CN1529526A - Method for providing personalized ring back tone in mobile communication system - Google Patents

Abstract

The invention provides a method for providing personalized ring back tone in a mobile communication system. The mobile switching center of the calling party sends a route query message to the home location register of the called party according to the call of the calling user; Ringback tone service, the calling party's mobile switching center routes the call to the ring tone server specified by the called home location register, and then forwards the call to the called party's mobile switching center; if the called party is idle, the called party's mobile switching center The switching center returns a response message to the ring tone server; the ring tone server plays the corresponding ring back tone according to the numbers of the calling and called users, and at the same time shields the ring back tone sent by the mobile switching center of the called party; after the called user answers, the ring tone The server stops playing the ringback tone according to the message, and establishes a call connection. The invention realizes the replacement of the ring-back tone in the mobile communication system, changes the original single ring-back tone, and enables users to customize voice or music ring-back tone according to needs.

Description

Method for providing personalized ring back tone in mobile communication system

technical field

The invention relates to the field of mobile communication, in particular to a method for providing multiple ring-back tones to a calling user during a telephone call.

Background technique

With the development of communication technology, the number of mobile communication users increases rapidly, and operators provide more and more business services for mobile users, but the ringback tone of the phone remains unchanged. In the call service, when the calling user calls the called user, if the called user is in an idle state, a ring-back tone is played to the calling user. The ring-back tone is generally an interval of "beep...beep"; When the called user is busy or cannot be paged or is turned off, the ringback tone heard by the calling user is the corresponding recording notification.

In order to meet the personalized requirements of mobile users, providing rich and colorful ring back tones has become a new service provided by operators, which means that the monotonous ring back tones in the past can be changed into rich and colorful voice and music ring back that can be customized by users. The tone will be sent to the calling user during the communication waiting time. However, the existing ring-back tone technology cannot meet this requirement.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for providing a personalized ring back tone in a mobile communication system, realize the user's own customization of the ring back tone, and play it to the calling user when it is the called user, changing the current There is a problem with a single ringback tone.

The method for providing personalized ring back tone in the mobile communication system of the present invention, the mobile communication system includes the calling party mobile switching center, the called party home location register, the ring tone server, and the called party mobile switching center, wherein The ring tone server is located between the calling party's mobile switching center and the called party's mobile switching center; the method includes:

Step 1, the calling user initiates a call request to the calling party's mobile switching center; the calling party's mobile switching center sends a route query message to the called party's home location register;

Step 2, the called party's home location register judges whether the called user has customized the personalized ring back tone service; if not, then execute according to the normal call connection flow; if customized, then execute step 3;

Step 3, the called party's home location register returns a route query response message to the calling party's mobile switching center;

Step 4, the calling party's mobile switching center routes the call to the ring tone server according to the information in the route query response message; the ring tone server forwards the call to the called party's mobile switching center;

Step five, the called party's mobile switching center searches for the called user; if the called user is busy or cannot be paged, then play the corresponding recording notification to the calling user; if the called user is in an idle state, then execute the step six;

Step 6, the called party's mobile switching center returns a call response message to the ring tone server;

Step 7, the ring tone server forwards the call response message to the calling party's mobile switching center, and plays the corresponding ring back tone according to the number of the calling and called user, and simultaneously shields the ring back tone sent by the called party's mobile switching center;

Step 8: After the called user answers, the ring tone server stops playing the ring back tone according to the message, and establishes a call connection.

The invention realizes the replacement of the ring back tone in the mobile communication system, changes the original single ring back tone, enables the user to customize the voice or music ring back tone according to the needs, and enables the calling user to wait for the communication. Hearing multiple personalized ring back tones, such as sweet music or greetings, provides a new value-added communication service for the user.

Description of drawings

Fig. 1 is a structural diagram of a communication system applying the present invention;

Fig. 2 is a schematic flow chart of the method of the present invention.

Detailed ways

The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

In the mobile communication system shown in FIG. 1 , it includes the calling party's mobile switching center MSC, the called party's home location register HLR, the ring tone server and the called party's mobile switching center VMSC. The MSC of the calling party is used to initiate a call for the calling user, and connect the call to the corresponding ring tone server according to the response message sent by the HLR of the called party. The called party's home location register HLR records whether the called user is a personalized ring tone user's subscription information, and has an identifier indicating that the called user is a personalized ring back tone user, and also stores the mobile switching address that meets the service requirements. The information of the center MSC; the ring tone server is used to manage service providers, ring tone resources and user information, provide user-defined ring back tone according to the information of the calling and called users, and complete the function of call connection; the called party mobile switching center The VMSC is used to receive the call from the calling party connected by the ring tone server, and search for the called user to complete the calling function.

If the user needs to use the personalized ring back tone service, he first needs to apply for opening this service, and the user can apply for opening through 1860, voice interaction, business hall, WAP, short message, etc. Then the user can set the music of the ring back tone voluntarily through websites, WAP, short messages, dialing access codes, etc., and the user information and corresponding ring tone resources are all stored in the ring tone service period.

In Fig. 2, when the calling user calls the called user, first initiate a call to the calling party MSC, after the calling party MSC receives the call, send a query routing information (SRI) message to the called party HLR to obtain the called party User's roaming number MSRN. The called party's HLR judges whether the called user is a subscriber of the personalized ring back tone service, and if not, proceeds according to the normal call connection process. If the called user is a subscriber of the personalized ring back tone service, the called party HLR returns a response message SRI_ACK to the calling party MSC, and in the SRI_ACK message, the designated calling party MSC is routed to the ring tone server, and The called user's roaming number MSRN identifies the called user as a subscriber of the personalized ring back tone service, that is, the numbering plan indicator (Numbering Plan Indicator, NPI for short) in the roaming number MSRN is set to 2. If the called party HLR finds that the current calling party MSC cannot provide the personalized ring back tone service, the response message SRI_ACK returned by the called party HLR to the calling party MSC includes an instruction to the calling party MSC to route to the ring back tone service that can provide the ring back tone first. The information of the mobile switching center MSCb of the ring tone service, and the NPI in the roaming number MSRN of the called user is set to 2. According to the NPI of the called user's roaming number MSRN in the SRI_ACK message sent by the called party's HLR, the calling party MSC connects the call of the calling user to the corresponding ring tone server, that is, sends an initial call to the ring tone server. Address message IAM, wherein the called number is the routing prefix plus the number MSISDN of the called user plus the roaming number MSRN of the called user. The ring tone server registers the incoming call as an incoming call of the personalized ring tone service, and then connects the initial address message IAM to the called party MSC according to the roaming number MSRN of the called user. The called party MSC searches for the called user according to the number MSISDN of the called user. If the called user is busy or cannot be paged, the called party MSC plays the corresponding recording notification to the calling user. At this time, the ring tone server Only transparent transmission of data is performed. If the called user is in an idle state, the called party MSC returns an address complete message ACM to the ring tone server. When the ring tone server receives the signal, it sends the ACM message to the calling party MSC, and searches for the corresponding ringback tone according to the numbers MSISDN of the calling user and the called user, plays it to the calling user, and blocks the called party at the same time Ringback tone from MSC. After the called party answers, the called party MSC sends an answer message ANM to the ring tone server. After the ring tone server receives it, it forwards the message to the calling party MSC, stops playing the ring back tone, and establishes a call.

For the situation that the original calling party MSC cannot provide the personalized ring back tone service, the calling party MSC will first route the call to the mobile switching center MSCb designated by the called party HLR, and then route the call to the ring tone server by MSCb, that is, the calling party The MSC first sends the initial address information IAM to MSCb, and then MSCb sends it to the ring tone server. Similarly, the message returned by the called party MSC is first sent to the mobile switching center MSCb through the ring tone server, and then forwarded to the calling party MSC by MSCb.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the scope of the claims of the present invention.

Claims (3)

1. A method for providing personalized ring back tone in a mobile communication system, said mobile communication system comprising a calling party's mobile switching center, a called party's home location register, a ring tone server, and a called party's mobile switching center, wherein The ring tone server is located between the calling party's mobile switching center and the called party's mobile switching center; it is characterized in that the method includes: Step 1, the calling user initiates a call request to the calling party's mobile switching center; the calling party's mobile switching center sends a route query message to the called party's home location register; Step 2, the called party's home location register judges whether the called user has customized the personalized ring back tone service; if not, then execute according to the normal call connection flow; if customized, then execute step 3; Step 3, the called party's home location register returns a route query response message to the calling party's mobile switching center; Step 4, the calling party's mobile switching center routes the call to the ring tone server according to the information in the route query response message; the ring tone server forwards the call to the called party's mobile switching center; Step five, the called party's mobile switching center searches for the called user; if the called user is busy or cannot be paged, then play the corresponding recording notification to the calling user; if the called user is in an idle state, then execute the step six; Step 6, the called party's mobile switching center returns a call response message to the ring tone server; Step 7, the ring tone server forwards the call response message to the calling party's mobile switching center, and plays the corresponding ring back tone according to the number of the calling and called user, and simultaneously shields the ring back tone sent by the called party's mobile switching center; Step 8: After the called user answers, the ring tone server stops playing the ring back tone according to the message, and establishes a call connection. 2. The method for providing personalized ring back tone in mobile communication system according to claim 1, characterized in that: said step 3 further comprises: the called party's home location register judges whether the calling party's mobile switching center can provide If the ring-back tone service can be provided, the called party's home location register returns a route query response message to the calling party's mobile switching center, indicating that the calling party's mobile switching center routes the call to the ring tone server; if the calling party's mobile switching center If the center cannot provide the ring-back tone service, the called party's home location register selects a mobile switching center that can provide the ring-back tone service, and returns a route query response message to the calling party's mobile switching center, indicating that the calling party's mobile switching center will call Routing to the mobile switching center that can provide the ring back tone service, and then routing to the ring tone server by the mobile switching center that can provide the ring back tone service. 3. The method for providing personalized ring back tone in mobile communication system according to claim 1 or 2, characterized in that: the called number contained in the call request sent by the calling party's mobile switching center is: routing Prefix plus called user's number plus called user's roaming number.

Images