CN1540901A - Method for realiing service of ring back back tone in CDMA mobile communication system - Google Patents

Abstract

The invention relates to a method for realizing ring-back tone service in a CDMA mobile communication system. In order to solve the problem that only a simple beep ring-back tone can be provided in the prior art, when a calling party initiates a ring-back tone service registration When the user makes a call, the calling party's mobile switching center will route the call to the mobile switching center where the called party is currently located, and will also route the call to the ring back tone service server, and the ring back tone service server will send the call to the calling mobile switching center Send the called party's preset ring back tone signal, so that the calling party can hear the called party's preset ring back tone; if the called party answers the call, cut off the calling mobile switching center and the ring back tone service server The routing between the caller and the called mobile switching center is maintained until the call ends. The ring back tone in the present invention can be music set by the called user himself, a greeting voice, or a sound signal with advertisement content.

Description

Method for Realizing Ring Back Tone Service in CDMA Mobile Communication System

technical field

The present invention relates to a CDMA mobile communication system, more specifically, relates to a method for realizing ring-back tone service in the CDMA mobile communication system.

Background technique

In the existing fixed telephone system, GSM mobile communication system, and CDMA mobile communication system, when making a call, the calling party will hear a 'beep' before the number of the called party is dialed and the other party has not answered.. ....beep...' sound, that is, the said ring back tone of the present invention. Existing ring-back tones are all monotonous beeping toots, and the user cannot change it, and cannot replace the existing monotonous and boring ring-back tones with music customized by oneself.

Contents of the invention

For the above-mentioned defect of prior art, the present invention will solve the problem that existing CDMA mobile communication system can only provide simple beep ring-back tone, provide personalized ring-back tone service (RBT, RingBack Tone service) for the user, Allow users to replace the existing tedious ringback tone with their own customized music.

For solving the problems of the technologies described above, the present invention provides a kind of method that realizes ring back tone service in CDMA mobile communication system, comprises the following steps:

(1) According to the call initiated by the calling party, the called ringback tone service is triggered at the mobile switching center where the calling party is currently located;

(2) If the called party is a legal subscriber of the ring-back tone service in the CDMA mobile communication system, the service control point (SCP) will send the called party's connection number and the ring-back tone service to the calling mobile switching center at the same time The connection number of the server (RBTS);

(3) The calling mobile switching center obtains its current roaming number from the called home location register (HLR) according to the called party's connection number, and routes the call to the mobile switching center where the called party is currently located according to the roaming number center;

(4) the calling mobile switching center is according to the connection number of the ring back tone service server, the call is routed to the described ring back tone service server simultaneously, and the ring back tone signal is sent to the calling mobile switching center by the ring back tone service server , and forwarded to the calling party by the calling mobile switching center;

(5) if the called party answers the call, then cut off the route between the calling mobile switching center and the ring-back tone service server, stop sending the ring-back tone signal, and keep the route between the calling party and the called mobile switching center, Until the caller and called end the call.

In the step (2) of the inventive method, specifically comprise the following steps: (2-1) the calling mobile switching center sends a message to the called home location register, to obtain the information of whether the called party is a ring back tone service subscriber (2-2) After receiving the information that the called party returned by the called home location register is a subscriber, the calling mobile switching center sends an authentication request to the service control point, and the service control point checks the called party's Validity is authenticated, and when the authentication is qualified, the calling party's connection number and the ring-back tone service server (RBTS) connection number are issued to the calling mobile switching center at the same time.

In the present invention, users can customize their own ring-back tone service through voice flow, management flow and website. And the ring back tone signal selected by oneself is sent to the ring back tone service server, when other people dial the mobile phone of this user, just can hear the ring back tone customized by the called user. The ring back tone here can be music set by the called user, a greeting voice, or a sound signal with advertisement content. The ring-back tone service of the present invention replaces the existing monotonous ring-back tone with beautiful music, and on this basis, a new advertising service can be evolved, so that mobile operators can provide users with personalized services, differentiated Leading in terms of services.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the networking schematic diagram of ring back tone service among the present invention;

Fig. 2 is the flow chart that realizes ring back tone service by the method of the present invention;

FIG. 3 is a signal flow diagram coordinated with FIG. 2 .

Detailed ways

In the present invention, the networking structure of ring back tone service is as shown in Figure 1, wherein, HLR is the called home location register for storing the various information of called party, SCP is service control point, and SMP is service management point , MSC is the mobile switching center where the called party is located, (G)MSC is the (gateway) mobile switching center where the calling party is located, RBTS is the ring back tone service server, and SP is to provide users with various ring back audio service provider. As can be seen from Figure 1, the user can register the ring-back tone service through the camp account system and the service management point SMP, and then customize the personalized ring-back tone signal through the SP, and then upload the ring-back tone customized by the user to the On the ring back tone service server RBTS.

As can be seen from Fig. 1, in the present invention, the calling party can be a fixed telephone network user or a GSM mobile user, and correspondingly, the calling mobile switching center is the gateway mobile switching center GMSC in the CDMA mobile communication system. Of course, the calling party can also be a CDMA mobile user, and correspondingly, the calling mobile switching center is the mobile switching center MSC in the CDMA mobile communication system. Among them, the called party is an ordinary user in the CDMA mobile communication system or a user who has signed an intelligent service. Among them, an ordinary user refers to a user who only registers the ring-back tone service, and an intelligent user includes PPC and VPN realized through an intelligent network. Smart business users.

As shown in Figure 2 and Figure 3, assuming that a fixed-line user calls a CDMA user, the process is as follows:

(1) According to the call initiated by the calling party, the called ringback tone service is triggered in the GMSC where the calling party is currently located. Among them, if the calling party is a fixed or other network user such as GSM, the ring-back tone service of the called party is triggered at the CDMA gateway GMSC; Ringtone business.

Then can check whether the called party is the legal subscriber of the ring-back tone service in the CDMA mobile communication system, if then enter the ring-back tone service process on the left side among Fig. 2, otherwise enter the ordinary call process on the right side among Fig. 2, here only Describe the flow of ring back tone service.

(2) Firstly, the calling GMSC sends a message to the called home location register to obtain information on whether the called party is a ring back tone service subscriber. As can be seen from Figure 3, the calling GMSC sends a LOCREQ message to the called HLR by triggering the Mobile_Termination trigger to obtain the information of whether the called party is a ring-back tone service subscriber; Return the corresponding information for the subscribed user.

(3) After receiving the information that the called party returned by the called HLR is a subscriber, the calling GMSC sends an authentication request to the SCP by triggering the Initial_Termination trigger, and receives the return message from the SCP; then, the calling GMSC Trigger the Advanced_Termination trigger, send the ANLYZD message to the service control point, and receive the message returned by the service control point. The SCP authenticates the legitimacy of the called party, and when the authentication is qualified, it sends the called party's connection number and the RBTS's connection number to the calling GMSC at the same time.

(4) The calling GMSC obtains the current roaming number from the called HLR according to the connection number of the called party, and routes the call to the MSC where the called party is currently located according to the roaming number, that is, the calling GMSC and the called party are connected. MSC.

(5) At the same time, the calling GMSC also routes the call to the RBTS according to the connection number of the RBTS, that is, the calling GMSC and the RBTS are also connected at the same time.

(6) After the connection between the calling GMSC and the RBTS, the RBTS will send the ring-back tone signal scheduled by the called party to the calling GMSC, and forwarded to the calling party terminal by the calling GMSC. Fixed telephone terminal.

(7) Through the above steps, the calling GMSC is connected to the called MSC, and is also connected to the RBTS at the same time. At this time, the calling party can hear the preset ringback tone of the called party through the fixed telephone terminal, and the called party Then you can know that you are being called by the sound of the incoming call ringing or the vibration prompt signal. If the called party answers the call, the route between the calling GMSC and the ring-back tone service server will be cut off immediately, and the sending of the ring-back tone signal will be stopped; at the same time, the route between the calling GSMC and the called MSC will be maintained, so that Pass through between the caller and the called party until the end of the call.

In the above-mentioned steps (1), (2), and (3), the process of processing the ring-back tone service through the Advance_Termination trigger is described. In fact, it can also be defined between Initial_Termination or SCP, (G)MSC Message format or trigger to realize this business process.

In addition, the above steps (4), (5) are carried out simultaneously, so it can also be carried out in the order of (1), (2), (3), (5), (4), (6), (7) .

In the present invention, the ring back tone signal is selected by the CDMA user and sent to the RBTS. The user can choose various ring back tone signals, such as music set by the user himself, greeting voice, or sound signal with advertisement content.

Acronyms used in this patent document

CDMA Code Division Multiple Access Code Division Multiple Access

MS Mobile Station Mobile Station (Mobile Phone)

AIP Advanced Intelligent Peripheral Enhanced Intelligent Peripheral

RBT Ring Back Tone service Ring Back Tone service

RBTS Ring Back Tone service Server Ring Back Tone Service Server

CRBT Customize Ring Back Tone service Customize ring back tone service

SCP Service Control Point Service Control Point

SDP Service Data Point Business Data Point

SCE Service Creation Environment Service Creation Environment

SIB Service Independent Building Block Business Independent Component

SMAP Service Management Agent Point Business Management Access Point

SMP Service Management Point Business Management Point

SSP Service Switching Point Service Switching Point

VPN Visual Private Network Virtual Private Network Service

HLR Home Location Register Home Location Register

SP Service Provider Service Provider

PPC PrePaid Card Prepaid Card Business

Claims (10)

1, a kind of method that realizes ring back tone service in CDMA mobile communication system, is characterized in that, comprises the following steps: (1) According to the call initiated by the calling party, the called ringback tone service is triggered at the mobile switching center where the calling party is currently located; (2) If the called party is a legal subscriber of the ring back tone service in the CDMA mobile communication system, then the service control point (SCP) issues the called party's connection number and the ring back tone service server to the calling mobile switching center (RBTS) continuation number; (3) The calling mobile switching center routes the call to the mobile switching center where the called party is currently located according to the called party's connection number; (4) calling mobile switching center, according to the connection number of ring back tone service server, call routing is to described ring back tone service server, sends ring back tone signal to calling party by ring back tone service server; (5) If the called party answers the call, cut off the route between the calling mobile switching center and the ring back tone service server, and continue the call between the calling party and the called party. 2. The method according to claim 1, characterized in that, in the step (2), specifically comprising the following steps: (2-1) The calling mobile switching center sends a message to the called home location register to obtain the information of whether the called party is a ring back tone service subscriber; (2-2) After receiving the information that the called party is a subscriber returned by the called home location register, the calling mobile switching center sends an authentication request to the service control point, and the service control point checks the legality of the called party authentication, and when the authentication is qualified, the calling party's connection number and the ringback tone service server (RBTS) connection number are issued to the calling mobile switching center at the same time. 3. The method according to claim 2, characterized in that, in the step (2-1), the calling mobile switching center sends a LOCREQ message to the called home location register by triggering the Mobile_Termination trigger, so as to obtain the Information about whether the calling party is a ring back tone service subscriber; the called home location register returns corresponding information according to whether the called party is a subscriber. 4. The method according to claim 3, characterized in that, in said step (2-2), after receiving the information that the called party is a subscriber returned by the called home location register, The calling mobile switching center sends an authentication request to the service control point by triggering the Initial_Termination trigger; Then, the calling mobile switching center triggers the Advanced_Termination trigger, sends the ANLYZD message to the service control point, and receives the message returned by the service control point. 5. The method according to any one of claims 1-4, wherein the calling party can be a fixed telephone network user or a GSM mobile user, and correspondingly, the calling mobile switching center is a CDMA mobile A gateway mobile switching center (GMSC) in the communication system; the calling party may also be a CDMA mobile user, and correspondingly, the calling mobile switching center is a mobile switching center (MSC) in the CDMA mobile communication system. 6. The method according to any one of claims 1-4, characterized in that the predetermined ring back tone signal is selected by the called user and sent to the ring back tone service server. 7. The method according to claim 6, wherein the predetermined ring-back tone signal is music, a greeting voice, or a sound signal with advertisement content set by the called user. 8. The method according to any one of claims 1-4, characterized in that, in the step (3), the calling mobile switching center first starts from the called home location register according to the connected number of the called party. (HLR) obtains its current roaming number, and then routes the call to the mobile switching center where the called party is currently located according to the roaming number. 9. The method according to any one of claims 1-4, characterized in that, in said step (4), the ring back tone service server sends a predetermined ring back tone signal to the calling mobile switching center earlier, Then the calling mobile switching center forwards the ring back tone signal to the calling party. 10. The method according to any one of claims 1-4, characterized in that, in the step (5), if the called party answers the call, the calling mobile switching center and the ring-back tone are first cut off. The routing between the service servers stops sending the ring-back tone signal; then the caller and the called call are continued, and the routing between the calling and called mobile switching centers is maintained until the calling and called end the call.

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