every node equipment, and between node equipment in the network, and thus, abnormal resources may be retrieved, so that network service ability will not be affected by abnormal situations. Consistent with the provided method, degradation of service ability because of network abnormity can be avoided, and network reliability and availability can be improved.
Abstract:
A method for ensuring reliability in a network is disclosed, including: distributing, based on service flow, services to multiple home function entities of the coupled function entity, where the multiple home function entities have identical functional characteristics in the network; taking over, by a first home function entity operating normally, work of a second home function entity to be switched if determining to switch between the multiple home function entities. Through the method, if one or more of the multiple home function entities is in failure, other home function entities may take over work of the function entities in failure, which ensures the continuity of data flows of services and prevents the services from being interrupted, greatly improves reliability and load balancing ability of end-to-end QoS architecture. Furthermore, there is no limitation on network architecture and the method is applicable to networks with any scales.
Abstract:
A method is disclosed for providing reliable transmission Quality of Service (QoS) in communication network, in which a QoS connection is established between bearer network resource managers in bearer network control layer, and maintenance management mechanism is well established in terms of the QoS connection. Various QoS resource control messages can be carried through this established QoS connection, so that request of service bandwidth application of the user and the result thereof, as well as the path information allocated by bearer network resource managers can be transferred. The disclosed method is reliable and easy to implement and maintain, with good controlled quality, and can implement resource synchronization between bearer network resource managers. Therefore, implementation of the disclosed method makes it more convenient to manage resources of bearer network uniformly, and provides technical support on guaranteeing transmission reliability of important services.
Abstract:
A multicast/unicast admission control method, a multicast/unicast admission control device, and a multicast/unicast admission control system are provided. In the method, through centralized resource control of a resource and admission control subsystem (RACS), sharing of multicast/unicast resources is realized. The RACS allocates and authorizes resources to an access node (AN), the AN manages the obtained multicast resources under the authorization, and the resource allocation is adjusted through interaction when the multicast resources of the AN or the resources of the RACS are not sufficient.
Abstract:
The present disclosure relates to the field of communications, and discloses a method for determining path pre-congestion. The method is applicable to an Ethernet path. Pre-congestion is determined and flagged through an ingress node or an intermediate node in the Ethernet path, and a pre-congestion status indication packet is sent by an egress node to the ingress node or a policy server, so that the ingress node or the policy server obtains pre-congestion information of the Ethernet path, and notify an application function entity AF of performing admission control. When the method in the present disclosure is used, problems of packet loss and excessively long time delay caused by the conventional congestion control technology may be avoided, thereby ensuring user experience of existing services.
Abstract:
System and method for resource admission and control is disclosed. The system for resource admission and control includes an interface unit for application function unit configured to receive service request sent from the application function unit; a policy decision function unit configured to identify the type of an access network according to the service request received by the interface unit for the application function unit and select corresponding service logic for resource admission and control according to the identified type of access network. According to the technical solutions, no matter the request for resource is made to a fixed access network defined in TISPAN, or to a wireless access network defined in the 3GPP, the policy decision function unit xPDF may identify the type of the access network and select corresponding service logic to perform resource admission and control. The xPDF conceals the details of the access network from the AF such that the solution for network construction can be simplified and the system maintenance may become simple and convenient.