CN101765232B - DSL (Digital Subscriber Line) network access method and system as well as broadband remote access server - Google Patents
DSL (Digital Subscriber Line) network access method and system as well as broadband remote access server Download PDFInfo
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Abstract
The invention discloses DSL (Digital Subscriber Line) network access method and system as well as a broadband remote access server (BRAS). The method comprises the following steps that: a broadband remote access server of a DSL network receives a request message transmitted by a mobile terminal through an access gateway, wherein the request message carries the terminal information and the access position information of the mobile terminal; and the broadband remote access server authenticates the mobile terminal according to the terminal information and the access position information and allots an IP address for the mobile terminal. By the invention, the request message for requesting the IP address to a BRAS of the DSL network by the mobile terminal of WIMAX (worldwide interoperability for microwave access); and after authenticating the mobile terminal of the WIMAX, the BRAS allots the IP address for the mobile terminal so that the mobile terminal of the WIMAX can access to the DSL network, thereby solving the problem that a WIMAX user accessingto the DSL network cannot be realized in the relevant technology and further achieving the purpose of meeting the network interworking and the service interworking.
Description
Technical field
The present invention relates to communication technical field, particularly, relate to a kind of digital subscriber line (Digital Subscriber Line is referred to as DSL) method for network access and system and Broadband Remote Access Server.
Background technology
Inserting of microwave whole world interoperability authentication (Worldwide Interoperability forMicrowave Access, referred to as WiMAX) be an emerging technology, " last kilometer " broadband connection can be provided in the territorial scope more wide than Wi-Fi, support thus corporate client enjoyment T1 class service and resident to have the access ability that is equivalent to cable/DSL.Rely on its 1～6 mile coverage (depending on many factors) anywhere, WiMAX can provide outstanding mobility for high-speed data applications.In addition, rely on this coverage and high-throughput, WiMAX can also be provided as the infrastructure of telecommunication, enterprise campus and Wi-Fi Hotspot backhaul is provided.
Fig. 1 is the structured flowchart according to the WiMAX network of correlation technique, as shown in Figure 1, the WiMAX network mainly comprises access service network (Access Service Network, referred to as ASN) territory and connectivity service network (Connectivity Service Network is referred to as CSN) territory.
Wherein, the ASN territory mainly comprises the functional entitys such as base station (Base Station is referred to as BS) and IAD (Access Gate Way is referred to as AGW).
The function that ASN completes in the territory mainly comprises: 2 is connected with the layer of WiMAX terminal, the Network finding of the transmission of authentication and authorization charging message, business network and selection, relay function, radio open resource management, access business network is provided and is connected building tunnel and management between business network for setting up to be connected with layers 3 of WiMAX terminal.
The CSN territory mainly comprises the functional entitys such as DHCP (Dynamic HostConfiguration Protocol is referred to as DHCP) server, authentication and authorization charging server, home agent.
The function that CSN is responsible for completing in the territory comprises: user conversation connection, terminal network agreement (Internet Protocol is referred to as IP) address assignment, the Internet (Internet) access, authentication and authorization charging agency or server, based on strategy and license control, the access business network of custom system parameter and be connected building tunnel and management, user's charging and clearing, connection business network internetwork roaming tunnel and mobile management between business network.
DSL is the transmission technology combination take copper telephone wire as transmission medium, it comprises HDSL High-Speed Digital Subscriber Line (High-data-rate Digital Subscriber Line, referred to as HDSL), Symmetric Digital Subscriber Line (Symmetric Digital Subscriber Line, referred to as SDSL), Very-high-speed Digital Subscriber Line road (Very-high-data-rate DigitalSubscriber Line, referred to as VDSL), Asymmetrical Digital Subscriber Line (AsymmetricDigital Subscriber Line, referred to as ADSL) and RADSL (Rate Adaptive Digital Subscriber Line, referred to as RADSL) etc., generally be referred to as xDSL.Their main differences are exactly to be embodied in the symmetric difference of the difference of signaling rate and distance and upstream rate and downstream rate these two aspects.
at present, telecommunications and the Internet converged services and high-level network protocol (Telecommunication and Internet converged Service and Protocol forAdvanced Networking, referred to as TISPAN) next generation network (NextGeneration Network, referred to as NGN) the R3 framework in increased the application scenarios of WiMAX access NGN, Fig. 2 shows the network configuration according to the WiMAX mobile terminal access NGN of correlation technique, as shown in Figure 2, subscriber equipment (User Equipment, referred to as UE) by 802.16 technology access BS, and then signal and data that UE sends converge to IP boundary point equipment (IP Edge Node) via BS.
At present, mutual (the Interworking of WiMAX DSL has also been proposed in WiMAX Forum, referred to as IWK) problem, the Broadband Remote Access Server (Broadband Remote AccessServer referred to as BRAS) of user UE by WiMAX network insertion DSL network.
But, no matter be in TISPAN NGN R3 framework or in WiMAX DSL IWK scene, that provide is all a relatively abstract application scenarios figure, is not an enforceable concrete deployment scheme, WiMAX user is accessed the DSL network, total solution is not provided.
Can find out, for realizing that WiMAX user accesses the problem of DSL network, not yet propose at present effective solution.
Summary of the invention
Consider and to realize in correlation technique that WiMAX user accesses the problem of DSL network and makes the present invention, for this reason, main purpose of the present invention is to provide a kind of DSL method for network access and system and Broadband Remote Access Server, to solve the problems referred to above in correlation technique.
For achieving the above object, according to an aspect of the present invention, provide a kind of DSL method for network access.
Digital subscriber line DSL method for network access according to the present invention comprises: the request message that the Broadband Remote Access Server mobile terminal receive of DSL network sends via IAD, wherein, carry end message and the accessing position information of mobile terminal in request message; Broadband Remote Access Server authenticates mobile terminal according to end message and accessing position information, and is mobile terminal distributing IP address.
Preferably, before the request message that the Broadband Remote Access Server mobile terminal receive sends via IAD, the method also comprises: mobile terminal sends the request message that is used for IP address requesting to Broadband Remote Access Server, wherein, carry end message in request message; The dynamic host configuring protocol agent of IAD receives request message, carries accessing position information in request message, and the request message that carries accessing position information is sent to Broadband Remote Access Server.
Preferably, after Broadband Remote Access Server was terminal distribution IP address, the method also comprised: the access service network of mobile terminal upgrades the initial service flow classifier of mobile terminal.
Preferably, above-mentioned end message comprises: the physical layer parameter of mobile terminal.
Preferably, above-mentioned accessing position information comprises one of following: the sign of the sign of the IAD of mobile terminal access, the access base station of mobile terminal.
According to another aspect of the present invention, provide a kind of Broadband Remote Access Server.
Broadband Remote Access Server according to the present invention comprises: receiver module, be used for mobile terminal receive via the request message that IAD sends, and wherein, carry end message and the accessing position information of mobile terminal in request message; Read module is used for reading end message and accessing position information that request message that receiver module receives carries; Authentication module, end message and accessing position information for reading according to read module authenticate mobile terminal; Distribution module, end message and accessing position information for reading according to read module after authentication module authenticates mobile terminal, are mobile terminal distributing IP address.
According to another aspect of the present invention, provide a kind of DSL network access system.
DSL network access system according to the present invention comprises: the IAD of the Broadband Remote Access Server of DSL network, WiMAX network, wherein, IAD comprises: the first receiver module, be used for receiving the request message from mobile terminal, wherein, carry end message in request message, be used for IP address requesting; Carry module, be used for carrying at request message the accessing position information of mobile terminal; Sending module sends to Broadband Remote Access Server for the request message that will carry accessing position information; Wherein, Broadband Remote Access Server comprises: the second receiver module is used for receiving the request message that IAD sends; Read module is used for reading end message and accessing position information that request message that receiver module receives carries; Authentication module, end message and accessing position information for reading according to read module authenticate mobile terminal; Distribution module, end message and accessing position information for reading according to read module after authentication module authenticates mobile terminal, are mobile terminal distributing IP address.
By technique scheme of the present invention, mobile terminal by WiMAX sends the request message of IP address requesting to the BRAS of DSL network, BRAS authenticates after this WiMAX mobile terminal and to be its distributing IP address, make the WiMAX mobile terminal can access the DSL network, can't realize in correlation technique that WiMAX user accesses the problem of DSL network thereby can solve, and then can reach the purpose that satisfies network interworking and business intercommunication.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the WiMAX network of correlation technique;
Fig. 2 is the network configuration block diagram according to the WiMAX mobile terminal access NGN of correlation technique;
Fig. 3 is WiMAX DSL network configuration block diagram applied according to embodiments of the invention;
Fig. 4 is the flow chart according to the DSL method for network access of the inventive method embodiment;
Fig. 5 is the signaling process figure according to the concrete enforcement of the DSL method for network access of the inventive method embodiment;
Fig. 6 is the structured flowchart according to the BRAS of apparatus of the present invention embodiment;
Fig. 7 is the structured flowchart of the DSL network access system of system according to the invention embodiment.
Embodiment
Functional overview
Consider that the WiMAX user that can't realize who exists in correlation technique accesses the problem of DSL network, the embodiment of the present invention has proposed a kind of DSL network insertion scheme and Broadband Remote Access Server (BRAS), wherein, by WiMAX mobile terminal (Mobile Station, referred to as MS) send the request message of IP address requesting to the BRAS of DSL network, BRAS authenticates after this WiMAX mobile terminal as its distributing IP address, makes the WiMAX mobile terminal can access the DSL network.
Need to prove, if do not conflict, each feature in the embodiment of the present invention and embodiment can mutually combine, all within protection scope of the present invention.In addition, can carry out in the computer system such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Before the embodiment of the present invention is described, first the applied network architecture of the present invention is described.Fig. 3 shows the applied network configuration of the embodiment of the present invention, and as shown in Figure 3, this network architecture comprises WiMAX core net and DSL network.Wherein, the WiMAX core net comprises base station (Base Station is referred to as BS) and IAD (Access GateWay is referred to as AGW).The DSL network mainly comprises digital subscriber line access server (the Digital Subscriber Line Access Multiplexer that is positioned at user side, referred to as DSLAM) and modulator-demodulator (Modem) and be positioned at BRAS (can be also IP boundary point equipment) and application service provider (the Application ServiceProvider of network terminal, referred to as ASP) and Internet Service Provider (Network Service Provider is referred to as NSP).
Below in conjunction with accompanying drawing, embodiments of the invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment of the method
According to embodiments of the invention, a kind of DSL method for network access is provided, be used for setting up at the WiMAX network MS access DSL network of the network carrying.
Fig. 4 illustrates the flow process according to the DSL method for network access of the inventive method embodiment, as shown in Figure 4, comprises that according to the DSL method for network access of the inventive method embodiment following step S402 is to step S404.
Step S402, the Broadband Remote Access Server of DSL network (BRAS) receive WiMAX MS via the request message that IAD (AGW) sends, and wherein, carry end message and the accessing position information of this MS in request message;
Step S404, BRAS receives request message, according to end message and accessing position information, this MS is authenticated, and is this WiMAX MS distributing IP address.
The method that provides by means of the present embodiment, send the request message of IP address requesting to the Broadband Remote Access Server of DSL network by WiMAX MS, obtain the IP address after the authentication that obtains Broadband Remote Access Server, can make WiMAX MS access DSL network, can't realize in correlation technique that WiMAX user accesses the problem of DSL network thereby can solve, and then can reach the purpose that satisfies network interworking and business intercommunication.
The below describes the details of above-mentioned processing procedure in detail.
(1) step S402
Set up the MS of the network carrying at the WiMAX network, when needs accesses DSL network, send the request message of a request distributing IP address to the BRAS of DSL network, and carry the end message of this MS in this request message, preferably, this end message can be the physical layer parameter of MS.
At first this request message is sent to the AGW of WiMAX network, AGW is after receiving this request message, DHCP in AGW carries the accessing position information of MS in this message, and this request message is transmitted to BRAS, preferably, this accessing position information can be the sign of the access base station of the sign of IAD of MS access or MS.
(2) step S404
After BRAS receives above-mentioned request message, learn that the WiMAXMS that sends this request message need to access the DSL network, and read end message and accessing position information in this request message.
Follow BRAS in response to this request message, at first this MS is authenticated, be its distributing IP address after the identity of having confirmed this MS.
Preferably, be after above-mentioned WiMAX MS has distributed the IP address at BRAS, AGW just can be according to the WiMAX normal process, and the initial service flow classifier of MS is upgraded.Like this, the MS miscellaneous service that just can use the DSL network to provide.
Based on above description, Fig. 5 further shows the signaling process according to the concrete enforcement of the DSL method for network access of the inventive method embodiment, and this implementation process can be applied in WiMAX DSL IWK, and a kind of IPoE authentication access scheme is provided.In this implementation process, at first MS completes in WiMAX based on pairwise key management (Pair-wise Key Management, referred to as PKM) the network admittance identifying procedure of version 2 (v2), in this process, authentication accounting server (the Authorization/Authentication/Acccounting of WiMAX, referred to as AAA) can complete WiMAX user's authentication, mandate, network registry, the initial service flow of uplink/downlink creates, after this, MS continue by with the DHCP of DSL complete alternately whole identifying procedure.As shown in Figure 5, this signaling process comprises the following steps 501 to step 505.
Step 501, WiMAX AAA Server carries out initial authentication to MS.This step can specifically comprise following step 1-1 to 1-4, and step 1-1 to 1-4 is not shown in Figure 5;
Step 1-1, MS starts basic capability negotiating (SS Basic Capabilities is referred to as SBC), and MS and BS consult PKM protocol version, certification policy;
Step 1-2, BS notifies AGW, has new MS to enter network, receives the context block about this MS ID;
Step 1-3, AGW serves as authenticator (Authenticator) and AAA client, the Extensible Authentication Protocol (Extensible Authorization Protocol is referred to as EAP) that MS is sent is sealed and is dressed up the AAA bag and pass to aaa server;
Step 1-4, after authentication finished, MS obtained the mandate of WiMAX network, thereby can carry out service communication, and can obtain a series of keys (KEY) such as MSK, EMSK;
Step 502, MS is at the WiMAX network registry, and this step can specifically comprise following step 2-1 to 2-3, and step 2-1 to 2-3 is not shown in Figure 5;
Step 2-1, MS receive PKMv2 SA_TEK_Rs message, indicate completing of PKMv2 three-way handshake flow process, carry out the 802.16e registration process by sending REG-REQ message to BS, carry the MS tenability in this message;
Step 2-2, BS sends to MS with REG-RSP message, carries suitable parameter (according to the response of BS strategy or AGW) in message, when sends the decision-making that REG-RSP depends on BS;
Step 2-3, BS notice AGW authenticator has MS to need registration, during consult the registration parameter with ASN-GW;
Step 503, AGW is that MS creates initial service flow.ASN-GW is after the MS register flow path is completed, and the CAMEL-Subscription-Information according to MS in AAA triggers the foundation of initial service flow;
Step 504, the Dynamic Host Configuration Protocol server of BRAS authenticate WiMAX MS based on parameter OPTION60/82 and are this MS distributing IP address.This step can specifically comprise following step 4-1 to 4-3, and step 4-1 to 4-3 is not shown in Figure 5;
Step 4-1, MS initiate broadcasting DHCP Request request message, carry DHCP OPTION60 parameter in this DHCP request message, and this parameter is mainly carried out MS identification, that is, this parameter comprises user's physical layer parameter;
Step 4-2, the DHCP Relay in AGW insert DHCP OPTION82 parameter after receiving this DHCP request message, this parameter is used for identifying the on-position of MS, that is, this parameter can comprise the information such as AGW sign that the user accesses, BS sign; Step 4-1 and 4-2 are corresponding to above-mentioned steps S402;
Step 4-3, the DHCP Server in BRAS authenticates also distributing IP address according to the OPTION60/82 option information to the user; This step is corresponding to above-mentioned steps S404;
Step 505, the AGW of WiMAX carries out initial service flow to be upgraded.After MS obtained the IP address, AGW was according to the WiMAX normal process, and the initial service flow classifier of MS is upgraded.
The processing procedure that above-mentioned steps 501 to step 505 provides can make the MS access DSL network of WiMAX.
Device embodiment
According to embodiments of the invention, provide a kind of Broadband Remote Access Server (BRAS).
Fig. 6 shows the structure according to the BRAS of apparatus of the present invention embodiment, as shown in Figure 6, comprises receiver module 1, read module 3, authentication module 5, distribution module 7 according to the BRAS of apparatus of the present invention embodiment.The below describes the function of above-mentioned module in detail.
As shown in Figure 6, receiver module 1 is used for receiving MS via the request message that AGW sends, and wherein, carries end message and the accessing position information of MS in request message;
Read module 3 is connected to receiver module 1, is used for reading end message and accessing position information that request message that receiver module 1 receives carries;
Authentication module 5 is connected to receiver module 1 and read module 3, and end message and accessing position information for reading according to read module 3 authenticate MS;
Distribution module 7 is connected to read module 3 and authentication module 5, for the described end message and the described accessing position information that read according to described read module 3, after 5 couples of MS of authentication module have carried out authentication, is described MS distributing IP address.
The BRAS that provides by means of the present embodiment, by receiver module, read module, authentication module, distribution module are set, the request message of the IP address requesting that the MS of WiMAX is sent to BRAS receives and resolves, can authenticate and be its distributing IP address MS, make the MS of WiMAX can access the DSL network.
System embodiment
According to embodiments of the invention, provide a kind of DSL network access system.
Fig. 7 shows the structure of the DSL network access system of system according to the invention embodiment, and as shown in Figure 7, this system comprises: the AGW 2 of WiMAX network, the BRAS 4 of DSL network.The below describes the function of AGW 2 and BRAS 4 in detail.
Wherein, AGW 2 comprises: the first receiver module, be used for receiving the request message from MS, and wherein, carry end message in request message, be used for IP address requesting; Carry module, be connected to the first receiver module, be used for carrying at request message the accessing position information of MS; Sending module is connected to and carries module, sends to Broadband Remote Access Server (above-mentioned module is not shown in Figure 7) for the request message that will carry accessing position information.
BRAS 4 comprises: the second receiver module is used for receiving the request message that IAD sends; Read module is connected to the second receiver module, is used for reading end message and accessing position information that request message that the second receiver module receives carries; Authentication module is connected to read module, and end message and accessing position information for reading according to read module authenticate MS; Distribution module is connected to read module and authentication module, and end message and accessing position information for reading according to read module are MS distributing IP address (above-mentioned module is not shown in Figure 7).
In sum, by means of technical scheme of the present invention, send the request message of IP address requesting to the BRAS of DSL network by WiMAX MS, after authenticating this WiMAXMS, BRAS is its distributing IP address, make WiMAX MS can access the DSL network, can't realize in correlation technique that WiMAX user accesses the problem of DSL network thereby can solve, and then can reach the purpose that satisfies network interworking and business intercommunication.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a digital subscriber line DSL method for network access, is characterized in that, described method comprises:
The Broadband Remote Access Server mobile terminal receive of DSL network wherein, carries end message and the accessing position information of described mobile terminal via the request message that IAD sends in described request message;
Described Broadband Remote Access Server authenticates described mobile terminal according to described end message and described accessing position information, and is described mobile terminal distributing IP address;
Wherein, before the request message that described Broadband Remote Access Server mobile terminal receive sends via IAD, described method also comprises:
Described mobile terminal sends the request message that is used for IP address requesting to Broadband Remote Access Server, wherein, carry described end message in described request message;
The dynamic host configuring protocol agent of described IAD receives described request message, carries described accessing position information in described request message, and the request message that carries described accessing position information is sent to described Broadband Remote Access Server.
2. method according to claim 1, is characterized in that, after described Broadband Remote Access Server was described terminal distribution IP address, described method also comprised:
The access service network of described mobile terminal upgrades the initial service flow classifier of described mobile terminal.
3. method according to claim 1, is characterized in that, described end message comprises:
The physical layer parameter of mobile terminal.
4. method according to claim 1, is characterized in that, it is one of following that described accessing position information comprises:
The sign of the sign of the IAD of described mobile terminal access, the access base station of described mobile terminal.
5. a DSL network access system, is characterized in that, comprising: the IAD of the Broadband Remote Access Server of DSL network, WiMAX network, wherein,
Described IAD comprises:
The first receiver module is used for receiving the request message from mobile terminal, wherein, carries described end message in described request message, is used for IP address requesting;
Carry module, be used for carrying in described request message the accessing position information of described mobile terminal;
Sending module sends to described Broadband Remote Access Server for the request message that will carry described accessing position information;
Described Broadband Remote Access Server comprises:
The second receiver module is used for receiving the described request message that described IAD sends;
Read module is used for reading described end message and described accessing position information that described request message that described receiver module receives is carried;
Authentication module, described end message and described accessing position information for reading according to described read module authenticate described mobile terminal;
Distribution module, described end message and described accessing position information for reading according to described read module after described authentication module authenticates described mobile terminal, are described mobile terminal distributing IP address.
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| CN102447746B (en) | 2010-10-08 | 2015-04-08 | 华为技术有限公司 | Information supply method, family gateway and family network system |
| CN102572774B (en) * | 2010-12-27 | 2015-06-03 | 中兴通讯股份有限公司 | A method for accessing a network in multiple access modes, an access device, and an authentication device |
| CN105245638B (en) * | 2012-04-28 | 2019-06-21 | 华为技术有限公司 | Address allocation method, apparatus and system |
| CN103916401B (en) * | 2014-04-17 | 2018-04-27 | 中国联合网络通信集团有限公司 | Gateway device authentication method, authenticating device and Verification System |
| CN105323749A (en) * | 2014-07-15 | 2016-02-10 | 中兴通讯股份有限公司 | Method, device and system for realizing dial-up networking |
| WO2020206584A1 (en) * | 2019-04-08 | 2020-10-15 | Arris Enterprises Llc | Administrating pending network access requests via a telephony device |
| CN113067758B (en) * | 2021-03-23 | 2022-09-27 | 中国联合网络通信集团有限公司 | Broadband access method, system, terminal and storage medium |
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| CN101060448A (en) * | 2006-04-21 | 2007-10-24 | 华为技术有限公司 | A device, equipment and system in WiMAX network for providing the broad band value-added service |
| CN101123800A (en) * | 2006-08-11 | 2008-02-13 | 华为技术有限公司 | WiMAX Multi-Edge System and Multi-Edge System Interconnecting WiMAX and Wired Network |
| CN101184338A (en) * | 2007-12-17 | 2008-05-21 | 华为技术有限公司 | User access method and gateway device in WIMAX system |
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| CN101060448A (en) * | 2006-04-21 | 2007-10-24 | 华为技术有限公司 | A device, equipment and system in WiMAX network for providing the broad band value-added service |
| CN101123800A (en) * | 2006-08-11 | 2008-02-13 | 华为技术有限公司 | WiMAX Multi-Edge System and Multi-Edge System Interconnecting WiMAX and Wired Network |
| CN101184338A (en) * | 2007-12-17 | 2008-05-21 | 华为技术有限公司 | User access method and gateway device in WIMAX system |
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