QGR Processing Flow
The following is the QGR processing logic at UPF.
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On receiving a IE ‘Qos-Group-Of-Ruledef', search for the QGR in static configuration. For each ruledef or group-of-ruledef in QGR, look up for its corresponding PDR and update the FAR and QER list with the received QGR FAR and QER IDs.
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For each ruledef or group-of-ruledef PDR on UPF, associate high priority QGR’s FAR-ID and QER-ID.
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Maintain QGR map at both SMF and UPF. It consists of QGR name, precedence, QER-ID, and FAR-ID. Use QGR map for recovery and lookup whenever required.