PCRF Bearer Priority Information for Service Differentiation
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Solution Overview
Problem
Existing communication systems cannot handle services discriminatively based on policy context when different services require the same Quality of Service (QoS) level, leading to inadequate resource allocation and prioritization.
Innovation Solution
A service processing method and system that includes a Policy Control and Charging Rules Function (PCRF) entity generating bearer priority information from policy context information, such as service type, user priority, and custom-defined priorities, and sending this information to a Policy and Charging Enforcement Function (PCEF) entity to handle services accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If services with the same QoS level are handled uniformly, then system simplicity is maintained, but service differentiation and resource prioritization are lost
Solution Approach 1:
The patent segments service handling by introducing multiple priority levels (first priority, second priority, third priority) within the same QoS level. Services are divided into different priority groups based on policy context information, allowing differentiated resource allocation without fundamentally changing the QoS framework structure.
Solution Approach 2:
The patent applies local quality by assigning different priority attributes to specific services within the same QoS level based on their policy context. Each service receives localized priority treatment (first, second, or third priority) according to its specific requirements, while maintaining overall system uniformity.
2Reliability
If bearer priority information is generated and transmitted for all services, then service prioritization is achieved, but signaling overhead and processing load increase
Solution Approach 1:
The patent implements partial action by generating bearer priority information only when necessary for service differentiation. Not all services require priority information - only those where policy context indicates differentiating needs. This reduces the quantity of priority signaling compared to universal priority assignment.
Solution Approach 2:
The patent changes the parameter of priority assignment from binary (priority/non-priority) to multi-level (first, second, third priority) based on policy context. This allows more nuanced resource allocation while maintaining efficient signaling by only applying priority where policy context warrants it.
Data Source
AI summary
A service processing method, a service processing system, and a PCRF entity are disclosed to overcome this defect in the prior art: The prior art is unable to handle services discriminatively according to the policy context information when different services require the same QoS level. The method includes: receiving bearer priority information from a PCRF entity, where the bearer priority information includes: bearer priority information of a service data stream, bearer priority information of an IP-CAN session, and/or bearer priority information of an IP-CAN bearer; and handling services according to the bearer priority information. In the embodiments of the present disclosure, the policy context information is converted into bearer priority information so that the PCEF handles services according to the bearer priority information. In this way, different services that require the same QoS level are handled discriminatively according to the policy context information.