WO2007121646A1 - système de réseau intelligent CDMA et son procédé, dispositif pour réaliser un service d'itinérance internationale - Google Patents

système de réseau intelligent CDMA et son procédé, dispositif pour réaliser un service d'itinérance internationale Download PDF

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Publication number
WO2007121646A1
WO2007121646A1 PCT/CN2007/000343 CN2007000343W WO2007121646A1 WO 2007121646 A1 WO2007121646 A1 WO 2007121646A1 CN 2007000343 W CN2007000343 W CN 2007000343W WO 2007121646 A1 WO2007121646 A1 WO 2007121646A1
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WO
WIPO (PCT)
Prior art keywords
service
international roaming
switching device
network
control device
Prior art date
Application number
PCT/CN2007/000343
Other languages
English (en)
French (fr)
Inventor
Xuanming Lu
Junrong Xu
Jianjun Ding
Yongfeng Cai
Haifeng Xu
Taiyong Dun
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007121646A1 publication Critical patent/WO2007121646A1/zh
Priority to US12/243,399 priority Critical patent/US8060087B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/14Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1453Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network
    • H04L12/1467Methods or systems for payment or settlement of the charges for data transmission involving significant interaction with the data transmission network involving prepayment

Definitions

  • CDMA intelligent network system and method and device for realizing international roaming service The application is submitted to the Chinese Patent Office on April 26, 2006, and the application number is 200610075728.6, and the invention name is "CDMA intelligent network system and its method for realizing international roaming service" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference.
  • the present invention relates to a code division multiple access (CDMA) intelligent network system, and more particularly to a CDMA intelligent network system capable of realizing real-time charging of prepaid subscribers for international roaming and a method and device for implementing the international roaming service.
  • CDMA code division multiple access
  • the protocol for the prior art CDMA smart network system cannot solve the real-time roaming function of the international roaming of the prepaid subscribers, and the following problems mainly exist:
  • VPLMN Visited Public Land Mobile Network
  • HLR Home Location Register
  • the calling party is an HPLMN user
  • the called network user's called flow is triggered at the originating station, that is, triggered on the HPLMN's MSC/SSP, but due to the special requirements of the CDMA protocol, TANSWER (called The response, TDISCONNECT (called hang-up) signaling needs to be reported by the MSC/SSP of the VPLMN. At this time, it may not be reported due to the network. Therefore, the SCP of the HPLMN cannot accurately charge the called party.
  • the originating call of the call is the MSC of the VPLMN.
  • the MSC of the VPLMN recognizes that the called number is the HPLMN number, and then transfers the call to the gateway office of the HPLMN to perform the CDMA network called service logic. Triggering, the signaling process is basically the same as the case where the HPLMN user dials the roaming to the VPLMN user, so the problem that the HPLMN's SCP cannot accurately charge the called party also exists.
  • the HLM of the HPLMN will configure the user's Trigger to the VPLMN's MSC/SSP when the prepaid subscriber terminal performs location registration.
  • the MSC/SSP of the VPLMN and the SCP of the HPLMN cannot perform signaling interaction. Therefore, when the prepaid subscriber initiates the call, the MSC/SSP of the VPLMN cannot be performed.
  • the prepaid user is authenticated, causing the prepaid user to be unable to initiate a call.
  • the MSC/SSP of the VPLMN does not have WIN capability, the MSC/SSP of the VPLMN will not interact with the SCP of the HPLMN, and the prepaid subscriber will not be controlled by the SCP of the HPLMN after international roaming, thus causing prepaid subscribers and postpaid Users can do as much Initiate a call.
  • the CDMA intelligent network of the prior art cannot fully implement the real-time control and charging of the call of the prepaid subscriber after the international roaming, and thus cannot perform the international roaming service of the prepaid subscriber.
  • Embodiments of the present invention provide a CDMA intelligent network system and a method for implementing an international roaming service by the CDMA intelligent network system.
  • a CDMA intelligent network system comprising: a service control device of a home network, a gateway office or an international gateway office, a gateway office of an access network or an international gateway office, and an international roaming service switching device, wherein the service control device and the service exchange Communication is formed between the devices, and the service switching device, the gateway office of the home network or the international gateway office, and the gateway office of the visited network or the international gateway office form a voice path.
  • a method for implementing an international roaming service includes the following steps:
  • the mobile switching center/service switching device of the home network After the call to the prepaid subscriber of the international roaming is triggered on the mobile switching center/service switching device of the home network, if the called user account balance is sufficient, the mobile switching center/service switching device of the visited network allocates the called party Roaming the number and returning it to the service control device of the home network;
  • the service control device of the home network instructs the mobile switching center/service switching device of the home network to route the call session to the international roaming service switching device;
  • the service control device of the home network sends the roaming number to the international roaming service switching device and starts to monitor the call;
  • the international roaming service switching device performs call routing according to the roaming number, and connects to the mobile switching center/service switching device of the visited network to implement the call.
  • a method for implementing an international roaming service includes the following steps:
  • the mobile switching center/service switching device of the visited network acquires a roaming number for the calling user;
  • the service control device instructs the international roaming service switching device to establish a calling channel and The roaming number is sent to the international roaming service switching device and the call monitoring is performed; the service control device instructs the international roaming service switching device to establish a called voice channel to implement the call.
  • An international roaming service switching device performs message exchange with a service control device of a home network of the international roaming user to establish a service route of an international roaming user in the CDMA intelligent network, including:
  • a signaling interaction unit performing signaling interaction with the service control device, and acquiring a roaming number of an international roaming user delivered by the service control device;
  • the session establishing unit is configured to perform call routing according to the roaming number, and establish a calling and called bridged voice channel.
  • a service control device which performs signaling interaction with an international roaming service switching device that supports a customized application part protocol of a mobile network enhanced logic of a global mobile communication system, and controls an international roaming user service, where the service control device includes:
  • the C network interface supports a mobile application part protocol of the CDMA wireless intelligent network, and communicates with the international roaming user's home location register and the mobile switching center/service switching device through the protocol;
  • the G network interface supports a customized application part of the mobile network enhanced logic of the global mobile communication system, and communicates with the international roaming service switching device through the protocol.
  • the embodiment of the present invention introduces an international roaming service switching device in a method for implementing an international roaming service in a CDMA intelligent network system and the CDMA intelligent network system, and when the pre-paid user roams internationally through the international roaming service switching device.
  • the calling process and the called process are completely triggered to the service control device of the home network, and the service control device of the home network performs call monitoring and real-time charging according to the balance of the prepaid user, thereby implementing support for the prepaid user to carry out the international roaming service. .
  • FIG. 1 is a schematic diagram of networking of a CDMA intelligent network system according to an embodiment of the present invention
  • FIG. 2 is a schematic block diagram of an international roaming service switching device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a call when the calling user is located in the HPLMN and the called user is a prepaid subscriber located in the VPLMN in the networking mode shown in FIG. 1;
  • Figure 4 shows that in the networking mode shown in Figure 1, the calling subscriber is located in the HPLMN, and the called subscriber is in the position.
  • FIG. 5 is a schematic diagram of a call of the CDMA intelligent network system of the present invention when the calling subscriber is a prepaid subscriber of international roaming;
  • FIG. 6 is a schematic diagram of a specific signaling flow of the CDMA intelligent network system of the present invention when the calling user is a prepaid subscriber of international roaming;
  • Figure 7 is a schematic block diagram of a preferred embodiment of the traffic control device of the present invention.
  • FIG. 1 is a schematic diagram of networking of a CDMA intelligent network system according to an embodiment of the present invention.
  • the CDMA intelligent network system includes a local public land mobile network (HPLMN) 10 and a visited public land mobile network (VPLMN) 20, and the HPLMN 10 includes a home location register (HLR) 11, a service control device (SCP) 12, a mobile switching center/service exchange.
  • HLR home location register
  • SCP service control device
  • MSC/SSP Equipment
  • GSM Global Mobile Telecommunications System
  • GSM Global System for Mobile Communication
  • G/SSP Global Mobile Telecommunications System
  • G/SSP Global Mobile Telecommunications System
  • GMSC/ISC Global System for Mobile Communication
  • GMSC/ISC International Gateway
  • VPLMN20 including CDMA Gateway or International Gateway (GMSC/ISC) 21 and Mobile Switching Center/Service Switching Equipment (MSC/SSP) 22.
  • GMSC/ISC Mobile Switching Center/Service Switching Equipment
  • the solid line indicates the user's voice path
  • the double-dotted line indicates the mobile application part (CDMA WIN MAP) protocol of the code division multiple access wireless intelligent network
  • the dotted line indicates the customized application part of the mobile network enhanced logic of the global mobile communication system (GSM CAP). )protocol.
  • the MSC/SSP13 and HLR SCP of the HPLMN transmit signaling through the CDMA WIN MAP protocol, and the SCP12 and G/SSP14 of the HPLMN communicate through the GSM CAP protocol, and the MSC/SSP13, G/SSP14
  • the voice path is formed between GMSC/ISC15, GMSC/ISC21 and MSC/SSP22.
  • the GSM CAP protocol and the G/SSP are introduced in the CDMA intelligent network system of the present invention to trigger, control and real-time charging of the international roaming call process, so that the operator can provide prepaid User international roaming business.
  • the specific signaling procedure of the method for implementing the international roaming service of the CDMA intelligent network system in the embodiment of the present invention is described below in two different call situations.
  • the first type of call is that the calling user is at HPLMN and the called user is a prepaid user at VPLMN.
  • Second call The situation is that the calling user is a prepaid user located at VPLMN.
  • FIG. 2 a preferred implementation of the international roaming service switching device provided by the present invention is as shown in FIG. 2:
  • the international roaming service switching device includes a signaling interaction unit 201 and a session establishing unit 202.
  • the signaling interaction unit 201 performs signaling interaction with the service control device to obtain the roaming number of the international roaming user delivered by the service control device.
  • the session establishing unit 202 is configured to establish a calling and called calling channel, and bridge the calling party. Call the way.
  • FIG. 3 is a schematic diagram of a call of a CDMA intelligent network system according to an embodiment of the present invention when a calling subscriber is located in the HPLMN and the called subscriber is a prepaid subscriber located in the VPLMN.
  • 10 is the calling user MSa, located in HPLMN
  • 20 is the called user MSb
  • Figure 4 shows the specific signaling flow of the MSa calling MSb in Figure 3:
  • the MSC 13 of the HPLMN receives a call and analyzes the calling call.
  • the number gets the address number of the called mobile station (ie, the directory number MDN).
  • the following specific signaling flow is described as follows:
  • Step 1 The MSC 13 triggers a Mobile-Termination trigger and sends a LOCREQ (Location Request) message to the HLR11 of the HPLMN.
  • the message includes the following parameters: MSCID: The number of the MSC that triggered the service;
  • MSID the number of the user MSb
  • MDN User MSb's directory number
  • BILLID the billing ID of this call
  • DGTDIAL the dialed digit of the user MSa
  • TriggerType Trigger type, the value is 32 (Mobile__Termination).
  • Step 2 The HLR 11 returns a locreq (location request result) message to the MSC 13.
  • the locerq message includes a list of user data in addition to some mandatory parameters, includes a trigger address list (TRIGADDRLIST) in the user list, and configures Initial-Termination. Triggers such as (Initial - Termination), Location (Location), Called - Routing - Address - Available (called routing address available);
  • Step 3 The MSC 13 triggers the Initial- Termination trigger and sends an ANLYZD (analysis information) message to the SCP 12 of the HPLMN indicated in the TRIGADDRLIST parameter, wherein the set TRIGTYPE parameter indicates that the Initial-Termination trigger is triggered;
  • Step 4 The SCP 12 determines that the called prepaid subscriber MSb activates the PPC (Pre-Paid Charying) service and the account balance is sufficient, and applies for the opening of the international roaming service, and the SCP 12 sends the called prepaid subscriber MSb to the called
  • the home HLR11 sends an SMSREQ (SMS destination address request) message, and queries the address of the user to visit the MSC;
  • SMSREQ SMS destination address request
  • Step 5 HLR11 returns the smsreq (SMS address request result) message to SCP12, which contains SMSADDR (short message address) in the smsreq message.
  • SCP12 analyzes the SMSADDR (GT (global code) format) as a foreign MSC, and performs the processing of step 6; if the SCP analyzes that the SMSADDR is a domestic MSC, it performs the normal called procedure;
  • Step 6 The SCP 12 determines that the called prepaid user MSb is international roaming and the user balance is sufficient to maintain the call, and sends a LOCREQ (Location Request) message to the HLR11, where the message includes a TRIGTYPE parameter indicating that the Location is triggered. 34) Trigger, using the same BillingID;
  • Step 7 The HLR 11 determines that the call processing should continue, and sends a ROUTREQ (Routing Request) message to the Visited Location Register (VLR: Visited Location Register), and the VLR forwards the ROUTREQ message to the MSC 22;
  • ROUTREQ Recording Request
  • VLR Visited Location Register
  • Step 8 The MSC 22 assigns the TLDN (Temporary Local Subscriber Number) and returns the result to the VLR.
  • the VLR returns the result to the HLR 11 via the routreq (Routing Request Result) message.
  • Step 9 The HLR 11 sends a locreq (Location Request Result) message to SCP12, the command Connected to the user MSb;
  • Step 10 SCP12 saves the value of the TLDN.
  • DMH_SVCID Service Identity
  • Step 11 The MSC 13 sends an IAM (Initial Address) message according to the indication of the route prefix, and directly routes the call path to the G/SSP 14;
  • IAM Intelligent Address
  • Step 12 G/SSP14 is prefixed with the called number (that is, the foregoing route prefix), and the calling process is triggered by the access code;
  • Step 13 SCP12 delivers RRBE (Request to report BCSM (Basic Call State Model) configuration event);
  • Step 14 In the GSM network intelligent process, SCP12 queries the TLDN value saved in step 7, analyzes the location of the called party, and starts charging.
  • Step 15 SCP12 sends the TLDN number directly to G/SSP14, instructing G/SSP14 to route the call;
  • Step 16 The G/SSP 14 is connected according to the TLDN number, and sends an initial address message (IAM: Initial Address Message), which is connected to the GMSC/ISCl of the HPLMN country of the MSb.
  • IAM Initial Address Message
  • the GMSC/ISCl of the user MSb belonging to the HPLMN is connected according to the TLDN, and the IAM is sent.
  • the GMSC/ISC2 of the VPLMN country of the MSb is connected; the GMSC/ISC2 of the VPLMN country of the MSb connects the call to the MSC 22; the MSC 22 connects to the MSb to complete the call connection; Step 17: The user MSb connects the call, and the MSC 22 reports the response message ACM/ANM, And responded to G/SSP14 through GMSC/ISC21 and GMSC/ISC15;
  • Step 18 After the G/SSP 14 forwards the response message ACM/ANM to the MSC 13, the two parties start talking;
  • Step 19 After the two parties end the call, the user MSa hangs up, and the MSC 13 sends a REL (instruction release) message to the G/SSP 14 to notify the call release;
  • Step 20 G/SSP14 responds to the call end message RLC (release call);
  • Step 21 G/SSP14 reports the ACR (Request for Billing Report) message to SCP12, and SCP12 deducts the bill and issues the bill;
  • ACR Request for Billing Report
  • Step 22 G/SSP14 reports the on-hook event EDP (BCSM Event Report) to SCP12; Step 23: SCP12 responds to the end of the call;
  • EDP BCSM Event Report
  • Step 24 The G/SSP 14 notifies the MSC 22 of the on-hook message;
  • Step 25 The MSC 22 responds to the RLC message to the G/SSP 14.
  • the GSM CAP protocol and the G/SSP are introduced in the CDMA intelligent network system of the present invention, and the called flow of the prepaid user during international roaming is completely triggered to the HPLMN through the G/SSP.
  • the SCP is monitored and real-time billed by the HPCSN's SCP based on the balance of the prepaid subscribers, thereby enabling the prepaid subscribers to conduct international roaming services.
  • the originating call of the call is the MSCb of the VPLMN.
  • the MSC 22 of the VPLMN recognizes that the called number is the HPLMN number, and then transfers the call to the gateway office of the HPLMN to perform the CDMA network called service logic. Triggering, the signaling process is basically the same as when a HPLMN user dials a roaming to a VPLMN user.
  • FIG. 5 is a schematic diagram of a call of a CDMA intelligent network system according to an embodiment of the present invention when the calling user is a prepaid subscriber of international roaming.
  • 30 is the calling user MSc, located in the VPLMN, and is a prepaid user for international roaming
  • 40 is the called user MSd, located in VPLMN 0
  • FIG. 6 shows a specific signaling procedure when the MSc calls the MSd in FIG. 5:
  • the feature code FEATURE CODE
  • the feature code is dialed in the format: "*FC* called number"
  • the called number is composed of the international long distance prefix, the called country code and the called user number of the locating country.
  • the following specific signaling process is as follows:
  • Step 1 The MSC32 of the VPLMN sends a FEATREQ (Service Request) to the HLR11 of the HPLMN of the prepaid subscriber Msc in accordance with IS-41D (Interoperability between Cellular Telecommunications Systems);
  • FEATREQ Service Request
  • IS-41D Interoperability between Cellular Telecommunications Systems
  • Step 2 The HLR11 of the HPLMN forwards the FEATREQ to the SCP12 of the HPLMN according to the IS-771 (Wireless Intelligent Network).
  • IS-771 Wireless Intelligent Network
  • Step 3 After receiving the FEATREQ request, the HPLMN SCP12 normally responds to the featreq (service application result) to the HLR11 of the HPLMN;
  • Step 4 The HLR11 of the HPLMN is forwarded to the MSC32 of the VPLMN;
  • Step 5 The SCP 12 determines that the calling prepaid subscriber MSc activates the PPC service and the account balance is sufficient, and applies for the opening of the international roaming service, and the SCP 12 sends a LOCREQ (Location Request) message to the HLR 11.
  • SCP12 uses a self-generated BillingID (Billing ID);
  • Step 6 The HLR 11 sends a ROUTREQ (Routing Request) message to the VLR, and the VLR forwards the ROUTREQ message to the MSC32.
  • Step 7 The MSC32 assigns the TLDN (temporary local subscriber number) number and returns the result to the VLR, and the VLR returns the result to the HLR 11;
  • TLDN temporary local subscriber number
  • Step 8 HLR11 sends locreq to return a result message to SCP12;
  • Step 9 SCP12 analyzes the user balance enough to maintain the value of the TLDN after maintaining the call. And, the SCP 12 sends a short message to notify the user that the MSc waits for the call process to be established;
  • Step 10 SCP12 issues ICA (initial call attempt) to G/SSP14, where destinationRoutingAddress (destination routing address) fills in the access code plus the number of user MSc: XXX+called number, CallingPartyNumber (calling party number) is user MSd Number
  • R BE is for the MO-CCF1 (Calling Call Control Function Point) for status monitoring.
  • the virtual calling end is ICA, which is independent of whether the MSd user is a smart user.
  • Step 12 SCP12 issues CONTINUE
  • Step 13 The G/SSP 14 triggers the user MSc MT (called) intelligent process according to the access code before the called number, and sends an IDP (initial call detection point) to the SCP 12;
  • Step 14 SCP12 sends RRBE
  • Step 15 SCP12 delivers AC (application for billing), calculates the balance budget for the current user, and starts call monitoring.
  • Step 16 SCP12 issues CONNECT, which gives the previously saved TLDN to G/SSP14;
  • Step 17 G/SSP14 sends an IAM (Initial Address Message) to the International Gateway Office according to the TLDN, and the International Gateway Office sends the IAM to the MSC32 where the user MSc is located;
  • IAM Initial Address Message
  • Step 18 The MSC32 responds to the ACM/ANM message
  • Step 20 SCP12 delivers ProvideAvailDN (request to provide an available resolution, which can be taken Playback indication);
  • Step 21 SRP (Dedicated Resource Function) queries the circuit resource, assigns DN (distinguish name), and returns AvailDNProvided (available available resolution);
  • Step 22 SCP12 delivers ConnectOnePort (connection port one);
  • Step 23 The SRJF occupies the resource and returns to PortConnected. If there is a playback indication in the ProvideAvailDN above, then the user MSc is started to play;
  • Step 24 SCP12 sends ICA, where the calling number is the user MSc number, and destinationRoutingAddress is the number of the user MSd.
  • Step 26 SCP12 issues Continue, indicating connection
  • Step 27 G/SSP14 routes the call to the international gateway according to the number of the user MSd;
  • Step 28 The user responds with MSd, and MSC33 responds to ACM/ANM to G/SSP14;
  • Step 3 SRF queries the circuit resources of the user MSd, assigns a DN, and returns AvailDNProvided;
  • Step 32 SCP12 delivers BridgePorts (requesting bridge port);
  • Step 33 The SRF occupies the circuit resources of the user MSd, bridges the user MSc/MSd, returns to PortsBridged (the port is bridged), and the user MSc/MSd can talk normally.
  • Step 34 The user MSc releases the call, and the MSC32 sends the REL to the G/SSP 14;
  • Step 35 The MSc user of the G/SSP14 firstly controls the event on the MT (called) end, and reports the ACR (application charging report);
  • Step 36 G/SSP14 reports ERB (DP17) (BCSM Incident Report);
  • Step 37 SCP12 issues ReleaseCall (release call) to release the MT end of user MSc. At this time, SCP12 charges the user and deducts the fee;
  • Step 38 Next, the MO/CCF1 of G/SSP14 detects this event and reports it to ERB (DP9);
  • Step 39 SCP12 delivers ReleaseCall;
  • Step 40 In the design, MO-CCF1 and MO-CCF2 are called as the calling side, and the MO-CCF sends a release message to the MO-CCF2, and reports it to the ERB (DP9);
  • Step 41 SCP12 delivers ReleaseCall.
  • ICA-1 is used as the virtual calling side of MO-CCF1
  • ICA_2 is used as the virtual calling side of MO-CCF2.
  • MO-CCF1 and MO-CCF2 are called as the calling side.
  • the GSM CAP protocol and the G/SSP are introduced in the CDMA intelligent network system of the present invention, and the calling process of the prepaid subscriber international roaming is completely triggered to the HPLMN through the G/SSP.
  • the SCP is monitored and real-time billed by the HPCSN's SCP based on the balance of the prepaid subscribers, thereby enabling the prepaid subscribers to conduct international roaming services.
  • the present invention also provides a service control device for signaling interaction with an international roaming service switching device supporting a customized application part protocol of a mobile network enhanced logic of a global mobile communication system, thereby implementing control of an international roaming user's service.
  • FIG. 7 is a block diagram showing the principle of a preferred embodiment of the service control device of the present invention:
  • the service control device of the present invention comprises: a C network interface 71, a G network interface 72, an authentication unit 73, a service control unit 74, and a charging unit 75.
  • the C network interface 71 supports the mobile application part protocol of the CDMA wireless intelligent network, and interacts with the home location register of the international roaming user and the mobile switching center/service switching device through the protocol;
  • the G network interface 72 supports the global mobile communication system.
  • the mobile network enhances the customization of the logic application part of the protocol and communicates with the international roaming service switching device through the protocol.
  • the authentication unit 73 is configured to authenticate an international roaming user who subscribes to the prepaid service. After the authentication is passed, the service control unit 74 performs call flow control on the international roaming user according to the signaling messages that the C network interface 71 and the G network interface 72 interact with other devices.
  • the billing unit 75 is configured to monitor the call flow and charge the international roaming user according to the call flow.
  • a signaling mapping unit 76 may be further disposed between the service control unit 74 and the G network interface 72 to identify the G network.
  • the signaling message received by the interface 72, and the CDMA WIN MAP protocol that the service control device needs to send to the international roaming service switching device The message is mapped to a GSM CAP protocol message and transmitted to the G network interface 72.

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  • Computer Networks & Wireless Communication (AREA)
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Description

CDMA智能网系统及其实现国际漫游业务的方法、 设备 本申请要求于 2006 年 4 月 26 日提交中国专利局、 申请号为 200610075728.6, 发明名称为" CDMA智能网系统及其实现国际漫游业务 的方法 "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
本发明涉及一种码分多址 (CDMA)智能网系统, 特別是关于一种能实 现预付费用户国际漫游实时计费的 CDMA智能网系统及其实现国际漫游 业务的方法、 设备。
背景技术
随着全球经济一体化的不断发展,国与国之间的经济交流和人员往来 日益频繁, 因而 CDMA作为新一代的移动通讯系统, 其用户的国际漫游 需求也就成为普遍需求。
目前世界上大部分移动通讯系统的运营商之间都签订了 CDMA漫游 的国际间的信令连接以及运营商之间的结算协议,对后付费用户的国际漫 游能得到很好的解决。但是对于预付费用户, 因为其账号信息存储在本地 公用陆地移动网(HPLMN: Home Public Land Mobile Network)的归属业务 控制点(SCP: Service Control Point)上, 所以对预付费用户的收费都在 HPLMN上进行。 也就是说, 预付费用户每次作为主叫或者被叫, 其都要 由归属 SCP进行鉴权控制, 决定是否接通呼叫以及接通的时间, 预付费 用户账户中余额必需足够, 才能进行呼叫。 并且, 在预付费用户通话过程 中, HPLMN会实时地对其进行呼叫监视并计费。 所以, 由于预付费业务 上述的特性, 其需要对网络有更高的要求, 同时要求呼叫控制和计费规则 由 HPLMN确定,因而目前大多数运营商还无法提供预付费用户的国际漫 游业务。
而在允许预付费用户国际漫游的情况下, 对于现有技术的 CDMA智 能网系统的协议 出来说,其不能完善解决预付费用户的国际漫游实时计 费功能, 主要存在如下问题:
1、 对于预付费用户国际漫游到 VPLMN后作为被叫: 如果拜访公用陆地移动网(VPLMN: Visited Public Land Mobile Network)的移动交换中心 /业务交换点(MSC/SSP: Mobile Switching Center/Service Switching Point)有无线智能网(WIN: Wireless Intelligent Network)能力, 则 HPLMN 的归属位置寄存器(HLR: Home Location Register)会在预付费用户终端进行位置登记时, 将该预付费用户的触发器 (Trigger)配置下到该 VPLMN的 MSC/SSP上。 但是由于两国 /地区的运营 商一般缺乏智能网侧的信令寻址配置的配合, VPLMN 的 MSC/SSP 和 HPLMN的 SCP无法进行信令交互, 因此, 当预付费用户国际漫游作被叫 时会造成 HPLMN的 SCP无法实时计费。
例如, 当主叫是 HPLMN用户时, 因为智能网用户的被叫流程是在始 呼局触发的,也就是在 HPLMN的 MSC/SSP上触发,但是由于 CDMA协 议的特殊性要求, TANSWER (被叫应答)、 TDISCONNECT (被叫挂机) 信令需要由 VPLMN的 MSC/SSP上报, 此时由于网络的原因有可能报不 上来, 因此造成 HPLMN的 SCP无法对被叫准确计费。
如果主叫用户也在 VPLMN时, 呼叫的始呼局是 VPLMN的 MSC, 此时 VPLMN的 MSC识别被叫号码为 HPLMN号码后, 将呼叫转接到 HPLMN 的关口局进行 CDMA 网被叫业务逻辑的触发, 信令流程与 HPLMN 用户拨打正漫游到 VPLMN用户的情况基本相同, 因此造成 HPLMN的 SCP无法对被叫准确计费的问题也同样存在。
2、 对于预付费用户国际漫游到 VPLMN后发起呼叫:
如果 VPLMN的 MSC/SSP有 WIN能力, 则 HPLMN的 HLR会在预 付费用户终端进行位置登记时, 将该用户的 Trigger配置下到该 VPLMN 的 MSC/SSP上。 但是由于两国运营商一般缺乏智能网侧的信令寻址配置 的配合, VPLMN的 MSC/SSP和 HPLMN的 SCP无法进行信令交互, 因 此当预付费用户发起呼叫时, VPLMN的 MSC/SSP无法对预付费用户进 行鉴权, 造成预付费用户无法发起呼叫。
如果 VPLMN的 MSC/SSP没有 WIN能力, 则 VPLMN的 MSC/SSP 不会和 HPLMN 的 SCP 交互信令, 预付费用户国际漫游后就会不受 HPLMN的 SCP的控制,因此造成预付费用户和后付费用户一样可以随意 发起呼叫。
综上所述, 现有技术的 CDMA智能网无法完善地实现对预付费用户 国际漫游后的呼叫进行实时控制和计费,因此无法开展预付费用户的国际 漫游业务。
发明内容
本发明实施例提供一种 CDMA智能网系统及该 CDMA智能网系统实 现国际漫游业务的方法。
本发明实施例提供如下技术方案:
一种 CDMA智能网系统, 包括: 归属网络的业务控制设备、 关口局 或国际关口局, 拜访网络的关口局或国际关口局,还包括国际漫游业务交 换设备, 其中所述业务控制设备与业务交换设备之间形成通讯, 所述业务 交换设备、归属网络的关口局或国际关口局及拜访网络的关口局或国际关 口局之间形成话路。
一种实现国际漫游业务的方法, 包括以下步骤:
在归属网络的移动交换中心 /业务交换设备上触发对国际漫游的预付 费用户的呼叫后, 如果被叫用户账户余额足够, 则由拜访网络的移动交换 中心 /业务交换设备为所述被叫分配漫游号码并将其返回至归属网络的业 务控制设备;
归属网络的业务控制设备指示归属网络的移动交换中心 /业务交换设 备将呼叫话路路由到国际漫游业务交换设备;
归属网络的业务控制设备下发漫游号码至国际漫游业务交换设备并 开始进行呼叫监控;
国际漫游业务交换设备根据所述漫游号码进行呼叫路由,连接拜访网 絡的移动交换中心 /业务交换设备, 实现通话。
一种实现国际漫游业务的方法, 包括以下步骤:
归属网络的业务控制设备获知国际漫游的预付费用户发起呼叫请求 后, 当该主叫用户账户余额足够, 则从拜访网络的移动交换中心 /业务交 换设备获取为所述主叫用户分配漫游号码;
所述业务控制设备指示国际漫游业务交换设备建立主叫话路,并将所 述漫游号码发送给国际漫游业务交换设备并进行呼叫监控; 业务控制设备指示国际漫游业务交换设备建立被叫话路, 实现通话。 一种国际漫游业务交换设备,与所述国际漫游用户的归属网络的业务 控制设备进行消息交互,建立 CDMA智能网中国际漫游用户的业务路由, 包括:
信令交互单元, 与所述业务控制设备进行信令交互, 获取所述业务控 制设备下发的国际漫游用户的漫游号码;
话路建立单元, 用于根据所述漫游号码进行呼叫路由, 建立主叫被叫 桥接话路。
一种业务控制设备,与支持全球移动通信系统的移动网增强逻辑的客 户化应用部分协议的国际漫游业务交换设备进行信令交互,对国际漫游用 户的业务进行控制, 所述业务控制设备包括:
C网接口, 支持 CDMA无线智能网的移动应用部分协议, 并通过该 协议与国际漫游用户的归属位置寄存器和移动交换中心 /业务交换设备交 互信令;
G网接口, 支持全球移动通信系统的移动网增强逻辑的客户化应用部 分协议, 并通过该协议与所述国际漫游业务交换设备进行通讯。
由以上技术方案可以看出, 本发明实施例在 CDMA智能网系统及该 CDMA智能网系统实现国际漫游业务的方法中引入国际漫游业务交换设 备,通过国际漫游业务交换设备将预付费用户国际漫游时的主叫流程和被 叫流程完整触发到了归属网络的业务控制设备,由归属网络的业务控制设 备根据预付费用户的余额情况进行呼叫监控和实时计费,从而实现支持预 付费用户开展国际漫游业务。
附图说明 图 1是本发明实施例 CDMA智能网系统的组网示意图;
图 2是本发明实施例国际漫游业务交换设备的原理框图;
图 3是在图 1所示组网方式中主叫用户位于 HPLMN, 被叫用户为位 于 VPLMN的预付费用户时的呼叫示意图;
图 4是在图 1所示组网方式中主叫用户位于 HPLMN, 被叫用户为位 于 VPLMN的预付费用户时, 本发明 CDMA智能网系统的具体信令流程 示意图;
图 5是当主叫用户为国际漫游的预付费用户时, 本发明 CDMA智能 网系统的呼叫示意图;
图 6是当主叫用户为国际漫游的预付费用户时, 本发明 CDMA智能 网系统的具体信令流程示意图;
图 7是本发明业务控制设备的优选实施例的原理框图。
具体实施方式
以下结合附图和具体实施方式, 进一步说明本发明。
请参考图 1 , 是本发明实施例 CDMA智能网系统的组网示意图。 该 CDMA智能网系统包括本地公用陆地移动网 (HPLMN)10及拜访公用陆地 移动网 (VPLMN)20, HPLMN10包括归属位置寄存器 (HLR)11、业务控制 设备 (SCP)12、 移动交换中心 /业务交换设备 (MSC/SSP)13、 全球移动通信 系统(GSM: Global System for Mobile Communication)的业务交换设备 (G/SSP)14、 CDMA 的关口局或国际关口局(GMSC/ISC)15 , VPLMN20 包括 CDMA的关口局或国际关口局 (GMSC/ISC ) 21及移动交换中心 /业 务交换设备(MSC/SSP ) 22。 其中实线表示用户的话路, 双点画线表示码 分多址无线智能网的移动应用部分 (CDMA WIN MAP)协议, 点画线表示 全球移动通信系统的移动网增强逻辑的客户化应用部分 (GSM CAP)协议。
该 CDMA智能网系统中, HPLMN的 MSC/SSP13、 HLR SCP之间 通过 CDMA WIN MAP协议传送信令, HPLMN的 SCP12与 G/SSP14之 间则通过 GSM CAP协议通讯, 而 MSC/SSP13、 G/SSP14、 GMSC/ISC15、 GMSC/ISC21及 MSC/SSP22之间则形成话路。
由于 GSM网的信令流程比较完善, 因此在本发明 CDMA智能网系 统中引入 GSM CAP协议及 G/SSP , 以进行国际漫游呼叫流程的触发、 控 制和实时计费, 使运营商可以提供预付费用户国际漫游业务。
以下分别以两种不同呼叫情况来说明本发明实施例 CDMA智能网系 统实现国际漫游业务的方法的具体信令流程。其中第一种呼叫情况是主叫 用户位于 HPLMN, 被叫用户为位于 VPLMN的预付费用户。 第二种呼叫 情况是主叫用户为位于 VPLMN的预付费用户。
为了在 CDMA网络中实现国际漫游业务, 也就是说使归属网络中的 SCP能够对国际漫游用户进行准确计费,本发明提供的国际漫游业务交换 设备的一个优选实施例如图 2所示:
在该实施例中,国际漫游业务交换设备包括信令交互单元 201和话路 建立单元 202。 其中, 信令交互单元 201与业务控制设备进行信令交互, 获取业务控制设备下发的国际漫游用户的漫游号码;话路建立单元 202用 于建立主叫被叫话路, 并桥接主叫被叫话路。
参照图 3, 图 3是当主叫用户位于 HPLMN,被叫用户为位于 VPLMN 的预付费用户时,本发明实施例 CDMA智能网系统的呼叫示意图。其中, 10为主叫用户 MSa, 位于 HPLMN, 20为被叫用户 MSb, 位于 VPLMN, 并且为 HPLMN的预付费用户。
图 4示出了图 3中 MSa呼叫 MSb的具体信令流程: 当位于 HPLMN 的用户 MSa向位于 VPLMN的预付费用户 MSb发出呼叫时,此时 HPLMN 的 MSC13会收到一次呼叫, 分析主叫拨打号码得到被叫移动台的地址数 字(即号码簿号码 MDN), 接下来的具体信令流程说明如下:
步骤 1: MSC13触发 Mobile— Termination (移动 _终止)触发器, 并向 HPLMN的 HLR11发送 LOCREQ (位置申请)消息, 在该消息中包括以 下参数: MSCID: 触发业务的 MSC的编号;
MSID: 用户 MSb的编号;
MDN: 用户 MSb的号码簿号码;
BILLID: 本次呼叫的计费 ID;
DGTDIAL: 用户 MSa的拨号数字;
TriggerType: 触发类型, 值是 32(Mobile__Termination) 。
步骤 2: HLR11 向 MSC13返回 locreq (位置申请结果) 消息, 其中 locreq消息中除一些必选参数外, 还包括用户数据清单, 在该用户清单中 包括触发地址清单 (TRIGADDRLIST), 并配置 Initial—Termination (初始— 终止)、 Location (位置)、 Called— Routing— Address— Available (被叫路由地 址可得)等触发器; 步骤 3: MSC13触发 Initial— Termination触发器,并发送 ANLYZD(分 析信息)消息给在 TRIGADDRLIST参数中指明的 HPLMN的 SCP12, 其 中设置的 TRIGTYPE (触发器类型)参数指明触发了 Initial—Termination 触发器;
步骤 4: SCP12确定被叫的预付费用户 MSb激活了 PPC ( Pre-Paid Charying, 预付费)业务且账户余额足够, 并且申请开通了国际漫游业务, 则 SCP12向该被叫的预付费用户 MSb的归属 HLR11发送 SMSREQ (短 信目的地址申请) 消息, 查询用户拜访 MSC的地址;
步骤 5: HLR11返回 smsreq (短信地址申请结果) 消息给 SCP12, 在 smsreq 消息中包含 SMSADDR (短消息地址)。 SCP12 分析该 SMSADDR(GT (全局码)格式)为国外的 MSC, 则执行步驟 6 的处理; 如果 SCP分析该 SMSADDR是本国的 MSC,则按正常的被叫流程进行处 ¾;
步骤 6: SCP12判断该被叫的预付费用户 MSb为国际漫游并且用户余 额足够维持本呼叫后, 向 HLR11发送 LOCREQ (位置申请) 消息, 在该 消息中包含 TRIGTYPE参数, 该参数指明触发了 Location(34)触发器,使 用同一个 BillingID;
步骤 7: HLR11确定呼叫处理应该继续, 并发送 ROUTREQ (路由申 请) 消息给拜访位置寄存器 (VLR: Visited Location Register), VLR前转 ROUTREQ消息给 MSC22;
步骤 8: MSC22分配 TLDN (临时本地用户号码) 并把结果返回给 VLR, VLR把结果通过 routreq (路由申请结果) 消息返回给 HLR11; 步骤 9: HLR11发送 locreq (位置申请结果) 消息给 SCP12, 命令接 续到用户 MSb;
步骤 10: SCP12保存 TLDN的值。 发送 anlyzd (分析信息结果)消息 给 MSC13 , 其中包括 DMH_SVCID (业务标识)参数, 该参数指明为执 行 PPC业务, TerminationList中的 PSTNTermination为被叫号码前加上路 由前綴为: XXX+被叫号码;
此时该业务逻辑还不能结束, 需要等待一段时间, 以回应 A LYZD(39), 保证呼叫接续。 也需要等待 TANSWER (被叫应答)或有 条件前转流程一段时间, 以支持有条件前转流程。
步骤 11: MSC13根据路由前缀的指示, 下发 IAM (初始地址)消息, 将呼叫话路直接路由到 G/SSP14;
步骤 12: G/SSP14 居被叫号码前缀(即前述的路由前缀), 按接入 码触发主叫流程;
步驟 13: SCP12下发 RRBE (请求报告 BCSM (基本呼叫状态模型) 配置事件);
步骤 14: SCP12在 GSM网智能流程中, 查询第 7步中保存的 TLDN 值, 分析被叫的位置, 开始计费。
步骤 15: SCP12将 TLDN号码直接下发给 G/SSP14, 指示 G/SSP14 进行呼叫路由;
步骤 16: G/SSP14根据 TLDN号码进行接续,发送初始地址消息 (IAM: Initial Address Message), 连接 MSb的 HPLMN国家的 GMSC/ISCl; 用户 MSb归属 HPLMN的 GMSC/ISCl根据 TLDN进行接续, 发送 IAM, 连 接 MSb 的 VPLMN 国家的 GMSC/ISC2 ; MSb 的 VPLMN 国家的 GMSC/ISC2将呼叫接续到 MSC22; MSC22连接 MSb, 完成呼叫接续; 步驟 17: 用户 MSb接通电话, 则 MSC22上报应答消息 ACM/ANM, 并通过 GMSC/ISC21和 GMSC/ISC15回应到 G/SSP14;
步骤 18: G/SSP14将应答消息 ACM/ANM转发到 MSC13后, 双方 开始通话;
步骤 19: 双方通话结束, 用户 MSa挂机, MSC13向 G/SSP14发送 REL (指示释放) 消息, 通知呼叫释放;
步骤 20: G/SSP14回应呼叫结束消息 RLC (释放呼叫);
步驟 21: G/SSP14上报 ACR (申请计费报告)消息给 SCP12, SCP12 进行扣费并出话单;
步骤 22: G/SSP14上报挂机事件 EDP ( BCSM事件报告 )给 SCP12; 步骤 23: SCP12回应呼叫结束;
步骤 24: G/SSP14通知到 MSC22挂机消息; 步驟 25: MSC22向 G/SSP14回应 RLC消息。
由上述的具体的呼叫过程及信令流程可以看出, 本发明 CDMA智能 网系统中引入 GSM CAP协议及 G/SSP,通过 G/SSP将预付费用户国际漫 游时的被叫流程完整触发到了 HPLMN的 SCP, 由 HPLMN的 SCP根据 预付费用户的余额情况进行呼叫监控和实时计费,从而实现了支持预付费 用户开展国际漫游业务。
当主叫用户也在 VPLMN时, 呼叫的始呼局是 VPLMN的 MSCb, 此 时 VPLMN的 MSC22识别被叫号码为 HPLMN号码后, 将呼叫转接到 HPLMN 的关口局进行 CDMA 网被叫业务逻辑的触发, 信令流程与 HPLMN用户拨打正漫游到 VPLMN用户的情况基本相同。
参考图 5, 图 5是当主叫用户为国际漫游的预付费用户时, 本发明实 施例 CDMA智能网系统的呼叫示意图。 其中, 30为主叫用户 MSc, 位于 VPLMN, 并且为国际漫游的预付费用户, 40 为被叫用户 MSd, 位于 VPLMN0
图 6示出了图 5中 MSc呼叫 MSd时的具体信令流程: 当国际漫游的 预付费用户 MSc希望发起呼叫时, 拨打特征码 (FEATURE CODE), 格式 为: "*FC*被叫号码", 其中被叫号码由归属国的国际长途前缀、被叫国家 码和被叫用户号码组成, 接下来的具体信令流程说明如下:
步骤 1: VPLMN的 MSC32按照 IS-41D (蜂窝无线电讯系统间互操作 ) 的规定, 发送 FEATREQ (业务申请)给预付费用户 Msc的 HPLMN的 HLR11;
步骤 2: HPLMN的 HLR11按照 IS-771 (无线智能网) 的规定, 转发 FEATREQ给 HPLMN的 SCP12;
步骤 3: HPLMN的 SCP12在收到 FEATREQ请求后,正常回应 featreq (业务申请结果)给 HPLMN的 HLR11;
步骤 4: HPLMN的 HLR11再转发给 VPLMN的 MSC32;
步骤 5: SCP12确定主叫的预付费用户 MSc激活了 PPC业务且账户余 额足够,并且申请开通了国际漫游业务,则 SCP12向 HLR11发送 LOCREQ (位置申请) 消息。 SCP12使用一个自己生成的 BillingID (计费 ID ); 步驟 6: HLR11发送 ROUTREQ (路由申请)消息给 VLR, VLR前转 ROUTREQ消息给 MSC32;
步驟 7: MSC32分配 TLDN (临时本地用户号码)号码并把结果返回 给 VLR, VLR把结果返回给 HLR11;
步骤 8: HLR11发送 locreq返回结果消息给 SCP12;
步驟 9: SCP12分析用户余额足够维持本呼叫后, 保存 TLDN的值。 并且, SCP12发送短信通知用户 MSc等待呼叫过程建立;
步骤 10: SCP12 下发 ICA (初始呼叫尝试) 给 G/SSP14 , 其中 destinationRoutingAddress (目的路由地址) 填写接入码加用户 MSc的号 码: XXX+被叫号码, CallingPartyNumber (主叫方号码)为用户 MSd的 号码;
步骤 11 : SCP12 下发 RJRBE (请求报告 BCSM 事件), 监控 DP7_R(LegID=2) (主叫应答事件)。 这里的 R BE是针对 MO— CCF1 (主 叫呼叫控制功能点)进行状态监控, 此时虛拟主叫端是 ICA, 与 MSd用 户是不是智能用户无关;
步骤 12: SCP12下发 CONTINUE;
步骤 13: G/SSP14根据被叫号码前的接入码触发用户 MSc MT(被叫) 端智能过程, 向 SCP12发 IDP (初始呼叫检测点);
步驟 14: SCP12下发 RRBE;
步骤 15: SCP12下发 AC (申请计费),对当前用户进行余额预算并开 始进行呼叫监控;
步骤 16: SCP12下发 CONNECT (连接), 其中将前面保存的 TLDN 下给 G/SSP14;
步驟 17: G/SSP14根据 TLDN向国际关口局发 IAM(初始地址消息), 国际关口局再发 IAM到用户 MSc所在的 MSC32;
步骤 18: MSC32回应 ACM/ANM消息;
步驟 19: G/SSP14收到 ANM消息 (用户 MSc应答)后, 向 SCP12上报 DP7(LegID=2);
步骤 20: SCP12下发 ProvideAvailDN (请求提供可用分辩名, 可以带 放音指示);
步骤 21 : SRP(专用资源功能)查询电路资源,分配 DN(distinguish name) (分辩名), 返回 AvailDNProvided (已提供的可用分辩名);
步骤 22: SCP12下发 ConnectOnePort (连接端口一);
步驟 23: SRJF占用该资源, 返回 PortConnected (端口已连接)。 如果 上面的 ProvideAvailDN中带放音指示, 此时开始对用户 MSc放音;
步骤 24: SCP12 下发 ICA , 其中主叫号码是用户 MSc 号码, destinationRoutingAddress是用户 MSd的号码;
步骤 25: SCP12同时下发 RRBE监控 EDP7(LegID=2) (建立用户 MSc 的 MO (主叫)状态监控);
步驟 26: SCP12下发 Continue, 指示接续;
步骤 27: G/SSP14根据用户 MSd的号码将呼叫路由到国际关口局; 步骤 28: 用户 MSd应答, MSC33回应 ACM/ANM到 G/SSP14;
步骤 29: G/SSP14向 SCP12上报 ERB(DP=7,LegID=2) (MO_CCF2); 步骤 30: SCP12下发 ProvideAvailDN;
步尊 31 : SRF 查询到用户 MSd 的电路资源, 分配 DN, 返回 AvailDNProvided;
步骤 32: SCP12下发 BridgePorts (请求桥接端口);
步骤 33: SRF占用到用户 MSd的电路资源, 并将用户 MSc/MSd桥 接, 返回 PortsBridged (端口已桥接), 用户 MSc/MSd可以正常通话。
步骤 34: 用户 MSc释放呼叫, MSC32发送 REL到 G/SSP14;
步骤 35: G/SSP14的 MSc用户在 MT (被叫)端首先盟控到此事件, 上报 ACR (申请计费报告 );
步骤 36: G/SSP14上报 ERB(DP17) ( BCSM事件报告 );
步骤 37: SCP12下发 ReleaseCall (释放呼叫)释放用户 MSc的 MT 端。 此时, SCP12对该用户进行计费并扣费;
步骤 38: 接下来是 G/SSP14 的 MO— CCF1 检测到此事件, 上报 ERB(DP9);
步骤 39: SCP12下发 ReleaseCall; 步骤 40:设计中 MO-CCF1和 MO-CCF2互为主叫侧, MO-CCF将释 放消息发送到 MO-CCF2 , 上报 ERB(DP9);
步骤 41: SCP12下发 ReleaseCall。
上述流程中,其中 ICA— 1作为 MO-CCF1虛拟的主叫侧, ICA_2作为 MO-CCF2虚拟的主叫侧, 具体实现中 MO-CCF1和 MO-CCF2互为主叫 侧。
由上述的具体的呼叫过程及信令流程可以看出, 本发明 CDMA智能 网系统中引入 GSM CAP协议及 G/SSP ,通过 G/SSP将预付费用户国际漫 游时的主叫流程完整触发到了 HPLMN的 SCP, 由 HPLMN的 SCP根据 预付费用户的余额情况进行呼叫监控和实时计费,从而实现了支持预付费 用户开展国际漫游业务。
本发明还提供了一种业务控制设备,与支持全球移动通信系统的移动 网增强逻辑的客户化应用部分协议的国际漫游业务交换设备进行信令交 互, 从而实现对国际漫游用户的业务的控制。
图 7是本发明业务控制设备的一个优选实施例的原理框图:
在该实施例中, 本发明业务控制设备包括: C 网接口 71、 G 网接口 72、 鉴权单元 73、 业务控制单元 74和计费单元 75。 其中, C网接口 71 支持 CDMA无线智能网的移动应用部分协议, 并通过该协议与国际漫游 用户的归属位置寄存器和移动交换中心 /业务交换设备交互信令; G 网接 口 72支持全球移动通信系统的移动网增强逻辑的客户化应用部分协议, 并通过该协议与所述国际漫游业务交换设备进行通讯。
鉴权单元 73用于对签约预付费业务的国际漫游用户进行鉴权。 鉴权 通过后,业务控制单元 74根据 C网接口 71和 G网接口 72与其他设备交 互的信令消息, 对国际漫游用户进行呼叫流程控制。 计费单元 75用于监 控所述呼叫流程, 并根据所述呼叫流程对所述国际漫游用户进行计费。
为了使业务应用能够正确识别支持不同协议的接口与其他设备交互 的消息,对业务进行正确控制,还可以在业务控制单元 74和 G网接口 72 之间设置信令映射单元 76 , 以识别 G网接口 72接收的信令消息, 并将该 业务控制设备需要发送给国际漫游业务交换设备的 CDMA WIN MAP协 议消息映射为 GSM CAP协议消息, 传送给 G网接口 72。
以上对本发明实施例所提供的一种 CDMA智能网系统及其实现国际 漫游业务的方法、国际漫游业务交换设备、业务控制设备作了详细的描述。 例的说明只是用于帮助理解本发明的方法及其核心思想; 同时,对于本领 域的一般技术依据本发明的思想,在特定实施方式及应用范围上均会有改 变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1. 一种 CDMA智能网系统, 其包括: 归属网络的业务控制设备、 关 口局或国际关口局, 拜访网络的关口局或国际关口局, 其特征在于: 还包 括国际漫游业务交换设备,其中所述业务控制设备与国际漫游业务交换设 备之间形成通讯, 所述业务交换设备、 归属网絡的关口局或国际关口局及 拜访网络的关口局或国际关口局之间形成话路。
2. 如权利要求 1所述的 CDMA智能网系统, 其特征在于: 所述业务 控制设备与所述国际漫游业务交换设备之间通过全球移动通信系统的移 动网增强逻辑的客户化应用部分协议通讯。
3. 如权利要求 1所述的 CDMA智能网系统, 其特征在于: 还包括归 属网络的移动交换中心 /业务交换设备、 归属位置寄存器, 所述归属网络 的移动交换中心 /业务交换设备、 归属位置寄存器及归属网络的业务控制 设备之间通过 CDMA无线智能网的移动应用部分协议传送信令。
4. 如权利要求 3所述的 CDMA智能网系统, 其特征在于: 还包括拜 访网络的移动交换中心 /业务交换设备, 所述归属网络的移动交换中心 /业 务交换设备、 拜访网络的移动交换中心 /业务交换设备分别接入所述全球 移动通信系统的业务交换设备、归属网络的关口局或国际关口局及拜访网 络的关口局或国际关口局之间形成的话路。
5. 如权利要求 4所述的 CDMA智能网系统, 其特征在于: 所述拜访 网络的移动交换中心 /业务交换设备与国际漫游中的预付费用户连接, 所 述归属网絡的移动交换中心 /业务交换设备与另一用户连接, 使所述用户 之间形成会话。
6. 一种实现国际漫游业务的方法, 其特征在于, 所述方法包括以下 步骤:
在归属网络的移动交换中心 /业务交换设备上触发对国际漫游的预付 费用户的呼叫后, 如果被叫用户账户余额足够, 则由拜访网絡的移动交换 中心 /业务交换设备为所述被叫分配漫游号码并将其返回至归属网络的业 务控制设备;
归属网络的业务控制设备指示归属网络的移动交换中心 /业务交换设 备将呼叫话路路由到国际漫游业务交换设备;
归属网络的业务控制设备下发漫游号码至国际漫游业务交换设备并 开始进行呼叫监控;
国际漫游业务交换设备根据所述漫游号码进行呼叫路由,连接拜访网 络的移动交换中心 /业务交换设备, 实现通话。
7. 如权利要求 6所述的实现国际漫游业务的方法, 其特征在于, 所 述方法还包括:
归属位置寄存器根据业务控制设备的请求,通知所述拜访网络的移动 交换中心 /业务交换设备为所述被叫用户分配漫游号码。
8. 如权利要求 7所述的实现国际漫游业务的方法, 其特征在于, 所 述由拜访网络的移动交换中心 /业务交换设备为所述被叫分配漫游号码并 将其返回至归属网络的业务控制设备的步骤包括:
拜访网络的移动交换中心 /业务交换设备将分配的漫游号码返回给归 属位置寄存器;
归属位置寄存器将所述漫游号码发送给所述业务控制设备。
9. 如权利要求 6所述的实现国际漫游业务的方法, 其特征在于, 所 述业务控制设备进行呼叫监控的步驟包括:
国际漫游业务交换设备触发预付费被叫用户智能流程;
所述业务控制设备在所述预付费主叫用户智能流程中 ,根据所述漫游 号码分析被叫的位置, 开始计费。
10. 如权利要求 6所述的 CDMA智能网系统实现国际漫游业务的方 法, 其特征在于, 所述方法还包括步驟:
通话结束, 国际漫游业务交换设备上报计费报告给业务控制设备, 并 由业务控制设备进行扣费及出话单。
11. 一种实现国际漫游业务的方法, 其特征在于: 所述方法包括以下 步骤:
归属网络的业务控制设备获知国际漫游的预付费用户发起呼叫请求 后, 当该主叫用户账户余额足够, 则从拜访网络的移动交换中心 /业务交 换设备获取为所述主叫用户分配漫游号码; 所述业务控制设备指示国际漫游业务交换设备建立主叫话路,并将所 述漫游号码发送给国际漫游业务交换设备并进行呼叫监控;
业务控制设备指示国际漫游业务交换设备建立被叫话路, 实现通话。
12. 如权利要求 11所述的实现国际漫游业务的方法,其特征在于,所 述方法还包括:
归属位置寄存器根据业务控制设备的请求,通知所述拜访网络的移动 交换中心 /业务交换设备为所述主叫用户分配漫游号码。
13. 如权利要求 12所述的实现国际漫游业务的方法, 其特征在于, 所述从拜访网络的移动交换中心 /业务交换设备获取为所述主叫用户分配 漫游号码的步骤包括:
拜访网络的移动交换中心 /业务交换设备将分配的漫游号码发送给归 属位置寄存器;
归属位置寄存器将所述漫游号码发送给业务控制设备。
14. 如权利要求 11所述的实现国际漫游业务的方法,其特征在于,所 述业务控制设备进行呼叫监控的步骤包括:
国际漫游业务交换设备触发预付费主叫用户智能流程;
所述业务控制设备在所述预付费主叫用户智能流程中,根据所述漫游 号码分析主叫的位置, 开始计费。
15. 如权利要求 11所述的实现国际漫游业务的方法,其特征在于: 所 述国际漫游业务交换设备建立主叫话路的步驟包括:
国际漫游业务交换设备收到业务控制设备下发的拉起呼叫消息后,根 据所迷漫游号码向国际关口局发初始地址消息,国际关口局再发初始地址 消息到拜访网络的移动交换中心 /业务交换设备, 所述拜访网络的移动交 换中心 /业务交换设备返回结果;
国际漫游业务交换设备收到结果消息后,向业务控制设备上报建立话 路消息, 并开始对所述预付费用户放音。
16. 如权利要求 11或 15所述的实现国际漫游业务的方法, 其特征在 于, 所述国际漫游业务交换设备建立被叫话路的步驟包括:
国际漫游业务交换设备收到业务控制设备下发的拉起呼叫消息后,将 呼叫路由到被叫所在交换局;
国际漫游业务交换设备收到被叫应答的结果消息后,向所述业务控制 设备上艮建立话路消息。
17. 如权利要求 11所述的实现国际漫游业务的方法,其特征在于,所 述方法还包括步骤:
通话结束, 国际漫游业务交换设备上报计费^ =艮告给业务控制设备, 并由业务控制设备进行扣费及出话单。
18.一种国际漫游业务交换设备, 其特征在于, 与国际漫游用户的归 属网络的业务控制设备进行信令交互, 建立 CDMA智能网中国际漫游用 户的业务路由, 所述国际漫游业务交换设备包括:
信令交互单元, 与所述业务控制设备进行信令交互, 获取所述业务控 制设备下发的国际漫游用户的漫游号码;
话路建立单元, 用于根据所述漫游号码进行呼叫路由, 建立主叫被叫 桥接话路。
19. 一种业务控制设备, 其特征在于, 与支持全球移动通信系统的移 动网增强逻辑的客户化应用部分协议的国际漫游业务交换设备进行信令 交互, 对国际漫游用户的业务进行控制, 所述业务控制设备包括:
C网接口, 支持 CDMA无线智能网的移动应用部分协议, 并通过该 协议与国际漫游用户的归属位置寄存器和移动交换中心 /业务交换设备交 互信令;
G网接口,支持全球移动通信系统的移动网增强逻辑的客户化应用部 分协议, 并通过该协议与所述国际漫游业务交换设备进行通讯。
20. 如权利要求 19所述的业务控制设备, 其特征在于, 还包括: 信令映射单元,用于识别所述 G网接口接收的信令消息,并将所述业 务控制设备需要发送给所述国际漫游业务交换设备的 CDMA无线智能网 的移动应用部分协议消息映射为全球移动通信系统的移动网增强逻辑的 客户化应用部分协议消息, 传送给 G网接口。
21. 如权利要求 19或 20所述的业务控制设备,其特征在于,还包括: 鉴权单元, 用于对签约预付费业务的国际漫游用户进行鉴权; 业务控制单元, 当所述鉴权单元对所述国际漫游用户鉴权通过后, 根 据所述 C网接口和所述 G网接口的信令消息, 对国际漫游用户进行呼叫 流程控制;
计费单元, 用于监控所述呼叫流程, 并根据所述呼叫流程对所述国际 漫游用户进行计费。
PCT/CN2007/000343 2006-04-26 2007-01-31 système de réseau intelligent CDMA et son procédé, dispositif pour réaliser un service d'itinérance internationale WO2007121646A1 (fr)

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