CN100426824C - Method of carrying out intelligent service of personal portable telephone system - Google Patents

Abstract

The present invention discloses a method for realizing intelligent services of a personal portable telephone system, which belongs to the field of communication. When a user is a calling party, a service switching point for accessing a PHS system triggers a calling intelligent service to a local SCP of an attaching PHS system according to contract signing information of the calling intelligent service and processes a call under the control of the SCP; when the user is a called part, the call is continued and connected with the attaching PHS system, a service switching point of the attaching PHS system triggers a called intelligent service to the local SCP of the attaching PHS system according to contract signing information of the called intelligent service and processes a call under the control of the SCP. The present invention overcomes the disadvantages of difficult intelligent service realization, inconvenient charging, etc. existing in the prior art. The present invention achieves the purposes that a PHS network triggers the calling and the called intelligent services according to the user's contract signing information, and an access PHS system can automatically trigger the intelligent services to a user's attaching intelligent network when the user roams in different PHS systems.

Description

Method for Realizing Intelligent Service of Personal Portable Telephone System

technical field

The invention relates to the communication field, in particular to a method for realizing interaction between switching equipment and intelligent network equipment in a personal handyphone system (Personal Handyphone System, PHS).

Background technique

Public Switched Telephone Network (PSTN, Public Switched Telephone Network) provides fixed telephone users with various telecommunication services. User terminals are connected to switches through subscriber lines. In this system, telephone numbers and subscriber lines are bound together. Since subscriber lines It cannot be moved at will, so the user terminal can only be fixed in one place for use. However, due to the increase of people's demand for mobile communication, the PSTN network has been unable to meet the requirements of mobile state communication. Under such circumstances, the Personal Handyphone System (PHS) has been developed. It is connected to the PSTN switch in the way, and the user number is bound with the terminal, so that fixed users can move within the range of the local network. Because the PSTN end office switch does not support the service switching function (SSF, Service Switching Function) of the intelligent network platform, and there is no contract information of the intelligent service in the user data, when the user is required to use the intelligent service, he must dial the intelligent service access number, and then The PSTN end office switch connects the call to the fixed intelligent network platform, and then triggers the intelligent service. At the same time, because there is no intelligent service in the user data of the PSTN end office switch, and the calling user cannot actively dial the intelligent service access code, so when the user is called, the PSTN end office switch cannot trigger the intelligent service, nor can the caller Then transfer to the intelligent network platform.

The second generation mobile communication system - GSM (Global System for Mobilecommunications) defines CAP (CAMEL Application Part, Customized Applications) between the Service Switching Point (SSP, Service Switching Point) and the Service Control Point (SCP, Service Control Point). for Mobile network Enhanced LogicApplication Part) protocol, and bind the mobile switching center (MSC, Mobile Switching Center) and SSP together, the SSP can trigger the smart service according to the user's subscription information, without using the smart service access code to trigger. Moreover, the CAP protocol stipulates location information, such as the switch number where the user is currently located, the current location area, etc., and the SCP can adopt different tariffs according to the location information.

Although the PHS system enables user terminals to connect to the network wirelessly, the network equipment still adopts the PSTN network architecture, and the triggering of intelligent services is still implemented through intelligent service access codes, which brings a lot of inconvenience to users. Moreover, when a PHS user roams in different PHS systems, the smart service platform triggered by the smart service access code cannot judge the user's location information, which has great limitations on user billing, and billing flexibility is often The key to the normal operation of business. Because the fixed intelligent network has these limitations, it is difficult to popularize intelligent services among PHS users, especially prepaid services.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art, such as difficulty in realizing smart services and inconvenient billing, in order to realize that the PHS network can trigger calling and called smart services according to user subscription information, and the user does not need to do any special operations; at the same time, when the user When roaming in different PHS systems, the visited PHS system can automatically trigger intelligent services to the user's home intelligent network.

In order to achieve the above object, the present invention provides a method for realizing the intelligent service of the personal portable telephone system, including the following aspects:

Add calling smart service subscription information and called smart service subscription information for users in the home PHS system;

When the user is in the home PHS system, the calling smart service subscription information and the called smart service subscription information are only stored in the home PHS system; when the user roams to the visited PHS system, the home PHS system inserts the calling smart service subscription information into To visit the PHS system;

When the user makes a call, the service switching point of the visiting PHS system triggers the calling intelligent service to the SCP where the PHS system is located according to the calling intelligent service subscription information, and performs call processing under the control of the SCP;

When the user is called, the call is connected to the home PHS system, and the service switching point of the home PHS system triggers the called intelligent service to the SCP where the home PHS system is located according to the called intelligent service subscription information, and performs the call under the control of the SCP call handling;

The control of the SCP at the location of the home PHS system to the service switching point of the visited PHS system includes Continue, Connect, Apply Charging (AC, ApplyCharging), Request Report BCSM Event (RRBE, Request Report BCSMEvent), connect to Resource (CTR, Connect To Resource), play voice (PA, Play Announcement), prompt and collect user information (PnCUI, Prompt AndCollect User Information), remove forward connection (DiscFC, Disconnect ForwardConnection), release call (RC, Release Call );

The information sent by SSP to SCP includes Initial Detect Point (IDP, Initial DetectPoint), Application Charging Report (ACR, Apply Charging Report), Event Report (ERB, Event Report BCSM), and Specialized Resource Report (SRR, Specialized Resource Report).

The present invention makes the PHS service switching point have SSP capability through the transformation of the PHS service switching point and the GSM CAP, and adds some information specific to the PHS system in the GSM CAP, and realizes that the PHS network triggers the calling party and the called party according to the user subscription information. Smart business, users do not need to do any special operations. When a user roams in different PHS systems, the visited PHS system can automatically trigger intelligent services to the user's home intelligent network without being restricted by region.

Description of drawings

Figure 1 is a network diagram of the PHS intelligent network system.

Fig. 2 is a flow chart of intelligent service processing when a PHS user is calling in the method of the present invention.

Fig. 3 is a flow chart of intelligent service processing when a PHS user is called in the method of the present invention.

Fig. 4 is a flow chart of voice management provided by the intelligent platform for PHS users in the method of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 shows the network diagram of the PHS intelligent network system. The PHS intelligent network system consists of the PHS system and service control points. The PHS system can provide users with various PSTN services, including various basic services and supplementary services. Users connect to the network through wireless. In order to provide PHS users with intelligent services, it is necessary to add SCP and SSP on the basis of the PHS system. The SCP is a set of independent equipment that provides control of intelligent services. At the same time, the service switching function (SSF) is added to the Internet gateway (IGW, Interconnect Gateway) of the PHS system, so that the IGW can also serve as the SSP. The SCP and the SSP are interconnected using the CAP protocol.

The CAP protocol is a protocol dedicated to intelligent services in the GSM network. It is developed on the basis of the fixed intelligent network protocol INAP (Intelligent Network Application Part). Compared with INAP, CAP adds mobility information and is more suitable for mobile networks. However, PHS users are connected to the network in a wireless manner, and have mobility similar to that of the GSM network, so it is more suitable to use CAP to realize intelligent services.

The implementation methods of intelligent services are very different from basic services and supplementary services. The logical relationship between basic services and supplementary services is implemented in the software of the switching device IGW. If the service logic is modified, the service switching point must be modified. software. The logical relationship of intelligent business is realized in SCP. SSP provides a set of standard business processing functions. SCP controls SSP to execute these business processing functions through CAP protocol, so that the business switching point realizes the corresponding business logic and achieves the separation of business and switching. the goal of. If you modify the business logic, you need to modify the software in the SCP.

In the PHS system, the most basic function of the user is to call. With the control of the SCP on the SSP, when the PHS user initiates a call and receives a call, the SCP can calculate the call rate according to the user's account balance, call type, and location information. , monitor the call status in real time, and end the call immediately when the balance is exhausted. SCP can also provide various voice processes to provide users with services such as querying balances. The following describes in detail how the SCP controls the calling and calling of the PHS, and how to provide the voice process for the PHS user.

Figure 2 shows the intelligent service processing flow when the PHS user is calling.

1) When a PHS user initiates a call, the IGW/SSP first receives the call setup (Setup) message sent by the user, triggers the calling intelligent service process according to the intelligent service subscription information of the user data, and sends an IDP message to the SCP with There are the number of the PHS user, the called number, and the paging area (PA, Paging Area) where the PHS user is located.

2) The SCP obtains the account information according to the PHS user number, and then converts the call rate according to the called number and location information. If the user account balance meets the call requirements, it sends RRBE, AC and Continue to the SSP.

3) After the SSP receives the RRBE, it assembles detection events. These events include the called party answering, the called party being busy, the called party not answering, routing selection failure, the called party disconnecting, the calling party disconnecting, and the calling party giving up.

4) After receiving the AC, the SSP saves the maximum talk time of this call.

5) After the SSP receives the Continue, it analyzes the called number and performs connection processing on the call. If the PHS user calls the PSTN user, an Initial Address Message (IAM, InitialAddress Message) message will be sent to the PSTN switch.

6) When the called user rings, the SSP receives the address complete message (ACM, Address Complete Message) returned by the PSTN switch, and the SSP forwards the ringing (Alert) message to the PHS user.

7) When the called user answers, the SSP receives the response message (ANM, Answer Message) returned by the PSTN switch, and the SSP sends an ERB message to the SCP, reports the called response event, and starts timing the call, and then forwards it to the PHS user Connect message.

8) When the called user disconnects, the SSP receives the REL message sent by the PSTN switch, and the SSP returns Release Complete (RLC, Release Complete), and sends ACR and ERB to the SCP. The ACR message has the call time of this call, The ERB message instructs the called party to disconnect.

9) The SCP returns an RC message after deducting fees according to the call time.

10) After receiving the RC message, the SSP sends a Release message to the PHS user to release the call.

11) If the calling user disconnects first during the conversation, the SSP will instruct the calling user to disconnect in the ERB message sent to the SCP.

12) If during the call, the SSP finds that the call has reached the maximum call time in the AC, it will send an ACR message to the SCP. The SCP can send an RC to release the call according to the service flow, or send an AC message to continue monitoring the next talk time.

Figure 3 shows the intelligent service processing flow when the PHS user is called.

1) Assuming that the PSTN calls the PHS user, the IGW/SSP first receives the IAM message sent by the PSTN switch, triggers the called intelligent service process according to the intelligent service subscription information of the user data, and sends an IDP message to the SCP. The message contains the calling number, The number of the PHS user and the paging area (PA, PagingArea) where the PHS user is located.

2) The SCP obtains the account information according to the PHS user number, and then converts the call rate according to the calling number and location information. If the user account balance meets the call requirements, it sends RRBE, AC and Continue to the SSP.

3) After the SSP receives the RRBE, it assembles detection events. These events include the called party answering, the called party being busy, the called party not answering, the called party disconnecting, the calling party disconnecting, and the calling party giving up.

4) After receiving the AC, the SSP saves the maximum talk time of this call.

5) After receiving the Continue, the SSP sends a Setup message to the PHS user.

6) When the called user rings, the SSP receives the Alert message returned by the PHS user, and the SSP forwards the ACM message to the PSTN switch.

7) When the called user answers, the SSP receives the Connect message returned by the PHS user, the SSP sends an ERB message to the SCP, reports the called response event, and starts timing the call, and then forwards the ANM message to the PSTN switch.

8) When the called user disconnects, the SSP receives the Release message returned by the PHS user, and the SSP sends ACR and ERB to the SCP. The ACR message contains the talk time of the call, and the ERB message instructs the called user to disconnect.

9) The SCP returns an RC message after deducting fees according to the call time.

10) After receiving the RC message, the SSP sends a REL message to the PSTN switch to release the call.

11) If the calling user disconnects first during the conversation, the SSP will instruct the calling user to disconnect in the ERB message sent to the SCP.

12) If during the call, the SSP finds that the call has reached the maximum call time in the AC, it will send an ACR message to the SCP. The SCP can send an RC to release the call according to the service flow, or send an AC message to continue monitoring the next talk time.

Figure 4 shows the flow of voice management provided by the SCP to users.

1) The PHS user dials the voice management number, the IGW/SSP receives the Setup message sent by the PHS user, triggers the calling smart service according to the smart service information signed by the user, and sends an IDP message to the SCP, which contains the calling number, PHS user number, the paging area (PA, Paging Area) where the PHS user is located.

2) The SCP obtains the account information according to the PHS user number, and then judges that the user uses the voice management process according to the called number, and sends a CTR message to the SSP.

3) After receiving the CTR message, the SSP applies for voice resources, and sends Alert and Connect messages to the PHS user.

4) If the SCP only needs to play the voice to the user, it sends a PA message to the SSP with the voice number in the message. If the SCP needs to play the voice to the user and needs to receive the number information input by the user, it will send a PnCUI message to the SSP with the voice number in the message.

5) After receiving the PA message, the SSP plays the corresponding voice to the user according to the voice number, and returns the SRR message to the SCP after the voice playing ends, notifying the SCP of the end of the voice playing.

6) After receiving the PnCUI message, the SSP plays the corresponding voice to the user according to the voice number, and monitors the user's income number information at the same time. After receiving all the numbers input by the user, send a PnCUI response message (PnCUIRsp, PnCUI Response) to the SCP to notify the SCP of the number information input by the user.

7) The SCP can decide whether to continue to play other voices and receive user input according to the business process and the number information input by the user, and continue to send PA or PnCUI messages.

8) When the SCP decides to end the voice management process, it sends a DiscFC message and an RC message to the SSP.

9) After receiving the DiscFC, the SSP releases the voice resource.

10) After receiving the RC message, the SSP sends a Release message to the PHS user to release the call.

By using the method described in the above invention, it is possible to realize the PHS intelligent service by utilizing the CAP message.

Claims (9)

1. A method for realizing intelligent services of a personal portable telephone system, comprising the following steps: Add calling smart service signing information and called smart service signing information for users in the attributable personal portable phone system; When the user belongs to the personal portable telephone system, the calling intelligent service subscription information and the called intelligent service subscription information are only stored in the personal portable telephone system; Insert the calling smart service signing information into the visiting personal portable phone system; When a user makes a call, the service switching point of the visiting personal portable phone system triggers the calling smart service to the service control point where the personal portable phone system is located according to the calling smart service contract information, and makes a call under the control of the service control point processing; the service control point provides users with voice management; When the user is called, the call is connected to the personal portable phone system, and the service switching point of the personal portable phone system triggers the called smart service to the service control point where the personal portable phone system is located according to the called smart service contract information , and perform call processing under the control of the service control point; the service control point provides the voice management process for the user. 2. The method for realizing the intelligent service of the personal portable telephone system according to claim 1, wherein the control of the service switching point of the visiting personal portable telephone system by the service control point belonging to the location of the personal portable telephone system includes the following content: Continue, connect, apply for billing, request to report basic call state model BCSM events, connect to resources, play voice, prompt and collect user information, tear down the forward connection and release the call. 3. The method for realizing the intelligent service of the personal portable phone system according to claim 1, wherein the intelligent service when the user of the personal portable phone makes a calling call further comprises the following steps: Step 1: When a personal portable phone user initiates a call, the Internet gateway/service switching point first receives the call setup message sent by the user, triggers the calling smart service process according to the smart service subscription information of the user data, and sends an initial call to the service control point detection point message; Step 2: The service control point obtains the account information according to the personal mobile phone user number, and then converts the call rate according to the called number and location information. If the user account balance meets the call requirements, then send a request to the service switching point Report basic call state model BCSM events, apply for billing and continue messages; Step 3: After the service exchange point receives the request to report the basic call state model BCSM event, it performs the assembly of the detection event; Step 4: After the service exchange point receives the application for charging, it saves the maximum talk time of the call; Step 5: After receiving the continuation message, the service switching point analyzes the called number and performs connection processing on the call; Step 6: When the called user rings, the service switching point receives the full address message returned by the PSTN switch, and the service switching point forwards the ringing message to the personal portable phone user; Step 7: When the called user answers, the service switching point receives the response message returned by the PSTN switch, the service switching point sends an event report message to the service control point, reports the called response event, and starts timing the call, and then reports to the individual The mobile phone user forwards the connection message; Step 8: When the called user disconnects, the service switching point receives the release message sent by the PSTN switch, and the service switching point returns that the release is completed, and sends an application charging report and an event report to the service control point. There is talk time for this call, and the event report message instructs the called user to disconnect; Step 9: The service control point returns a release call message after deducting the fee according to the call time; Step 10: After receiving the release call message, the service switching point sends a Release message to the personal portable phone user to release the call; Step eleven: If the calling user disconnects first during the conversation, the service switching point will instruct the calling user to disconnect in the event report message sent to the service control point. 4. The method for realizing intelligent services of a personal portable telephone system according to claim 3, wherein if a personal portable telephone user calls a PSTN user, an initial address message will be sent to the PSTN exchange. 5. The method for realizing the intelligent service of the personal portable phone system according to claim 1, characterized in that, when the user of the personal portable phone performs the intelligent service when being called, the method further includes the following steps: Step 1: Assuming that the PSTN calls a personal portable phone user, the Internet gateway/service switching point first receives the initial address message sent by the PSTN switch, triggers the called smart service process according to the smart service subscription information of the user data, and sends the initial detection to the service control point point message; Step 2: The service control point obtains the account information according to the user number of the personal mobile phone, and then converts the rate of the call according to the calling number and location information. If the balance of the user account meets the call requirements, it sends a request to the service switching point Report basic call state model BCSM events, apply for billing and continue messages; Step 3: After the service exchange point receives the request to report the basic call state model BCSM event, it performs the assembly of the detection event; Step 4: After the service exchange point receives the application for charging, it saves the maximum talk time of the call; Step 5: After receiving the continuation message, the service switching point sends a call establishment message to the personal portable phone user; Step 6: When the called user rings, the service switching point receives the Alert message returned by the personal portable phone user, and the service switching point forwards the full address message to the PSTN switch; Step 7: When the called user answers, the service exchange point receives the connection message returned by the personal portable phone user, the service exchange point sends an event report message to the service control point, reports the called party answer event, and starts timing the call, and then Forward the response message to the PSTN switch; Step 8: When the called user disconnects the call, the service switching point receives the Release message returned by the personal portable phone user, and the service switching point sends an application charging report and an event report to the service control point. The duration of the call, and the event report message instructs the called user to disconnect; Step 9: The service control point returns a release call message after deducting the fee according to the call time; Step 10: After receiving the release call message, the service switching point sends a release message to the PSTN switch to release the call; Step eleven: If the calling user disconnects first during the conversation, the service switching point will instruct the calling user to disconnect in the event report message sent to the service control point. 6. The method for realizing intelligent services of a personal portable telephone system according to claim 3 or 5, characterized in that, the initial detection point message contains the number of the personal portable telephone user, the called number, the location of the personal portable telephone user, etc. paging area. 7. The method for realizing intelligent services of a personal portable telephone system according to claim 3 or 5, wherein said events include the called party answering, the called party being busy, the called party not answering, the route selection failure, and the called party disconnecting , The caller disconnects the call, and the caller abandons. 8. The method for realizing intelligent services of a personal portable telephone system according to claim 3 or 5, wherein, if during a call, the service switching point finds that the call has reached the maximum call time in the application for billing, it will report to the service The control point sends an application charging report message; the service control point sends a release call according to the business process, or sends an application charging message to continue monitoring the next segment of the call time. 9. The method for realizing the intelligent service of the personal portable telephone system according to claim 1, wherein the step of providing voice management for the user by the service control point includes the following aspects: Step 1: The personal mobile phone user dials the voice management number, the Internet gateway/service exchange point receives the call establishment message sent by the personal mobile phone user, triggers the calling smart service according to the smart service information signed by the user, and sends the initial detection to the service control point Click the message, the message contains the calling number, the number of the personal mobile phone user, and the paging area where the personal mobile phone user is located; Step 2: The service control point obtains the account information according to the user number of the personal portable phone, and then judges that the user uses the voice management process according to the called number, and sends a connection to resource message to the service exchange point; Step 3: After receiving the connection to resource message, the service switching point applies for voice resources, and sends Alert and connection messages to the personal portable phone user; Step 4: If the service control point only needs to play voice to the user, then send a paging message to the service switching point with the voice number in the message; if the service control point needs to play voice to the user, it also needs to receive the number input by the user information, send prompts to the service switching point and collect user information messages, with voice numbers in the messages; Step 5: After the service switching point receives the paging area message, it plays the corresponding voice to the user according to the voice number, and after the voice playing ends, it returns a dedicated resource report message to the service control point, notifying the service control point that the voice playing is over; Step 6: After the service exchange point receives the prompt and collects the user information message, it plays the corresponding voice to the user according to the voice number, and monitors the user's income number information at the same time; after receiving all the numbers entered by the user, it sends a prompt to the service control point and collects User information response, notifying the service control point of the number information entered by the user; Step 7: The service control point decides whether to continue to play other voices and receive user input according to the business process and the number information input by the user, continue to send the paging area or prompt and collect user information messages; Step 8: When the service control point decides to end the voice management process, send a disconnection forward connection message and a release call message to the service switching point; Step 9: The service switching point releases the voice resource after receiving the disconnection forward connection message; Step 10: After receiving the release call message, the service switching point sends a Release message to the personal portable phone user to release the call.

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