WO2009105920A1

WO2009105920A1 - Charging method and system

Info

Publication number: WO2009105920A1
Application number: PCT/CN2008/000692
Authority: WO
Inventors: 沈景悦; 关先锋; 杨明贵
Original assignee: 中兴通讯股份有限公司
Priority date: 2008-02-27
Filing date: 2008-04-03
Publication date: 2009-09-03
Also published as: CN101237619A

Abstract

A charging method and system are disclosed. The method involves the following steps: the mobile switch center emulation arranges the sending period of a dual tone multiple frequency signal, and periodically indicates a media gateway to send the dual tone multiple frequency signal to a user terminal based on the arranged sending period; responding to the indication of the mobile switch center emulation, the media gateway sends the dual tone multiple frequency signal to the user terminal; and the user terminal charges based on the number of the received dual tone multiple frequency signals. With the invention, it can achieve the charging of the user terminal by sending the dual tone multiple frequency signal on media side.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a charging method and system. BACKGROUND In a code division multiple access (CDMA) network, a network element is mainly composed of: a mobile switch center emulation (MSCe), and a base station controller (base station controller, Referred to as BSC) and Mobile Termination (MT). When the mobile terminal is used as a public telephone, the call charge of the call needs to be displayed in real time on the mobile terminal. The typical traditional charging method is the pulse charging method. The implementation of the impulse charging is controlled by the MSCe, the BSC, and the MT through the signaling control plane flashing message (FLASH, which is called charging in the charging), and the specific steps are as follows:

S102, the MSCe determines the time interval for sending the FLASH message according to the configured rate information, and sends a FLASH message to the BSC through the control plane when the consumption granularity reaches a new granularity during the user call.

S104: The BSC identifies a FLASH message that is a monthly charging and sends a FLASH message to the mobile terminal, and the mobile terminal performs charging according to the number of pulses. In the above mode, the rate information can only be controlled at the end office, and billing under the control of the gateway/gateway cannot be realized. For example, the inter-office call in FIG. 2 is as follows: S202, the calling user is at MSCel, and the called user is at MSCe2, and MSCel sends an Initial Address Message (abbreviation ΙΑΜ) to MSCe2;

S204, the called user rings, and the MSCe2 sends an Address Complete Message (ACM) to the MSCel.

S206, the called user answers, and the MSCe2 sends a response message (ANM) to the MSCel; S208, MSCel> according to the configured rate information, determining the time interval for sending the FLASH message, and during the user call, when the consumption granularity reaches a new granularity, sending a FLASH message to the BSC through the control plane;

S210, the BSC identifies the FLASH message that is a pulse charging and sends a FLASH message to the mobile terminal, and the mobile terminal performs charging according to the number of the pulses. Because the ISDN User Part (ISUP) interoffice protocol cannot support the transmission of rate information, that is, the transfer of rate information is not supported in ACM and ANM, the rate information of MSCe2 cannot be transmitted to MSCel, so this pulse The charging method can only be charged by the MSCel connected to the mobile terminal, and the charging of the adjacent switching office MSCe2 cannot be realized. SUMMARY OF THE INVENTION In view of one or more of the problems described above, the present invention provides a charging method and system for enabling charging of a user terminal by transmitting a dual tone multi-frequency signal on a media side. According to the charging method of the embodiment of the present invention, the following steps are performed: The mobile switching center simulates the sending period of the dual-tone multi-frequency signal, and periodically instructs the media gateway to send the double to the user terminal according to the configured sending period. The multi-frequency signal; the media gateway transmits the dual-tone multi-frequency signal to the user terminal in response to the indication of the mobile switching center emulation; and the user terminal performs charging according to the number of received dual-tone multi-frequency signals. The mobile switching center emulation configures the sending period according to the configured rate information. The mobile switching center instructs the media gateway to send the dual tone multi-frequency signal to the user terminal by modifying the terminal request command. The media gateway sends a modified terminal response to the mobile switching center emulation before or after transmitting the dual tone multi-frequency signal to the user terminal. The above user terminal is a mobile public telephone user terminal. The charging system according to the embodiment of the present invention includes: a sending indication unit, located on the emulation side of the mobile switching center, configured to configure a sending period of the dual-tone multi-frequency signal, and periodically instruct the media gateway to the user terminal according to the configured sending period. Sending a dual-tone multi-frequency signal; the sending execution unit is located at the media gateway side, and is configured to send a dual-tone multi-frequency signal to the user terminal in response to the indication of the sending indication unit; the charging execution unit is located at the user terminal side, and is configured to receive The number of dual-tone multi-frequency signals is charged to 4亍. The sending indication unit configures the sending period according to the configured rate information. The sending indication unit instructs the media gateway to send the dual tone multi-frequency signal to the user terminal by modifying the terminal request command. The transmitting and executing unit transmits a tampering terminal response to the transmitting instructing unit simultaneously with or after transmitting the dual tone multi-frequency signal to the user terminal. The above user terminal is a mobile public telephone user terminal. With the present invention, the charging of the user terminal can be realized by transmitting the dual tone multi-frequency signal on the media side. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a flow chart of implementing pulse charging in the prior art; FIG. 2 is a flow chart of the prior art, where the original pulse charging does not support the inter-office charging; FIG. 3 is a first embodiment according to the present invention. FIG. 4 is a flowchart showing an implementation of a charging method according to a second embodiment of the present invention; FIG. 5 is a block diagram of an inter-office charging according to an embodiment of the present invention; A block diagram of a billing system in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention aims to implement terminal charging by instructing the MGW to transmit a Dual Tone Multiple Frequency (DTMF) signal to a user terminal through the MSCe. Among them, the DTMF signal is a coding method in which 16 characters of 0 to 9, A~D, and */E, #/F on the dial are represented by 8 frequencies of the audio range. The eight frequencies are divided into two groups, a high frequency group and a low frequency group, respectively, as a column frequency and a horizontal frequency. The signal of each character is superposed by sinusoidal signals of two frequencies from the column frequency and the horizontal frequency. The frequency combination method is shown in the following table: f/Hz 1209 1336 1477 1633

697 1 2 3 A

770 4 5 6 B 852 7 8 9 C

941 * 0 D where the first line represents the high frequency group, the first column represents the low frequency group, and the intersection of the row and column corresponds to the corresponding DTMF signal. Since the user terminals such as these numbers of DTMF signals 1 to 9, *, # can be dialed out by pressing the button on the mobile phone panel, if the DTMF signals of these frequencies are used, it is easy to conflict with the called user's dialing, and can be based on actual needs. Any one of the signals A to D is used as the charging DTMF signal, as long as the MSCe/MGW and the mobile public telephone user terminal reach an agreement. With the DTMF tones, the user hears a "哔哔" tone, which also serves to remind the user of the billing cycle. If the user does not wish to hear the sound, the tone of the frequency can be filtered out by the terminal. Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 3 is a flow chart showing an implementation of a charging method according to a first embodiment of the present invention. As shown in Figure 3, the charging method package ^ ^ the following steps:

S302, the MSCe determines the time interval for sending the DTMF according to the configured rate information, and periodically instructs the Media Gateway (MGW) to send the DTMF ^: number to the mobile public telephone user terminal that needs to be charged. ;

S304. The MGW sends a DTMF 4 message to the mobile public telephone user terminal in response to the indication of the MSCe.

S306, the mobile public telephone user terminal has a DTMF 4Η function, and uses the detected number of DTMF signals for charging. 4 is a flow chart showing an implementation of a charging method according to a second embodiment of the present invention. As shown in FIG. 4, the charging method includes the following steps: S402: The MSCe starts timing from the called response according to the configured rate information, and modifies the terminal request command (modify, MOD for short) every time a certain fee is consumed. A terminal on the MGW close to the user side of the mobile public telephone plays DTMF tones, and the frequency of the DTMF tones is played according to an audio frequency rate shown in the above table;

S404: After receiving the MOD, the MGW puts a DTMF tone to the terminal connected to the mobile public telephone user, and returns a modified terminal response to the MSCe. The mobile terminal detects the DTMF tone in the voice stream. Each time a DTMF tone is detected, the consumption fee is accumulated once, thereby achieving the purpose of synchronous charging with the switching side. Since the DTMF signal can be transmitted losslessly on the media side, the end office and other adjacent exchanges can periodically send DTMF tones to the terminals connected to the mobile public users according to the rate of the local office. Different exchanges can send different DTMF tones. The number of DTMF tones is separately charged. As shown in Figure 5, the dashed line represents the delivery of the signaling message and the solid line represents the transmission of the media stream. MSCe2 can instruct the MGW2 of the local office to send DTMF to the terminal connected to the MT according to the local rate. The MSCel can also indicate that the MGW1 of the local office sends the DTMF tone to the terminal connected to the MT according to the local rate. The two MSCe can send DTMF of different frequencies. The number of DTMF tones counted in the last mobile terminal is separately charged. Figure 6 is a block diagram of a billing system in accordance with an embodiment of the present invention. As shown in FIG. 6, the charging system includes: a sending indication unit 602, located on the emulation side of the mobile switching center, configured to configure a transmission period of the dual-tone multi-frequency signal, and periodically instruct the media gateway according to the configured sending period. The user terminal sends the dual tone multi-frequency signal; the sending execution unit 604 is located at the media gateway side, and is configured to send the dual tone multi-frequency signal to the user terminal in response to the indication of the sending indication unit; the charging execution unit 606 is located at the user terminal side. It is used for charging according to the number of received dual tone multi-frequency signals. The sending indication unit configures the sending period according to the configured rate information. The sending indication unit instructs the media gateway to send the dual tone multi-frequency signal to the user terminal by using the tampering terminal request command. The transmitting execution unit transmits a "change terminal response" to the transmission instructing unit simultaneously or after transmitting the dual tone multi-frequency signal to the user terminal. The user terminal is a mobile public telephone user terminal. In summary, the present invention proposes a A method and system for transmitting DTMF tones on a media side to implement mobile public subscriber billing. It should be noted that those skilled in the art can make several improvements without departing from the principles of the present invention. The retouching can also be applied to non-CDMA2000 networks, and these improvements and refinements should also be considered as the scope of protection of the present invention. The above description is only for the embodiments of the present invention, and is not intended to limit the present invention, and is for those skilled in the art. The present invention is susceptible to various modifications and alternatives. Any modifications, equivalents, improvements, etc., within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

A billing method, comprising the steps of:

The mobile switching center simulates the sending period of the dual-tone multi-frequency signal, and periodically instructs the media gateway to send the dual-tone multi-frequency signal to the user terminal according to the configured sending period; the media gateway is responsive to the mobile switching center Simulating an indication of transmitting the dual tone multi-frequency signal to the user terminal;

The user terminal performs charging according to the received number of the dual tone multi-frequency signals.

2. The charging method according to claim 1, wherein the mobile switching center emulation configures the transmission period according to the configured rate information.

The charging method according to claim 2, wherein the mobile switching center instructs the media gateway to send the dual tone multi-frequency signal to the user terminal by modifying a terminal request command.

The charging method according to claim 3, wherein the media gateway sends a modification to the mobile switching center simultaneously or after transmitting the dual tone multi-frequency signal to the user terminal. Terminal response.

The charging method according to any one of claims 1 to 4, wherein the user terminal is a mobile public telephone user terminal.

6. A billing system, characterized in that

The sending indication unit is located on the emulation side of the mobile switching center, configured to configure a sending period of the dual-tone multi-frequency signal, and periodically instruct the media gateway to send the dual-tone multi-frequency signal to the user terminal according to the configured sending period;

a sending execution unit, located at the media gateway side, configured to send the dual tone multi-frequency signal to the user terminal in response to the indication of the sending indication unit;

The charging execution unit is located at the user terminal side, and is configured to perform charging according to the received number of the dual tone multi-frequency signals.

The charging system according to claim 6, wherein the transmission instructing unit configures the transmission period according to the configured rate information.

8. The charging system according to claim 7, wherein the sending indication unit instructs the media gateway to send the dual tone multi-frequency signal to the user terminal by modifying a terminal request command.

9. The charging system according to claim 8, wherein the transmission execution unit further transmits to the transmission instructing unit while transmitting the dual tone multi-frequency signal to the user terminal. Change the terminal response.

The charging system according to any one of claims 6 to 9, wherein the user terminal is a mobile public telephone user terminal.