CN1798203A - Implementation method of calling name display service - Google Patents

Abstract

The invention discloses a method for realizing the CNAP calling name display service. The caller information is stored in the calling information server, and the process of the calling user terminal calling the called user terminal includes the following steps: A. The system sends a call request; B. The switching system sends a caller information request to the caller information server, and at the same time or after receiving the return information from the caller information server, sends a call request to the called user terminal; C. The caller information server sends a call request according to the caller information server Caller information request, and send the corresponding caller information to the called user terminal for display. The present invention does not need to be upgraded and modified by the switching system, and the CNAP service can be realized only by the transparent transmission of the caller information by the switching system, which simplifies the signaling process and saves system resources.

Description

Implementation method of calling name display service

technical field

The invention relates to a method for realizing calling name presentation service (CNAP).

Background technique

At present, identification of telephone calling number information has been realized in both mobile communication systems and fixed communication systems. Calling Identity Delivery (CID, Calling Identity Delivery) means that the switch transmits the calling number of the calling terminal and the date and time of the call to the called terminal, and the display of the called terminal displays the information and store. In this way, the called terminal user knows exactly which numbers have been called before off-hook, or checks which numbers have been called after returning from going out. Usually, a switch with calling number information identification service function cooperates with a terminal with calling number display service function to realize CID, and information such as calling number and call time can be displayed on the called terminal.

The above-mentioned CID service can only transmit relatively simple information such as calling number and calling time, but now both individual users and enterprise users hope to send or receive richer personalized information in addition to calling number, such as name, personality, etc. Description, business name, photo, ring tone, video, etc. for caller identification, and display the corresponding caller preset caller information according to different called parties.

In fact, for a mobile communication terminal, the name corresponding to the calling number can be set in the phone book of the called terminal, and when the calling party dials the called party, the stored name corresponding to the calling number is displayed on the called terminal. But this is only limited to the caller information stored by the called terminal, and the phone number that the mobile communication terminal can store is limited. When an unfamiliar phone calls in, it still cannot display the caller information except the caller number and call time.

At present, for mobile communication terminals, a calling name presentation (CallingNAme Presentation, CNAP) service based on the intelligent network has appeared. By signing up for this service, the calling user can display the name on the called user terminal when calling the called user. The calling user name.

Referring to Fig. 1, Fig. 1 is a network diagram of realizing calling name display service based on intelligent network in GSM mobile communication network in the prior art. The caller customizes the service on the network side (SCP) and saves his own calling name information. In this way, when the calling party dials the called party, the SCP uses the extended intelligent network interface protocol to transfer the calling name The information is transmitted to the switch, and the switch transmits it to the called terminal. Refer to FIG. 2 for the call flow, which is a call flow for realizing the calling name display service in the prior art. The process includes the following steps:

Step 201, the calling user terminal (MS) sends a call request to the called MS to the calling mobile switching center MSC.

Step 202, the calling MSC obtains the CSI information of the calling party from the VLR according to the call request, and triggers the CNAP service to the SCP according to the obtained subscription information (CSI) information.

In step 203, the SCP sends a connect operation to the calling MSC immediately, and modifies the calling number during the connect operation, that is, adds a CNAP special prefix number to the calling number.

Step 204, the calling MSC sends a call request to the called MSC according to the connect operation, and the call request includes the calling number with the CNAP special prefix number.

Step 205, the called MSC triggers the CNAP service to the calling SCP according to the CNAP special prefix number and the calling number segment in the call request.

Step 206, the calling SCP strips the CNAP prefix code in the calling number to obtain the real calling number, and according to the calling and called numbers, inquires the local database to obtain the calling name information that needs to be displayed to the called, and then sends the called MSC Send the connect operation, and the extension interface of the connect operation includes the calling name information.

Step 207, the called MSC sends a call request and a Facility operation to the called terminal, and the Facility operation includes calling name information.

Then, the called MS displays the calling name information received through the Facility operation.

It can be seen that the prior art solution for implementing the CNAP service needs to transform and upgrade the MSC, and the number of triggers is large, the signaling process is complicated, and the network overhead is large.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a calling name presentation service (CNAP) implementation method, which simplifies the signaling process and saves system resources.

In order to achieve the above object, the present invention provides a method for realizing the CNAP service, the method comprising: storing the calling information in the calling information server, and the process of the calling user terminal calling the called user terminal includes the following steps:

A. The calling user terminal sends a call request to the switching system;

B. The switching system sends a call request to the called user terminal, and at the same time or after receiving the return information from the calling information server, sends a call request to the called user terminal;

C. The caller information server sends the corresponding caller information to the called user terminal for display according to the caller information request.

Wherein, the one sending the calling information request to the calling information server in the step B may be the calling end switch or the called end switch in the switching system.

The method for storing caller information in the caller information server may be: the calling user accesses the caller information server or a portal server connected to the caller information server through Web or WAP, and on the caller information server Customize the caller information and store it; or customize the caller information on the calling server through the portal server and store it.

The calling information may at least include: calling number and calling name information;

The method for customizing the caller information is: and customizing at least one of the filtering rules of the called party, time period and area;

The method for sending the calling party information to the called user terminal in step C is: sending the corresponding calling party information according to the customized filtering rules.

The method for sending the corresponding calling information according to the customized filtering rules may be: sending the calling information corresponding to the called number.

The caller information server may be a service control node SCP or a USSD server or a personal information management PIM server.

The calling user terminal and the called user terminal are mobile communication terminals, and the calling terminal switch and the called terminal switch are mobile switching centers MSC;

When the caller information server is an SCP, storing the caller information in the caller information server is for the caller to customize the CNAP service at the SCP;

In step B, the switching system triggers the CNAP service on the SCP according to the calling party's subscription information CSI;

The method for sending the calling information to the called user terminal as described in step C is: the SCP sends the calling information to the called user terminal through a flash message; or the SCP sends the calling information to the short message center SMC in a short message , the SMC sends the short message containing the caller information to the called user terminal.

Wherein, the process of the SCP sending the caller information to the called user terminal by flash message may include:

C01. The SCP sends a request to obtain routing information message to the home location register HLR to which the called user terminal belongs according to the mobile station number of the called user terminal;

C02, HLR responds to SCP request, and returns routing information to SCP;

C03. The SCP sends the short message containing the caller information to the called user terminal through the called MSC according to the returned routing information.

The process by which the SCP sends the caller information to the called user terminal in the form of a short message may include:

C11, the SCP encapsulates the calling information and the mobile station number of the called user terminal into a short message, and sends it to the SMC;

C12, SMC forwards the short message to the short message center-gateway mobile switching center SMC-GMSC;

C13. SMC-GMSC sends a request to obtain routing information message to the HLR to which the called user terminal belongs according to the mobile station number of the called user terminal carried in the short message;

C14, HLR responds to SMC-GMSC request, and returns routing information to SMC-GMSC;

C15. The SMC-GMSC sends a short message to the called user terminal through the called MSC according to the routing information.

When the calling information server is a USSD server,

The step B may be: the switching system requests the USSD server to send calling information to the called user terminal;

The step C may be: after the USSD server establishes a USSD connection with the called user terminal, the calling information is sent to the called user terminal for display.

When the calling information server is a PIM server, the called user terminal is always online, and in step C, the calling information server uses a data communication protocol to send corresponding calling information to the called user terminal for display.

It can be seen from the above-mentioned technical solution that in the implementation method of the calling name display service CNAP of the present invention, the calling user stores the calling information in the calling information server, the calling user terminal initiates a call to the called user, While the system is paging the called terminal, the calling information server sends the calling information to the called user terminal in a way independent of the paging channel. It can be seen that the present invention does not need to upgrade the switching system, and only needs the switching system to transparently transmit the caller information to realize the CNAP service, which simplifies the system structure and signaling process, and saves system resources.

Description of drawings

Fig. 1 is the network diagram that realizes calling name display service based on intelligent network in prior art;

Fig. 2 realizes the call flow of calling name display service for prior art;

FIG. 3 is a schematic diagram of a network according to a first embodiment of the present invention;

Fig. 4 is the call flowchart in the embodiment shown in Fig. 3;

Fig. 5 is a call flow diagram of the second embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

The implementation method of this CNAP service of the present invention stores the calling information in the calling information server, and the process of the calling user terminal calling the called user terminal includes the following steps: A, the calling user terminal sends a call request to the switching system; B. The switching system sends a call request to the called user terminal, and sends a call request to the called user terminal at the same time or after receiving the information returned by the calling information server; C. The calling information server sends the corresponding The calling information is sent to the called user terminal for display.

The caller information server of the present invention can be realized by a service control node SCP or a USSD server or a personal information management PIM server or other dedicated servers.

Two preferred embodiments of the method of the present invention will be described in detail below.

The first preferred embodiment: this embodiment is implemented by using an intelligent network. The calling user stores the calling information in the service control device SCP of the intelligent network.

In this embodiment, the calling user accesses the portal server Portal connected with the intelligent network service control device through Web or WAP mode, and customizes and stores the calling information on the SCP through the portal server; or the calling user passes the short message mode Go to the SCP to customize the service and store the caller information, that is, the caller customizes the CNAP service at the SCP.

The calling information at least includes: calling number and calling name information. The method for customizing calling information may be: customizing called, time period, and area filtering rules.

Referring to FIG. 3 , FIG. 3 is a schematic diagram of a network according to a first embodiment of the present invention. Wherein, the SCP is an intelligent network service control device, which is the control entity of the CNAP service, wherein the CNAP service is customized and the caller information is saved. SMP/SMAP is a service management entity used for CNAP services in the intelligent network. Portal is a portal server and an access point for calling users to customize calling user information. The calling user can access the Portal in WEB/WAP mode, store and customize calling information in the SCP.

There is a CAP interface between the calling MSC and the SCP, which implements standard IDP and connnet operations between the MSC and the SCP.

There is an Interwork interface between the calling MSC and the called MSC, which is a standard network interface between the MSC and the VMSC.

The SCP can communicate with the called MS through the short message SMS.

Referring to FIG. 4 , FIG. 4 is a call flow diagram in the embodiment shown in FIG. 3 . The process includes the following steps:

Step 401, the calling MS sends a call request to the called MS to the calling MSC.

Step 402, the calling MSC sends a query request to the VLR according to the call request.

In step 403, the VLR returns a query response to the calling MSC, which includes the calling party's CSI information.

Step 404, the calling MSC sends an IDP request to trigger a CNAP service to the SCP according to the CSI information.

Step 405, after receiving the IDP request, the SCP sends the corresponding calling information to the called MS for display according to the stored filtering rules customized by the calling user. Flash message refers to a short message that can be directly displayed on the receiver's mobile phone screen and not automatically saved after reading. Please refer to the description of the short message protocol in GSM 03.38.

Step 406, the SCP sends a connect command to the calling MSC.

Step 407, after receiving the connect command, the calling MSC sends a call request to the called MSC through the network interface, that is, the call is connected to the called MSC.

Step 408, the called MSC sends a call request to the called MS.

In step 405 of the present embodiment, the SCP sends the caller information to the called MS by flash message, and the sending process may include the following steps:

In step C01, the SCP sends a request to obtain routing information message to the HLR to which the called user terminal belongs according to the calling information filtering rules customized by the calling user and according to the mobile station number of the called user terminal.

In step C02, the HLR responds to the SCP request and returns routing information to the SCP.

Step C03, the SCP sends the short message containing the caller information to the called user terminal through the called MSC according to the returned routing information.

The method of sending a short message directly to the called MS by the SCP is exactly the same as the method disclosed by the applicant in the Chinese patent application with the application number "200310113468.3" and the name "Short message sending and realization method of short message intelligent service", I won't go into details here.

In this way, when the called MS is in the shutdown/non-service area state, the short message operation will be discarded by the network (without caching and forwarding), without causing additional burden on the network, and there will be no CNAP that the user suddenly receives a short message after turning on the mobile phone Notifications, etc. that unduly influence the user experience.

Since the flash message operation and the connect command are two independent and parallel signaling operations, and on the SCP side, the flash message operation takes priority over the connect command in terms of time, therefore, on the called MS side, the user will receive the short message notification first, The caller's name information is directly displayed on the display screen of the called MS, and then a notification of an incoming call is received.

In fact, the SCP can also send the caller information to the short message center SMC in the form of a short message, and the SMC sends the short message containing the caller information to the called user terminal through the called MSC. Include the following steps:

Step C11, the SCP encapsulates the calling information and the mobile station number of the called user terminal into a short message and sends it to the SMC;

Step C12, the SMC forwards the short message to the short message center-gateway mobile switching center (SMC-GMSC);

Step C13, SMC-GMSC sends a request to obtain routing information message to the HLR to which the called user terminal belongs according to the mobile station number of the called user terminal carried in the short message;

Step C14, HLR respond to SMC-GMSC request, and return routing information to SMC-GMSC;

Step C15, the SMC-GMSC sends a short message containing user information to the called user terminal through the called MSC according to the routing information.

In addition, in this embodiment, the calling name information sent by the SCP to the called MS may also include the calling party number (CallingParty Number), so that when the called MS receives multiple incoming calls at the same time or receives other incoming calls during the call (call on hold), it can reduce the user's confusion caused by receiving short message notifications of multiple CNAP services at the same time.

The second preferred embodiment: this embodiment is realized by using a USSD server. The calling user signs the CNAP service on the USSD server. In the first preferred embodiment, the SCP directly sends a short message to the called terminal to actually realize the function of the short message center. Here, the SCP can also be used as a USSD server to directly communicate with the called terminal using the USSD method. In addition, if the caller information is not directly placed on the USSD server, a USSD application server for storing the caller information, such as a PIM server, can also be set separately.

In this embodiment, the calling user accesses the USSD server through the Web or WAP to store and customize the calling information; or the calling user stores and customizes the calling information at the USSD server through a short message, that is, customizes the CNAP service. The calling information at least includes: calling number and calling name information. The method for customizing calling information may be: customizing called, time period, and area filtering rules.

Referring to FIG. 5, FIG. 5 is a call flow diagram of the second embodiment of the present invention. The process includes the following steps:

Step 501, the calling MS sends a call request to the calling MSC.

Step 502, after the calling MSC obtains the CSI information of the calling user from the VLR, it sends a request command to the USSD server according to the CSI information, requesting to send the calling information, and executes step 506 at the same time.

Step 503, the USSD server sends a USSD connection establishment request to the called MS.

Step 504, the called MS returns a USSD connection establishment response to the USSD server according to the request.

Step 505, the USSD server sends different calling information to the called MS for display according to the stored filtering rules customized by the calling user, and disconnects the USSD connection after the sending is completed.

Step 506, the calling MSC sends a call request to the called MSC.

Step 507, the called MSC sends a call request to the called MS to connect the call.

In GPRS, 3G, and NGN networks, the called terminal can always be online, and the calling information server can use SIP, TCP/IP and other data protocols to transmit calling information to the called terminal, and the called terminal can receive incoming calls while receiving Caller information data sent by the caller information server. The caller information server can be a PIM server or other dedicated servers. For example: when the calling information server is a PIM server, the called user terminal is always online, and the calling information server uses a data communication protocol to send corresponding calling information to the called user terminal for display.

It can be seen from the above-mentioned embodiments that the implementation method of the CNAP service of the present invention does not require signaling interaction between the calling information server and the called switching system, nor does it need to upgrade the switching system, and only needs the switching system to perform transparent transmission The CNAP service can be realized, the signaling process is simplified, and system resources are saved.

Claims (11)

1, the implementation method of a kind of service for displaying name of calling party CNAP is characterized in that, stores caller information in the caller information server, and the process that call subscriber terminal is called out called user terminal may further comprise the steps:

A, call subscriber terminal send call request to switching system;

B, switching system send the caller information request to the caller information server, send call request to called user terminal simultaneously or after receiving caller information server return information;

C, caller information server send to called user terminal with corresponding calling information and show according to this caller information request.

2, the method for claim 1 is characterized in that, what send the caller information request to the caller information server among the described step B is calling switch or called end switch in the switching system.

3, method as claimed in claim 4, it is characterized in that, described in the caller information server method of storage caller information be: the calling subscriber by Web or WAP mode be linked into the caller information server or with portal server that the caller information server links to each other on, customized caller information and storing on the caller information server; Or by this portal server customized caller information and storage to the call server.

4, method as claimed in claim 3 is characterized in that: described caller information comprises at least: calling number, caller name information;

The method of described customized caller information is: and customize in called, period, the zone filtering rule of one of them at least;

The described method that caller information is sent to called user terminal of step C is: the filtering rule according to customization sends corresponding calling information.

5, method as claimed in claim 4 is characterized in that: the method that described filtering rule according to customization sends corresponding calling information is: send the caller information corresponding with called number.

6, the method for claim 1 is characterized in that, described caller information server is service control node SCP or USSD server or personal information management PIM server.

7, method as claimed in claim 6 is characterized in that: described call subscriber terminal and called user terminal are mobile communication terminal, and described calling switch and called end switch are moving exchanging center MSC;

When the caller information server was SCP, the described caller information of storing in the caller information server was that caller is in SCP customization CNAP business;

Switching system to the method that the caller information server sends the caller information request is among the step B: switching system is according to the CNAP business on the CAMEL-Subscription-Information CSI triggering SCP of caller;

The described method that caller information is sent to called user terminal of step C is: SCP sends to called user terminal by the twinkle SM mode with caller information; Or SCP sends to the SMC of short message service center with caller information with short message way, and the short message that SMC will comprise caller information sends to called user terminal.

8, method as claimed in claim 7 is characterized in that: described SCP comprises the process that caller information sends to called user terminal by the twinkle SM mode:

C01, SCP are according to the travelling carriage number of called user terminal, and the attaching position register HLR under called user terminal sends acquisition request routing iinformation message;

C02, HLR response SCP asks, and returns routing iinformation to SCP;

C03, SCP send to called user terminal according to the short message that the routing iinformation that returns will comprise caller information by called end MSC.

9, method as claimed in claim 7 is characterized in that: SCP comprises through the SMC of short message service center caller information with the process that short message way sends to called user terminal:

C11, SCP are encapsulated into the travelling carriage number of caller information and called user terminal in the short message, send to SMC;

C12, SMC are transmitted to short message service center-gateway MSC SMC-GMSC to this short message;

The travelling carriage number of the called user terminal that C13, SMC-GMSC carry according to short message, the HLR under called user terminal send acquisition request routing iinformation message;

C14, HLR response SMC-GMSC asks, and returns routing iinformation to SMC-GMSC;

C15, SMC-GMSC are according to routing iinformation, and C sends SMS message to called user terminal by called MS.

10, method as claimed in claim 6 is characterized in that: when described caller information server is the USSD server,

Described step B is: switching system sends caller information to called user terminal to the USSD server requests;

Described step C is: after USSD server and called user terminal are set up USSD and be connected, caller information is sent to called user terminal show.

11, method as claimed in claim 6, it is characterized in that: when the caller information server is the PIM server, called user terminal is in presence always, and the caller information server uses data communication protocol that corresponding calling information is sent to called user terminal to show among the step C.

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