Network Repository for Mobile Data Compression
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Solution Overview
Problem
Existing data compression solutions in mobile communication networks are inefficient due to mobile terminal mobility, which causes the relearning phase and reduces compression efficiency, especially when the identity of the de-compressor changes, leading to delays and less efficient data transmission.
Innovation Solution
A method where a node between the mobile terminal and the mobility anchor point determines and stores compression information, such as signatures and byte patterns, in a network repository, allowing subsequent nodes to retrieve this information instead of repeating the learning phase, thus enabling efficient compression and decompression without the need for continuous relearning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If compression information is determined and stored in a network repository, then compression efficiency is improved and learning phase duration is reduced, but device complexity increases due to the need for network repository integration
Solution Approach 1:
A network repository is introduced as an intermediary component that stores compression information (signatures and byte patterns) learned during the initial learning phase. This repository acts as a shared memory between different network nodes, allowing them to retrieve previously learned compression information without repeating the learning process, thus improving compression efficiency while managing complexity through centralized information storage.
Solution Approach 2:
The system performs the learning phase preliminarily to establish compression information before actual data compression operations begin. By completing the learning phase in advance and storing the results in the network repository, the system avoids repeated learning when mobile terminals move between different network nodes, thereby improving productivity during the main operation phase.
2Loss of time
If compression information is shared across network nodes, then data transmission continuity is improved and delays are reduced, but loss of information increases due to mobility-related identity changes
Solution Approach 1:
The system implements feedback mechanisms where network nodes send notifications to the network repository about learned compression information. This feedback loop ensures that compression information is updated and propagated to relevant nodes, maintaining its validity even as mobile terminals move between different network segments, thus preventing information loss while enabling continuous data transmission.
Solution Approach 2:
The network repository serves multiple functions: it stores compression information, manages mobility-related identity changes, and provides this information to various network nodes as needed. This multi-functional approach allows the system to handle both data transmission continuity and information validity management through a single unified structure.
3Adaptability or versatility
If the learning phase is repeated for each mobile terminal movement, then adaptability to mobility is improved, but productivity decreases due to time-consuming relearning
Solution Approach 1:
Instead of performing the learning phase anew for each mobile terminal movement, the system copies previously learned compression information from the network repository. This copying approach allows the system to adapt to mobility scenarios without repeating the time-consuming learning process, thereby maintaining high productivity while still adapting to changing network conditions.
Solution Approach 2:
The system dynamically updates and retrieves compression information from the network repository based on mobile terminal movement events. This dynamic approach allows the system to adapt to mobility scenarios by updating existing information rather than restarting the learning phase, thus maintaining both adaptability and productivity.
Data Source
AI summary
A method and apparatus for handling data compression in a mobile communication network. A node located between a mobile terminal and a mobility anchor point determines compression information relating to data transferred between the node and the mobile terminal. The node then sends the compression information to a network repository node for storage and retrieval by a further node in an event that subsequent mobility of the mobile terminal leads to transferring data between the mobile terminal and the further node.