Multi-service and multi-edge device and system

Abstract

The present invention provides a multi-service multi-edge device and a system, wherein the device mainly includes network access edge node devices, and the system mainly includes a multi-service multi-edge system and a network access system, which includes SPs (Service providers) and access networks. The multi-service multi-edge system is characterized in that at least two access networks are connected together via the network access edge node devices, and the network access edge node device of each access network is only connected with a SP corresponding to the access network. By utilizing the device and system of the present invention, the function of network access edge nodes is simplified, and users are provided with multiple services via access networks in the circumstance of the cost reduction of network access edge nodes.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a multi-service multi-edge device and system. Background technique [0002] In a wireless communication system, the general reference architecture of an access network is shown in Figure 1, including three parts: CPN (Customer Premises Network), Access Network (Access Network) and SP (Service Provider). Among them, the CPN is composed of UE (User Equipment) and RG (Resident Gateway); the access network is composed of AN (Access Node) and EN (Edge Node) and the aggregation network between them (not shown in Figure 1); The access network is connected to the SP, and the SP may be an ASP (Application Service Provider, application service provider) or an NSP (Network Service Provider, network service provider). [0003] For WiMAX (World Interoperability for Microwave Access, microwave access to the global Internet), EN is ASN (Access Service Network, access service network) GW (G...

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Problems solved by technology

Therefore, the functions of BNG / BRAS will be complicated and the cost will be high; every time an SP is added, IP addresses must be reassigned to all edge nodes, which will have a greater impact on the network where BNG and AN are integrated;

[0011] 2. Due to the differences in service characteristics provided by different SPs, BNG / BRAS needs to support various service characteristics, that is, every time a new service is added, relevant feature support needs to be added to BNG / BRAS; and all user authentication Control flows such as billing and billing also need to be supported on BNG / BRAS, resulting in many functions that BNG / BRAS needs to support and poor scalability, causing BNG / BRAS to become the bottleneck of the entire network;

[0012] 3. The single-edge multi-service network architecture is only designed for best-effort Internet access. When services with high bandwidth and QoS support such as IPTV are introduced, the architecture will face problems such as bandwidth shortage and QoS cannot be guaranteed.

If the newly added Remote DSLAM, BS or AP is to be connected to the original BNG, the original BNG needs to enhance the support for the DSLAM and BS / AP's layer 2, above layer 2 and some physical layer hybrid functions, which will increase The complexity of the original BNG

[0017] For the new WiMAX network on this architecture, similar problems will also be encountered. It is basically impossible to connect the newly added BS to the newly added ASN GW with the original BNG, and it is impossible to connect the original AN. To the newly added ASN GW, in this case, how to provide multiple services is an urgent problem to be solved

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