3GPP-BBF Policy Control via Outer IP Header Exchange
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Solution Overview
Problem
In the context of 3GPP and Broadband Forum (BBF) interconnection, service data flows without going through admission control in the BBF access network occupy resources intended for flows that have undergone admission control, leading to a failure of the Fixed Mobile Convergence (FMC) policy control mechanism.
Innovation Solution
A method and system where the 3GPP network entity sends outer IP packet header information to the BBF access network, enabling the BBF access network to schedule data packets matching the DSCP of the data packet, and mismatched packets are processed according to local policies, preventing resource occupation by unscheduled flows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the BBF access network schedules data packets based on DSCP marking without admission control verification, then data packet scheduling is simplified, but service data flows without admission control occupy resources intended for scheduled flows
Solution Approach 1:
The patent applies preliminary action by having the 3GPP network entity send outer IP packet header information to the BBF access network entity in advance, before data packet scheduling occurs. This allows the BBF access network entity to pre-configure scheduling rules based on the received header information, ensuring that only authorized service data flows can occupy scheduled resources while maintaining simplified scheduling operations.
2Reliability
If the 3GPP network entity sends outer IP packet header information to the BBF access network entity, then resource occupation by unscheduled flows is prevented, but network entity complexity increases
Solution Approach 1:
The patent applies the taking out principle by extracting only the necessary outer IP packet header information from the 3GPP network entity and transmitting it to the BBF access network entity. This selective extraction avoids transmitting unnecessary data, thereby preventing resource occupation by unscheduled flows while minimizing the increase in network entity complexity through focused information exchange.
3Manufacturing precision
If service data flows are marked with DSCP based on PCC rules, then QoS control is improved, but the FMC policy control mechanism fails when admission control is not performed
Solution Approach 1:
The patent applies feedback by establishing a closed-loop mechanism where the BBF access network entity receives outer IP packet header information from the 3GPP network entity, uses this information to verify admission control status before scheduling, and thereby ensures that DSCP-marked service data flows only occupy resources when proper admission control has been performed, restoring FMC policy control reliability.
Data Source
AI summary
A policy control method and system are disclosed. The method includes: a 3rd Generation Partnership Project (3GPP) network entity sending outer IP packet header information to a Broadband Forum (BBF) access network entity; and the BBF access network entity scheduling a data packet matching the outer IP packet header information according to a Differentiated Services Code Point (DSCP) of the data packet. With the above technical scheme, service data flows without going through admission control will not occupy resources of other service data flows going through the admission control.