WO2010009658A1 - 一种语音呼叫连续性业务的实现方法和网络设备、网络系统 - Google Patents

一种语音呼叫连续性业务的实现方法和网络设备、网络系统 Download PDF

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Publication number
WO2010009658A1
WO2010009658A1 PCT/CN2009/072758 CN2009072758W WO2010009658A1 WO 2010009658 A1 WO2010009658 A1 WO 2010009658A1 CN 2009072758 W CN2009072758 W CN 2009072758W WO 2010009658 A1 WO2010009658 A1 WO 2010009658A1
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Prior art keywords
control point
service control
message
service
voice call
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PCT/CN2009/072758
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English (en)
French (fr)
Inventor
成义华
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09799973A priority Critical patent/EP2288204B1/en
Publication of WO2010009658A1 publication Critical patent/WO2010009658A1/zh
Priority to US12/980,890 priority patent/US8249588B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13097Numbering, addressing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13098Mobile subscriber
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13102Common translator
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103Memory
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13141Hunting for free outlet, circuit or channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13196Connection circuit/link/trunk/junction, bridge, router, gateway
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204Protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13248Multimedia
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13345Intelligent networks, SCP
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • H04W80/10Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for implementing a voice call continuity service, a network device, and a network system.
  • 3GPP 3rd Generation Partnership Project
  • VCC Voice Call Continuity
  • IMS IP Multimedia Subsystem, IP Multimedia System
  • 2G 2nd Generation, 2nd Generation Mobile Communication Technology
  • 3G 3rd Generation, 3rd Generation Mobile Communication Technology
  • 3GPP defines a reference model for implementing VCC services in 3GPP TS 23.206, as shown in FIG. 1 , which is a schematic diagram of networking of VCC service systems in the prior art, HLR (Home Location Register) and HSS (Home Subscriber) Server, home subscriber server) in the figure Separately, in actual deployment, the operator can combine the HLR and HSS according to the capabilities of the equipment.
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • the proportion of prepaid users is relatively high, the proportion of prepaid users is generally over 70%, some operators even up to 95%, prepaid and other intelligent services, such as VPN (Virtual Private Network, virtual private network)
  • VPN Virtual Private Network, virtual private network
  • SCP Service Control Point
  • VCC services can only be carried out for mobile users who have not opened intelligent services.
  • the proportion of mobile users in the business is extremely small, and the implementation of VCC services is greatly limited.
  • the embodiment of the present invention provides a method for implementing a voice call continuity service, a network device, and a network system, which uses a new SCPvcc to support the VCC service, reduces the difficulty of connecting with the existing network device, and reduces the upgrade of the existing network device. Changes to reduce the impact on the existing network business.
  • An embodiment of the present invention provides a method for implementing a voice call continuity service, including: receiving an initial detection point message from a mobile switching center; Detecting whether a subsequent message from the service control point is a connection operation or a connection operation, and if the subsequent message from the service control point is the connection operation or the connection operation, copying the connection operation or the connection operation to a new one In the connection message, the new connection message is sent to the mobile switching center to implement a voice call continuity service.
  • an embodiment of the present invention provides a network device, including:
  • the query module is configured to query whether the address of the service control point to which the user belongs is null;
  • a sending module configured to send the initial test point message to the service control point when the query module queries that the service control point address is not empty;
  • a detecting module configured to detect whether a subsequent message sent by the service control point is a connection operation or a connection operation
  • a copying module configured to: when the detecting module detects that the subsequent message sent by the service control point is the connection operation or the connection operation, copy the connection operation or the connection operation to a new one sent to the mobile switching center
  • the connection message is used to implement voice call continuity services.
  • an embodiment of the present invention provides a network system, including a mobile switching center, a voice call continuity service control point, and a service control point:
  • the mobile switching center is configured to send an initial test pilot message to the voice call continuity service control point, and receive a new connection message sent by the voice call continuity service control point;
  • the voice call continuity service control point is configured to receive an initial test point message sent by the mobile switching center, and query whether the service control point address to which the user belongs is empty, if the service control point address is not empty, then Sending, by the service control point, the initial detection point message, detecting whether a subsequent message from the service control point is a connection operation or a connection operation, if a subsequent message from the service control point is the connection operation or a connection operation, And copying the connection operation or the connection operation to the new connection message, and sending the new connection message to the mobile switching center; the service control point, configured to receive the voice call continuity service control The point sends the initial detection point message, and sends a subsequent message to the voice call continuity service control point according to the initial detection point message.
  • the technical solution of the embodiment of the present invention has at least the following advantages, because the added SCPvcc is used to support the VCC service, thereby achieving the effect of supporting the VCC service for all mobile users, reducing the difficulty of docking with the existing network device, and reducing the Upgrade or change the existing network equipment to reduce the impact on the existing network services.
  • FIG. 1 is a schematic diagram of networking of a VCC service system in the prior art
  • FIG. 2 is a schematic diagram of networking of a VCC service system according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of SCPvcc in an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for implementing a VCC service according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a specific implementation manner of a VCC service according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of another specific implementation manner of a VCC service according to an embodiment of the present invention
  • FIG. 7 is a flowchart of an account opening of a VCC service according to an embodiment of the present invention.
  • FIG. 8 is a flow chart of a customer of a VCC service according to an embodiment of the present invention. detailed description
  • a network element may be added to provide VCC services.
  • the network element can be an SCP-compatible function.
  • a schematic diagram of a VCC service system networking in the embodiment of the present invention includes: a mobile switching center 201, configured to send an initial test point message to a voice call continuity service control point 202, and receive voice call continuity service control. a new connection message sent by point 202;
  • the voice call continuity service control point 202 is configured to receive an initial test point message sent by the mobile switching center 201, and query whether the service control point address to which the user belongs is empty. If the service control point address is not empty, the service control point 203 is sent to the service control point 203. Sending an initial detection point message, detecting whether a subsequent message from the service control point 203 is a Connect operation or a Continue operation, and if the subsequent message from the service control point 203 is a connection operation or a connection operation, the connection operation or The connection operation is copied to the new connection message, and the new connection message is sent to the mobile switching center 201.
  • the service control point 203 is configured to receive the voice call continuity service control point 202 to send an initial detection point message, and according to the initial detection point message to the voice The call continuity service control point sends subsequent messages.
  • the SCP (ie, the service control point 203) that provides the smart service for the mobile users (including the prepaid users and the postpaid users) is called SCPin, and the newly added network elements for providing the VCC service are compatible.
  • the function of the SCP ie, the voice call continuity service control point 202 is called SCPvcc, and the SCPvcc can be used with the live network VMSC (Visitor Mobile Switching Center) (ie, the mobile switching center 201) and the SCPin.
  • VMSC Voice Call continuity service control point 202
  • VMSC Voice Call continuity service control point 201
  • SCPvcc can be used with the live network VMSC (Visitor Mobile Switching Center) (ie, the mobile switching center 201) and the SCPin.
  • CAMEL Application Part, Mobile Network Custom Application Enhancement Logic Application Part) Protocol SCPvcc can use MAP (Mobile Applecation Part) protocol with HLR.
  • the foregoing SCPin ie, service control point 203) and SCPvcc (ie, voice call continuity service control point 202) may be separately set in the network system, or may be combined and integrated, that is, if After the SCPin upgrade of the existing network supports the SCPvcc function, SCPin and SCPvcc can be combined, and the upgraded SCP provides both the existing intelligent service and the VCC service.
  • FIG. 3 it is a structural diagram of SCPvcc in the embodiment of the present invention, including:
  • the first receiving module 301 is configured to receive a mobile switching center MSC (Mobile Switching)
  • MSC Mobile Switching
  • IDP Initial Detect Point
  • the querying module 302 is configured to query, after the receiving module 301 receives the IDP message sent by the MSC, whether the SCP address to which the user belongs in the storage module 311 is empty.
  • the first sending module 303 is configured to send an IDP message to the SCP and interact with the SCP if the query module 302 queries that the SCP address is not empty.
  • the second sending module 304 if the query module 302 queries the SCP address to be empty, is used to send a Connect message to the MSC to implement the VCC service.
  • the detecting module 305 is configured to detect, after the first sending module 303 sends an IDP message to the SCP, whether the subsequent message sent by the SCP is a Connect operation or a Continue operation.
  • the third sending module 307 is configured to send a new Connect message to the MSC after the copying module 306 copies the Connect operation or the Continue operation into the new Connect message.
  • the first forwarding module 308 is configured to: after the first sending module 303 sends an IDP message to the SCP,
  • Subsequent messages sent by the MSC are forwarded to the SCP.
  • the second forwarding module 309 is configured to forward the subsequent message sent by the SCP to the MSC if the detecting module 305 detects that the subsequent message is not a Connect operation or a Continue operation.
  • the second receiving module 310 is configured to receive an account opening information sent by the service operation support system BOSS and an SCP address to which the user belongs;
  • the storage module 311 is configured to store an SCP address of the user that is received by the second receiving module 310.
  • the storage module can be a receipt library or the like.
  • FIG. 4 it is a flowchart of a method for implementing a VCC service according to an embodiment of the present invention, which includes the following steps:
  • Step 401 Query whether the SCP address to which the user belongs in the receipt database is empty.
  • step 402 is performed.
  • Step 402 Send an IDP message to the SCP, and interact with the SCP.
  • the SCP address to which the user belongs is not empty, and the IDP message is sent to the SCP and interacts with the SCP.
  • Step 403 Detect whether the subsequent message sent by the SCP is a Connect operation or a Continue operation, and if yes, perform step 405; otherwise, perform step 404.
  • Step 404 Forward the subsequent message sent by the SCP to the MSC.
  • step 405 the Connect operation or the Continue operation is copied to the new Connect message. If the subsequent message sent by the SCP is a Connect operation or a Continue operation, the Connect operation or the Continue operation is copied to the new Connect message, and a new Connect message is sent to the MSC to implement the VCC service.
  • the newly added SCPvcc is used to support the VCC service, thereby achieving the effect of supporting the VCC service for all mobile users, and reducing the equipment with the existing network. Difficulty in connecting, reducing the upgrade or modification of existing network devices, and reducing the impact on the existing network services.
  • FIG. 5 it is a schematic flowchart of a VCC user making a call in a CS domain according to an embodiment of the present invention, including the following steps:
  • Step 501 the user (UE-A) makes a call.
  • step 502 the user connects the call to the VMSC.
  • step 503 the VMSC triggers the calling service process.
  • Step 504 The VMSC sends an IDP message to the SCPvcc.
  • Step 505 After receiving the IDP message, the SCPvcc queries the receipt database to check whether the intelligent service home SCP address of the user A is empty. If the address is empty, step 513 is performed; if the address is not empty, step 506 is performed.
  • Step 506 The SCPvcc copies the parameters in the IDP message received from the VMSC, and sends an IDP message to the intelligent service home SCP (SCPin) of the user A.
  • SCPin intelligent service home SCP
  • Step 507 After receiving the IDP message, the SCPin starts the business logic to interpret the execution.
  • Step 508 SCPin sends a follow-up message to SCPvcc.
  • Step 509 The SCPvcc forwards the subsequent message sent by the VMSC directly to the SCPin.
  • Step 510 The SCPvcc detects whether the subsequent message sent by the SCPin is a Connect or Continue operation. If the operation is not the above two operations, step 511 is performed; otherwise, step 512 is performed.
  • Step 511 The SCPvcc forwards the subsequent message sent by the SCPin to the VMSC directly.
  • Step 512 the parameters in the SCPvcc copy operation are filled in the new Connect message.
  • Step 513 SCPvcc adds a prefix Prefix to the called number, and sends a Connect message to the VMSC.
  • the prefix is used to instruct the VMSC to route the call to the MGCF (Media Gateway Control Function) & MGW (Media Gateway, Media Gateway) ) Anchoring is performed by the operator when conducting business.
  • MGCF Media Gateway Control Function
  • MGW Media Gateway, Media Gateway
  • Step 514 after receiving the Connect operation, the VMSC according to the called number in the Connect operation
  • Prefix+B sends an IAM message to the MGCF & MGW to establish a bearer link to the MGCF & MGW.
  • Step 515 After receiving the IAM message, the MGCF initiates a SIP call to the CSCF, and routes the call to the CSCF and the VCC AS for anchor processing.
  • Step 516 The CSCF determines that the call is a VCC call according to the called number Pref ix+B in the Invite message from the MGCF, and sends an Invite message to the VCC AS to perform anchor processing.
  • the called user is in the PS domain, if the called user is in the CS
  • the process of the above method is the same.
  • the flow chart of the VCC user being called in the CS domain in the embodiment of the present invention includes the following steps:
  • Step 601 The GMSC receives the call setup request message IAM from the originating office.
  • Step 602 The GMSC sends an SRI message to the HLR to query the roaming information of the called user.
  • step 603 the HLR returns the T-CSI to the GMSC.
  • Step 604 the GMSC triggers the called service flow.
  • Step 605 The GMSC sends an IDP message to the SCPvcc.
  • Step 606 After receiving the IDP message, the SCPvcc queries the receipt database to check whether the intelligent service home SCP address of the user A is empty. If the address is empty, step 613 is performed; if the address is not empty, step 607 is performed.
  • Step 607 The SCPvcc copies the parameters in the IDP message received from the GMSC, and sends an IDP message to the intelligent service home SCP (SCPin) of the user B.
  • SCPin intelligent service home SCP
  • Step 608 After receiving the IDP message, the SCPin starts the business logic to interpret and execute.
  • Step 609 SCPin sends a follow-up message to SCPvcc.
  • Step 610 The SCPvcc forwards the subsequent message sent by the GMSC directly to the SCPin.
  • Step 611 The SCPvcc detects whether the subsequent message sent by the SCPin checks whether it is a Connect or Continue operation. If the two operations are not the above, step 612 is performed; otherwise, step 613 is performed.
  • Step 612 The SCPvcc forwards the subsequent message sent by the SCPin to the GMSC directly or indirectly.
  • Step 613 the SCPvcc copies the parameters in the Connect or Continue operation, and fills in the new Connect message.
  • Step 614 SCPvcc adds a prefix Prefix to the called number to send a Connect message to the GMSC.
  • the prefix is used to instruct the GMSC to route the call to the MGCF and the MGW for anchoring, which can be specified by the operator when conducting the service.
  • Step 615 After receiving the Connect operation, the GMSC sends an IAM message to the MGCF & MGW according to the called number Prefix+B in the Connect operation, and establishes a bearer link to the MGCF & MGW.
  • Step 616 After receiving the IAM message, the MGCF initiates a SIP call to the CSCF, and routes the call to the CSCF and the VCC AS for anchoring.
  • Step 617 The CSCF determines a VCC call at the time of the call according to the called number Pref ix+B in the Invite message from the MGCF, and sends an Invite message to the VCC AS to perform anchor processing.
  • the calling user is in the CS domain, and if the calling user is in the PS domain, the call is connected to the CS for processing, and the above method is the same.
  • the above two embodiments respectively describe the flow of the VCC user as the calling and called in the CS domain, if both the calling and called users are VCC users, and the calling and called users are located in the network.
  • the processes described in the above two embodiments will be implemented continuously. That is, the flow of the VCC user in the CS domain as the calling party is executed first, and then the VCC user is used as the calling process in the CS domain, and such a change is also within the protection scope of the present invention.
  • the newly added SCPvcc is used to support the VCC service, thereby achieving the effect of supporting the VCC service for all mobile users, reducing the difficulty of connecting with the existing network device, and reducing the connection to the live network. Upgrade or change the device to reduce the impact on the existing network services.
  • the flow chart of the account opening of the VCC service in the embodiment of the present invention includes the following steps: Step 701: Open a user on a BOSS (Business & Operation Support System).
  • BOSS Business & Operation Support System
  • the account holder can be an operator or a user.
  • Step 702 The BOSS transmits the account opening information and the address SCPin of the SCP to which the user belongs to the SCPvcc. If the user does not open any intelligent service, the address SCPin of the home SCP is set to null.
  • the interface or protocol between BOSS and SCPin and SCPvcc follows the interface or protocol in the live network.
  • Step 703 SCPvcc modifies the user data, and modifies the address of the user's intelligent service belonging to the SCP to SC Pin.
  • Step 704 the BOSS sets the user's home SCP address to SCPvcc and transmits it to the HLR.
  • Step 705 the HLR modifies the user data, and sets the home SCP address to SCPvcc.
  • the newly added SCPvcc is used to support the VCC service, so that the VCC service can be quickly implemented and deployed, the upgrade modification of the existing network device is reduced, the workload of docking and the difficulty of docking are reduced, and There is no limit to whether users can open smart services, and they can support the opening of VCC services to all mobile users.
  • the flow chart of the customer of the VCC service in the embodiment of the present invention includes the following steps: Step 801: Debit user A on the BOSS.
  • the account holder can be an operator or a user.
  • Step 802 The BOSS passes the subscriber A's account information to SCPvcc.
  • the interface or protocol between BOSS and SCPin and SCPvcc follows the interface or protocol in the live network.
  • SCPvcc performs account cancellation processing for user A.
  • Step 804 If the user activates other intelligent services, the BOSS sends the intelligent service home SCP address of the user A to the HLR; otherwise, the BOSS sends the null value to the HLR.
  • Step 805 The HLR modifies the home SCP address information of the user A.
  • the technical solution of the embodiment of the present invention has at least the following advantages:
  • the use of the added SCPvcc to support the VCC service achieves the effect of supporting the VCC service for all mobile users, reduces the difficulty of connecting with the existing network device, and reduces the difficulty on the existing network. Upgrade or change the device to reduce the impact on the existing network services.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a
  • the terminal device (which may be a cell phone, a personal computer, a server, or a network device, etc.) performs the methods described in various embodiments of the present invention.

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Description

一种语音呼叫连续性业务的实现方法和网络设备、 网络系统 本申请要求于 2008 年 7 月 21 日提交中国专利局, 申请号为 200810132173. 3 , 发明名称为 "一种语音呼叫连续性业务的实现方法和网络 设备、 网络系统" 的中国专利申请的优先权, 其全部内容通过引用结合在本 申请中。
技术领域
本发明涉及通信技术领域, 特别是涉及一种语音呼叫连续性业务的实现 方法和网络设备、 网络系统。
背景技术 第三代合作伙伴计划(3rd Generation Partnership Project , 以下简称: 3GPP) 标准组织在 3GPP Rel 7 中, 定义了语音呼叫连续性 (Voice Cal l Continuity, 以下简称: VCC ) 的实现方法和装置的规范 (参见 TS 23. 206和 TS24. 206 ), 支持移动用户在电路承载 (Circuit Switched, 以下简称: CS ) 域与分组交换 (Packet Switched, 以下简称: PS ) 域之间进行无缝切换。
但是在规范中, 没有考虑对现有 GSM ( Global System for Mobi le Communications, 全球移动通讯系统) /UMTS ( Universal Mobi le Telecommunications System, 通用移动通讯系统) 智能网用户的支持, 只能 针对非智能用户开展 VCC业务。
在 IMS ( IP Multimedia Subsystem, IP多媒体系统) 布署初期, 现网 2G (2nd Generation, 第二代移动通讯技术) /3G ( 3rd Generation, 第三代移 动通讯技术) 用户占的比例较大, 新拓展的 IMS用户较小, 如果不支持现有 GSM/UMTS智能用户, VCC业务可实施性太差。
3GPP在 3GPP TS 23. 206中定义了实现 VCC业务的参考模型,如图 1所示, 为现有技术中 VCC业务系统组网示意图, HLR (Home Location Register, 归 属位置寄存器) 与 HSS (Home Subscriber Server, 归属用户服务器) 在图中 单独设定, 在实际部署时, 运营商可以根据设备所具备的能力, 将 HLR与 HSS 合设。
发明人在实现本发明的过程中发现, 现有技术至少存在以下缺陷:
■ 各个移动运营商中, 预付费用户比例都比较高, 预付费用户的比 例普遍超过 70 % , 某些运营商甚至高达 95% , 预付费以及其他智 能业务, 如 VPN (Virtual Private Network, 虚拟专用网络) 等, 都是运行在 SCP (Service Control Point, 业务控制点) 上, 这 些用户已经签约了一种智能业务。 上述方案要求申请 VCC业务的 用户必须签约 VCC业务, 但是移动智能网协议不支持同时签约两 种智能业务, 因此, 采用该方案, 只能针对未开通智能业务的移 动用户开展 VCC业务, 未开通智能业务的移动用户比例极少, VCC 业务实施受到极大限制。
■ 新增 SCP与 VCC AS (Appl ication Server, 应用服务器) 之间的 接口, 如果采用 SCP来开展 VCC业务, 需要升级现网 SCP软件, 将会影响到现网 SCP上所承载的智能业务。
■ 没有定义 SCP与 VCC AS之间的接口, 需要 VCC AS和现网 SCP进 行对接测试, 当 VCC AS与 SCP是不同厂家的设备时, 对接成功难 度较大。 发明内容
本发明实施例提供一种语音呼叫连续性业务的实现方法、 网络设备和网 络系统,采用了新增的 SCPvcc来支持 VCC业务,降低与现网设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网业务的影响。
本发明实施例一方面提出一种语音呼叫连续性业务的实现方法, 包括: 接收来自移动交换中心的初始检测点消息; 检测来自所述业务控制点的后续消息是否为连接操作或接续操作, 如果 来自所述业务控制点的后续消息是所述连接操作或接续操作, 则将所述连接 操作或接续操作复制到新的连接消息中, 向所述移动交换中心发送所述新的 连接消息, 以实现语音呼叫连续性业务。
另一方面, 本发明实施例提出一种网络设备, 包括:
查询模块, 用于查询用户归属的业务控制点地址是否为空;
发送模块, 用于当所述查询模块查询所述业务控制点地址不为空时, 向 所述业务控制点发送所述初始测试点消息;
检测模块, 用于检测所述业务控制点发送的后续消息是否为连接操作或 接续操作;
复制模块, 用于当所述检测模块检测到所述业务控制点发送的后续消息 是所述连接操作或接续操作时, 将所述连接操作或接续操作复制到向所述移 动交换中心发送的新的连接消息中, 以实现语音呼叫连续性业务。
另一方面, 本发明实施例提出一种网络系统, 包括移动交换中心、 语音 呼叫连续性业务控制点和业务控制点:
所述移动交换中心, 用于向所述语音呼叫连续性业务控制点发送初始测 试点消息, 接收所述语音呼叫连续性业务控制点发送的新的连接消息;
所述语音呼叫连续性业务控制点, 用于接收所述移动交换中心发送的初 始测试点消息, 查询用户归属的业务控制点地址是否为空, 如果所述业务控 制点地址不为空, 则向所述业务控制点发送所述初始检测点消息, 检测来自 所述业务控制点的后续消息是否为连接操作或接续操作, 如果来自所述业务 控制点的后续消息是所述连接操作或接续操作, 则将所述连接操作或接续操 作复制到所述新的连接消息中, 向所述移动交换中心发送所述新的连接消息; 所述业务控制点, 用于接收所述语音呼叫连续性业务控制点发送所述初 始检测点消息, 根据所述初始检测点消息向所述语音呼叫连续性业务控制点 发送后续消息。 本发明实施例的技术方案至少具有以下优点, 因为采用了新增的 SCPvcc 来支持 VCC业务, 从而, 达到了支持对所有移动用户开展 VCC业务的效果, 降低与现网设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网 业务的影响。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不 付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为现有技术中 VCC业务系统组网示意图;
图 2为本发明实施例中 VCC业务系统组网示意图;
图 3为本发明实施例中 SCPvcc结构图;
图 4为本发明实施例中 VCC业务的实现方法流程图;
图 5为本发明实施例中 VCC业务的一种具体实现方式流程图;
图 6为本发明实施例中 VCC业务的另一种具体实现方式流程图; 图 7为本发明实施例中 VCC业务的开户流程图;
图 8为本发明实施例中 VCC业务的销户流程图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
下面结合附图和实施例, 对本发明的具体实施方式作进一步详细描述: 在本发明实施例的 VCC业务系统中, 可以增加一个网元来提供 VCC业务, 该网元可以是兼容 SCP的功能。
如图 2所示, 为本发明实施例中 VCC业务系统组网示意图, 包括: 移动交换中心 201,用于向语音呼叫连续性业务控制点 202发送初始测试 点消息, 接收语音呼叫连续性业务控制点 202发送的新的连接消息;
语音呼叫连续性业务控制点 202,用于接收移动交换中心 201发送的初始 测试点消息, 查询用户归属的业务控制点地址是否为空, 如果业务控制点地 址不为空, 则向业务控制点 203 发送初始检测点消息, 检测来自业务控制点 203 的后续消息是否为连接 (Connect ) 操作或接续 (Continue) 操作, 如果 来自业务控制点 203 的后续消息是连接操作或接续操作, 则将连接操作或接 续操作复制到新的连接消息中, 向移动交换中心 201发送新的连接消息; 业务控制点 203,用于接收语音呼叫连续性业务控制点 202发送初始检测 点消息, 根据初始检测点消息向语音呼叫连续性业务控制点发送后续消息。
为了后续描述方便, 将现网为移动用户 (包括预付费用户和后付费用户) 提供智能业务的 SCP (即业务控制点 203 ) 称为 SCPin, 将新增的以提供 VCC 业务的网元可以兼容 SCP的功能 (即语音呼叫连续性业务控制点 202 ), 称为 SCPvcc , SCPvcc可以与现网 VMSC (Visitor Mobile Switching Center, 拜 访移动交换中心) (即移动交换中心 201 ) 以及 SCPin之间的采用 CAP (CAMEL Application Part, 移动网络定制应用增强逻辑应用部分) 协议, SCPvcc可 以与 HLR采用 MAP (Mobile Applecation Part, 移动应用部分) 协议。
在实际部署时, 上述的 SCPin (即业务控制点 203 )和 SCPvcc (即语音呼 叫连续性业务控制点 202 )可以是分别独立设置于网络系统中, 也可以是合并 设置, 集成为一体, 即如果现网 SCPin升级后支持提供 SCPvcc功能, 则可以 将 SCPin与 SCPvcc合设,由升级后的 SCP同时提供现有智能业务和 VCC业务。
如图 3所示, 为本发明实施例中 SCPvcc结构图, 包括:
第一接收模块 301, 用于接收移动交换中心 MSC (Mobile Switching
Center, 移动交换中心) 发送的 IDP ( Initial Detect Point, 初始检测点) 消息。
查询模块 302, 用于在接收模块 301接收到 MSC发送的 IDP消息后, 查询 存储模块 311中用户归属的 SCP地址是否为空。
第一发送模块 303, 如果查询模块 302查询 SCP地址不为空, 用于向 SCP 发送 IDP消息, 并与 SCP进行交互。
第二发送模块 304, 如果查询模块 302查询 SCP地址为空, 用于向 MSC发 送 Connect消息, 以实现 VCC业务。
检测模块 305, 用于在第一发送模块 303向 SCP发送 IDP消息后, 检测 SCP发送的后续消息是否为 Connect操作或 Continue操作。
复制模块 306, 如果检测模块 305检测到 SCP发送的后续消息是 Connect 操作或 Continue操作, 则将 Connect操作或 Continue操作中的参数复制到 向 MSC发送的新的 Connect消息中, 以实现 VCC业务。
第三发送模块 307, 用于在复制模块 306将将 Connect操作或 Continue 操作复制到新的 Connect消息中后, 向 MSC发送新的 Connect消息。
第一转发模块 308, 用于在第一发送模块 303向 SCP发送 IDP消息后, 将
MSC发送的后续消息转发给 SCP。
第二转发模块 309,如果检测模块 305检测后续消息不是 Connect操作或 Continue操作, 用于将 SCP发送的后续消息转发给 MSC。
第二接收模块 310, 用于接收业务运营支撑系统 BOSS发送的开户信息和 用户归属的 SCP地址;
存储模块 311, 用于存储第二接收模块 310接收的用户归属的 SCP地址。 该存储模块可以是收据库等。
通过应用本发明实施例所提供的网络设备, 采用了新增的 SCPvcc来支持 VCC业务, 从而, 达到了支持对所有移动用户开展 VCC业务的效果, 降低与现 网设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网业务的影 响。 如图 4所示, 为本发明实施例中 VCC业务的实现方法流程图, 包括以下 步骤:
步骤 401, 查询收据库中用户归属的 SCP地址是否为空。
如果归属的 SCP地址为空时, 直接向 VMSC发送 Connect操作;
如果归属的 SCP地址不为空, 则执行步骤 402。
在查询收据库中用户归属的 SCP地址是否为空之前, 接收移动交换中心
MSC发送的 IDP消息。如果用户没有开通任何智能业务, 则用户归属的 SCP地 址为空。
步骤 402, 向 SCP发送 IDP消息, 并与 SCP进行交互。
如果用户已经开通智能业务, 则用户归属的 SCP地址不为空, 向 SCP发 送 IDP消息, 并与 SCP进行交互。
步骤 403,检测所述 SCP发送的后续消息是否为 Connect操作或 Continue 操作, 如果是, 则执行步骤 405; 否则, 执行步骤 404。
步骤 404, 将 SCP发送的后续消息转发给 MSC。
步骤 405,将 Connect操作或 Continue操作复制到新的 Connect消息中。 如果 SCP发送的后续消息是 Connect操作或 Continue操作,则将 Connect 操作或 Continue操作复制到新的 Connect消息中,并向 MSC发送新的 Connect 消息, 以实现 VCC业务。
通过应用本发明实施例所提供的语音呼叫连续性业务的实现方法, 采用 了新增的 SCPvcc来支持 VCC业务,从而,达到了支持对所有移动用户开展 VCC 业务的效果, 降低与现网设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网业务的影响。
如图 5所示, 为本发明实施例中 VCC用户在 CS域作主叫的流程示意图, 包括以下步骤:
步骤 501, 用户 (UE— A) 拨打电话。
步骤 502, 用户将呼叫接续到 VMSC。 步骤 503, VMSC触发主叫业务流程。
步骤 504, VMSC向 SCPvcc发送 IDP消息。
步骤 505, SCPvcc收到 IDP消息后, 查询收据库, 检测用户 A的智能业 务归属 SCP地址是否为空, 如果该地址为空, 则执行步骤 513; 如果该地址不 为空, 则执行步骤 506。
步骤 506, SCPvcc复制从 VMSC收到的 IDP消息中的参数, 向用户 A的智 能业务归属 SCP (SCPin) 发送 IDP消息。
步骤 507, SCPin 收到 IDP消息后, 启动业务逻辑解释执行。
步骤 508, SCPin向 SCPvcc后续消息。
步骤 509, SCPvcc将 VMSC发送的后续消息直接转发给 SCPin。
步骤 510, SCPvcc 检测 SCPin 发送的后续消息是否为 Connect 或者 Continue操作, 如果不是上述两个操作, 则执行步骤 511 ; 否则, 执行步骤 512。
步骤 511, SCPvcc将 SCPin发送的后续消息直接向 VMSC转发。
步骤 512, SCPvcc拷贝操作中的参数, 填入新的 Connect消息中。
步骤 513, SCPvcc在被叫号码前加上前缀 Prefix, 向 VMSC发送 Connect 消息; 该前缀用于指示 VMSC 将呼叫路由到 MGCF (Media Gateway Control Function, 媒体网关控制功能) & MGW (Media Gateway, 媒体网关) 进行锚 定处理, 由运营商在开展业务时指定。
步骤 514, VMSC收到 Connect操作后, 根据 Connect操作中的被叫号码
Prefix+B向 MGCF & MGW发送 IAM消息, 建立到 MGCF & MGW的承载链接。
步骤 515, MGCF收到 IAM消息后, 向 CSCF发起 SIP呼叫, 将呼叫路由到 CSCF与 VCC AS进行锚定处理。
步骤 516, CSCF根据从 MGCF来的 Invite消息中的被叫号码 Pref ix+B, 判断该呼叫是一个 VCC呼叫, 向 VCC AS发送 Invite消息, 进行锚定处理。
本发明实施例所描述的流程中, 被叫用户在 PS域, 如果被叫用户在 CS 域, 上述方法流程相同。
如图 6所示, 为本发明实施例中 VCC用户在 CS域作被叫的流程示意图, 包括以下步骤:
步骤 601, GMSC收到从发端局来的呼叫建立请求消息 IAM。
步骤 602, GMSC向 HLR发送 SRI消息, 查询被叫用户漫游信息。
步骤 603, HLR将 T-CSI返回给 GMSC。
步骤 604, GMSC触发被叫业务流程。
步骤 605, GMSC向 SCPvcc发送 IDP消息。
步骤 606, SCPvcc收到 IDP消息后, 查询收据库, 检测用户 A的智能业 务归属 SCP地址是否为空, 如果该地址为空, 则执行步骤 613; 如果该地址不 为空, 则执行步骤 607。
步骤 607, SCPvcc复制从 GMSC收到的 IDP消息中的参数, 向用户 B的智 能业务归属 SCP (SCPin) 发送 IDP消息。
步骤 608, SCPin收到 IDP消息后, 启动业务逻辑解释执行。
步骤 609, SCPin向 SCPvcc发送后续消息。
步骤 610, SCPvcc将 GMSC发送的后续消息直接转发给 SCPin。
步骤 611, SCPvcc检测 SCPin发送的后续消息检查是否为 Connect或者 Continue操作, 如果不是上述两个操作, 则执行步骤 612; 否则, 执行步骤 613。
步骤 612, SCPvcc将 SCPin发送的后续消息直接或间接向 GMSC转发 步骤 613, SCPvcc复制 Connect或者 Continue操作中的参数, 填入到新 的 Connect消息中。
步骤 614, SCPvcc在被叫号码前加上前缀 Prefix, 向 GMSC发送 Connect 消息。
该前缀用于指示 GMSC将呼叫路由到 MGCF 以及 MGW进行锚定处理, 可以 由运营商在开展业务时指定。 步骤 615, GMSC收到 Connect操作后, 根据 Connect操作中的被叫号码 Prefix+B向 MGCF & MGW发送 IAM消息, 建立到 MGCF & MGW的承载链接。
步骤 616, MGCF收到 IAM消息后, 向 CSCF发起 SIP呼叫, 将呼叫路由到 CSCF与 VCC AS进行锚定处理。
步骤 617, CSCF根据从 MGCF来的 Invite消息中的被叫号码 Pref ix+B, 判断该呼叫时一个 VCC呼叫, 向 VCC AS发送 Invite消息, 进行锚定处理。
本发明实施例所描述的流程中, 主叫用户在 CS域, 如果主叫用户在 PS 域, 呼叫接续到 CS进行处理, 上述方法流程相同。
需要进一步指出的是, 上述两个实施例分别描述了 VCC用户在 CS域作主 叫和被叫的流程示意图, 如果主叫和被叫用户均是 VCC用户, 而且主叫和被 叫用户所在网络均为 CS域时, 上述两个实施例所描述的流程将连续实现。 即 先执行 VCC用户在 CS域作主叫的流程, 然后执行 VCC用户在 CS域作被叫的 流程, 这样的变化同样属于本发明的保护范围。
通过应用本发明实施例所提供的方法, 采用了新增的 SCPvcc来支持 VCC 业务, 从而, 达到了支持对所有移动用户开展 VCC业务的效果, 降低与现网 设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网业务的影响。
如图 7所示, 为本发明实施例中 VCC业务的开户流程图, 包括以下步骤: 步骤 701, 在 BOSS (Business & Operation Support System, 业务运营 支撑系统)上对用户进行开户。 开户者可以是运营商或用户。
步骤 702, BOSS将开户信息和用户归属的 SCP的地址 SCPin传送给 SCPvcc。 如果该用户没有开通任何智能业务, 则将归属的 SCP的地址 SCPin置为 空。 BOSS与 SCPin、 SCPvcc之间的接口或协议沿用现网中的接口或协议。
步骤 703, SCPvcc 修改用户的数据, 将用户的智能业务归属 SCP的地址 修改为 SC Pin。
步骤 704, BOSS将用户的归属 SCP地址设置成 SCPvcc传送到 HLR。
步骤 705, HLR修改用户的数据, 将归属 SCP地址设置成 SCPvcc。 通过应用本发明实施例所提供的网络设备, 采用了新增的 SCPvcc来支持 VCC业务, 从而, 可以快速实施和部署, 减少对现网设备的升级改动, 减少对 接工作量与对接难度, 并对用户是否开通智能业务没有限制, 能支持对所有 移动用户开通 VCC业务。
如图 8所示, 为本发明实施例中 VCC业务的销户流程图, 包括以下步骤: 步骤 801, 在 BOSS上对用户 A进行销户。 销户者可以是运营商或用户。 步骤 802, BOSS将用户 A的销户信息传递给 SCPvcc。
BOSS与 SCPin、 SCPvcc之间的接口或协议沿用现网中的接口或协议。 步骤 803, SCPvcc 对用户 A进行销户处理。
步骤 804, 如果该用户开通了其他智能业务, BOSS将用户 A的智能业务 归属 SCP地址 SCPin发送给 HLR; 否则, BOSS将空值发送给 HLR。
步骤 805, HLR修改用户 A的归属 SCP地址信息。
本发明实施例的技术方案至少具有以下优点: 因为采用了新增的 SCPvcc 来支持 VCC业务, 达到了支持对所有移动用户开展 VCC业务的效果, 降低与 现网设备的对接难度, 减少对现网设备的升级或者改动, 降低对现网业务的 影响。
通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本发 明可借助软件加必需的通用硬件平台的方式来实现, 当然也可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方案 本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质中, 包括若干指令用以使得一台终端 设备 (可以是手机, 个人计算机, 服务器, 或者网络设备等) 执行本发明各 个实施例所述的方法。
以上所述仅是本发明的优选实施方式, 应当指出, 对于本技术领域的普 通技术人员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润 饰, 这些改进和润饰也应视本发明的保护范围。

Claims

权利要求书
1、 一种语音呼叫连续性业务的实现方法, 其特征在于, 包括: 接收来自移动交换中心的初始检测点消息;
查询用户归属的业务控制点地址是否为空;
如果所述业务控制点地址不为空, 则向所述业务控制点发送所述初始检 测点消息, 与所述业务控制点进行交互;
检测来自所述业务控制点的后续消息是否为连接操作或接续操作, 如果 来自所述业务控制点的后续消息是所述连接操作或接续操作, 则将所述连接 操作或接续操作复制到新的连接消息中, 向所述移动交换中心发送所述新的 连接消息, 以实现语音呼叫连续性业务。
2、 如权利要求 1所述语音呼叫连续性业务的实现方法, 其特征在于, 所 述查询用户归属的业务控制点地址是否为空包括:
通过收据库查询用户归属的业务控制点地址是否为空。
3、 如权利要求 1所述语音呼叫连续性业务的实现方法, 其特征在于, 所 述查询用户归属的业务控制点地址是否为空之后, 还包括:
如果所述业务控制点地址为空, 则向所述移动交换中心发送连接消息, 以实现所述语音呼叫连续性业务。
4、 如权利要求 1所述语音呼叫连续性业务的实现方法, 其特征在于, 所 述与业务控制点进行交互之后, 还包括:
将来自所述移动交换中心的后续消息转发给所述业务控制点。
5、 如权利要求 1所述语音呼叫连续性业务的实现方法, 其特征在于, 所 述检测来自所述业务控制点的后续消息是否为连接操作或接续操作之后, 还 包括:
如果所述后续消息不是所述连接操作或接续操作, 则将所述来自业务控 制点的所述后续消息转发给所述移动交换中心。
6、 如权利要求 1所述语音呼叫连续性业务的实现方法, 其特征在于, 所 述接收来自移动交换中心的初始测试点消息之前, 还包括:
接收来自业务运营支撑系统的开户信息和用户归属的业务控制点地址; 将所述用户归属的业务控制点地址存储到所述收据库中。
7、 一种网络设备, 其特征在于, 包括:
查询模块, 用于查询用户归属的业务控制点地址是否为空;
发送模块, 用于当所述查询模块查询所述业务控制点地址不为空时, 向 所述业务控制点发送所述初始测试点消息;
检测模块, 用于检测来自所述业务控制点的后续消息是否为连接操作或 接续操作;
复制模块, 用于当所述检测模块检测到所述业务控制点发送的后续消息 是所述连接操作或接续操作时, 将所述连接操作或接续操作复制到向所述移 动交换中心发送的新的连接消息中, 以实现语音呼叫连续性业务。
8、 如权利要求 7所述网络设备, 其特征在于, 还包括:
第一转发模块, 用于将来自所述移动交换中心的后续消息转发给所述业 务控制点。
9、 如权利要求 7所述网络设备, 其特征在于, 还包括:
第二转发模块, 用于当所述检测模块检测所述后续消息不是所述连接操 作或接续操作时, 将来自所述业务控制点的所述后续消息转发给所述移动交 换中心。
10、 如权利要求 7所述网络设备, 其特征在于, 还包括:
接收模块, 用于接收来自业务运营支撑系统的开户信息和用户归属的业 务控制点地址;
存储模块, 用于存储所述接收模块接收的所述用户归属的业务控制点地 址。
11、 一种网络系统, 其特征在于, 包括移动交换中心、 语音呼叫连续性 业务控制点和业务控制点:
所述移动交换中心, 用于向所述语音呼叫连续性业务控制点发送初始测 试点消息, 接收所述语音呼叫连续性业务控制点发送的新的连接消息;
所述语音呼叫连续性业务控制点, 用于接收所述移动交换中心发送的初 始测试点消息, 查询用户归属的业务控制点地址是否为空, 如果所述业务控 制点地址不为空, 则向所述业务控制点发送所述初始检测点消息, 检测来自 所述业务控制点的后续消息是否为连接操作或接续操作, 如果来自所述业务 控制点的后续消息是所述连接操作或接续操作, 则将所述连接操作或接续操 作复制到所述新的连接消息中, 向所述移动交换中心发送所述新的连接消息; 所述业务控制点, 用于接收所述语音呼叫连续性业务控制点发送所述初 始检测点消息, 根据所述初始检测点消息向所述语音呼叫连续性业务控制点 发送后续消息。
12、 如权利要求 11所述网络系统, 其特征在于, 所述业务控制点和所述 语音呼叫连续性业务控制点分别独立设置, 或者集成为一体。
PCT/CN2009/072758 2008-07-21 2009-07-14 一种语音呼叫连续性业务的实现方法和网络设备、网络系统 WO2010009658A1 (zh)

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