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MATRIXX 5G Integration
Charging Function
This section describes the Charging Function components and how to deploy and configure them.
CHF Standalone
CHF Standalone is an SBA Gateway implementation of the Charging Function (CHF) Network Function that uses only Backstop Processing to respond to all messages. CHF Standalone can be used to deploy and configure multiple Charging Function components, including:

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MATRIXX 5G Integration
- About MATRIXX 5G Integration
  MATRIXX 5G Integration describes how to implement the Service-Based Architecture (SBA) Gateway and messaging. In addition, this document provides information about security configuration (secured and not secured).
- MATRIXX SBA Gateway
  This section describes the Service Based Architecture (SBA) Gateway, which provides the framework to build 5G network function (NF) services based on 3GPP technical specifications.
- Charging Function
  This section describes the Charging Function components and how to deploy and configure them.
  - CHF Standalone
    CHF Standalone is an SBA Gateway implementation of the Charging Function (CHF) Network Function that uses only Backstop Processing to respond to all messages. CHF Standalone can be used to deploy and configure multiple Charging Function components, including:
    - Installing CHF Standalone
      Before installing CHF Standalone, see the discussion about installing cloud native MATRIXX in MATRIXX Installation and Upgrade.
    - Configuring CHF Standalone Properties
      After initial deployment of CHF Standalone, you can customize the configuration.
  - CHF Diameter Adapter
    CHF Diameter Adapter is a MATRIXX component that converts 5G Charging Function (CHF) interface messages to 4G Diameter messages and then sends the Diameter messages to a third-party online charging system.
  - NRF Client
    NRF Client updates an external NRF on the availability of an NF service. This mirrors the default behavior of SBA Gateway. NRF Client uses the Kubernetes API to find the running pods of the NF service and queries their metrics to discover the current CPU capacity and CPU load. The total CPU capacity and average CPU load are then reported back to the NRF by updating the nfProfile it holds for the service.
  - CHF Proxy
    CHF Proxy is a MATRIXX component that routes PCF/SMF 5G network traffic to 5G charging interfaces.
  - Common Component Configuration Properties
    This section describes properties in the MATRIXX common helm chart for CHF Standalone, CHF Diameter Adapter, NRF Client, and CHF Proxy.
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Glossary

CHF Standalone

CHF Standalone is an SBA Gateway implementation of the Charging Function (CHF) Network Function that uses only Backstop Processing to respond to all messages. CHF Standalone can be used to deploy and configure multiple Charging Function components, including:

CHF Diameter Adapter
NRF Client
CHF Proxy

For more information about backstop processing, see the discussion about backstop processing. For more information about CHF Diameter Adapter, see the discussion about CHF Diameter Adapter. For more information about NRF Client, see the discussion about NRF Client. For more information about CHF Proxy, see the discussion about CHF Proxy.