Control Session Release for Non-Modifiable PCC Rules
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Solution Overview
Problem
In mobile networks, the continuous monitoring of communication sessions for potential updates leads to unnecessary resource usage, particularly in cases where the quality of service (QoS) and charging rules do not change, such as in M2M communications with unlimited-volume or unlimited-time offerings, resulting in high memory and processing power consumption.
Innovation Solution
A method is introduced where a control entity determines the status of control rules for a communication session, indicating whether they are modifiable or non-modifiable, and transmits this status to the gateway, allowing for the release of the control session if rules are non-modifiable, thereby freeing up resources and minimizing unnecessary monitoring and updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control session is maintained for all communication sessions until release, then the billing accuracy and session monitoring are ensured, but the memory usage and processing power consumption increase unnecessarily
Solution Approach 1:
The patent changes the state parameter of the control session from 'maintained' to 'released' based on the modifiability status of PCC rules. When PCC rules are determined to be non-modifiable during a communication session, the control session is released early, transforming the system state from continuous monitoring to resource release, thereby reducing processing power consumption while maintaining billing accuracy for sessions that require it
Solution Approach 2:
The patent segments the communication sessions into two categories: those with modifiable PCC rules and those with non-modifiable PCC rules. By applying different control session management strategies to each segment (maintain for modifiable, release for non-modifiable), the system resolves the contradiction by ensuring reliability only where necessary while reducing energy consumption where possible
2Adaptability or versatility
If the control session is maintained for all communication sessions until release, then the session updates and rule modifications are supported, but the memory usage increases unnecessarily
Solution Approach 1:
The patent changes the memory state parameter from 'control session stored' to 'control session released' based on the modifiability status of PCC rules. For sessions with non-modifiable rules, the system transitions to a state where no control session context is retained, thereby reducing memory usage while preserving session update capability for sessions that require it
Solution Approach 2:
The patent divides communication sessions into segments based on PCC rule modifiability characteristics. Sessions with non-modifiable rules are segmented into a category where control sessions are released, freeing memory resources, while sessions with modifiable rules remain in a category where control sessions are maintained to support future updates
3Reliability
If continuous monitoring of communication sessions is performed, then the event detection and rule updates are ensured, but the processing power consumption increases
Solution Approach 1:
The patent changes the monitoring activity parameter from 'continuous monitoring' to 'no monitoring' based on the modifiability status of PCC rules. When PCC rules are determined to be non-modifiable, the system transitions from an active monitoring state to an inactive state, eliminating unnecessary processing power consumption while maintaining event detection accuracy for sessions where monitoring is still required
Data Source
AI summary
A method for establishing at least one control rule for a communication session between a packet communication network and a mobile terminal linked to a mobile network, referred to as a user session, which is carried by a connection between the mobile terminal and a gateway of the mobile network. The gateway is connected to the packet communication network, and a control session is carried by a connection between the gateway and a control entity of the mobile network. The method is implemented by the control entity.