WO2004025981A1 - Registre de localisation des passerelles et procede d'echange d'informations relatives a l'acheminement des abonnes - Google Patents

Registre de localisation des passerelles et procede d'echange d'informations relatives a l'acheminement des abonnes Download PDF

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Publication number
WO2004025981A1
WO2004025981A1 PCT/CN2003/000770 CN0300770W WO2004025981A1 WO 2004025981 A1 WO2004025981 A1 WO 2004025981A1 CN 0300770 W CN0300770 W CN 0300770W WO 2004025981 A1 WO2004025981 A1 WO 2004025981A1
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WO
WIPO (PCT)
Prior art keywords
user
signaling
information
interworking
ghlr
Prior art date
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PCT/CN2003/000770
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English (en)
French (fr)
Inventor
Wenlin Zhang
Lixin Sun
Shaobo Zhang
Weijie Wang
Hao Ding
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP03794760A priority Critical patent/EP1551196A4/en
Priority to AU2003264317A priority patent/AU2003264317A1/en
Priority to US10/527,654 priority patent/US7319873B2/en
Publication of WO2004025981A1 publication Critical patent/WO2004025981A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/72—Subscriber identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server

Definitions

  • the present invention relates to mobile communication technology, and in particular, to routing information optimization and control technology in mobile communication.
  • any call received is an international long distance call, that is, the call must be completed through the communication channel established by the mobile network of the home country and the roaming country.
  • the roaming user must pay between the home country and the roaming country. International calling costs, even if the call originator and roaming user are within easy reach.
  • a companion traveling together communicates with each other, or a mobile or fixed user in a visiting place contacts the user. Although they are close to each other, a voice connection must be established through the above roaming method, and since the established voice channels are all established to the home country, then Back again, the long-distance international connection results in poor voice quality, and the user pays twice the international long-distance fee, as shown in Figure 1.
  • the process is as follows:
  • PLMN Public Land Mobile Network A
  • VLR Visit Location Register hereinafter referred to as VLR
  • GMSC Gateway Mobile-services Switching Center
  • GMSCA routes the call to GMSCB in PLMNB
  • GMSCB sends SRI Send Routing Information to HLR Home Location Register B (hereinafter referred to as HLR) to request routing information;
  • HLR Home Location Register B
  • HLRB requests roaming number from VLRB; 5.VLRB roaming number to HLRB;
  • HLRB returns the roaming number to GMSCB
  • GMSCB routes the call to GMSCA according to the roaming number of the country where PLMNA is located;
  • GMSCA Based on this roaming number, GMSCA connects the call to MSCB.
  • the route optimization support function (SOR support of optimal route (hereinafter referred to as SOR)) method in the technical specifications of GSM and UMTS (imiversal mobile telecommunication services) proposes a solution in which the GMSCA directly obtains routing information from HLRB, but it involves various The operator's protection of user information has not been resolved, and currently there is almost no application. According to the current call specifications, if you need to optimize the route, you should generally obtain the roaming number from the home network. However, the problem of protecting the user's routing information by the operators involved in international roaming has not been solved, and the route optimization service cannot currently be developed and applied on a large scale. Summary of the Invention
  • the present invention addresses the above situation, and proposes a gateway home location register and a method for interacting with roaming user routing information using the device.
  • GLR Gateway Home Location Register which includes:
  • the signaling transceiver module is connected to the user information storage network element of the home network and the network element in the user roaming network that has the function of obtaining user routing information, receives the signaling request and sends a signaling response, and completes the home location register of the network element and the gateway. Information exchange between
  • a security rule configuration module which stores the interworking security rules and related data of the gateway home location register system
  • the routing information security analysis module receives and stores the signaling information sent by the signaling transceiver processing module, identifies and analyzes the signaling request according to the security rules generated by the security rule configuration module, and sends a reply message through the signaling transceiver processing module. The order is sent to the destination network element.
  • the interworking security rules include security rules set by the operator and security selected by the user's contract. Rules.
  • the security rule configuration module includes:
  • Security rule storage module stores interworking security rule logic of GHLR system
  • System interworking security rule storage module stores interworking security rule data of GHLR system
  • user contract interworking data storage module stores user interworking data
  • User contract data conversion module Corresponds user data to system interworking security rule data, and judges whether the user contract data is valid according to the system interworking security rule data.
  • the gateway home location register further includes an input device connected to the security rule configuration data storage module and the user interworking contract data storage module to complete data input and update.
  • the security rule selected by the user contract includes at least one or a combination of service area restrictions, cross-region service restrictions, and information exchange content restrictions.
  • the security rules set by the operator at least include one or more of whether the called user has signed up, whether the calling network element is a legal network element, whether the signaling cell is legal, whether the cell value is legal, or whether the service range is legal. Combination.
  • the network element having the function of obtaining user information is a mobile service switching center (MSC)
  • the network element having the function of obtaining user information is a service control point (SCP).
  • SCP service control point
  • the gateway home location register, the interface signaling protocol of the signaling transceiver module and the user information storage network element, and the interface signaling protocol of the signaling transceiver module and the network element with the function of obtaining user information may be the same, or Can be different.
  • a method for interacting with routing information of a roaming user includes the following steps:
  • the network element of the user roaming ground network that has the function of obtaining user routing information sends routing information request signaling to the GHLR of the user registered ground network;
  • the GHLR receives the information request and makes a judgment according to the GHLR security rules. If it meets the GHLR interworking security rules, it proceeds to step c. If it does not, it rejects the information request.
  • the GHLR interacts with the HLR of the home network to obtain routing information.
  • the GHLR judges the received routing information according to the interworking security rules. If the interworking security rules are met, the process proceeds to step 6. If the interworking security rules are not met, the information request is rejected;
  • the step b further includes:
  • the signaling transceiver module of the home location register of the user registration gateway After receiving the routing information request signaling from the roaming network, the signaling transceiver module of the home location register of the user registration gateway calls the system interworking security rule data storage module set by the operator to determine whether the request meets the operation. If the security rules set by the vendor are met, the process proceeds to step b12, otherwise it is rejected;
  • step bl2. Call the user interworking contract data storage module set by the user to determine whether the request complies with the security rules set by the user. If so, proceed to step c, otherwise refuse.
  • the step b further includes:
  • the signaling transceiver module of the home location register of the user registration gateway After receiving the routing information request signaling from the roaming ground network, the signaling transceiver module of the home location register of the user registration gateway calls the user interworking subscription data storage module set by the user to determine whether the request complies with the security rules set by the user If yes, go to step b22, otherwise refuse; b22. Invoke the system interworking security rule data storage module set by the operator to determine whether the request complies with the security rule set by the operator. If so, go to step c, otherwise refuse.
  • the present invention solves the problem of inter-network information exchange for roaming users by introducing a roaming user information security control device GHLR and a method of roaming user information interaction using the device in an existing mobile communication system, and can facilitate the visit of network pairs.
  • GHLR roaming user information security control device
  • FIG. 1 is a schematic diagram of a connection call of a roaming user communication service in the prior art
  • FIG. 1 is a schematic diagram of a GHLR network connection according to an embodiment of the present invention
  • Figure 3 is a schematic diagram of the internal functional module structure of a GHLR device
  • FIG. 4 is a structural diagram of a GHLR security rule configuration module
  • FIG. 5 is a flowchart of GHLR's internal security judgment processing for user information interaction
  • Fig. 6 is a schematic diagram of a connected call made by a roaming user using GHLR to control routing information interaction
  • Fig. 7 is a flowchart of internal security judgment processing in the embodiment of obtaining routing information through GHLR. detailed description
  • FIG. 2 it is a schematic diagram of the connection of the GHLR in the network according to the present invention. It can be seen from the figure that the GHLR of the present invention is connected to a user routing information storage network element of a user home network and a network element having a function of obtaining user routing information of a user roaming network.
  • the GHLR designed by the present invention may be an independent device or a device that adds the user information security control function of the GHLR.
  • the necessary structural modules are as follows:
  • the signaling transceiver processing module is connected to the user routing information storage network element of the user's home network and the network element of the user roaming network with the function of obtaining user routing information, and is responsible for receiving and sending between mobile communication network network elements.
  • Interface signaling that can transmit user information, such as the GSM network's No. 7 signaling system: MAP, CAP, etc., can communicate with designated mobile network network element signaling through data configuration, such as MSC Mobile-services Switching Center), HLR Home Location Register, etc., to complete the information exchange between the network element and the GHLR;
  • the user roaming network has a network element that has the function of obtaining user routing information, which can be an MSC or an intelligent network. SCP.
  • different signaling protocols can be used on both sides of the GHLR.
  • the user information request signaling uses one type of signaling
  • the interaction between the device and the user routing information storage network element can use a different signaling protocol.
  • the signaling transceiver processing module sends and receives signaling of different signaling protocols according to the configuration, analyzes the information in the received signaling and transmits it to the information security analysis module, and sends the instructions according to the appropriate signaling protocol to the information security analysis module. Order to external network elements.
  • Security rule configuration module System security rules and related data are stored in the security rule configuration database
  • Routing information security analysis module receives and stores the signaling transceiver processing module. Block signaling, identify and analyze the signaling request according to the security rules of the security rule configuration database, and send the reply signaling to the destination network element.
  • the security rule configuration module may further include:
  • Security rule data storage module stores interworking security rule logic of GHLR system
  • System interworking security rule data storage module stores interworking security rule data of the GHLR system
  • user contract interworking data storage module stores user interworking data
  • User contract data conversion module Corresponds user data to system interworking security rule data, and judges whether the user contract data is valid according to the system interworking security rule data.
  • the GHLR is also provided with an input device connected to the security rule configuration module, which is connected to the system interworking security rule database and the user interworking contract database, which is the so-called human-machine interface to complete the data update.
  • the system security rules described above include security rules set by the operator and security rules set by the user.
  • examples of the rules set by the operator include:
  • the contracted status of the called user's service (including querying its contracted data and valid time); whether the calling network element belongs to a legitimate network element (if there is a user's contract range, select user data to judge, otherwise judge the data set by the system);
  • the interworking security data signed by the user may include the following contents:
  • Service area restriction list The user selects the corresponding country, region or network service area routing optimization service area list to be involved in roaming; the corresponding relationship between these service areas and network elements is defined and set by the operator.
  • the user selects "UK", and the operator is responsible for setting the legal office corresponding to "UK". For example, routing optimization is only allowed within a certain number of service areas, and one service area can be a country Region, or a combination of several countries and regions-such as Europe, or Western Europe, or a combination of other countries and regions that may not have a geographical connection.
  • Cross-region service list Users can choose the regions that allow cross-region calls, such as "UK-France", which indicates that when roaming in France, the user hopes that calls originated in the United Kingdom can choose routing optimization for calls. You can also block certain cross-region calls. For example, if you choose "Europe" in a legal region, the international long-distance call from Switzerland to the UK may be more expensive than the long-distance cost of Switzerland-home country-UK. You can choose to block "Switzerland-UK" Cross-region calling.
  • the judgment rule may include some or all of the following elements:
  • Called user identification indicates whether the user has subscribed to the service.
  • Service valid time indicates that the service is valid for a limited time.
  • Calling network element list indicates whether the listed network element is a legal network element that is contracted.
  • Signaling list indicates that legal signaling is allowed. (For example, only SRI signaling can be allowed. Other signaling such as ATI and GHLR are considered illegal and rejected).
  • Cell list indicates that allowed cells are legal cells. (Used to determine whether the cells contained in a signaling are not allowed by the rules, such as subscription information, VMSC address, forwarded data, etc.)
  • Cell value list indicates that it is allowed to be a legal cell value. (For example, judging by the roaming number that the roaming user is not currently in the OR service area where the caller is located, the caller can be prompted by voice. If the user is not in the service area and cannot enjoy the service, please dial directly. The simple example is that the called party is not at the caller at this time.
  • Country After obtaining the information from the loop, it is judged that MSRN is not the number of the country visited by the roaming user or the number of the relevant country signed by the user, and the information is not allowed to be returned)
  • GHLR GHLR
  • whether the information is legal is determined based on the values of these elements corresponding to the security rules.
  • a PLMN can establish one or more GHLRs to handle roaming user information request signaling sent by other networks, and the GHLR has signaling connections with its own network and other networks.
  • the method for using the GHLR of the present invention to obtain the routing information of a roaming user may include the following steps: a.
  • a network element having a function of obtaining the user's routing information on the user's roaming ground network sends routing information request signaling to the GHLR of the user's registered ground network;
  • the GHLR receives the information request and makes a judgment according to the GHLR security rules. If it meets the GHLR interworking security rules, it proceeds to step c. If it does not, it rejects the information request.
  • the GHLR interacts with the HLR of the home network to obtain the requested information
  • the GHLR judges the received routing information according to the interworking security rules. If the interworking security rules are met, the process proceeds to step e. If the interworking security rules are not met, the request for information is rejected;
  • step b further includes:
  • the signaling transceiver module of the home location register of the user registration gateway After receiving the routing information request signaling from the roaming ground network, the signaling transceiver module of the home location register of the user registration gateway calls the system interworking security rules database set by the operator to determine whether the request meets the requirements set by the operator. If the security rules are met, go to step b2, otherwise, refuse;
  • the judgment sequence of the above steps bl and b2 can be reversed, which does not affect the acquisition of routing information.
  • the query between the security rule database set by the operator and the security rule database set by the user is not absolute.
  • the security rule database configured by the user may be queried first, and then Then query the security rule database configured by the operator, which does not actually affect the realization of the purpose of the present invention.
  • Step b is to judge the request information according to the security rules. It is to determine whether the request information meets the requirements and can be received.
  • Step d is to judge the retrieved routing information. To determine whether the routing information meets the requirements, and it can be sent to the requester, for example, the requester is in A, but the retrieved routing information is the route in B, so that the requester or the operator If the merchant chooses not to receive such a route in the rules set by the merchant, the route request is rejected in step d.
  • PLMNA the public land mobile network where B is roaming
  • PLMNB called user B's home public land mobile network
  • GMSCA is the gateway mobile switching center that provides services for calling A
  • VMSCB visits the mobile switching center to provide service to called B;
  • VLRB is a visited location register that provides service to called B;
  • HLRB home location register of B
  • the internal security judgment processing flow of GHLR for user information interaction includes the steps of judging whether the information request signaling conforms to the interworking security rules and the information response content conforms to the interworking security rules. Only when these two steps are passed, the requesting user can obtain the corresponding information.
  • FIG. 6 is an example of a connected call made by a roaming user using GHLR to control routing information interaction; the process of FIG. 6 is described below:
  • its communication service may include the following steps:
  • User B roams in the service area of PLMNA and VLRB.
  • User A in PLMNA dials B and the call is connected to GMSCA for processing.
  • GMSCA requests routing information from GHLR ⁇ in PLMNB
  • GHLR After GHLR judges that the security rules are met, it sends SRI request routing information to HLRB;
  • HLRB interacts with VLRB to obtain a roaming number and returns it to GHLR; 5.
  • the GHLR judges that the roaming number is the number of the country where the PLMNA is located, and the security rules are met, sends an SRI response to the GMSC, and sends the roaming number;
  • GMSCA connects the call to MSCB according to the roaming number.
  • FIG. 7 it is a flowchart of internal security judgment processing in the embodiment of obtaining routing information through GHLR.
  • the judgment processing flow of GHLR is described as follows:
  • GHLR After receiving the signaling from other networks, GHLR judges whether it is SRI according to the rules, otherwise it rejects it;
  • the roaming number After receiving the SRI response, if the roaming number is retrieved, determine whether it is the number of the country where the caller is located. If yes, send the number to the calling office. If not, send a failure message.
  • the present invention provides a feasible method for roaming user information interworking. For example, it can provide conditions for some countries, some operators, some roaming users, and specific time. Provide interoperability. The routing optimization that requires the communication of information among roaming users can be implemented, which can provide roaming users with higher quality and more reasonable roaming call services.

Description

一种关口归属位置寄存器及用户路由信息交互方法 技术领域
本发明涉及移动通信技术，尤其涉及移动通信中路由信息优化及控制技术。 技术背景
目前移动通信网的路由方案中， 在移动电话漫游过程中， 处于漫游状态的 移动用户， 其通话都要经过归属地和漫游地的移动网络建立通信话路， 由于通 信路由较长， 使得漫游服务的通话质量变差， 耗费的网络资源也较多， 而且费 用比非漫游状态的费用要高。 特别是用户处于国际漫游状态时， 接听任何呼叫 都是国际长途呼叫， 即此呼叫必须经过归属国和漫游国的移动网络建立的通信 话路完成， 漫游用户必需支付从归属国和漫游国家之间的国际长途费用， 即使 呼叫发起方和漫游用户近在咫尺。 例如一起旅游的同伴互相联系， 或拜访地的 移动、 固定用户联系该用户， 虽然相距很近， 也要通过上述的漫游方式来建立 话路连接， 而且由于建立的话路都是建立到归属国然后再迂回回来， 长途的国 际连接导致话音质量很差， 同时用户付出了双倍的国际长途费用， 如图 1所示, 该过程如下：
1、 B用户漫游在公用陆地移动网 A ( PLMN Public Land Mobile Network, 以下简称 PLMN ) ， 拜访位置寄存器 B ( VLR Visit Location Register ， 以下 简称 VLR )的服务区， PLMNA中的 A用户拨打 B，呼叫接续到关口 MSC A( GMSC Gateway Mobile-services Switching Center, 以下简称 GMSC )处理；
2、 GMSCA把呼叫路由到 PLMNB中的 GMSCB；
3、 GMSCB向归属位置寄存器 B ( HLR Home Location Register, 以下简称 HLR )发出取路由信息 （ SRI Send Routing Information )请求路由信息；
4、 HLRB向 VLRB请求漫游号码； 5、 VLRB漫游号码给 HLRB;
6、 HLRB返回漫游号码给 GMSCB;
7、 GMSCB根据漫游号码为 PLMNA所在国家的号码， 把呼叫路由到 GMSCA;
8、 GMSCA根据此漫游号码， 接续呼叫到 MSCB。
GSM和 UMTS(imiversal mobile telecommunication services)的技术规范中的 路由优化支持功能 (SOR support of optimal route，以下简称 SOR)方法对该问题 提出了由 GMSCA直接向 HLRB取路由信息的方案，但涉及到各运营商对用户信 息的保护问题没有解决， 目前基本没有应用。 按照当前的呼叫规范如果需要优 化路由一般都应该到归属网络取得漫游号码， 但国际漫游涉及到各运营商对 用户路由信息的保护问题没有解决， 路由优化服务目前无法规模开展和应用。 发明内容
本发明就是针对以上情况， 提出一种关口归属位置寄存器和使用该设备的 漫游用户路由信息交互方法。
一种关口归属位置寄存器（ GHLR Gateway Home Location Register ), 其 特征在于包括：
信令收发处理模块， 与归属网的用户信息存储网元及用户漫游地网络中具 有取得用户路由信息功能的网元连接， 接收信令请求和发送信令回应， 完成网 元与关口归属位置寄存器之间的信息交互；
安全规则配置模块， 存储关口归属位置寄存器系统的互通安全规则和相关 数据；
路由信息安全分析模块， 接收并存储信令收发处理模块送来的的信令信 息， 根据安全规则配置模块生成的安全规则对信令请求进行识别和分析， 并通 过信令收发处理模块将回复信令发送给目的网元。
所述的互通安全规则， 包括运营商设置的安全规则和用户签约选择的安全 规则。
所述的安全规则配置模块包括：
安全规则存储模块： 存储 GHLR系统的互通安全规则逻辑；
系统互通安全规则存储模块： 存储 GHLR系统的互通安全规则数据； 用户签约互通数据存储模块： 存储用户签约的互通数据；
用户签约数据转换模块： 把用户数据对应到系统互通安全规则数据， 并根 据系统互通安全规则数据判断用户签约数据是否有效。
所述的关口归属位置寄存器， 还包括一个与安全规则配置数据存储模块及 用户互通签约数据存储模块相连接的输入装置， 用来完成数据的输入与更新。
所述的用户签约选择的安全规则， 至少包括服务地域限制、 跨地域服务限 制和信息互通内容限制中的一个或者多个的组合。
所述的运营商设置的安全规则， 至少包括被叫用户是否签约、 主叫网元是 否是合法网元、 信令信元是否合法、 信元值是否合法、 服务范围是否合法中的 一个或者多个的组合。
所述的具有取得用户信息功能的网元是移动业务交换中心 （ MSC
Mobile-services Switching Center )。
所述的具有取得用户信息功能的网元是业务控制点 （ SCP )。
所述的关口归属位置寄存器， 信令收发处理模块与用户信息存储网元的接 口信令协议和信令收发处理模块与具有取得用户信息功能的网元的接口信令 协议可以是相同的， 也可以是不同的。
一种漫游用户路由信息交互方法， 其特征在于包括以下步骤：
a、 用户漫游地网具有取得用户路由信息功能的网元向用户注册地网的 GHLR发送路由信息请求信令；
b、 GHLR接收信息请求， 并按照 GHLR的安全规则进行判断， 如果符合 GHLR的互通安全规则， 进入步骤 c， 如果不符合， 拒绝本次信息请求；
c、 GHLR与归属网的 HLR交互获得路由信息； d、 GHLR根据互通安全规则对接收的路由信息进行判断， 如果符合互通安 全规则， 进入步骤6， 如果不符合互通安全规则， 拒绝本次信息请求；
e、 发送路由信息给用户漫游地网发出路由信息请求的网元。
所述的步骤 b进一步包括：
bl l、用户注册地关口归属位置寄存器的信令收发处理模块收到漫游地网发 来的路由信息请求信令后， 调用运营商设置的系统互通安全规则数据存储模 块， 判断该请求是否符合运营商设置的安全规则， 如果符合进入步骤 bl2， 否 则拒绝；
bl2、 调用用户设置的用户互通签约数据存储模块， 判断该请求是否符合用 户设置的安全规则， 如果符合， 进入步骤 c, 否则拒绝。
所述的步骤 b进一步包括：
b21、用户注册地关口归属位置寄存器的信令收发处理模块收到漫游地网来 的路由信息请求信令后， 调用用户设置的用户互通签约数据存储模块， 判断该 请求是否符合用户设置的安全规则， 如果符合， 则进入步骤 b22， 否则拒绝； b22、 调用运营商设置的系统互通安全规则数据存储模块， 判断该请求是否 符合运营商设置的安全规则， 如果符合则进入步骤 c, 否则拒绝。
本发明通过在现有的移动通信系统中， 引入漫游用户信息安全控制设备 GHLR和使用该设备的漫游用户信息交互的方法， 解决对漫游用户的的网间信 息互通的问题， 可以方便拜访网络对漫游用户业务的开展， 并保护归属网络运 营商和漫游用户的信息安全。 附图说明
图 1是现有技术中漫游用户通信服务接续呼叫的示意图；
图 1是本发明实施例中一个 GHLR的网络连接示意图；
图 3 是 GHLR设备的内部功能模块结构示意图；
图 4 是 GHLR安全规则配置模块的结构示意图； 图 5 是 GHLR对用户信息交互的内部安全判断处理流程图；
图 6 是采用 GHLR控制路由信息交互的漫游用户作被叫的接续呼叫示意图； 图 7 是通过 GHLR取路由信息实施例中， 内部安全判断处理流程图。 具体实施方式
下面结合说明书附图来说明本发明的具体实施方式。
如图 2所示， 是本发明 GHLR在网络中的连接示意图。 从图中可见， 本发明 的 GHLR与用户归属网的用户路由信息存储网元及用户漫游地网具有取得用户 路由信息功能的网元连接。
如图 3所示， 本发明设计的 GHLR, 可以是独立的设备， 也可以是增加了 GHLR的用户信息安全控制功能的设备， 其必要的结构模块如下：
信令收发处理模块： 该信令收发处理模块与用户归属网的用户路由信息存 储网元及用户漫游地网具有取得用户路由信息功能的网元连接， 负责接受和发 送移动通信网络网元之间可以传送用户信息的接口信令， 比如 GSM网络中的 7号信令系统： MAP, CAP等， 能够通过数据配置与指定的移动网络网元信令 互通， 比如移动交换中心（MSC Mobile-services Switching Center ), 归属位置 寄存器 （ HLR Home Location Register )等， 完成网元与 GHLR之间的信息 交互； 该用户漫游地网具有取得用户路由信息功能的网元， 可以是 MSC, 也 可以是智能网中的 SCP。 在交互中， GHLR两侧可以釆用不同的信令协议， 如 用户信息请求信令采用一种信令， 而该设备与用户路由信息存储网元的交互可 以采用与此协议不同的信令协议。信令收发处理模块按照配置收发不同信令协 议的信令， 分析收到的信令中的信息传送给信息安全分析模块， 对信息安全分 析模块送来的指示， 按照适当的信令协议发送信令到外部网元。
安全规则配置模块： 在该安全规则配置数据库中存储有系统安全规则和相 关数据；
路由信息安全分析模块： 该信息安全分析模块接收并存储信令收发处理模 块的信令， 根据安全规则配置数据库的安全规则对信令请求进行识别和分析 , 并将回复信令发送给目的网元。
如图 4该安全规则配置模块具体还可以包括：
安全规则数据存储模块： 存储 GHLR系统的互通安全规则逻辑；
系统互通安全规则数据存储模块： 存储 GHLR系统的互通安全规则数据； 用户签约互通数据存储模块： 存储用户签约的互通数据；
用户签约数据转换模块： 把用户数据对应到系统互通安全规则数据， 并根 据系统互通安全规则数据判断用户签约数据是否有效。
该 GHLR还设置有一个与安全规则配置模块连接的输入装置， 连接于系统 互通安全规则数据库和用户互通签约数据库， 也即是所谓的人机界面， 用来完 成数据的更新。
以上所述的系统安全规则， 包括运营商设置的安全规则和用户设置的安全 规则， 其中， 运营商设置的规则举例有：
被叫用户该服务的签约情况（包括查询其签约数据和有效时间 )； 主叫网元是否属于合法网元（如果有用户签约范围选择用户数据判断， 否 则判断系统设置的数据）； '
主叫网元信令是否合法 （可以根据安全要求禁止某些信令的通过， 比如任 意时间信息查询信令 ATI - Anytime information)
该信令的信元是否合法， 各信元的值是否合法 （可以根据安全要求禁止某 些信元的通过， 比如闭合用户群相关信元， 位置信息， 被叫 MSI等）
服务范围是否合法 （主叫和被叫所在的地区是否跨出了合法服务范围） 用户签约的互通安全数据可以包括以下一些内容：
服务地域限制列表： 用户选择漫游要涉及的相应的国家， 地区或网络服务 区等路由优化服务区域列表； 这些服务区域具体与网元的对应关系由运营商定 义和设置。 用户选择 "英国" ， 运营商负责设置 "英国"对应的合法局点。 比 如只允许某几个服务区范围内开展路由优化，其中一个服务区可以是一个国家 地区， 或几个国家地区的组合- -比如欧洲， 或西欧， 也可以是其他地理地域 上可以没有联系的国家地区的组合。
跨地域服务列表： 用户可以选择的允许跨地域呼叫的地区， 如 "英国 -法 国"，说明用户在法国漫游时希望英国发起的呼叫可以选择路由优化进行呼叫。 也可以禁止某些跨地区的呼叫， 比如在合法地域选择了 "欧洲"但瑞士到英国 的国际长途， 可能比瑞士-归属国 -英国的长途费用要贵， 用户可以选择禁止 "瑞士-英国" 的跨地区呼叫。
信息互通内容范围限制 （列出允许互通的内容范围， 比如只允许路由信息 中的漫游号码， 不允许返回前转号码等其他信息， 这些数据对应信令中的特定 信元）
其中， 判断规则可以包含如下的部分或全部要素：
( 1 )被叫用户标识： 表明该用户是否签约了该项服务。
( 2 )业务有效时间： 表明该服务有效的签约时间限制。
( 3 )主叫网元列表： 表明所列网元是否为签约的合法网元。
( 4 )信令列表： 表明允许为合法的信令。 （比如可以只允许 SRI信令， 其 他信令比如 ATI等来 GHLR都视为非法予以拒绝） 。
( 5 )信元列表： 表明允许为合法的信元。 （用于判断一个信令中包含的信 元是否有规则不允许的， 比如签约信息， VMSC地址， 前转数据等）
( 6 )信元值列表： 表明允许为合法的信元值。 （比如根据漫游号码判断漫 游用户目前不在主叫所在的 OR服务区域， 则可以语音提示主叫， 目前用户不 在该服务区域不能享受该服务请直接拨打。 简单的例子是此时被叫不在主叫的 国家： 取回路由信息后判断 MSRN不是漫游用户拜访国的号码或用户签约的相 关国家号码， 则不允许该信息送回）
还可以包括其他运营商认为必要的规则要素。
这些要素以及各要素的组合，是制定对应的安全规则的基础， GHLR运行中 根据安全规则对应的这些要素的值来判断信息是否合法。 在实际应用中， 一个 PLMN可以建立 1个或多个 GHLR来处理它网送来的 漫游用户信息请求信令， GHLR与本网和它网有信令连接。
使用本发明的 GHLR来取得漫游用户路由信息的方法，可以包括以下步骤： a、 用户漫游地网具有取得用户路由信息功能的网元向用户注册地网的 GHLR发送路由信息请求信令；
b、 GHLR接收信息请求， 并按照 GHLR的安全规则进行判断， 如果符合 GHLR的互通安全规则， 进入步骤 c， 如果不符合， 拒绝本次信息请求；
c、 GHLR与归属网的 HLR交互获得请求信息；
d、 GHLR根据互通安全规则对接收的路由信息进行判断， 如果符合互通安 全规则， 进入步骤 e， 如果不符合互通安全规则， 拒绝本次信息请求；
e、 发送路由信息给用户漫游地网发出路由信息请求的网元。
上述的步骤 b进一步包括：
bl 1、用户注册地关口归属位置寄存器的信令收发处理模块收到漫游地网来 的路由信息请求信令后， 调用运营商设置的系统互通安全规则数据库， 判断该 请求是否符合运营商设置的安全规则， 如果符合进入步骤 b2， 否则拒绝；
Μ2、 调用用户设置的用户互通签约数据库， 判断该请求是否符合用户设置 的安全规则， 如果符合， 进入步骤 c， 否则拒绝。
实际上上述步骤 bl和 b2的判断先后顺序是可以调换的， 这不影响路由信息 的取得。 对于漫游用户信息安全控制设备来讲， 该运营商设置的安全规则数据 库与用户个人设置的安全规则数据库的查询， 其先后关系不是绝对的， 比如也 可以先查询用户个人配置的安全规则数据库， 随后再查询运营商配置的安全规 则数据库， 这些实际上不影响本发明目的的实现。
上述步骤 d的判断内容与步骤 b是不同的， 步骤 b是对请求信息进行根据安全 规则的判断， 判断的是请求信息是否符合要求， 是否可以接收， 步骤 d是对取 回的路由信息进行判断， 判断该路由信息是否符合要求， 可以发送给请求人， 比如请求人在 A地， 但取回的路由信息是 B地的路由， 这样， 请求人或者运营 商如果在其设置的规则中选择此种路由不接收， 则步骤 d中拒绝本次路由请求。 我们看一个具体的实例：
现有一个用户 B， 漫游至 A地， 有通信服务要求， 我们做如下限定：
PLMNA 被叫 B漫游所在地的公共陆地移动网络；
PLMNB 被叫用户 B的归属公共陆地移动网络；
GMSCA 为主叫 A提供服务的关口移动交换中心；
VMSCB 为被叫 B提供服务的拜访移动交换中心；
VLRB为被叫 B提供服务的拜访位置寄存器；
HLRB被叫 B的归属位置寄存器；
我们在 GSM网络建立一个 GHLR, 与 PLMNA的 GMSCA和 PLMNB的 HLR通 过信令连接， 此例中假设 PLMNB的运营商设置的规则为： 只允许用户信令请 求的信令为 SRI(send routing information -取路由信息），主叫局点必须在符合安 全规则局点清单； 被叫必须有签约记录， 只允许返回属于主叫国家 （PLMNA 所在国家） 的漫游号码。
如图 5所示， 是本发明的一个实施例， GHLR对用户信息交互的内部安全 判断处理流程。 从图中可以看到， 其包括了判断信息请求信令是否符合互通安 全规则和信息响应内容是否符合互通安全规则的步骤， 只有这两个步骤都通 过， 请求用户才能得到相应的信息。
图 6是采用 GHLR控制路由信息交互的漫游用户作被叫的接续呼叫实施例； 下面对图 6的过程说明：
如上条件， 在本发明的思想下， 其通信服务可以包括以下步骤：
1、 B用户漫游在 PLMNA, VLRB的服务区， PLMNA中的 A用户拨打 B, 呼 叫接续到 GMSCA处理；
2、 GMSCA向 PLMNB中的 GHLR^出 SRI请求路由信息；
3、 GHLR判断安全规则符合后， 向 HLRB发出 SRI请求路由信息；
4、 HLRB与 VLRB交互获得漫游号码， 返回给 GHLR; 5、 GHLR判断漫游号码为 PLMNA所在国家的号码， 安全规则符合， 向 GMSC 出 SRI响应， 送出漫游号码；
6、 GMSCA根据此漫游号码， 接续呼叫到 MSCB。
如图 7所示，是通过 GHLR取路由信息实施例中，内部安全判断处理流程图， GHLR的判断处理流程说明如下：
1、 GHLR收到它网来的信令后， 根据规则判断是否为 SRI,否则拒绝；
2、 如果是 SRI判断其中的 GMSC地址是否符合安全规则， 否则拒绝；
3、 判断被叫是否签约， 签约的内容是否符合；
4、 判断其他信元是否符合安全规则， 是否有不允许的信元存在， 可以选择 忽略或拒绝。 忽略则在向本网 HLR^起 SRI时， 丟弃这个信元；
5、 如果以上判断符合安全规则则向 HLR发起 SRI请求；
6、 收到 SRI响应后， 如果取回的是漫游号码则判断是否是主叫所在国家的 号码， 是则发送该号码给主叫局， 不是则发送失败信息。
7、 收到 SRI响应后， 如果是取路由信息失败， 则发送相应的失败信息给主 叫局， 可以根据运营商的配置规则选择是否屏蔽某些不允许的失败原因后发 送。
本发明通过对漫游用户信息请求和响应信令的控制， 提供了一种可行的漫 游用户信息互通方法 ， 比如， 可以提供对部分国家， 部分运营商， 对部分漫 游用户， 特定的时间等条件下提供互通。 使需要漫游用户信息互通的路由优化 能够实施， 从而可以为漫游用户提供质量更高价格更合理的漫游呼叫服务。
以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不局 限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应该以权利要求书的保护范围为准。

Claims

权利要求书
1、 一种关口归属位置寄存器（ GHLR Gateway Home Location Register )， 其特征在于包括：
信令收发处理模块， 与归属网的用户信息存储网元及用户漫游地网络中具 有取得用户路由信息功能的网元连接， 接收信令请求和发送信令回应， 完成网 元与关口归属位置寄存器之间的信息交互；
安全规则配置模块， 存储关口归属位置寄存器系统的互通安全规则和相关 »；
路由信息安全分析模块， 接收并存储信令收发处理模块送来的的信令信 息， 根据安全规则配置模块生成的安全规则对信令请求进行识别和分析， 并通 过信令收发处理模块将回复信令发送给目的网元。
2、 如权利要求 1所述的关口归属位置寄存器， 其特征在于所述的互通安全 规则， 包括运营商设置的安全规则和用户签约选择的安全规则。
3、 如权利要求 2所述的关口归属位置寄存器， 其特征在于所述的安全规则 配置模块包括：
安全规则存储模块： 存储 GHLR系统的互通安全规则逻辑；
系统互通安全规则存储模块： 存储 GHLR系统的互通安全规则数据； 用户签约互通数据存储模块： 存储用户签约的互通数据；
用户签约数据转换模块： 把用户数据对应到系统互通安全规则数据， 并根 据系统互通安全规则数据判断用户签约数据是否有效。
4、 如权利要求 3所述的关口归属位置寄存器， 其特征在于还包括一个与安 全规则配置数据存储模块及用户互通签约数据存储模块相连接的输入装置，用 来完成数据的输入与更新。
5、 如权利要求 2所述的关口归属位置寄存器， 其特征在于所述的用户签约 选择的安全规则， 至少包括服务地域限制、 跨地域服务限制和信息互通内容限 制中的一个或者多个的组合。
6、 如权利要求 2所述的关口归属位置寄存器， 其特征在于所迷的运营商设 置的安全规则， 至少包括被叫用户是否签约、 主叫网元是否是合法网元、 信令 信元是否合法、信元值是否合法、服务范围是否合法中的一个或者多个的组合。
7、 如权利要求 1所述的关口归属位置寄存器， 其特征在于所述的具有取得 用户信息功能的网元是移动业务交换中心 （ MSC Mobile-services Switching Center )。
8、 如权利要求 1所述的关口归属位置寄存器，其特征在于所述的具有取得 用户信息功能的网元是业务控制点（SCP )。
9、 如权利要求 1所述的关口归属位置寄存器， 其特征在于信令收发处理模 块与用户信息存储网元的接口信令协议和信令收发处理模块与具有取得用户 信息功能的网元的接口信令协议可以是相同的， 也可以是不同的。
10、 一种漫游用户路由信息交互方法， 其特征在于包括以下步骤： a、 用户漫游地网具有取得用户路由信息功能的网元向用户注册地网的 GHLR发送路由信息请求信令；
b、 GHLR接收信息请求， 并按照 GHLR的安全规则进行判断， 如果符合 GHLR的互通安全规则， 进入步骤 c, 如果不符合， 拒绝本次信息请求；
c、 GHLR与归属网的 HLR交互荻得路由信息；
d、 GHLR根据互通安全规则对接收的路由信息进行判断， 如果符合互通安 全规则， 进入步骤 e， 如果不符合互通安全规则， 拒绝本次信息请求；
e、 发送路由信息给用户漫游地网发出路由信息请求的网元。
11、 如权利要求 10所述的漫游用户路由信息交互方法， 其特征在于所述的 步骤 b进一步包括：
bl l、用户注册地关口归属位置寄存器的信令收发处理模块收到漫游地网发 来的路由信息请求信令后， 调用运营商设置的系统互通安全规则数据存储模 块， 判断该请求是否符合运营商设置的安全规则， 如果符合进入步骤 bl2， 否 则拒绝；
bl2、 调用用户设置的用户互通签约数据存储模块， 判断该请求是否符合用 户设置的安全规则， 如果符合， 进入步骤 c, 否则拒绝。
12、 如权利要求 10所述的漫游用户路由信息交互方法， 其特征在于所述的 步骤 b进一步包括：
b21、用户注册地关口归属位置寄存器的信令收发处理模块收到漫游地网来 的路由信息请求信令后， 调用用户设置的用户互通签约数据存储模块， 判断该 请求是否符合用户设置的安全规则， 如果符合， 则进入步骤 b22, 否则拒绝； b22、 调用运营商设置的系统互通安全规则数据存储模块， 判断该请求是否 符合运营商设置的安全规则， 如果符合则进入步骤 c， 否则拒绝。
PCT/CN2003/000770 2002-09-13 2003-09-12 Registre de localisation des passerelles et procede d'echange d'informations relatives a l'acheminement des abonnes WO2004025981A1 (fr)

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AU2003264317A AU2003264317A1 (en) 2002-09-13 2003-09-12 A gateway home location register and a method of subscriber's routing information exchange
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EP1551196A1 (en) 2005-07-06
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