Method and system for controlling offline billing bill threshold based on cups protocol

Abstract

The embodiment of the present application provides a method and system for controlling the offline billing bill threshold based on the CUPS protocol. In the method, after the CP creates a session, the message sent to the UP carries the maximum number of charging condition changes, and the UP reports the charging information to the CP according to the subscription conditions or the instant query request sent by the CP, and calculates the number of charging condition changes , if the calculated number of times is less than the maximum number of billing condition changes, continue to accumulate the used traffic on the basis of the existing accumulated used traffic; if the calculation is equal to the maximum number of billing The billing information and the number of traffic containers in the bill are cleared. The technical solution provided by the embodiment of the present application can reduce the extra signaling interaction between the CP and the UP due to the update of the threshold, thereby also avoiding the result of offline billing billing caused by the delay of the update message interaction between the CP and the UP Threshold Exceeded Questions.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a method and system for controlling the threshold value of offline billing bills based on the CUPS protocol. Background technique [0002] In the network architecture of the 3GPP protocol R14 version, EPC gateways (including SGW (Serving Gateway, service gateway), PGW (Public Data Network Gateway, data network gateway) and TDF (Traffic Detection Function, traffic detection function)) are split into control planes The network element (Control Plane, CP) and the user plane network element (UserPlane, UP), the function of the original EPC gateway is completed by the cooperation of the CP and the UP. The part of the 3GPP protocol for this network architecture is also called the CUPS protocol. [0003] The CP interacts with the UP through the Sx interface to complete functions such as data forwarding, policy control, and billing of the original EPC gateway. Amon...

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Problems solved by technology

[0016] However, there are following problems in the existing method of forcibly updating the traffic threshold based on the billing information reported by the UP: (1) CP and UP must update the traffic threshold through additional message interaction (the same is true for the time threshold); (2) If the threshold is not updated in time, the charging result of the offline billing bill will exceed the threshold, for example figure 1 In the process shown, if the traffic used by the UP side is 9M instead of 3M when the tariff switching time point arrives, when the CP notifies the UP to update the traffic threshold to 1M, the UP may have used 2M traffic again, so the currently open Even if the offline billing bill is closed immediately, the traffic billing result in the offline billing bill will be 9M+2M=11M, which will cause an error in the subsequent processing of the offline billing bill

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