You have insufficient data remaining for this month...

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You are immersed in watching TV series, live broadcasts, and short videos, and suddenly you receive a reminder text message:

"Dear user, hello! Your remaining traffic for this month is insufficient..."

How is this text message generated? What device obtains our package volume, counts our daily usage, and allows us to receive text message notifications in time when the data flow is insufficient?

Look down with a question mark and you will find the answer you want~~

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In the Internet age, many people have purchased large-value data packages so that they can study and entertain themselves online anytime and anywhere. However, when our Internet data usage reaches the package amount, we will receive a text message notification and feel that the Internet speed has slowed down. In fact, this is an operating strategy of the operator.

Operators use FUP (Fair Usage Policy) to develop monthly data packages. By limiting the user's data traffic within a certain period, reminding the user in real time when the usage reaches the threshold, and reducing the access rate when the usage exceeds the limit, a small number of users are prevented from over-occupying network resources, ensuring the Internet experience of most users, and allowing more people to enjoy the Internet fairly.

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RCP (Resource Control Platform) is the protagonist of the fair use policy. Of course, without the supporting roles, there is no brilliance of the protagonist! Therefore, when introducing RCP, we cannot leave out PCEF (Policy and Charging Enforcement Function).

If RCP is compared to a policy decision maker, then PCEF is its "right hand" - policy executor. As a resource control center, RCP works together with PCEF to complete user usage accumulation and policy control.

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So how does RCP obtain user usage and when does it remind users that their data flow is insufficient?

RCP sends monitoring quotas to PCEF based on the user's package volume and cumulative usage. When the user uses up the monitoring quota, PCEF reports the user's usage information to RCP. RCP accumulates usage. If it is found that the usage control threshold configured in the policy is exceeded during the accumulation process (such as the control threshold is 70%, 80% and 100% of the package volume), it can decide whether to reduce the user's access rate based on the accumulated value of these usages and decide whether to notify the user by SMS.

There are two ways to issue quotas: fixed value and balance.

• Fixed value mode: RCP sends a fixed monitoring quota each time.
• Balance mode: The monitoring quota is calculated based on the actual usage value and the usage control threshold. In the balance mode, RCP can accurately control the issuance of monitoring quotas, so that the accumulated usage can accurately reach the usage control threshold conditions at all levels.

In actual usage scenarios, a combination of fixed value and balance is often used to obtain monitoring quotas. The system compares the monitoring quota calculated by the balance method with the fixed value and takes the smaller value as the monitoring quota to be issued.

Some people say that there is not enough data? That doesn't exist! My monthly package has enough data. What will happen to the remaining data at the end of the month? If you are rich, please continue reading~~

The remaining usage of the package purchased by the user in the previous billing period is transferred to the next billing period according to certain principles. This part of the remaining usage transferred to the next billing period is called the rollover quota that can be used in the next billing period. According to the different operating strategies of operators, RCP can provide flexible refund algorithms and quota usage methods. There are two common refund modes:

• The remaining usage of the billing period will be refunded in proportion: for example, 100% of the remaining traffic of the previous month's package will be refunded every month.
• Fixed value refund: For example, a fixed value refund of 1GB of traffic is given for a specified monthly package.

At the same time, in each billing period, there is a fixed quota for the package, which is the monthly package volume signed by the user. RCP can specify that the fixed quota of the package should be used first, or the rollover quota of the package should be used first.

• Prioritize the rollover quota of a package: The fixed quota of a package can be used only after the rollover quota of the package has been used up.
• Prioritize the fixed quota of a package: You can use the rollover quota of a package only after the fixed quota of a package has been used up.

Having written this, the editor quietly opened his phone to check the balance of his package. The remaining usage during the billing period and the rollover quota of the priority package will be refunded at a 100% ratio.

So, what kind of return model does your package adopt? What kind of usage principle?

RCP has played an important role in implementing fair usage policies, preventing a small number of users from excessively occupying network resources, and ensuring the Internet experience of most users.

After reading this, have you found the answer to the question at the beginning? Do you have a better understanding of the traffic that accompanies you day and night?