Broadband network co-construction and sharing implementation method

Abstract

The invention discloses a method for realizing co-construction and sharing of a broadband network. The method comprises an access network and a backbone network. The access network comprises construction and operation of a broadband core network control plane CP, a broadband core network user plane UP, Ethernet equipment below the user plane UP, and a PON network; the backbone network comprises a network above a broadband core network and a broadband service platform; each resident network is provided with only one access network; and the plurality of backbone networks are equally accessed to the access network. The access network has the advantages that the access network is connected with a plurality of backbone networks, when a user opens a service, a telecommunication service operator does not need to jump fibers between the operator and the public optical distribution box, replacement of the telecommunication service operator can be completed through control signaling, and unsafe factors caused by fiber jumping are avoided. The problem of low resource utilization rate caused by repeated construction of resources such as optical cables and optical distribution facilities by various telecommunication service operators is avoided, the construction and operation efficiency of the broadband network is improved, and the construction and operation cost of the broadband network is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of broadband network construction, and is particularly applicable to a method for realizing broadband network co-construction and sharing. Background Art

[0002] In order to adapt to the development of urban construction and information communication, standardize the construction of fiber-to-the-home communication facilities in residential areas and residential buildings, realize resource sharing, avoid duplication of construction, meet the needs of residents for communication services, and protect the legitimate rights and interests of residents, the communication facilities of newly built residential areas and residential buildings now all adopt fiber-to-the-home mode, which is built synchronously by building developers and residential areas and residential buildings to meet the requirements of multiple telecommunications operators for equal access at "user access points" and users can freely choose. Figure 1 As shown in Figure 1, currently, telecommunication operators and residential construction parties respectively set up wiring boxes or wiring cabinets. Generally, the wiring modules on the exchange side are built by telecommunication operators, such as Figure 1 The optical distribution box of operator A, operator B, and operator C in the diagram. The user-side distribution module is constructed by the residential construction party, such as Figure 1 When a user activates the service, the telecommunications operator needs to connect the optical fiber on the company's optical distribution box to the user's home optical fiber in the public optical distribution box. If the user changes the telecommunications operator, the operator providing telecommunications services to the user is responsible for removing the user's home optical fiber from the optical distribution box of other telecommunications operators and connecting it to the company's optical distribution box.

[0003] In this model, first of all, each telecom operator needs to build its own optical cables and optical distribution facilities, which is prone to duplication or waste, and low resource utilization. At the same time, when providing network services, each telecom operator needs to continuously perform fiber jumper operations, which has serious unsafe factors and poor reliability. It often causes mutual influence between telecom operators, resulting in network failures, increasing the number of network repair reports, and reducing user experience.

[0004] Broadband core network (BNC) is a new type of network architecture for broadband networks, which is mainly responsible for access control, service management and traffic forwarding of broadband services. The existing broadband network gateway BNG and service support systems (AAA, etc.) will gradually evolve towards the broadband core network (BNC) architecture. Summary of the invention

[0005] The purpose of the present invention is to provide a method for realizing co-construction and sharing of broadband networks, aiming to solve the problems in the current broadband networks, in which each telecommunications business operator needs to build its own optical cables, optical distribution facilities, etc., which are prone to duplicate construction or waste, low resource utilization, and when providing network services, it is necessary to continuously perform fiber jumping operations, which has serious unsafe factors, poor reliability, high network repair volume, and low user experience.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The method for realizing co-construction and sharing of broadband networks described in the present invention comprises an access network and a backbone network, wherein the access network comprises a broadband core network control plane CP, a broadband core network user plane UP, and Ethernet equipment below the user plane UP and the construction and operation of a PON network; the backbone network comprises networks above the broadband core network and a broadband service platform; each resident network is provided with only one access network; and each access network can access multiple backbone networks.

[0007] Furthermore, the user carries the unique identity code of the optical modem to enter the optical modem management system; the optical modem management system guides the user to enter the broadband service system of the selected backbone network operator, inputs the user information and service information and completes the payment, and obtains the Internet access account and password; the broadband service system of the backbone network operator sends the user information and service information to the backbone network operator's BSS system; the BSS system synchronously updates the user's network access rights and service features to the backbone network operator's AAA system.

[0008] Furthermore, the broadband Internet access control plane signaling process includes: the optical modem starts the PPPOE Ethernet point-to-point protocol, broadcasts the PADI message to the user plane UP at the broadband core network pool end, and after being encapsulated by the broadband core network user plane UP and sent to the broadband core network control plane CP for determination, determines the broadband core network user plane UP that carries the broadband service, so that subsequent messages are all unicast sent to the designated broadband core network user plane UP.

[0009] Furthermore, the broadband core network control plane CP directs the message to the backbone network operator AAA server specified by the user according to the backbone network operator identifier, user Internet account and password carried in the message, and completes the Internet service authentication interaction between the backbone network operator AAA server and the optical modem.

[0010] Furthermore, the AAA server of the backbone network operator designated by the user notifies the backbone network operator's DHCP server to allocate an IP address to the optical modem, and notifies the CP to start billing and send a forwarding flow table to the UP, so that the UP obtains a local forwarding table entry.

[0011] Furthermore, the broadband Internet access data plane process includes: uplink data traffic is forwarded to the corresponding UP via the optical modem, and the UP forwards it to the core router of the backbone network operator to the backbone network according to the backbone network operator routing table specified by the user; the downlink data flow is forwarded to the UP via the backbone network core router, and the UP forwards it to the optical modem according to the access network routing table.

[0012] Furthermore, the destination MAC of the uplink data traffic is the UP virtual MAC corresponding to the optical modem, and the source IP is the optical modem IP.

[0013] The advantage of the present invention is that the access network is connected to multiple backbone networks. When users open services, there is no need for telecommunications operators to jump fibers between operators and public optical distribution boxes. The replacement of telecommunications operators can be completed by controlling signaling, avoiding the unsafe factors caused by fiber jumping. At the same time, it avoids the problem of low resource utilization caused by repeated construction of optical cables, optical distribution facilities and other resources by various telecommunications operators. In the subsequent user use process, the method described in the present invention is simple and flexible in network management, easy to locate faults, easier to maintain, improves the construction and operation efficiency of broadband networks, reduces the construction and operation costs of broadband networks, and realizes "network-industry separation". BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of network deployment in the prior art.

[0015] Figure 2 A schematic diagram of network deployment of the method described in the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The broadband core network BNC includes the BNC control plane (BNC-CP) and the BNC user plane (BNC-UP). The BNC-CP implements functions such as user access control and service management. The BNC-UP is responsible for user service traffic forwarding and traffic control.

[0018] like Figure 2 As shown, the broadband network co-construction and sharing implementation method of the present invention includes an access network and a backbone network, and based on the broadband core network BNC architecture, only one access network is built in each resident network. The access network includes the broadband core network control plane CP, such as CTRL, UPMNG, ACC, etc., the user plane UP, and the construction and operation of the network below the user plane UP, such as the PON network, including OLT, ODN, ONU, etc.

[0019] Among them, CTRL is the control module, responsible for allocating IP addresses to users and interacting with various servers. UPMNG is the management module, responsible for UP device status management, issuing configurations to UP, creating and distributing forwarding table entries. ACC is the access module, responsible for processing PPPoE and DHCP dial-up messages.

[0020] The backbone network includes the broadband core network BNC and above networks and broadband service platforms, such as backbone network switches / routers, RADIUS servers, DHCP servers, CDN control planes, intelligent service analysis (CAM) and other network elements, as well as broadband service malls (STORE), etc. The backbone network is managed by various network operators and provides users with various network services such as Internet access, Internet multi-point interconnection, IPTV unicast services, IPTV multicast services, VOIP voice services, various smart home services, etc.

[0021] The access network complies with the principle of fair access and can choose to connect to multiple backbone networks, thereby realizing the co-construction and sharing of the access network by multiple backbone network operators.

[0022] In the network below the broadband core network user plane UP, such as the PON network, after the terminal device optical modem ONU is powered on, the PON link layer registration and authentication is started to complete the link connection between the OLT and the optical modem ONU. After that, the optical modem ONU starts the authentication of the terminal management system, so that the terminal management system can manage and configure various CPEs (including the business services of ONUs of various manufacturers without distinction). At this point, the optical modem ONU has established a data link with the broadband core network user plane UP and control plane CP, and has established a connection with the access network management system, such as the RMS optical modem management system.

[0023] In the implementation method of broadband network co-construction and sharing of the present invention, the steps for a user to select a backbone network operator are as follows: 1. Set (can be attached externally) a QR code representing the unique identity of the optical modem on the surface of the optical modem ONU. Users can scan the code to enter the APP, mini program or public account, etc.

[0024] 2. The APP, mini program or official account updates the selection information of the backbone network operator to the RMS optical modem management system.

[0025] 3. The RMS optical modem management system pushes the user's choice of backbone network service network (i.e. backbone network operator) to the optical modem ONU corresponding to the user's home. That is, the user enters the optical modem management system through the optical modem's unique identity code to select the backbone network operator.

[0026] The specific process for users to activate backbone network services includes: 1. The RMS optical modem management system guides the user to enter the broadband service STORE system of the backbone network (service) operator selected by the user, enter the service selection page, enter the ID number and other necessary information, and customize the selection of related services provided by the backbone network (service) operator.

[0027] 2. After completing the selection, submit it to the broadband service STORE (mall) system of the backbone network (service) operator, and the system will prompt the user to pay.

[0028] 3. Users pay online according to the fee prompts.

[0029] 4. The broadband service STORE (mall) of the backbone network (service) operator issues Internet access accounts and passwords to users, and users can also modify their passwords by themselves.

[0030] 5. The broadband service STORE (mall) of the backbone network (service) operator sends the user's Internet account and password, as well as the user's identity information and service selection information to the BSS system (Business Support System, including customer relationship management CRM, service order, and billing system) of backbone network (service) operator A.

[0031] 6. The BSS system of backbone network (service) operator A synchronously updates the user's related network access rights and service features to the AAA system of backbone network (service) operator A.

[0032] That is, the optical modem management system guides the user to enter the broadband service system of the selected backbone network operator, enter the user information and service information and complete the payment to obtain the Internet account and password. The broadband service system of the backbone network operator sends the user information and service information to the backbone network operator's BSS system; the BSS system synchronously updates the user's network access rights and service features to the backbone network operator's AAA system.

[0033] The user's broadband Internet access service uses PPPOE for dial-up authentication, including PPPoE (obtaining a public network IP) and PPPoE (obtaining a private network IP). The optical modem ONU needs to interact with the backbone network (service) operator's AAA system to perform account authentication, service authorization and billing through the AAA system, including the control plane signaling process and the data plane traffic process.

[0034] Among them, the control plane signaling path is: ONU optical modem → OLT → UP → CP → AAA system of backbone network (service) operator A.

[0035] The specific control plane signaling process is as follows: 1. The ONU starts the PPPOE Ethernet point-to-point protocol process, broadcasts the PADI message to the pool-end UP, and the UP encapsulates the message into the VXLAN tunnel and sends it to the CP for judgment. The CP selects a suitable UP to carry the ONU's service; it replies to the ONU with PADO in unicast, and all subsequent PADR / PADS messages are sent between unicast and the designated UP. That is, the optical modem starts the PPPOE Ethernet point-to-point protocol, broadcasts the PADI message to the user plane UP at the pool end of the broadband core network, and after being encapsulated by the broadband core network user plane UP and sent to the broadband core network control plane CP for judgment, the broadband core network user plane UP that carries the optical modem service is determined, so that all subsequent messages are unicast to the designated broadband core network user plane UP.

[0036] 2. The ONU starts the PPP three-stage negotiation process. In this process, the message sent by the ONU to the CP contains the backbone network (service) operator's ID, account number, and password. The CP recognizes that the user ONU is a user of the backbone network (service) operator, and redirects all negotiation messages to the backbone network (service) operator's AAA server. The backbone network (service) operator's AAA server interacts with the ONU for authentication and completes the ONU's authentication. That is, the broadband core network control plane CP directs the message to the backbone network operator's AAA server through the backbone network operator's ID, user's Internet account number, and password carried in the message, completing the authentication interaction between the backbone network operator's AAA server and the optical modem.

[0037] 3. The backbone network (service) operator's AAA server notifies the backbone network (service) operator's DHCP server to allocate an IP address to the ONU, completing the three-stage negotiation process.

[0038] 4. After the three-stage negotiation process is completed, the AAA server of the backbone network (service) operator notifies the CP to send the forwarding flow table to the UP (all subsequent traffic is forwarded to the backbone bearer network of the backbone network (service) operator), and the UP converts the received flow table into a local forwarding table entry.

[0039] 5. The backbone network (service) operator's AAA server notifies the CP to start the billing process. That is, the backbone network operator's AAA server notifies the backbone network operator's DHCP server to allocate an IP address to the optical modem, and notifies the CP to start billing and send the forwarding flow table to the UP so that the UP obtains the local forwarding table entry.

[0040] The data plane traffic path of the user's broadband Internet access service is: NU→OLT→access bearer network→UP→backbone network (service) operator A's CR (core router)→backbone bearer network of backbone network (service) operator A.

[0041] The specific data plane traffic process is as follows: 1. Uplink data: ONU receives service traffic in LAN (home LAN), sets the destination MAC to UP virtual MAC, the source IP to itself, and sends it to the corresponding UP through the access network. After receiving it, UP checks the routing table of the backbone bearer network of the backbone network (service) operator and forwards it (NAT conversion address table forwarding) to the CR (core router) of the backbone network (service) operator. The CR public network forwards it to the backbone bearer network of the backbone network (service) operator. (All subsequent traffic is forwarded to the backbone bearer network of the backbone network (service) operator).

[0042] 2. Downlink data: The backbone bearer network CR (core router) of the backbone network (service) operator receives the service traffic sent by the backbone bearer network CR (core router) of the backbone network (service) operator, and forwards it to the UP. The UP checks the routing table of the access bearer network and forwards it (NAT conversion address table lookup forwarding) to the corresponding ONU. The ONU (NAT conversion address table lookup forwarding) forwards it to the LAN.

[0043] By adopting the broadband network co-construction and sharing implementation method described in the present invention, when users activate services, there is no need for telecommunications service operators to jump fibers between operators and public optical distribution boxes. The replacement of telecommunications service operators can be completed by controlling signaling, thus avoiding the unsafe factors caused by fiber jumping. At the same time, it avoids the problem of low resource utilization caused by repeated construction of optical cables, optical distribution facilities and other resources by various telecommunications service operators. In the subsequent user use process, the method described in the present invention is simple and flexible in network management, easy to locate faults, and easier to maintain.

Claims

1. A method for implementing co-construction and sharing of a broadband network, comprising an access network and a backbone network, characterized in that: The access network includes the broadband core network control plane CP, the broadband core network user plane UP, and the construction and operation of Ethernet equipment and PON network below the user plane UP; the backbone network includes the network above the broadband core network and the broadband service platform; each local network has only one access network; each access network can access multiple backbone networks.

2. The method for realizing co-construction and sharing of a broadband network according to claim 1, characterized in that: The user carries the unique identity code of the optical modem to enter the optical modem management system; the optical modem management system guides the user to enter the broadband service system of the selected backbone network operator, input the user information and service information and complete the payment, and obtain the Internet access account and password; the broadband service system of the backbone network operator sends the user information and service information to the backbone network operator's BSS system; the BSS system synchronously updates the user's network access rights and service features to the backbone network operator's AAA system.

3. The method for realizing co-construction and sharing of a broadband network according to claim 1, characterized in that: The broadband Internet access control plane signaling process includes: the optical modem starts the PPPOE Ethernet point-to-point protocol, broadcasts the PADI message to the user plane UP at the broadband core network pool end, encapsulates it in the broadband core network user plane UP and sends it to the broadband core network control plane CP for decision, and then determines the broadband core network user plane UP that carries the broadband service, so that subsequent messages are unicasted to the designated broadband core network user plane UP.

4. The method for realizing co-construction and sharing of a broadband network according to claim 3, characterized in that: The broadband core network control plane CP directs the message to the backbone network operator AAA server specified by the user based on the backbone network operator identifier, user Internet account and password carried in the message, and completes the Internet service authentication interaction between the backbone network operator AAA server and the optical modem.

5. The method for realizing co-construction and sharing of a broadband network according to claim 4, characterized in that: The AAA server of the backbone network operator designated by the user notifies the backbone network operator's DHCP server to allocate an IP address to the optical modem, and notifies the CP to start billing and send a forwarding flow table to the UP, so that the UP obtains a local forwarding table entry.

6. The method for realizing co-construction and sharing of a broadband network according to claim 1, characterized in that: The broadband Internet access data plane process includes: uplink data traffic is sent to the corresponding UP via the optical modem, and the UP forwards it to the core router of the backbone network operator to the backbone network according to the backbone network operator routing table specified by the user; The downlink data flow is forwarded to the UP via the backbone network core router, and the UP forwards it to the optical modem according to the access network routing table.

7. The method for realizing co-construction and sharing of a broadband network according to claim 6, characterized in that: The destination MAC of the uplink data traffic is the UP virtual MAC corresponding to the optical modem, and the source IP is the optical modem IP.

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