Method for avoiding metering error of prepayment service

Abstract

A method of avoiding charge error on prepaid service includes obtaining initial call detailed record CDR of SCP and SSP by toll ticket calibration entity after service is disconnected when link between SCP and SSP is fault, obtaining final CDR of SSP by toll ticket calibration entity according to initial CDR of SCP and SSP, carrying out follow up service statistics and analysis by only utilizing this time of user account number in operation account system according to final CDR of SSP.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for avoiding charging errors for prepaid services when a link between a service control point (Service Control Point, SCP) and a service switching point (Service Switching Point, SSP) fails. method. Background technique [0002] In a mobile communication system, an important intelligent service is a prepaid service of a mobile station (Mobile Station, MS). A prepaid service user (hereinafter referred to as a user) can activate and deactivate a prepaid service at any time. During the activation of the prepaid service, the user's service fee is deducted from the user's prepaid account by the prepaid platform SCP. During the deactivation period of the prepaid service, the user conducts the postpaid service, and the service fee is deducted from the user's postpaid account by the postpaid platform account system. [0003] The process of charging the prepaid servic...

AI Technical Summary

Problems solved by technology

[0024] However, in actual service implementation, it often happens that the SSP generates the wrong service type identifier in the CDR list. The reason for this abnormal situation is that the link between the SSP and the SCP fails. Here and the following The above-mentioned faults include various reasons that lead to unreliable link quality between SSP and SCP, such as link disconnection, link congestion, message sequence error, signaling point failure, and network transmission delay, etc.

When the SSP generates an error in the service type identification in the CDR detailed list, it will cause the system to charge the prepaid service incorrectly.

For example, in service implementation, if the SSP cannot receive the prepaid service identifier sent by the SCP, then the SSP cannot determine whether the service is a prepaid service or a postpaid service, and will not fill in the prepaid service in the CDR detailed list generated by itself. In this way, the accounting system cannot analyze the prepaid service identifier when analyzing the CDR of the SSP, and considers that this service is not a prepaid service but a postpaid service. According to the CDR detailed list from the SSP Debiting a user's postpaid account for which the SCP has already debited that user's prepaid account, resulting in redundant billing to the detriment of the user

[0025] In addition, due to the link failure between the SSP and the SCP, the service duration in the CDR detailed list generated by the SCP may be inaccurate, resulting in inaccurate charging of prepaid services

For example, in the above process, due to the blockage of the link between the SSP and the SCP, when the SSP starts recording the service duration and sends out a TANSWER message, the SCP does not receive the TANSWER message, so it will not start recording the service duration. In the subsequent time, Even if the SCP actively performs failure recovery processing, that is, when it actively detects that the call is in progress, starts charging the user, and starts recording the service duration, the service duration recorded by the SCP will still be less than the actual call duration of the user, which is recorded by the SSP. Long business hours lead to undercalculation of fees for users and damage the interests of operators

[0026] Therefore, there are billing errors and inaccurate problems in the existing charging methods for prepaid services, which greatly hinder the normal operation of services

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