GPRS Default Bearer Tracking via PCRN Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
GPRS networks lack a mechanism for managing default bearers, which is essential for efficient Quality of Service (QoS) management and charging control, as they do not specify how to identify or handle default bearers.
Innovation Solution
A method is introduced for a Policy and Charging Rules Node (PCRN) to identify and manage default bearers in GPRS networks by receiving request messages, determining the existence of bearers with no service data flows, and designating a new bearer as a default bearer, allowing tracking and modification of default bearers during QoS changes or other trigger events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If GPRS networks use explicit bearer management for flow negotiation, then flow control is achieved, but default bearer identification and management capability is lost
Solution Approach 1:
The patent applies universality by enabling the PCRF to perform multiple functions: it continues to handle explicit flow negotiation while simultaneously identifying and managing default bearers. The PCRF uses the existing bearer identification mechanisms to serve dual purposes - managing both service data flows and default bearers, thereby adding versatility to the existing GPRS bearer management system without requiring separate dedicated mechanisms.
2Device complexity
If GPRS networks do not have default bearer concept, then network simplicity is maintained, but QoS management flexibility is reduced
Solution Approach 1:
The patent applies parameter changes by modifying the bearer identification parameters used by the PCRF. Instead of relying solely on explicit flow negotiation parameters, the PCRF changes its approach to identifying default bearers by looking for bearers without associated service data flows. This parameter-based distinction allows the network to maintain simplicity while gaining QoS management flexibility through software-based default bearer identification.
3Adaptability or versatility
If a new bearer is established without service data flow request, then default bearer can be created, but network resources are consumed
Solution Approach 1:
The patent applies self-service by enabling the PCRF to automatically identify and manage default bearers without requiring explicit service data flow requests. The PCRF monitors existing bearers and autonomously determines which ones should be treated as default bearers based on their lack of associated service data flows. This self-service mechanism allows default bearer management to occur automatically, reducing the need for additional network resource allocation while maintaining the capability to create and manage default bearers.
Data Source
AI summary
The invention is directed to providing a method and apparatus for managing and tracking default bearers in an Internet Protocol Connectivity Access Network (IP-CAN) session of a General Packet Radio Service (GPRS) network while observing the requirements of the GPRS specifications.