WO2007095836A1 - A method for equality accessing in the packet network and the system thereof - Google Patents

A method for equality accessing in the packet network and the system thereof Download PDF

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Publication number
WO2007095836A1
WO2007095836A1 PCT/CN2007/000411 CN2007000411W WO2007095836A1 WO 2007095836 A1 WO2007095836 A1 WO 2007095836A1 CN 2007000411 W CN2007000411 W CN 2007000411W WO 2007095836 A1 WO2007095836 A1 WO 2007095836A1
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WO
WIPO (PCT)
Prior art keywords
routing
user
routing policy
label
initial
Prior art date
Application number
PCT/CN2007/000411
Other languages
French (fr)
Chinese (zh)
Inventor
Bo Zheng
Youzhu Shi
Shibi Huang
Original Assignee
Huawei Technologies Co., Ltd.
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Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007095836A1 publication Critical patent/WO2007095836A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • the present invention relates to access technologies for packet networks, and more particularly to methods and systems for achieving equal access in packet networks. Background of the invention
  • Equal access is a concept put forward in the environment of multiple operators. The essence of this is that a user (or a consumer) can, in an informed manner, be able to select different operators to serve them according to their own wishes.
  • the user can select an optimal access route according to the destination number, communication quality requirement, communication time, price, and the like.
  • a more common practice is to provide equal access services in the network. Users can sign different operators for different services.
  • the network can complete the operator's choice according to the user's contract signing intention.
  • the method of selecting an operator is generally called pre-selection.
  • the switching device In existing fixed networks, equal access is achieved by augmenting user attributes. In order to describe and record that users use different networks (or operators) under different services, add a m*n matrix table, where m represents the number of networks and n represents the number of services. Provides network options for up to n types of services, each offering the possibility to select m networks. In this way, the switching device records the contracted carrier data of the user's various services. When the user requests the service, the switching device analyzes the service attribute, selects the corresponding contracting operator in the matrix table according to the service attribute, and selects the route according to the selected contracting operator, and sends the service request to the selected carrier network.
  • the existing method of achieving equal access in a mobile network differs from the method of achieving equal access in a fixed network only in that MAP support is required for equal access in a mobile network.
  • the service contract data is transmitted by the service contractor, and the MSC (home domain and visited domain) is required to select a route according to the service contracting carrier.
  • Embodiments of the present invention provide a method and system for implementing equal access in a packet network, and achieve equal access of the network in a packet telecommunication network using SIP as a call control signaling of a core network.
  • a method for achieving equal access in a packet network including:
  • another method for achieving equal access in a packet network including:
  • the initial routing rule is executed upon receipt of the user call request message.
  • a system for achieving equal access in a packet network includes:
  • the first logical network element stores the equal access subscription data of the user, according to the equal access of the user Entering the subscription data to obtain the routing policy of the user, and carrying the routing policy in the call request message;
  • the second logical network element receives the call request message carrying the routing policy, and selects a route of the user subscription carrier according to the routing policy.
  • a system for achieving equal access in a packet network includes a service call session control function unit, configured to obtain a routing policy of a user according to the pre-stored equal access subscription data of the user; The user equally accesses the subscription data and the initial routing rule of the corresponding routing policy; and when the user call request message is received, the initial routing rule is executed.
  • a service call session control function unit for implementing equal access in a packet network includes: a setting unit, configured to obtain a routing policy of the user according to the pre-stored equal access subscription data of the user, And setting an initial routing rule including the user equal access subscription data and a corresponding routing policy; and an execution unit, when the user call request message is received, executing the initial routing rule.
  • the method and system for equal access in a packet network provided by the embodiments of the present invention enable an end user to select equal access in a packet network, and can independently select a service operator, and have basic service features in a traditional telecommunication network. Good inheritance, while ensuring the fairness of competition.
  • FIG. 1 is a schematic diagram of a network logical structure of a packet core network according to the present invention.
  • FIG. 2 is a schematic diagram of a signaling routing path according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of a signaling routing path according to Embodiment 5 of the present invention
  • 4 is a schematic diagram of a signaling routing path according to Embodiment 6 of the present invention
  • FIG. 5 is a schematic diagram of a signaling routing path when the first logical network element A and the second logical network element B are the same BGCF according to Embodiment 7 of the present invention.
  • FIG. 6 is a fifth schematic diagram of a signaling routing path of a method when a first logical network element A and a second logical network element B are the same BGCF according to Embodiment 7 of the present invention. Mode for carrying out the invention
  • the method for equal access in a packet network uses SIP as the call control signaling, and the network logical structure of the packet core network is shown in FIG. 1 , which is based on the European Telecommunications Standards Institute (ETSI, European Telecommunications).
  • ETSI European Telecommunications Standards Institute
  • TISPAN Internet Converged Services and Protocols for Advanced Networking
  • NTN Next Generation Network
  • the terminal accesses the packet core network through the network access unit, and the network access unit provides functions such as registration authentication and authentication, and the network access unit and the service call session control function (Serving-CSCF, Serving Call Session Control Function)
  • the El interface between the CSCFs is a SIP interface.
  • the network access unit may be a proxy call session control function (P-CSCF, Proxy-Call Session Control Function), access to a SIP terminal, or an access gateway control function (AGCF, Access Gateway). Control Function), access to traditional ordinary telephone service (POTS) terminals and ISDN terminals.
  • P-CSCF proxy call session control function
  • AGCF Access Gateway
  • Control Function access to traditional ordinary telephone service (POTS) terminals and ISDN terminals.
  • An application server (AS, Application Server) that implements equal access provides users with equal access subscription data, thereby providing routing policy data for the user to select the operator; and the S-CSCF actually processes the network session state.
  • Egress gateway control function (BGCF, Breakout Gateway Control Function) Select the network where the MGCF enters the PSTN.
  • the Media Gateway Control Function (MGCF, Media Gateway Control Function) communicates with the CSCF through the BGCF, and selects the CSCF based on the routing number of the incoming call from the legacy network.
  • the Interconnection Border Control Function (IBCF) is an interworking boundary function entity of the control plane between two operating networks.
  • the first embodiment of the present invention will be described in detail based on the above-mentioned NGN system, in a packet telecommunication network using SIP as the core network call control signaling, how the terminal user will sign the service operator, and the packet network uses the corresponding service when the terminal user uses the corresponding service.
  • the service request should be sent to the corresponding carrier network.
  • the first logical network element A in the network stores the equal access subscription data of the user, and the network element A obtains the routing policy of the user according to the equal access subscription data of the user, and the second logical network element B is obtained according to the obtained
  • the routing policy of the user completes the routing function for the subscriber contracted carrier.
  • the equal access subscription data is the business logic data of the contracted equal access service, and may include the user's selection of a specific network (or operator) for different services and/or applications, and the selection gives the corresponding specific service, and the user selects
  • the specific carrier information can be routed to the carrier network based on the information.
  • the network element A may be an access gateway control function (AGCF, Access Gateway Control Function), or an S-CSCF, or an equal access AS, or a BGCF, or an IBCF;
  • the network element B may be an S-CSCF, Or BGCF, or IBCF.
  • AGCF Access Gateway Control Function
  • S-CSCF Access Gateway Control Function
  • the network element A and the network element B may not be the same BGCF or IBCF, but an interoperable BGCF or IBCF.
  • the network element A is the S-CSCF
  • the network L A and the network element B should be the same S-CSCF.
  • the AGCF or the equal access AS obtains the routing policy of the user according to the equal access subscription data of the user, and then carries the routing policy in the call signaling, such as the SIP INVITE message, and then The network element B performs routing according to the routing policy.
  • the call signaling may carry a new destination address indicating the contracting operator, or directly Carry the address of the network element that has arrived at the contracting carrier, so that the call arrives at the contracting carrier according to the specified routing path.
  • the destination address dialed by the user is 0-755-6540808, the operator that the user chooses to provide long-distance service is China Unicom, and the call is carried in the call signaling after the AGCF or the equal access to the AS.
  • the destination address becomes 193-755-6540808.
  • the call signaling directly carries the network element address that arrives at the contracting carrier, so that the call arrives at the designated carrier according to the specified routing path, if the call passes the equal access to the AS, the call signaling, such as SIP, is sent.
  • the INVITE message can directly carry the address of the contract carrier's ingress network element IBCF in the Route header field.
  • the signing The data can be stored and managed as a service application data; when the first network element A is an S-CSCF, that is, when the subscription data is on the S-CSCF, the S-CSCF is independent of the service application in the standard definition. It cannot be stored and managed as a kind of business application data.
  • the S-CSCF can adopt a signing mechanism similar to the initial filtering rule (iFC, Initial Filter Criteria) defined by the current standard, and the equal access subscription data is used as a kind.
  • Extended user routing subscription data is stored and managed in the Home Subscriber Server (HSS).
  • an initial route rule iRC, Initial Route Criteria
  • the signaling path is as shown in Figure 2.
  • the network planning or configuration means allows all outgoing messages to pass through the IBCF of the local domain.
  • the iFC subscription data defined by the current standard indicates the initial filtering rule triggered by the user's service.
  • the iFC subscription data sets a series of filtering rules and an AS address corresponding to each filtering rule, and the filtering rule is carried in the SIP message.
  • S-CSCF passes the filter rule Match, get the address of the AS providing the service.
  • this embodiment extends an initial routing rule (iRC, Initial Route Criteria).
  • iRC Initial Route Criteria
  • a set of filtering rules and a routing address corresponding to each filtering rule are set in the iRC subscription data, and the expression of the filtering rule may be identical to the iFC and may be carried in the SIP message.
  • the S-CSCF obtains the next or several backward network element addresses by matching the filtering rules.
  • the S-CSCF downloads the iRC from the HSS.
  • the HSS actively updates to the S-CSCF.
  • iRC uses Extensible Markup Language (XML) encoding, including:
  • the private identification label and the routing configuration label are included; in the private identification label, the user private identity is given; in the routing configuration label, the user public identity label and the route filtering rule label are included;
  • the uniform resource identifier and/or the telephone uniform resource locator of the user session initialization protocol are given; in the route filtering rule label, the trigger point label and the routing policy information label are included; in the trigger point label, the service point trigger is given The relationship between the device relationship and the service point trigger; in the routing policy information tag, the routing policy that matches the description of the service point trigger is given; in the service point trigger tag, the environment description tag, the service point trigger group tag, and the service are included.
  • the point trigger matches the condition.
  • the service point trigger matching condition includes:
  • Session initialization protocol method tag used to indicate the type of the request
  • Session condition tag used to give three possible values of the session, including session start, session termination, and session termination are not registered
  • a normal expression is used to describe each service point trigger.
  • Service point triggers can be associated with a Conjunctive Normal Form and a Disjunctive Normal Form.
  • use the or (Or ) operation to connect different matching conditions in the same group, and then use the (And ) operation to connect the matching conditions of different groups.
  • use a separate normal expression to associate a service point trigger first use the (And ) operation to connect different matching conditions in the same group, and then use the or (Or ) operation to connect the matching conditions of different groups.
  • routing policy information label routing policy information matching the description of the service point trigger is given, where the routing policy information includes one or more hops that the policy routing needs to pass.
  • the tag ⁇ PrivateID> gives the user private ID
  • the tag ⁇ RouteProfile> can describe the user public identity ⁇ PublicIdentity> and the route filtering rule ⁇ InitialRouteCriteria>.
  • the user SIP URI and tel URL can be given.
  • the current route filtering rule trigger point is given.
  • the route ⁇ NextHops> that needs to pass after the matching is triggered.
  • the route that needs to pass after the triggering may be an entity, or Multiple entities, using the tag ⁇ HopName> gives the address of the entity.
  • a normal expression can be used to describe each service point trigger (SPT).
  • a Conjunctive Normal Form (CNF) is used, and each ⁇ 01"0 ⁇ > is connected with and, and an OR connection is used between each ⁇ Group> SPT.
  • CNF Conjunctive Normal Form
  • each ⁇ 01"0 ⁇ > is connected with and, and an OR connection is used between each ⁇ Group> SPT.
  • ⁇ 0)1 ⁇ 1 01 ⁇ 6 ⁇ &16 (1> is 1, indicating the current SPT, , NOT,,.
  • the matching can include:
  • Request U I (label ⁇ RequestU I> ) to identify the resource pointed to by the request;
  • the SIP message header (label ⁇ SIPHeader>) contains information related to the request. Among them, you can use the tag ⁇ Header> to describe the message header and ⁇ Content> to describe the message header content.
  • the ⁇ Content> description syntax is similar to iFC, for example, "Joe”: indicates that the given message header strictly matches the string "J 0e ,,, "(Jo).*”: indicates that the given message header uses the string " Jo "Beginning, and ".*Jo.*,,: indicates that the given message header contains the substring "Jo" anywhere.
  • Session case (label ⁇ SessionCase> ), giving three possible values for the session, enumeration Next:
  • Originating 0, indicating the start of the session
  • Terminating 1, indicating session termination
  • the session description (label ⁇ SessionDescription> ) defines a service point trigger for the contents of any SDP field within the SIP method body.
  • the syntax is consistent with the above ⁇ Content ⁇ method.
  • DFF Disjunctive Normal Form
  • the label ⁇ HopName>sip:IBCF@long.com ⁇ /HopName> gives the next hop that the request needs to reach after matching the initial routing rule, and the IBCF whose domain name is the long.com network.
  • the tag ⁇ HopName> multiple times, giving the hop addresses you want to arrive in order.
  • the entity given in the above address may be a loose route or a strict route, that is, according to the looseness and strict conditions of the selected route.
  • the iRC may use the CX reference point (the 3GPP defines the HSS and the S-CSCF interface to be Cx), and after receiving the S-CSCF server allocation request (SAR, Server-Assignment-Request) command, use the server to assign a response (SAA, Server). - Assig ⁇ ent-Answer ) command sends the iRC to the S-CSCF.
  • SAR S-CSCF server allocation request
  • SAA Server-Assignment-Request
  • the HSS may also send a Push-Profile-Request (PPR, Push-Profile-Request) command to the S-CSCF to request to update the iRC in the S-CSCF.
  • PPR Push-Profile-Request
  • the S-CSCF will update the iRC data as soon as it receives the PPR command.
  • the S-CSCF will send a push configuration response (PPA, Push-Profile-Answer) command, simply indicating S- The CSCF updates the results of the iRC, such as success or failure.
  • PPA Push-Profile-Answer
  • the S-CSCF when the S-CSCF receives the call request from the user, when the iRC is executed, if the iFC is triggered at the same time, the S-CSCF shall execute the iFC first, and then execute the iRC after executing the iFC. If the Route header field already exists in the call request message when the iRC is executed, the S-CSCF performs the trigger iRC. If the iRC matches, the next hop (or multi-hop) given in the iRC can be added to the existing Route header field. , can be added to the top of the Route header address list, or can be added to the bottom of the list. The S-CSCF sends a call request message to the next hop according to the route in the Route header field.
  • the Route header field does not exist in the request message. If the iRC matches, the S-CSCF adds a Route header field to the call request message, and carries the next hop (or multi-hop) given in the iRC to the call request. The Route header field of the message, and parse the Route header field The top address of the address list, as the next hop to send a call request message. The S-CSCF can also send the address of the next hop directly to the 4 bar call request message without adding the Route header field to the call request message.
  • the first logical network element A in the embodiment of the present invention stores the equal access subscription data of the user, and obtains the routing policy of the user according to the equal access subscription data of the user, and then is completed by the second logical network element B.
  • the routing function for the subscriber's contracted carrier. iRC is a method to implement S-CSCF to implement routing policies. Other methods can also be used to implement routing policies.
  • the first logical network element A is an AGCF (accessing a traditional PSTN/ISDN user)
  • the destination address dialed by the user is 0-755-6540808
  • the user needs to select an operator for providing long-distance service.
  • the new destination address carried in the call signaling is changed to 193-755-6540808.
  • the S-CSCF attempts to convert tel UKL 193-755-6540808 into a SIP URI, and after the conversion fails, routes the call to the BGCF.
  • the BGCF performs the number analysis, selects the MGCF into the circuit switched (CS, Circuit Switch) domain, and selects the China Unicom network corresponding to 193 in the CS domain as the long-distance service provider, and its signaling routing path (omitting other service situations) is as shown in FIG. Show.
  • the S-CSCF when the first logical network element A is equally connected to the AS, the S-CSCF first performs equal access to the iFC, and routes the call to the equal access AS corresponding to the iFC. Equally access the AS to execute the business logic, add the Route header field to the call request message, give the user subscription service carrier address in the Route header field, and return the call request message to the S-CSCF.
  • the S-CSCF parses the Route header field in the request message, obtains the address of the user subscription service carrier, and completes the routing.
  • the signaling path is as shown in FIG. 4, wherein when the called user belongs to another operating network, all the outgoing messages are passed through the IBCF of the local domain through network planning or configuration means; when the called user belongs to the CS domain user
  • the AS performs the number change and inserts the contracted carrier identifier.
  • the AS can use the Route message in the request message. Increase the subscription carrier network IBCF address in the header field.
  • the second logical network element B may be the same BGCF1.
  • the user subscription data is saved in the BGCF1, and the subscription user routing policy is obtained according to the user subscription data, and then the call request message is sent to the BGCF2 of the subscriber service provider network according to the subscription user routing policy.
  • the first logical network element A and the second logical network element B may also be interworking BGCFs.
  • the first logical network element A is IBCF1 (IBCF of the local domain) as shown in FIG. 6, the second logical network element B may be the same IBCF1.
  • the user subscription data is saved in the IBCF1, and the subscription user routing policy is obtained according to the user subscription data, and then the call request message is sent to the IBCF2 of the user subscription service operator network according to the subscription user routing policy.
  • the first logical network element A and the second logical network element B may also be interworking IBCFs.
  • the embodiment of the invention further discloses a system for implementing equal access in a packet network, comprising a first logical network element and a first logical network element.
  • the first logical network element stores the user's equal access subscription data in the first logical network element in the network, and the first logical network element obtains the user's routing policy according to the user's equal access subscription data; the first logical network element is received.
  • the routing policy of the user is applied; the second logical network element selects the route of the user subscription carrier according to the routing policy.
  • the first logical network element may be an AGCF, or an S-CSCF, or an AS, or a BGCF, or an IBCF; the second logical network element may be an S-CSCF, or a BGCF, or an IBCF.
  • the first logical network element is a BGCF or an IBCF
  • the first logical network element and the second logical network element may be the same BGCF or IBCF, or may not be the same BGCF or IBCF, but an interworking BGCF or IBCF.
  • the first logical network element is the S-CSCF
  • the first logical network element and the second logical network element of the network element should be the same S-CSCF.
  • a first S-CSCF and a second S-CSCF are included.
  • the first S-CSCF and the second S-CSCF are the same S-CSCF.
  • the first S-CSCF stores the user's equal access subscription data, and the first S-CSCF obtains the user's routing policy according to the user's equal access subscription data; the first S-CSCF receives the user call When the message is requested, an initial routing rule is executed; the second S-CSCF selects a route of the subscriber contracting carrier according to the routing policy.
  • the S-CSCF may include a setting unit and an execution unit, and the setting unit may obtain a routing policy of the user according to the pre-stored equal access subscription data of the user, and set equal access including the user.
  • the initial routing rule of the subscription data and the matching routing policy; and the executing unit may obtain the set initial routing rule from the setting unit when the user call request message is received, and execute the initial routing rule.
  • the initial routing rule includes a user equal access subscription data and a routing policy corresponding to the user equal access subscription data.
  • the initial routing rules are specifically described in the same manner as the foregoing embodiments.
  • an end user uses equal access, and can independently select a service operator, which has good inheritance to basic service features in a traditional telecommunication network, and also ensures fairness of competition.
  • the method of the present invention also provides an initial routing rule by which the S-CSCF can complete the routing policy based on the subscriber subscription data.

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Abstract

A method for equality accessing in the packet network is used in the packet telecommunication network that the Session Initiation Protocol is regarded as the core network call control signalling, and includes the steps of: obtaining the route policy of a user based on the pre-stored equality accessing contract data; selecting a route of the operator contracted by the user based on the route policy. Also another method for equality accessing in the packet network, a system for implementing equality accessing in the packet network and a service call session control function unit for implementing equality accessing in the packet network are provided. The scheme of the invention realizes that the network provides equality accessing for terminal users in the packet network. Users contract and use equality accessing to select a service operator independently. Thereby it has good succession to the basic service characters in the conventional telecommunication, and also the competition fairness is ensured.

Description

在分组网中实现平等接入的方法及系统 技术领域  Method and system for achieving equal access in packet network
本发明涉及分组网的接入技术， 尤其涉及在分组网中实现平等接入 的方法及系统。 发明背景  The present invention relates to access technologies for packet networks, and more particularly to methods and systems for achieving equal access in packet networks. Background of the invention
平等接入是在多运营者的环境下提出的概念， 其实质是一个由用户 (或称为消费者）在知情的情况下能够按照自己的意愿， 选择不同运营 商来为其提供服务。 用户在知道需要连接的目的号码的情况下， 可以根 据目的号码、 通信质量要求、 通信时间、 价格等因素选择一个最佳接入 路由。  Equal access is a concept put forward in the environment of multiple operators. The essence of this is that a user (or a consumer) can, in an informed manner, be able to select different operators to serve them according to their own wishes. When the user knows the destination number to be connected, the user can select an optimal access route according to the destination number, communication quality requirement, communication time, price, and the like.
一种比较普遍的做法是在网絡中提供平等接入业务， 用户可以针对 不同业务签约不同的运营商， 由网络才艮据用户签约意愿完成运营商的选 择， 这种通过网络预置用户签约来选择运营商的方式一般称为预先选择 A more common practice is to provide equal access services in the network. Users can sign different operators for different services. The network can complete the operator's choice according to the user's contract signing intention. The method of selecting an operator is generally called pre-selection.
( Preselection ) 。 ( Preselection ).
在现有固定网络中， 平等接入是通过扩充用户属性来实现的。 为了 描述和记录用户在不同的业务下使用不同的网络 (或称之为运营商） , 增加一个 m*n的矩阵表， 其中， m表示网络的个数， n表示业务的个数。 最多向 n种业务提供网络的选择权，每一个业务提供了选择 m种网络的 可能性。 这样， 交换设备记录用户各种业务的签约运营商数据。 当用户 请求业务时， 交换设备分析业务属性， 根据业务属性， 在矩阵表中选择 对应的签约运营商， 并根据选择的签约运营商选择路由， 把业务请求发 送到选择运营商网络。  In existing fixed networks, equal access is achieved by augmenting user attributes. In order to describe and record that users use different networks (or operators) under different services, add a m*n matrix table, where m represents the number of networks and n represents the number of services. Provides network options for up to n types of services, each offering the possibility to select m networks. In this way, the switching device records the contracted carrier data of the user's various services. When the user requests the service, the switching device analyzes the service attribute, selects the corresponding contracting operator in the matrix table according to the service attribute, and selects the route according to the selected contracting operator, and sends the service request to the selected carrier network.
现有的在移动网络中实现平等接入的方法与在固定网络中实现平 等接入的方法的区别仅仅在于， 移动网络中实现平等接入需要 MAP支 持业务签约运营商数据的传送， 并需要 MSC (归属域和拜访域）能够根 据业务签约运营商选择路由。 The existing method of achieving equal access in a mobile network differs from the method of achieving equal access in a fixed network only in that MAP support is required for equal access in a mobile network. The service contract data is transmitted by the service contractor, and the MSC (home domain and visited domain) is required to select a route according to the service contracting carrier.
目前， 随着分组技术的不断成熟， 基于电路交换的传统电信网络正 在向着基于分组交换的宽带电信网发展， 其中， 使用会话初始化协议 ( SIP , Session Initiation Protocol )作为分组电信核心网的呼叫控制信令 是当前的技术发展趋势之一。 如何在分组网络中支持平等接入， 使用户 可以自由选择业务运营商， 保证竟争的公平性， 是当前分组网络中一个 急需解决的问题。 发明内容  At present, with the continuous maturity of packet technology, traditional telecommunication networks based on circuit switching are developing towards packet-switched broadband telecommunication networks, in which Session Initiation Protocol (SIP) is used as the call control signal of the packet telecommunication core network. Order is one of the current technological trends. How to support equal access in the packet network, so that users can freely choose the service operator and ensure the fairness of the competition is an urgent problem to be solved in the current packet network. Summary of the invention
本发明实施例提供了在分组网中实现平等接入的方法及系统， 在以 SIP作为核心网的呼叫控制信令的分组电信网中， 实现网络的平等接入。  Embodiments of the present invention provide a method and system for implementing equal access in a packet network, and achieve equal access of the network in a packet telecommunication network using SIP as a call control signaling of a core network.
在本发明一实施例中， 提供了一种在分组网中实现平等接入的方 法， 包括：  In an embodiment of the invention, a method for achieving equal access in a packet network is provided, including:
根据预先存储的平等接入签约数据得到用户的路由策略；  Obtaining a routing policy of the user according to the pre-stored equal access subscription data;
根据所述路由策略选择用户签约运营商的路由。  Selecting a route of the subscriber contracting carrier according to the routing policy.
根据本发明另一实施例， 提供了另一种在分组网中实现平等接入的 方法， 包括：  According to another embodiment of the present invention, another method for achieving equal access in a packet network is provided, including:
根据预先存储的用户的平等接入签约数据得到用户的路由策略； 设置包括所述的用户平等接入签约数据和对应的路由策略的初始 路由规则；  Obtaining a routing policy of the user according to the pre-stored equal access subscription data; setting an initial routing rule including the user equal access subscription data and a corresponding routing policy;
在收到用户呼叫请求消息时， 执行所述初始路由规则。  The initial routing rule is executed upon receipt of the user call request message.
才艮据本发明又一实施例， 一种在分组网中实现平等接入的系统 , 包 括：  According to still another embodiment of the present invention, a system for achieving equal access in a packet network includes:
第一逻辑网元， 存储用户的平等接入签约数据， 根据用户的平等接 入签约数据得到用户的路由策略， 并将所述路由策略携带在呼叫请求消 息中； 和 The first logical network element stores the equal access subscription data of the user, according to the equal access of the user Entering the subscription data to obtain the routing policy of the user, and carrying the routing policy in the call request message; and
第二逻辑网元， 接收携带所述路由策略的呼叫请求消息， 根据所述 路由策略选择用户签约运营商的路由。  The second logical network element receives the call request message carrying the routing policy, and selects a route of the user subscription carrier according to the routing policy.
根据本发明再一实施例， 一种在分组网中实现平等接入的系统， 包 括服务呼叫会话控制功能单元， 用于根据预先存储的用户的平等接入签 约数据得到用户的路由策略； 设置包括所述的用户平等接入签约数据和 对应的路由策略的初始路由规则； 在收到用户呼叫请求消息时， 执行所 述初始路由规则。  According to still another embodiment of the present invention, a system for achieving equal access in a packet network includes a service call session control function unit, configured to obtain a routing policy of a user according to the pre-stored equal access subscription data of the user; The user equally accesses the subscription data and the initial routing rule of the corresponding routing policy; and when the user call request message is received, the initial routing rule is executed.
根据本发明又一实施例， 一种在分组网中实现平等接入的服务呼叫 会话控制功能单元， 包括： 设置单元， 用于根据预先存储的用户的平等 接入签约数据得到用户的路由策略， 并设置包括所述的用户平等接入签 约数据和对应的路由策略的初始路由规则； 和执行单元， 在收到用户呼 叫请求消息时， 执行所述初始路由规则。  According to still another embodiment of the present invention, a service call session control function unit for implementing equal access in a packet network includes: a setting unit, configured to obtain a routing policy of the user according to the pre-stored equal access subscription data of the user, And setting an initial routing rule including the user equal access subscription data and a corresponding routing policy; and an execution unit, when the user call request message is received, executing the initial routing rule.
本发明实施例所提供的在分组网中平等接入的方法及系统, 在分组 网络中实现了终端用户选择平等接入， 可自主选择业务运营商， 对传统 电信网中的基本业务特征的有着良好的继承性， 同时保证了竟争的公平 性。 附图简要说明  The method and system for equal access in a packet network provided by the embodiments of the present invention enable an end user to select equal access in a packet network, and can independently select a service operator, and have basic service features in a traditional telecommunication network. Good inheritance, while ensuring the fairness of competition. BRIEF DESCRIPTION OF THE DRAWINGS
下面将通过参照附图详细描述本发明的示例性实施例， 使本领域的 普通技术人员更清楚本发明的上述及其它特征和优点， 附图中：  The above and other features and advantages of the present invention will become more apparent to those skilled in the <
图 1为本发明的分组核心网的网络逻辑结构示意图；  1 is a schematic diagram of a network logical structure of a packet core network according to the present invention;
图 2为本发明实施例二的信令路由路径示意图；  2 is a schematic diagram of a signaling routing path according to Embodiment 2 of the present invention;
图 3为本发明实施例五的信令路由路径示意图； 图 4为本发明实施例六的信令路由路径示意图； 3 is a schematic diagram of a signaling routing path according to Embodiment 5 of the present invention; 4 is a schematic diagram of a signaling routing path according to Embodiment 6 of the present invention;
图 5为根据本发明实施例七，第一逻辑网元 A和第二逻辑网元 B是 同一个 BGCF时信令路由路径示意图； 和  5 is a schematic diagram of a signaling routing path when the first logical network element A and the second logical network element B are the same BGCF according to Embodiment 7 of the present invention; and
图 6为根据本发明实施例七，第一逻辑网元 A和第二逻辑网元 B是 同一个 BGCF时方法的信令路由路径示意图之五。 实施本发明的方式  FIG. 6 is a fifth schematic diagram of a signaling routing path of a method when a first logical network element A and a second logical network element B are the same BGCF according to Embodiment 7 of the present invention. Mode for carrying out the invention
以下结合附图， 将对本发明的各较佳实施例进行更为详细的说明。 本发明实施例提供的在分组网中平等接入的方法， 以 SIP作为呼叫 控制信令， 其分组核心网的网络逻辑结构如图 1所示， 该图以欧洲电信 标准协会 (ETSI， European Telecommunications Standards Institute)下属的 电信和互联网融合业务及高级网络协议（ TISPAN, Telecommunications and Internet Converged Services and Protocols for Advanced Networking ) 定义的下一代网络 ( NGN, Next Generation Network ) 架构图为基础。  The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. The method for equal access in a packet network provided by the embodiment of the present invention uses SIP as the call control signaling, and the network logical structure of the packet core network is shown in FIG. 1 , which is based on the European Telecommunications Standards Institute (ETSI, European Telecommunications). The Standards Institute's Telecommunications and Internet Converged Services and Protocols for Advanced Networking (TISPAN) is based on the Next Generation Network (NGN) architecture diagram.
终端通过网络接入单元接入分组核心网， 网络接入单元向其提供注 册认证鉴权等功能， 网络接入单元和服务呼叫会话控制功能 ( Serving-CSCF , Serving Call Session Control Function ) (月艮务 CSCF ) 之间的 El接口为 SIP接口。 在 TISPAN定义的 NGN架构中， 网络接入 单元可以是代理呼叫会话控制功能（ P-CSCF, Proxy-Call Session Control Function ), 接入 SIP终端， 也可以是接入网关控制功能（ AGCF, Access Gateway Control Function ), 接入传统的普通电话业务（POTS )终端和 ISDN终端。  The terminal accesses the packet core network through the network access unit, and the network access unit provides functions such as registration authentication and authentication, and the network access unit and the service call session control function (Serving-CSCF, Serving Call Session Control Function) The El interface between the CSCFs is a SIP interface. In the NGN architecture defined by TISPAN, the network access unit may be a proxy call session control function (P-CSCF, Proxy-Call Session Control Function), access to a SIP terminal, or an access gateway control function (AGCF, Access Gateway). Control Function), access to traditional ordinary telephone service (POTS) terminals and ISDN terminals.
实现平等接入的应用服务器（AS, Application Server )提供用户平 等接入签约数据， 以此提供用户选择运营商的路由策略数据； 并且 S-CSCF实际处理网络会话状态。 出口网关控制功能 （BGCF, Breakout Gateway Control Function )选择 MGCF进入 PSTN的网络。 媒体网关控 制功能（ MGCF , Media Gateway Control Function )通过 BGCF与 CSCF 通信， 依据来自传统网络的入局呼叫的选路号码选择 CSCF。 互通边界 控制功能（IBCF, Interconnection Border Control Function )是两个运营 网络之间控制平面的互通边界功能实体。 An application server (AS, Application Server) that implements equal access provides users with equal access subscription data, thereby providing routing policy data for the user to select the operator; and the S-CSCF actually processes the network session state. Egress gateway control function (BGCF, Breakout Gateway Control Function) Select the network where the MGCF enters the PSTN. The Media Gateway Control Function (MGCF, Media Gateway Control Function) communicates with the CSCF through the BGCF, and selects the CSCF based on the routing number of the incoming call from the legacy network. The Interconnection Border Control Function (IBCF) is an interworking boundary function entity of the control plane between two operating networks.
本发明第一实施例将基于上述 NGN系统， 详细描述在以 SIP作为 核心网的呼叫控制信令的分组电信网中， 终端用户将如何签约业务运营 商， 而分组网络在终端用户使用对应业务时， 应将业务请求发送到对应 运营商网络。 具体来说， 网络中第一逻辑网元 A存储用户的平等接入签 约数据， 该网元 A根据用户的平等接入签约数据得到用户的路由策略， 而第二逻辑网元 B则根据得到的用户的路由策略来完成对用户签约运营 商的路由选择功能。 平等接入签约数据就是签约平等接入业务的业务逻 辑数据， 可以包括用户对不同业务和 /或应用的具体网络（或运营商） 的选择，该选择给出了对应的具体业务,用户所选择的具体运营商信息 , 根据该信息就能路由到所述运营商网絡。  The first embodiment of the present invention will be described in detail based on the above-mentioned NGN system, in a packet telecommunication network using SIP as the core network call control signaling, how the terminal user will sign the service operator, and the packet network uses the corresponding service when the terminal user uses the corresponding service. , the service request should be sent to the corresponding carrier network. Specifically, the first logical network element A in the network stores the equal access subscription data of the user, and the network element A obtains the routing policy of the user according to the equal access subscription data of the user, and the second logical network element B is obtained according to the obtained The routing policy of the user completes the routing function for the subscriber contracted carrier. The equal access subscription data is the business logic data of the contracted equal access service, and may include the user's selection of a specific network (or operator) for different services and/or applications, and the selection gives the corresponding specific service, and the user selects The specific carrier information can be routed to the carrier network based on the information.
本实施例中， 网元 A 可以是接入网关控制功能 ( AGCF, Access Gateway Control Function ) 、 或 S-CSCF、 或平等接入 AS、 或 BGCF、 或 IBCF;网元 B可以是 S-CSCF、或 BGCF、或 IBCF。但网元 A是 BGCF 或 IBCF时， 网元 A和网元 B可以不是同一个 BGCF或 IBCF, 而是互 通的 BGCF或 IBCF。 而当网元 A是 S-CSCF时， 网） L A和网元 B应该 是同一个 S-CSCF。  In this embodiment, the network element A may be an access gateway control function (AGCF, Access Gateway Control Function), or an S-CSCF, or an equal access AS, or a BGCF, or an IBCF; the network element B may be an S-CSCF, Or BGCF, or IBCF. However, when the network element A is a BGCF or an IBCF, the network element A and the network element B may not be the same BGCF or IBCF, but an interoperable BGCF or IBCF. When the network element A is the S-CSCF, the network L A and the network element B should be the same S-CSCF.
当网元 A是 AGCF或平等接入 AS时， AGCF或平等接入 AS根据 用户的平等接入签约数据得到用户的路由策略后， 将路由策略携带在呼 叫信令如 SIP INVITE消息中， 后向的网元 B根据该路由策略进行路由 选择。 呼叫信令中可以携带指示签约运营商的新的目的地址， 或者直接 携带到达签约运营商所经过的网元地址， 使呼叫按指定的路由路径到达 签约运营商。 When the network element A is the AGCF or the equal access AS, the AGCF or the equal access AS obtains the routing policy of the user according to the equal access subscription data of the user, and then carries the routing policy in the call signaling, such as the SIP INVITE message, and then The network element B performs routing according to the routing policy. The call signaling may carry a new destination address indicating the contracting operator, or directly Carry the address of the network element that has arrived at the contracting carrier, so that the call arrives at the contracting carrier according to the specified routing path.
例如，用户拨叫的目的地址为 0-755-6540808，用户选择为其提供长 途业务的运营商为中国联通， 则呼叫经过 AGCF或平等接入 AS后， 发 出的呼叫信令中携带的新的目的地址变为 193-755-6540808。  For example, if the destination address dialed by the user is 0-755-6540808, the operator that the user chooses to provide long-distance service is China Unicom, and the call is carried in the call signaling after the AGCF or the equal access to the AS. The destination address becomes 193-755-6540808.
而在呼叫信令中直接携带到达签约运营商所经过的网元地址， 使呼 叫按指定的路由路径到达签约运营商的情况下， 如呼叫经过平等接入 AS后， 发出的呼叫信令如 SIP INVITE消息中可在 Route头域中直接携 带签约运营商入口网元 IBCF的地址。  In the case that the call signaling directly carries the network element address that arrives at the contracting carrier, so that the call arrives at the designated carrier according to the specified routing path, if the call passes the equal access to the AS, the call signaling, such as SIP, is sent. The INVITE message can directly carry the address of the contract carrier's ingress network element IBCF in the Route header field.
当第一网元 A为 AGCF、 或平等接入 AS、 或 BGCF、 或 IBCF时， 即当用户的平等接入签约数据在 AGCF、 或平等接入 AS、 或 BGCF、 或 IBCF 上时， 该签约数据可以作为一种业务应用数据来存储和管理； 而 当第一网元 A为 S-CSCF时, 即当该签约数据在 S-CSCF上时， S-CSCF 在标准定义中和业务应用无关, 不能作为一种业务应用数据来存储和管 理， 此时 S-CSCF 上可以采用一种类似当前标准定义的初始过滤规则 ( iFC, Initial Filter Criteria )的签约机制， 将平等接入签约数据作为一 种扩展的用户路由签约数据存储和管理在归属用户服务器（HSS, Home Subscriber Server ) 中。  When the first network element A is an AGCF, or an equal access AS, or a BGCF, or an IBCF, that is, when the user's equal access subscription data is on the AGCF, or an equal access AS, or BGCF, or IBCF, the signing The data can be stored and managed as a service application data; when the first network element A is an S-CSCF, that is, when the subscription data is on the S-CSCF, the S-CSCF is independent of the service application in the standard definition. It cannot be stored and managed as a kind of business application data. At this time, the S-CSCF can adopt a signing mechanism similar to the initial filtering rule (iFC, Initial Filter Criteria) defined by the current standard, and the equal access subscription data is used as a kind. Extended user routing subscription data is stored and managed in the Home Subscriber Server (HSS).
第二实施例， 当第一网元 A 为 S-CSCF 时， 即当该签约数据在 S-CSCF上时，可以扩展一种初始路由规则（ iRC, Initial Route Criteria )。 信令路径如图 2所示， 其中， 通过网络规划或者配置手段使所有出本域 的消息经过本域的 IBCF。  In the second embodiment, when the first network element A is an S-CSCF, that is, when the subscription data is on the S-CSCF, an initial route rule (iRC, Initial Route Criteria) may be extended. The signaling path is as shown in Figure 2. The network planning or configuration means allows all outgoing messages to pass through the IBCF of the local domain.
当前标准定义的 iFC签约数据表明的是用户的业务触发的初始过滤 规则。 iFC签约数据中设定一系列的过滤规则和与各过滤规则对应的 AS 地址， 该过滤规则^ ^载在 SIP消息中。 S-CSCF通过对该过滤规则的匹 配， 得到提供业务的 AS的地址。 类似的， 本实施例扩展了一种初始路 由规则 （iRC， Initial Route Criteria )。 在 iRC签约数据中设定一系列的 过滤规则和与各过滤规则对应的路由地址， 该过滤规则的表达形式可以 同 iFC完全一致， 并且可承载在 SIP消息中。 S-CSCF通过对该过滤规 则的匹配， 得到下一个或若干个后向的网元地址。 The iFC subscription data defined by the current standard indicates the initial filtering rule triggered by the user's service. The iFC subscription data sets a series of filtering rules and an AS address corresponding to each filtering rule, and the filtering rule is carried in the SIP message. S-CSCF passes the filter rule Match, get the address of the AS providing the service. Similarly, this embodiment extends an initial routing rule (iRC, Initial Route Criteria). A set of filtering rules and a routing address corresponding to each filtering rule are set in the iRC subscription data, and the expression of the filtering rule may be identical to the iFC and may be carried in the SIP message. The S-CSCF obtains the next or several backward network element addresses by matching the filtering rules.
iRC存储和管理在 HSS中，用户在注册时， S-CSCF从 HSS下载 iRC， 当 HSS上的 iRC数据更新时， HSS主动向 S-CSCF更新。  iRC storage and management In the HSS, when the user registers, the S-CSCF downloads the iRC from the HSS. When the iRC data on the HSS is updated, the HSS actively updates to the S-CSCF.
iRC使用可扩展标记语言 （XML )编码， 包括：  iRC uses Extensible Markup Language (XML) encoding, including:
在根元素中， 包含私有标识标签和路由配置标签； 在私有标识标签 中， 给出用户私有身份标识； 在路由配置标签中， 包含用户公用身份标 识标签和路由过滤规则标签； 在用户公用身份标识标签中， 给出用户会 话初始化协议的统一资源标识和 /或电话统一资源定位符；在路由过滤规 则标签中， 包含触发点标签和路由策略信息标签； 在触发点标签中， 给 出服务点触发器关系及服务点触发器描述； 在路由策略信息标签中， 给 出匹配服务点触发器描述条件的路由策略； 在服务点触发器标签中， 包 含环境描述标签、 服务点触发器组标签以及服务点触发器匹配条件。  In the root element, the private identification label and the routing configuration label are included; in the private identification label, the user private identity is given; in the routing configuration label, the user public identity label and the route filtering rule label are included; In the label, the uniform resource identifier and/or the telephone uniform resource locator of the user session initialization protocol are given; in the route filtering rule label, the trigger point label and the routing policy information label are included; in the trigger point label, the service point trigger is given The relationship between the device relationship and the service point trigger; in the routing policy information tag, the routing policy that matches the description of the service point trigger is given; in the service point trigger tag, the environment description tag, the service point trigger group tag, and the service are included. The point trigger matches the condition.
其中， 在触发点标签中， 服务点触发器匹配条件包含：  Wherein, in the trigger point label, the service point trigger matching condition includes:
请求统一资源标识标签， 用于标识该请求所指向的资源；  Requesting a uniform resource identification tag, which is used to identify the resource pointed to by the request;
会话初始化协议方法标签， 用于表示该请求的类型;  Session initialization protocol method tag, used to indicate the type of the request;
会话初始化协议消息头， 用于包含与该请求相关的信息；  a session initiation protocol message header for containing information related to the request;
会话情形标签， 用于给出会话的三个可能值， 包括会话起始、 会话 终止、 会话终止未注册；  Session condition tag, used to give three possible values of the session, including session start, session termination, and session termination are not registered;
会话描述标签， 用于定义针对会话初始化协议方法体内的任何会话 描述协议字段内容的服务点触发器。  A session description tag that defines a service point trigger that describes the contents of the protocol field for any session within the session initialization protocol method body.
当没有给出触发点时， 表示初始路由规则希望无条件路由到指定地 址。 When no trigger point is given, it indicates that the initial routing rule wants to be unconditionally routed to the specified place. Address.
在触发点标签中， 采用正态表达式描述各个服务点触发器。 可以采 用连接正态表达式 （Conjunctive Normal Form ) 和分离正态表达式 ( Disjunctive Normal Form )关联服务点触发器。 当采用连接正态表达式 关联服务点触发器时， 先使用或 （Or )运算连接同组内不同匹配条件， 后使用与 （And )运算连接不同組的匹配条件。 当采用分离正态表达式 关联服务点触发器时， 先使用与（And )运算连接同组内不同匹配条件， 后使用或 （Or )运算连接不同组的匹配条件。  In the trigger point label, a normal expression is used to describe each service point trigger. Service point triggers can be associated with a Conjunctive Normal Form and a Disjunctive Normal Form. When using a normal expression to associate a service point trigger, use the or (Or ) operation to connect different matching conditions in the same group, and then use the (And ) operation to connect the matching conditions of different groups. When using a separate normal expression to associate a service point trigger, first use the (And ) operation to connect different matching conditions in the same group, and then use the or (Or ) operation to connect the matching conditions of different groups.
在路由策略信息标签中， 给出匹配服务点触发器描述条件的路由策 略信息， 所述路由策略信息包含策略路由需要经过的一跳或者多跳。  In the routing policy information label, routing policy information matching the description of the service point trigger is given, where the routing policy information includes one or more hops that the policy routing needs to pass.
第三实施例， 假设用户 （ SIP Uniform Resource Identifier (SIP URI): abcd@example.com, tel URL: +861066668888 )签约平等接入， 当呼叫 域名为 domain.com的用户， 或当呼叫 0755*的用户时， 该签约平等接入 的用户使用域名为 long.com运营商提供的长途服务。  In the third embodiment, it is assumed that the user (SIP Uniform Resource Identifier (SIP URI): abcd@example.com, tel URL: +861066668888) signs equal access, when calling the domain name domain.com user, or when calling 0755* When the user is online, the user who subscribes to the equal access uses the long-distance service provided by the long.com operator.
使用布尔表达式可表示为:  Use a Boolean expression to represent:
签约平等接入， 当呼叫域名为 domain.com 的用户 时， Method="INVITE" AND (Request-URI =".*@domain.com.*"); 或当呼叫 0755*的用户时， Method="INVITE，， AND (Request-URI =，，Λ(0755).*，，")。 Signing equal access, when calling a user whose domain name is domain.com, Method="INVITE" AND (Request-URI =".*@domain.com.*"); or when calling 0755* users, Method= "INVITE,, AND (Request-URI =,, Λ (0755).*,,").
使用 XML描述 iRC, 如下：  Use XML to describe iRC as follows:
. <!一使用连接正态表达式 CNP描述 - >  <! One use connection normal expression CNP description ->
<?xml version-" 1.0" encoding="UTF-8"?>  <?xml version-" 1.0" encoding="UTF-8"?>
<testDatatype  <testDatatype
xmlns:xsi- 'http://www.w3.org/200 l/XMLSchema-instance" Xmlns:xsi- 'http://www.w3.org/200 l/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="D:\CxDataType.xsd"> Xsi:noNamespaceSchemaLocation="D:\CxDataType.xsd">
<IMS Subscription> Il/ioisu/DId 9ε8ϋ βί qpnI≤ <l>xo*<IMS Subscription> Il/ioisu/DId 9ε8ϋ βί qpnI≤ <l>xo*
pI Λ ls。 pI Λ ls.
μρ一 3dΙ Λ>Ιδn。 Ρρ - 3dΙ Λ>Ιδn.
μρι/999¾ι∞∞∞∞998μ0 ΐΙ+1 <ν<νι9δ:δ  Μρι/9993⁄4ι∞∞∞∞998μ0 ΐΙ+1 <ν<νι9δ:δ
Figure imgf000011_0001
Figure imgf000011_0001
o o
<HopName>sip:IBCF@long.com</HopName> <HopName>sip:IBCF@long.com</HopName>
<DefaultHandling> 1 </DefaultHandling> </NextHops>  <DefaultHandling> 1 </DefaultHandling> </NextHops>
</InitialRouteCriteria>  </InitialRouteCriteria>
</RouteProfile>  </RouteProfile>
</IMSSubscription>  </IMSSubscription>
</testDatatype>  </testDatatype>
其中， 标签 <PrivateID>给出用户私有 ID， 标签 <RouteProfile>中可 以描述用 户公用 身份标识 <PublicIdentity>和路由过滤规则 <InitialRouteCriteria> ,在标签 <PublicIdentity>中，可以给出用户 SIP URI 和 tel URL。 在标签 <InitialRouteCriteria>中， 给出当前路由过滤规则触 发点 1¾§§6 0^>和匹配后需要经过的路由 <NextHops>,触发后需要经 过的该路由的， 可以是一个实体， 也可以是多个实体， 使用标签 <HopName>给出实体的地址。 而触发点中， 可以采用正态表达式描述各 个服务点触发器（ SPT )。上例是采用连接正态表达式（ Conjunctive Normal Form, CNF ), 使用 and连接各个<01"0叩>, 各个 <Group> SPT之间采 用 or连接。 当<0)1^1 01^6§&16(1>为 1时， 表示当前 SPT取，， NOT，，。 在 <SPT>中， 可以匹配的包含：  The tag <PrivateID> gives the user private ID, the tag <RouteProfile> can describe the user public identity <PublicIdentity> and the route filtering rule <InitialRouteCriteria>. In the tag <PublicIdentity>, the user SIP URI and tel URL can be given. . In the label <InitialRouteCriteria>, the current route filtering rule trigger point is given. The route <NextHops> that needs to pass after the matching is triggered. The route that needs to pass after the triggering may be an entity, or Multiple entities, using the tag <HopName> gives the address of the entity. In the trigger point, a normal expression can be used to describe each service point trigger (SPT). In the above example, a Conjunctive Normal Form (CNF) is used, and each <01"0叩> is connected with and, and an OR connection is used between each <Group> SPT. When <0)1^1 01^6§ &16 (1> is 1, indicating the current SPT, , NOT,,. In <SPT>, the matching can include:
请求 U I (标签 <RequestU I> ) , 标识该请求所指向的资源； Request U I (label <RequestU I> ) to identify the resource pointed to by the request;
SIP方法 （标签 <Method> ) , 表示该请求的类型； SIP method (label <Method> ) indicating the type of the request;
SIP消息头（标签 <SIPHeader> ) , 包含与该请求相关的信息。 其中， 可以使用标签 <Header>描述消息头， 使用 <Content>描述消息头内容。 <Content>描述语法和 iFC类似， 例如， "Joe": 表示给出的消息头严格 匹配字符串 "J0e，，， " (Jo).*":表示给出的消息头使用字符串" Jo"开头， 而 ".*Jo.*，，： 表示给出的消息头中在任意位置包含子字符串" Jo". The SIP message header (label <SIPHeader>) contains information related to the request. Among them, you can use the tag <Header> to describe the message header and <Content> to describe the message header content. The <Content> description syntax is similar to iFC, for example, "Joe": indicates that the given message header strictly matches the string "J 0e ,,, "(Jo).*": indicates that the given message header uses the string " Jo "Beginning, and ".*Jo.*,,: indicates that the given message header contains the substring "Jo" anywhere.
会话情形 （标签 <SessionCase> ) , 给出会话的三个可能值， 枚举如 下： Session case (label <SessionCase> ), giving three possible values for the session, enumeration Next:
Originating = 0,表示会话起始  Originating = 0, indicating the start of the session
Terminating = 1，表示会话终止  Terminating = 1, indicating session termination
Terminating— Unregistered = 2，表示会话终止未注册  Terminating— Unregistered = 2, indicating that the session was terminated
会话描述（标签 <SessionDescription> ) , 定义针对 SIP方法体内的 任何 SDP字段内容的服务点触发器。 语法和上述 <Content ^法一致。  The session description (label <SessionDescription> ) defines a service point trigger for the contents of any SDP field within the SIP method body. The syntax is consistent with the above <Content ^ method.
当没有给出触发点时， 表示 iRC希望无条件路由到指定地址。 第四实施例， 针对实施例三的方法， 采用分离正态表达式 ( Disjunctive Normal Form, D F )表达。  When no trigger point is given, it indicates that the iRC wants to route unconditionally to the specified address. In the fourth embodiment, for the method of the third embodiment, a Disjunctive Normal Form (DFF) expression is used.
<！一使用分离正态表达式 DNF描述 >  <! A separate normal expression DNF description >
<?xml version-" 1.0" encoding="UTF-8"?>  <?xml version-" 1.0" encoding="UTF-8"?>
<testDatatype  <testDatatype
xmlns:xsi- 'http://www.w3.org/2001/XMLSchema- instance" Xmlns:xsi- 'http://www.w3.org/2001/XMLSchema- instance"
xsi:noNamespaceSchemaLocation="D:\CxDataType.xsd"> Xsi:noNamespaceSchemaLocation="D:\CxDataType.xsd">
<IMS Subscription  <IMS Subscription
<PrivateID>IMPI 1 @homedomain. com</PrivateID>  <PrivateID>IMPI 1 @homedomain. com</PrivateID>
<RouteProfile>  <RouteProfile>
<PublicIdentity>  <PublicIdentity>
<Identity>sip:abcd@example.com</Identit > </PublicIdentity>  <Identity>sip:abcd@example.com</Identit > </PublicIdentity>
<PublicIdentity>  <PublicIdentity>
<Identity>tel:+861066668888</Identity>  <Identity>tel:+861066668888</Identity>
</PublicIdentity>  </PublicIdentity>
<InitialRouteCriteria>  <InitialRouteCriteria>
<TriggerPoint>  <TriggerPoint>
<ConditionTypeCNF>0</ConditionTypeCNF>  <ConditionTypeCNF>0</ConditionTypeCNF>
<SPT> yp/testDateat> <<SPT> Yp/testDateat><
p/MUti。ISSbscrin <> p/MUti. ISSbscrin <>
/Rfleouteprol <> /Rfleouteprol <>
c/InitialRouteriateri <v c/InitialRouteriateri <v
p/NextHos> < p/NextHos> <
ggandltHinDefaultHn/Defulandliav <v A ggandltHinDefaultHn/Defulandliav <v A
@PppTO/mHcoCOOS_amEfoNamsi:IeFln.Ie.rt<vv <.. @PppTO/mHcoCOOS_amEfoNamsi: IeFln.Ie.rt<vv <..
PSNextHOV A PSNextHOV A
ggoin/Trierptv <  Ggoin/Trierptv <
Figure imgf000014_0001
Figure imgf000014_0001
MetNVdhodIITEZMetho AvvAMetNVdhodIITEZMetho AvvA
ppGro/Guorou < V< V ggNeconNaed/nditionadditionetocote AvvA 在第四实施例中， 标签 <HopName>sip:IBCF@long.com</HopName> 给出了匹配初始路由规则后， 请求需要到达的下一跳为域名为 long.com 网络的 IBCF, 同样， 如果希望经过多跳（多个实体） ， 可以多次使用 标签 <HopName>, 按顺序给出希望到达的各跳地址。 当然， 上述地址中 给出的实体可以是宽松路由， 也可以是严格路由， 即根据选择路由的宽 松与严格条件不同。 ppGro/Guorou <V< V ggNeconNaed/nditionadditionetocote AvvA In the fourth embodiment, the label <HopName>sip:IBCF@long.com</HopName> gives the next hop that the request needs to reach after matching the initial routing rule, and the IBCF whose domain name is the long.com network. Similarly, If you want to go through multiple hops (multiple entities), you can use the tag <HopName> multiple times, giving the hop addresses you want to arrive in order. Of course, the entity given in the above address may be a loose route or a strict route, that is, according to the looseness and strict conditions of the selected route.
iRC可由 HSS经过 Cx参考点 ( 3GPP定义 HSS和 S-CSCF接口为 Cx ) , 在 收到 S-CSCF 的 服 务 器 分 配 请 求 （ SAR , Server-Assignment-Request ) 命令后， 使用服务器分配应答 ( SAA , Server- Assig瞧 ent-Answer )命令将 iRC发送到 S-CSCF。  The iRC may use the CX reference point (the 3GPP defines the HSS and the S-CSCF interface to be Cx), and after receiving the S-CSCF server allocation request (SAR, Server-Assignment-Request) command, use the server to assign a response (SAA, Server). - Assig瞧ent-Answer ) command sends the iRC to the S-CSCF.
HSS也可以发送推送配置请求（PPR， Push-Profile-Request )命令给 S-CSCF, 请求更新 S-CSCF中的 iRC。 通常， S-CSCF—旦接收到 PPR 命令， 将立即更新 iRC数据。 但是， 当 S-CSCF正在为一个未注册用户 服务，或者 S-CSCF被保留给一个未注册用户时， S-CSCF将发送推送配 置应答（PPA, Push-Profile-Answer )命令， 简单指出 S-CSCF更新 iRC 的结果， 例如成功或者失败。  The HSS may also send a Push-Profile-Request (PPR, Push-Profile-Request) command to the S-CSCF to request to update the iRC in the S-CSCF. Normally, the S-CSCF will update the iRC data as soon as it receives the PPR command. However, when the S-CSCF is serving an unregistered user, or the S-CSCF is reserved for an unregistered user, the S-CSCF will send a push configuration response (PPA, Push-Profile-Answer) command, simply indicating S- The CSCF updates the results of the iRC, such as success or failure.
值得注意的是， 当 S-CSCF收到用户的呼叫请求， 在执行 iRC时， 如果同时触发 iFC, S-CSCF应优先执行 iFC,执行完 iFC之后再执行 iRC。 如果执行 iRC时，在呼叫请求消息中已经存在 Route头域，这时 S-CSCF 执行触发 iRC, 如果 iRC匹配， 可以把 iRC中给出的下一跳（或多跳） 加入已有 Route头域， 可以增加到 Route头域地址列表顶， 也可以增加 到列表底， S-CSCF根据 Route头域中的路由将呼叫请求消息发送给下 一跳。 如果执行 iRC时， 在请求消息中不存在 Route头域， 如果 iRC匹 配， S-CSCF在呼叫请求消息中增加 Route头域， 把 iRC中给出的下一 跳（或多跳）携带到呼叫请求消息的 Route头域中， 并解析 Route头域 地址列表顶端地址， 作为发送呼叫请求消息的下一跳。 S-CSCF也可以 直接 4巴呼叫请求消息发送下一跳的地址， 而不用在呼叫请求消息中增加 Route头域。 It is worth noting that when the S-CSCF receives the call request from the user, when the iRC is executed, if the iFC is triggered at the same time, the S-CSCF shall execute the iFC first, and then execute the iRC after executing the iFC. If the Route header field already exists in the call request message when the iRC is executed, the S-CSCF performs the trigger iRC. If the iRC matches, the next hop (or multi-hop) given in the iRC can be added to the existing Route header field. , can be added to the top of the Route header address list, or can be added to the bottom of the list. The S-CSCF sends a call request message to the next hop according to the route in the Route header field. If the iRC is executed, the Route header field does not exist in the request message. If the iRC matches, the S-CSCF adds a Route header field to the call request message, and carries the next hop (or multi-hop) given in the iRC to the call request. The Route header field of the message, and parse the Route header field The top address of the address list, as the next hop to send a call request message. The S-CSCF can also send the address of the next hop directly to the 4 bar call request message without adding the Route header field to the call request message.
如前所述，本发明实施例中的第一逻辑网元 A存储用户的平等接入 签约数据， 并根据用户的平等接入签约数据得到用户的路由策略， 再由 第二逻辑网元 B 完成对用户签约运营商的路由选择功能。 iRC是实现 S-CSCF 实现路由策略的一种方法， 还可以使用其他的方法实现路由策 略。  As described above, the first logical network element A in the embodiment of the present invention stores the equal access subscription data of the user, and obtains the routing policy of the user according to the equal access subscription data of the user, and then is completed by the second logical network element B. The routing function for the subscriber's contracted carrier. iRC is a method to implement S-CSCF to implement routing policies. Other methods can also be used to implement routing policies.
第五实施例 ,当第一逻辑网元 A是 AGCF时（接入传统 PSTN/ISDN 用户）， 如用户拨叫的目的地址为 0-755-6540808， 用户要选择为其提供 长途业务的运营商为中国联通， 则呼叫经过 AGCF后， 发出的呼叫信令 中携带的新的目的地址变为 193-755-6540808。由 S-CSCF尝试将 tel UKL 193-755-6540808转换成 SIP URI,在转换失败后，将呼叫路由到 BGCF。  In the fifth embodiment, when the first logical network element A is an AGCF (accessing a traditional PSTN/ISDN user), if the destination address dialed by the user is 0-755-6540808, the user needs to select an operator for providing long-distance service. For China Unicom, after the call passes through the AGCF, the new destination address carried in the call signaling is changed to 193-755-6540808. The S-CSCF attempts to convert tel UKL 193-755-6540808 into a SIP URI, and after the conversion fails, routes the call to the BGCF.
BGCF做号码分析, 选择 MGCF入电路交换（CS, Circuit Switch )域, 在 CS域选择 193对应的中国联通网络作为长途业务提供商 , 其信令路 由路径（省略发生其他业务情况）如图 3所示。 The BGCF performs the number analysis, selects the MGCF into the circuit switched (CS, Circuit Switch) domain, and selects the China Unicom network corresponding to 193 in the CS domain as the long-distance service provider, and its signaling routing path (omitting other service situations) is as shown in FIG. Show.
第六实施例， 当第一逻辑网元 A是平等接入 AS时， S-CSCF首先 执行平等接入 iFC, 将呼叫路由到与该 iFC对应的平等接入 AS。 平等接 入 AS执行业务逻辑，在呼叫请求消息中增加 Route头域， Route头域中 给出用户签约业务运营商地址， 并将呼叫请求消息返回给 S-CSCF。  In the sixth embodiment, when the first logical network element A is equally connected to the AS, the S-CSCF first performs equal access to the iFC, and routes the call to the equal access AS corresponding to the iFC. Equally access the AS to execute the business logic, add the Route header field to the call request message, give the user subscription service carrier address in the Route header field, and return the call request message to the S-CSCF.
S-CSCF解析请求消息中 Route头域， 得到用户签约业务运营商地址， 完成路由选择。 其信令路径如图 4所示， 其中， 当被呼叫用户属于另一 个运营网络时， 通过网络规划或者配置手段使所有出本域的消息经过本 域的 IBCF; 当被呼叫用户属于 CS域用户时， AS进行号码变换， 插入 签约运营商标识； 当呼叫 IMS域用户时， AS可以在请求消息中 Route 头域中增加签约运营商网络 IBCF地址。 The S-CSCF parses the Route header field in the request message, obtains the address of the user subscription service carrier, and completes the routing. The signaling path is as shown in FIG. 4, wherein when the called user belongs to another operating network, all the outgoing messages are passed through the IBCF of the local domain through network planning or configuration means; when the called user belongs to the CS domain user The AS performs the number change and inserts the contracted carrier identifier. When calling the IMS domain user, the AS can use the Route message in the request message. Increase the subscription carrier network IBCF address in the header field.
第七实施例， 如图 5所示， 当第一逻辑网元 A是 BGCF1 (本域的 BGCF ) 时， 第二逻辑网元 B可以是同一个 BGCF1。 此时， BGCF1 中 保存用户签约数据， 并根据该用户签约数据得到签约用户路由策略， 然 后根据签约用户路由策略将呼叫请求消息发送给用户签约业务运营商 网络的 BGCF2。 本领域技术人员应该理解， 第一逻辑网元 A和第二逻 辑网元 B也可以是互通的 BGCF。 同样， 如图 6所示当第一逻辑网元 A 是 IBCF1 (本域的 IBCF ) 时， 第二逻辑网元 B可以是同一个 IBCF1。 此时， IBCF1中保存用户签约数据， 并根据该用户签约数据得到签约用 户路由策略， 然后根据签约用户路由策略将呼叫请求消息发送给用户签 约业务运营商网络的 IBCF2。 同样， 本领域技术人员应该理解， 第一逻 辑网元 A和第二逻辑网元 B也可以是互通的 IBCF。  In the seventh embodiment, as shown in FIG. 5, when the first logical network element A is BGCF1 (BGCF of the local domain), the second logical network element B may be the same BGCF1. At this time, the user subscription data is saved in the BGCF1, and the subscription user routing policy is obtained according to the user subscription data, and then the call request message is sent to the BGCF2 of the subscriber service provider network according to the subscription user routing policy. Those skilled in the art should understand that the first logical network element A and the second logical network element B may also be interworking BGCFs. Similarly, when the first logical network element A is IBCF1 (IBCF of the local domain) as shown in FIG. 6, the second logical network element B may be the same IBCF1. At this time, the user subscription data is saved in the IBCF1, and the subscription user routing policy is obtained according to the user subscription data, and then the call request message is sent to the IBCF2 of the user subscription service operator network according to the subscription user routing policy. Similarly, those skilled in the art should understand that the first logical network element A and the second logical network element B may also be interworking IBCFs.
本发明实施例还公开了一种在分组网中实现平等接入的系统， 包括 第一逻辑网元和第一逻辑网元。 其中在网络中的第一逻辑网元中存储用 户的平等接入签约数据， 该第一逻辑网元根据用户的平等接入签约数据 得到用户的路由策略；所述第一逻辑网元，在收到用户呼叫请求消息时， 应用用户的路由策略； 第二逻辑网元根据所述路由策略选择用户签约运 营商的路由。  The embodiment of the invention further discloses a system for implementing equal access in a packet network, comprising a first logical network element and a first logical network element. The first logical network element stores the user's equal access subscription data in the first logical network element in the network, and the first logical network element obtains the user's routing policy according to the user's equal access subscription data; the first logical network element is received. When the user calls the request message, the routing policy of the user is applied; the second logical network element selects the route of the user subscription carrier according to the routing policy.
参照图 1 , 所述第一逻辑网元可以为 AGCF, 或 S- CSCF、 或平等接 入 AS、 或 BGCF、 或 IBCF; 第二逻辑网元可以是 S-CSCF、 或 BGCF、 或 IBCF。但当第一逻辑网元是 BGCF或 IBCF时， 第一逻辑网元和第二 逻辑网元可以是同一个 BGCF或 IBCF, 也可以不是同一个 BGCF 或 IBCF, 而是互通的 BGCF或 IBCF。 而第一逻辑网元是 S-CSCF时， 网 元第一逻辑网元和第二逻辑网元应该是同一个 S-CSCF。  Referring to FIG. 1, the first logical network element may be an AGCF, or an S-CSCF, or an AS, or a BGCF, or an IBCF; the second logical network element may be an S-CSCF, or a BGCF, or an IBCF. However, when the first logical network element is a BGCF or an IBCF, the first logical network element and the second logical network element may be the same BGCF or IBCF, or may not be the same BGCF or IBCF, but an interworking BGCF or IBCF. When the first logical network element is the S-CSCF, the first logical network element and the second logical network element of the network element should be the same S-CSCF.
本发明实施例还公开了另一种在分组网中实现平等接入的系统， 仍 然参照图 1 , 包括第一 S-CSCF和第二 S-CSCF。 这里， 第一 S-CSCF和 第二 S-CSCF为同一个 S-CSCF。 其中， 第一 S-CSCF中存储用户的平等 接入签约数据， 该第一 S-CSCF根据用户的平等接入签约数据得到用户 的路由策略； 所述第一 S-CSCF, 在收到用户呼叫请求消息时， 执行一 初始路由规则； 第二 S-CSCF根据所述路由策略选择用户签约运营商的 路由。 这里， 所述的 S-CSCF可以包括一个设置单元和一个执行单元， 所述设置单元可以根据预先存储的用户的平等接入签约数据得到用户 的路由策略， 并设置包括所述的用户平等接入签约数据和对 的路由策 略的初始路由规则； 而所述执行单元可以在收到用户呼叫请求消息时， 从设置单元中获取设置的初始路由规则， 并执行所述初始路由规则。 所 述初始路由规则包括用户平等接入签约数据和与用户平等接入签约数 据对应的路由策略。 该初始路由规则具体描述与前述实施例相同。 Another embodiment of the present invention discloses a system for achieving equal access in a packet network. Referring to FIG. 1, a first S-CSCF and a second S-CSCF are included. Here, the first S-CSCF and the second S-CSCF are the same S-CSCF. The first S-CSCF stores the user's equal access subscription data, and the first S-CSCF obtains the user's routing policy according to the user's equal access subscription data; the first S-CSCF receives the user call When the message is requested, an initial routing rule is executed; the second S-CSCF selects a route of the subscriber contracting carrier according to the routing policy. Here, the S-CSCF may include a setting unit and an execution unit, and the setting unit may obtain a routing policy of the user according to the pre-stored equal access subscription data of the user, and set equal access including the user. The initial routing rule of the subscription data and the matching routing policy; and the executing unit may obtain the set initial routing rule from the setting unit when the user call request message is received, and execute the initial routing rule. The initial routing rule includes a user equal access subscription data and a routing policy corresponding to the user equal access subscription data. The initial routing rules are specifically described in the same manner as the foregoing embodiments.
根据本发明实施例， 在分组网络中, 终端用户使用平等接入, 可自 主选择业务运营商， 对传统电信网中的基本业务特征的有着良好的继承 性， 同时也保证了竟争的公平性。 本发明方法同时还给出了一种初始路 由规则， 通过使用该规则 , 可以使 S-CSCF根据用户签约数据完成路由 策略。  According to an embodiment of the present invention, in a packet network, an end user uses equal access, and can independently select a service operator, which has good inheritance to basic service features in a traditional telecommunication network, and also ensures fairness of competition. . The method of the present invention also provides an initial routing rule by which the S-CSCF can complete the routing policy based on the subscriber subscription data.
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的保护范围为准。  The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

权利要求书 Claim
1、 一种在分组网中实现平等接入的方法， 包括：  1. A method for achieving equal access in a packet network, comprising:
才艮据预先存储的平等接入签约数据得到用户的路由策略； 根据所述路由策略选择用户签约运营商的路由。  The routing policy of the user is obtained according to the pre-stored equal access subscription data; the route of the user subscription operator is selected according to the routing policy.
2、 根据权利要求 1 所述的方法， 其特征在于， 根据所述路由策略 选择用户签约运营商的路由之前， 进一步包括：  The method according to claim 1, wherein before the routing of the subscriber subscription operator is selected according to the routing policy, the method further includes:
将所述路由策略携带在呼叫请求消息中， 发送给第二逻辑网元； 则所述第二逻辑网元根据所述路由策略选择用户签约运营商的路 由。  The routing policy is carried in the call request message and sent to the second logical network element. The second logical network element selects a route of the user subscription operator according to the routing policy.
3、 根据权利要求 2所述的方法， 其特征在于， 所述第二逻辑网元 为服务呼叫会话控制功能单元， 所述根据预先存储的平等接入签约数据 得到用户的路由策略包括：  The method according to claim 2, wherein the second logical network element is a serving call session control function unit, and the obtaining a routing policy of the user according to the pre-stored equal access subscription data comprises:
根据用户平等接入签约数据和呼叫的被叫号码获得签约运营商标 识；  Obtaining the contracted operation trademark according to the user's equal access to the contract data and the called number of the call;
所述将路由策略携带在呼叫请求消息中， 发送给第二逻辑网元包 括：  The routing policy is carried in the call request message, and the sending to the second logical network element includes:
将运营商标识添加在被叫号码前形成新的被叫号码， 并将新的被叫 号码携带在呼叫请求消息中发送给服务呼叫会话控制功能单元。  The operator identifier is added before the called number to form a new called number, and the new called number is carried in the call request message and sent to the serving call session control function unit.
4、 据权利要求 2所述的方法， 其特征在于， 所述第二逻辑网元 为服务呼叫会话控制功能单元， 所述根据预先存储的平等接入签约数据 得到用户的路由策略包括：  The method according to claim 2, wherein the second logical network element is a serving call session control function unit, and the routing policy obtained by the user according to the pre-stored equal access subscription data comprises:
根据用户平等接入签约数据和呼叫的被叫方身份标识获得签约运 营商地址；  The contracted operator address is obtained according to the user's equal access to the subscription data and the called party identity of the call;
所述将路由策略携带在呼叫请求消息中， 发送给第二逻辑网元包 括 ·· Transmitting the routing policy in the call request message, and sending the routing policy to the second logical network element packet Include
在呼叫请求消息的 Route头域中增加签约运营商地址， 或者将运营 商标识作为呼叫的统一资源定位符的前缀， 并将该呼叫请求消息发送给 所述服务呼叫会话控制功能单元。  The contract operator address is added in the route header field of the call request message, or the carrier identifier is used as the prefix of the uniform resource locator of the call, and the call request message is sent to the service call session control function unit.
5、 根据权利要求 1 所述的方法， 其特征在于， 所述根据该平等接 入签约数据得到用户的路由策略包括：  The method according to claim 1, wherein the routing policy obtained by the user according to the equal access subscription data comprises:
根据用户平等接入签约数据和呼叫的被叫方身份标识获得签约运 营商出口网关控制功能单元地址；  Obtaining the operator's exit gateway control function unit address according to the user's equal access to the subscription data and the called party identity of the call;
该方法进一步包括： 将呼叫请求消息发送到签约运营商网络的出口 网关控制功能单元。  The method further includes: transmitting a call request message to an exit gateway control functional unit of the contract carrier network.
6、 根据权利要求 1 所述的方法， 其特征在于， 所述根据该平等接 入签约数据得到用户的路由策略包括：  The method according to claim 1, wherein the obtaining a routing policy of the user according to the equal access subscription data comprises:
根据用户平等接入签约数据和呼叫的被叫方身份标识获得签约运 营商互通边界控制功能单元地址；  Obtaining the address of the contracting operator's interworking boundary control function unit according to the user's equal access to the subscription data and the called party identity of the call;
该方法进一步包括： 将呼叫请求消息发送到签约运营商网络的互通 边界控制功能单元。  The method further includes: transmitting a call request message to an interworking boundary control functional unit of the contract carrier network.
7、 根据权利要求 1 所述的方法， 其特征在于， 根据所述路由策略 选择用户签约运营商的路由之前， 进一步包括：  The method according to claim 1, wherein before the routing of the subscriber subscription operator is selected according to the routing policy, the method further includes:
设置一初始路由规则， 其中  Set an initial routing rule, where
所述初始路由规则包括用户平等接入签约数据和与用户平等接入 签约数据对应的路由策略。  The initial routing rule includes a user equal access subscription data and a routing policy corresponding to the user accessing the subscription data.
8、 根据权利要求 7所述的方法， 其特征在于， 所述初始路由规则 进一步包括用户私有标识标签和路由配置标签；  The method according to claim 7, wherein the initial routing rule further includes a user private identification label and a routing configuration label;
私有标识标签包括用户私有身份标识；  The private identification tag includes a user's private identity;
所述路由地址保存在路由配置标签中。 The routing address is stored in the routing configuration tag.
9、 根据权利要求 8 所述的方法， 其特征在于， 所述路由配置标签 包括用户公用身份标识标签和路由过滤规则标签； 用户公用身份标识标 签包括用户会话初始化协议的统一资源标识和 /或电话统一资源定位符； 路由过滤规则标签包括触发点标签和路由策略信息标签； 触发点标签包 括服务点触发器关系及服务点触发器描述； 路由策略信息标签包括匹配 服务点触发器描述条件的所述路由策略； 服务点触发器标签包括环境描 述标签、 服务点触发器组标签以及服务点触发器匹配条件。 9. The method according to claim 8, wherein the routing configuration label comprises a user public identity label and a route filtering rule label; the user public identity label comprises a uniform resource identifier of the user session initiation protocol and/or a phone. a uniform resource locator; a route filtering rule label includes a trigger point label and a routing policy information label; a trigger point label includes a service point trigger relationship and a service point trigger description; and the routing policy information label includes the matching service point trigger description condition Routing policy; The service point trigger tag includes an environment description tag, a service point trigger group tag, and a service point trigger matching condition.
10、 根据权利要求 7所述的方法， 其特征在于， 根据所述路由策略 选择用户签约运营商的路由之前， 进一步包括：  The method according to claim 7, wherein before the routing of the subscriber subscription operator is selected according to the routing policy, the method further includes:
将所述初始路由规则发送给为用户服务的服务呼叫会话控制功能 单元， 所述服务呼叫会话控制功能单元在用户发起呼叫会话请求时执行 该初始路由规则完成路由策略。  And transmitting the initial routing rule to a serving call session control function unit serving a user, where the serving call session control function unit performs the initial routing rule completion routing policy when the user initiates a call session request.
11、 根据权利要求 9所述的方法， 其特征在于， 在所述触发点标签 中， 采用正态表达式描述各个服务点触发器， 所述服务点触发器匹配条 件包含：  The method according to claim 9, wherein in the trigger point label, each service point trigger is described by a normal expression, and the service point trigger matching condition includes:
请求统一资源标识标签， 用于标识该请求所指向的资源；  Requesting a uniform resource identification tag, which is used to identify the resource pointed to by the request;
会话初始化协议方法标签， 用于表示该请求的类型；  Session initialization protocol method tag, used to indicate the type of the request;
会话初始化协议消息头， 用于包含与该请求相关的信息；  a session initiation protocol message header for containing information related to the request;
会话情形标签， 用于给出会话的三个可能值， 包括会话起始、 会话 终止、 会话终止未注册;  Session condition tag, used to give three possible values of the session, including session start, session termination, and session termination are not registered;
会话描述标签， 用于定义针对会话初始化协议方法体内的任何会话 描述协议字段内容的服务点触发器。  A session description tag that defines a service point trigger that describes the contents of the protocol field for any session within the session initialization protocol method body.
12、根据权利要求 9所述的方法，其特征在于， 没有给出触发点时， 初始路由规则表示无条件路由到指定地址。  The method according to claim 9, wherein when no trigger point is given, the initial routing rule indicates unconditional routing to the specified address.
13、 根据权利要求 9所述的方法， 其特征在于， 所述服务呼叫会话 控制功能单元在匹配触发点后， 执行路由策略信息标签中给出的路由策 略。 13. The method of claim 9, wherein the service call session After the control function unit matches the trigger point, the routing policy given in the routing policy information label is executed.
14、 居权利要求 13 所述的方法， 其特征在于， 所述路由策略信 息包含路由需要经过的一跳或者多跳；  The method of claim 13, wherein the routing policy information includes one or more hops that the route needs to pass;
则匹配触发点后， 执行路由策略信息标签中给出的路由策略为： 将 呼叫会话请求消息发送给路由策略标签中的下一跳。  After the trigger point is matched, the routing policy given in the routing policy information label is: Send the call session request message to the next hop in the routing policy label.
15、 根据权利要求 13 所述的方法， 其特征在于， 进一步包括： 在 匹配触发点后， 执行路由策略信息标签中给出的路由策略之前， 将路由 策略信息中包含路由策略需要经过的一跳或者多跳地址信息放入呼叫 请求消息的 Route头域。  The method according to claim 13, further comprising: after performing the routing policy in the routing policy information label after the matching trigger point, the routing policy information includes a hop to be adopted by the routing policy Or the multi-hop address information is placed in the Route header field of the call request message.
16、 根据权利要求 15 所述的方法， 其特征在于， 如果在呼叫请求 消息中已经包含 Route头域， 将路由策略信息中包含路由策略需要经过 的一跳或者多跳的地址信息放入呼叫请求消息的 Route头域的顶部或是 底部。  The method according to claim 15, wherein if the route header field is already included in the call request message, the routing policy information includes the one-hop or multi-hop address information that the routing policy needs to pass into the call request. The top or bottom of the Route header field of the message.
17、 根据权利要求 7所述的方法， 其特征在于， 当同时存在初始过 滤规则和初始路由规则时， 优先执行初始过滤规则， 再执行初始路由规 则。  The method according to claim 7, wherein when the initial filtering rule and the initial routing rule exist at the same time, the initial filtering rule is preferentially executed, and the initial routing rule is executed.
18、 根据权利要求 10所述的方法， 其特征在于， 所述将初始路由 规则发送给为用户服务的服务呼叫会话控制功能单元为：  18. The method according to claim 10, wherein the sending the initial routing rule to the serving call session control function unit serving the user is:
在接收到服务呼叫会话控制功能单元的服务器分配请求命令后 , 将 初始路由规则携带在服务器分配应答命令中发送给服务呼叫会话控制 功能单元。  After receiving the server allocation request command of the serving call session control function unit, the initial routing rule is carried in the server allocation response command and sent to the service call session control function unit.
19、 根据权利要求 10所述的方法， 其特征在于， 所述将所述初始 路由规则发送给为用户服务的服务呼叫会话控制功能单元为：  The method according to claim 10, wherein the sending the initial routing rule to a service call session control function unit serving a user is:
将初始路由规则携带在推送配置请求中发送到所述服务呼叫会话 控制功能单元。 Carrying the initial routing rule in the push configuration request and sending it to the service call session Control function unit.
20、 一种在分组网中实现平等接入的方法， 包括：  20. A method of achieving equal access in a packet network, comprising:
根据预先存储的用户的平等接入签约数据得到用户的路由策略； 设置包括所述的用户平等接入签约数据和对应的路由策略的初始 路由规则；  Obtaining a routing policy of the user according to the pre-stored equal access subscription data; setting an initial routing rule including the user equal access subscription data and a corresponding routing policy;
在收到用户呼叫请求消息时， 执行所述初始路由规则。  The initial routing rule is executed upon receipt of the user call request message.
21、 根据权利要求 20所述的方法， 其特征在于， 所述初始路由规 则进一步包括用户私有标识标签和路由配置标签；  The method according to claim 20, wherein the initial routing rule further comprises a user private identification label and a routing configuration label;
私有标识标签包括用户私有身份标识；  The private identification tag includes a user's private identity;
所述路由地址保存在路由配置标签中。  The routing address is stored in the routing configuration tag.
22、 根据权利要求 20所述的方法， 其特征在于， 所述路由配置标 签包括用户公用身份标识标签和路由过滤规则标签； 用户公用身份标识 标签包括用户会话初始化协议的统一资源标识和 /或电话统一资源定位 符； 路由过滤规则标签包括触发点标签和路由策略信息标签； 触发点标 签包括服务点触发器关系及服务点触发器描述； 路由策略信息标签包括 匹配服务点触发器描述条件的所述路由策略； 服务点触发器标签包括环 境描述标签、 服务点触发器组标签以及服务点触发器匹配条件。  22. The method according to claim 20, wherein the routing configuration label comprises a user public identity label and a route filtering rule label; the user public identity label comprises a uniform resource identifier of the user session initiation protocol and/or a phone. a uniform resource locator; a route filtering rule label includes a trigger point label and a routing policy information label; a trigger point label includes a service point trigger relationship and a service point trigger description; and the routing policy information label includes the matching service point trigger description condition Routing policy; The service point trigger tag includes an environment description tag, a service point trigger group tag, and a service point trigger matching condition.
23、 根据权利要求 20所述的方法， 其特征在于， 所述初始路由规 则设置在归属用户服务器中， 则该方法进一步包括：  The method according to claim 20, wherein the initial routing rule is set in a home subscriber server, the method further includes:
从所述归属用户服务器接收所述初始路由规则， 在用户发起呼叫会 话请求时执行该初始路由规则完成路由策略。  The initial routing rule is received from the home subscriber server, and the initial routing rule completion routing policy is executed when the user initiates a call conference request.
24、 根据权利要求 22所述的方法， 其特征在于， 在所述触发点标 签中， 采用正态表达式描述各个服务点触发器， 所述服务点触发器'匹配 条件包含：  The method according to claim 22, wherein in the trigger point label, each service point trigger is described by a normal expression, and the service point trigger 'matching condition includes:
请求统一资源标识标签， 用于标识该请求所指向的资源； 会话初始化协议方法标签， 用于表示该请求的类型； 会话初始化协议消息头， 用于包含与该请求相关的信息； Requesting a uniform resource identification tag, which is used to identify the resource pointed to by the request; a session initialization protocol method tag, configured to indicate a type of the request; a session initiation protocol message header, configured to include information related to the request;
会话情形标签， 用于给出会话的三个可能值， 包括会话起始、 会话 终止、 会话终止未注册；  Session condition tag, used to give three possible values of the session, including session start, session termination, and session termination are not registered;
会话描述标签， 用于定义针对会话初始化协议方法体内的任何会话 描述协议字段内容的服务点触发器。  A session description tag that defines a service point trigger that describes the contents of the protocol field for any session within the session initialization protocol method body.
25、 根据权利要求 22所述的方法， 其特征在于， 没有给出触发点 时， 初始路由规则表示无条件路由到指定地址。  25. Method according to claim 22, characterized in that, when no trigger point is given, the initial routing rule indicates unconditional routing to the specified address.
26、 根据权利要求 22所述的方法， 其特征在于， 在匹配触发点后， 执行路由策略信息标签中给出的路由策略。  The method according to claim 22, wherein after the trigger point is matched, the routing policy given in the routing policy information label is executed.
27、 根据权利要求 26所述的方法， 其特征在于， 所述路由策略信 息包含路由需要经过的一跳或者多跳； 则在匹配触发点后， 执行路由策 略信息标签中给出的路由策略为： 将呼叫会话请求消息发送给路由策略 标签中的下一跳。  The method according to claim 26, wherein the routing policy information includes one or more hops that the route needs to pass; after the matching trigger point, the routing policy given in the routing policy information label is : Sends a call session request message to the next hop in the Routing Policy tab.
28、 根据权利要求 26 所述的方法， 其特征在于， 进一步包括： 在 匹配触发点之后， 执行路由策略信息标签中给出的路由策略之前， 将路 由策略信息中包含路由策略需要经过的一跳或者多跳地址信息放入呼 叫请求消息的 Route头域。  The method according to claim 26, further comprising: after performing the routing policy in the routing policy information label after the matching trigger point, the routing policy information includes a hop to be adopted by the routing policy Or the multi-hop address information is placed in the Route header field of the call request message.
29、 根据权利要求 28 所述的方法， 其特征在于， 如果在呼叫请求 消息中已经包含 Route头域， 将路由策略信息中包含路由策略需要经过 的一跳或者多跳的地址信息放入呼叫请求消息的 Route头域的顶部或是 底部。  The method according to claim 28, wherein if the route header field is already included in the call request message, the routing policy information includes one or more hops of address information that the routing policy needs to pass into the call request. The top or bottom of the Route header field of the message.
30、 根据权利要求 20所述的方法， 其特征在于， 当同时存在初始 过滤规则和初始路由规则时, 所述优先执行初始过滤规则， 再执行初始 路由规则。 The method according to claim 20, wherein when the initial filtering rule and the initial routing rule exist simultaneously, the initial execution of the initial filtering rule is performed, and then the initial routing rule is executed.
31、 根据权利要求 23 所述的方法， 其特征在于， 所述从归属用户 服务器接收所述初始路由规则为： The method according to claim 23, wherein the receiving the initial routing rule from a home subscriber server is:
从归属用户服务器接收携带所述初始路由规则的服务器分配应答 命令。  A server assignment response command carrying the initial routing rule is received from a home subscriber server.
32、 根据权利要求 23 所述的方法， 其特征在于， 所述从归属用户 服务器接收所述初始路由规则为：  32. The method according to claim 23, wherein the receiving the initial routing rule from a home subscriber server is:
从归属用户服务器接收携带所述初始路由规则的推送配置请求。 A push configuration request carrying the initial routing rule is received from a home subscriber server.
33、 一种在分组网中实现平等接入的系统， 包括： 33. A system for achieving equal access in a packet network, comprising:
第一逻辑网元， 存储用户的平等接入签约数据， 根据用户的平等接 入签约数据得到用户的路由策略， .并将所述路由策略携带在呼叫请求消 息中； 和  The first logical network element stores the user's equal access subscription data, obtains the user's routing policy according to the user's equal access to the subscription data, and carries the routing policy in the call request message;
第二逻辑网元， 接收携带所述路由策略的呼叫请求消息， 根据所述 路由策略选择用户签约运营商的路由。  The second logical network element receives the call request message carrying the routing policy, and selects a route of the user subscription carrier according to the routing policy.
34、 根据权利要求 33所述的系统， 其特征在于， .  34. The system of claim 33, wherein: .
所述第一逻辑网元为接入网关控制功能单元， 平等接入服务器， 出 口网关控制功能单元或互通边界控制功能单元；  The first logical network element is an access gateway control function unit, an equal access server, an egress gateway control function unit or an interworking boundary control function unit;
所述第二逻辑网元是出口网关控制功能单元或互通边界控制功能 单元。  The second logical network element is an egress gateway control function unit or an interworking boundary control function unit.
35、 一种在分组网中实现平等接入的系统， 包括服务呼叫会话控制 功能单元， 用于根据预先存储的用户的平等接入签约数据得到用户的路 由策略；  35. A system for achieving equal access in a packet network, comprising a service call session control function unit, configured to obtain a user routing policy according to the pre-stored equal access subscription data of the user;
设置包括所述的用户平等接入签约数据和对应的路由策略的初始 路由规则；  Setting an initial routing rule including the user equal access subscription data and a corresponding routing policy;
在收到用户呼叫请求消息时， 执行所述初始路由规则。  The initial routing rule is executed upon receipt of the user call request message.
36、 根据权利要求 35 所述的系统， 其特征在于， 进一步包括归属 用户服务器， 用于保存所述初始路由规则， 并将所述初始路由规则发送 给服务呼叫会话控制功能单元。 36. The system of claim 35, further comprising attribution a user server, configured to save the initial routing rule, and send the initial routing rule to a serving call session control function unit.
37、 一种在分组网中实现平等接入的服务呼叫会话控制功能单元， 其特征在于， 包括：  37. A service call session control function unit for implementing equal access in a packet network, comprising:
设置单元， 用于根据预先存储的用户的平等接入签约数据得到用户 的路由策略， 并设置包括所述的用户平等接入签约数据和对应的路由策 略的初始路由规则；  a setting unit, configured to obtain a routing policy of the user according to the pre-stored equal access subscription data, and set an initial routing rule that includes the user equal access subscription data and a corresponding routing policy;
执行单元， 在收到用户呼叫请求消息时， 执行所述初始路由规则。 The execution unit executes the initial routing rule when receiving the user call request message.
38、 根据权利要求 37所述的服务呼叫会话控制功能单元， 其特征 在于， 所述初始路由规则进一步包括用户私有标识标签和路由配置标 佥； 38. The service call session control function unit according to claim 37, wherein the initial routing rule further comprises a user private identification label and a routing configuration label;
私有标识标签包括用户私有身份标识；  The private identification tag includes a user's private identity;
所述路由地址保存在路由配置标签中。  The routing address is stored in the routing configuration tag.
PCT/CN2007/000411 2006-02-22 2007-02-07 A method for equality accessing in the packet network and the system thereof WO2007095836A1 (en)

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