Mobile Network Policy Freshness via Registration-Based Updates
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Solution Overview
Problem
In certain wireless communications networks, a policy stored by a remote unit may be outdated, and the base unit may not be aware that the policy is outdated.
Innovation Solution
Methods and apparatuses for determining mobile network policy freshness by accessing a first policy associated with a first mobile network, a first policy identifier, and a freshness parameter, and transmitting a registration message to a second mobile network if the policy is not fresh, including a first policy identifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the remote unit stores a policy locally to improve access speed and reduce network traffic, then the policy may become outdated without the base unit's knowledge, leading to compliance issues and incorrect network operations
Solution Approach 1:
The patent implements a feedback mechanism where the remote unit periodically checks policy freshness by comparing stored policy identifiers with current ones obtained from the network. When a policy becomes outdated, the system automatically triggers an update by sending a registration request to the base unit, ensuring policy reliability while maintaining local storage benefits.
Solution Approach 2:
The system performs preliminary actions by pre-storing policy information locally at the remote unit before it becomes outdated. This allows the remote unit to continue operating with valid policies until they expire, at which point the freshness check mechanism triggers an update, thus maintaining both speed and reliability.
2Reliability
If the remote unit continuously checks for policy updates to maintain freshness, then network traffic and signaling overhead increase, consuming additional energy and resources
Solution Approach 1:
Instead of continuous checking, the patent implements periodic policy freshness verification. The remote unit checks policy validity at scheduled intervals or upon specific events (such as registration requests), reducing unnecessary network communications and energy consumption while maintaining adequate policy freshness.
Solution Approach 2:
The remote unit autonomously determines whether its stored policy is still valid by comparing policy identifiers without requiring constant network verification. This self-service approach minimizes network traffic and energy consumption by only contacting the network when actually needed.
3Reliability
If the base unit is made aware of policy outdatedness to ensure compliance, then the system complexity increases requiring additional signaling protocols and processing
Solution Approach 1:
The patent extracts the policy freshness verification function from the base unit and places it at the remote unit. The remote unit independently checks whether its stored policy is still valid by comparing policy identifiers, eliminating the need for complex base unit-side verification mechanisms while ensuring compliance.
Solution Approach 2:
The patent introduces a lightweight intermediary mechanism where the remote unit acts as the intermediary for policy freshness verification. By having the remote unit independently check and report policy status through simple registration requests, the system avoids complex bidirectional verification protocols between base unit and remote unit.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for determining mobile network policy freshness. One method includes accessing a first policy associated with a first mobile network, a first policy identifier, and a freshness parameter. The method includes determining, based on the freshness parameter, whether the first policy is fresh. The method includes transmitting a registration message to a second mobile network. The registration message includes the first policy identifier in response to determining that the first policy is not fresh.