Totogi Charging-as-a-Service for On-Premises 4G/5G
Publication date: November 16, 2022 (Diagram history)
With this architecture, you can connect your on-premises 4G/5G network to the Totogi Charging-as-a-Service engine on AWS. Totogi is an AWS-native multi-tenant 4G/5G charging engine and plan-design tool that enables telecom operators to connect and monetize their core network. The solution uses AWS Direct Connect, Amazon Elastic Compute Cloud Auto Scaling, and Amazon DynamoDB.
Totogi Charging-as-a-Service diagram
The following steps describe the charging flow and network connectivity for this architecture:
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Connect 4G/5G network devices through the Radio Access Network (RAN) to the telco data center.
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Register the subscriber through the core network control plane over the N2 interface for 5G and S1 for 4G subscribers.
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Validate 4G/5G charging over N40 (5G REST) and Gy (4G Diameter) towards the multi-tenant Totogi charging engine on AWS.
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Connect to AWS through AWS Direct Connect to AWS Transit Gateway in the Amazon VPC that hosts the tenant Totogi charging engine.
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Deploy the Diameter adapter on Amazon EC2 Auto Scaling to transform requests and responses between 5G REST and 4G Diameter protocols.
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Direct 5G REST requests to decision engines through the Network Load Balancer. Get the tenant ID from the Amazon Cognito access token.
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Handle the rating request on the Amazon EC2 Auto Scaling instance decision engine. Look up balances and rating rules in DynamoDB. Partition data by tenant ID and subscriber ID.
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Customize the handling of notifications and event detail records (EDRs) by using Amazon EventBridge and Amazon Simple Storage Service buckets.
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Deliver quotas from the charging engine to validated subscribers for the user session.
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Allow subscribers to access data and voice services over the customer network based on the provisioned plan and available credit in Totogi Charging-as-a-Service.
Further reading
For additional information, see the following resources:
Diagram history
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| Change | Description | Date |
|---|---|---|
Initial publication | Reference architecture diagram first published. | November 16, 2022 |
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