Terminal Compression Mode Negotiation for VoLTE ECN
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Solution Overview
Problem
In VoLTE communication, the high-compression mode cannot be effectively applied in ECN-supporting environments due to the assumption that the IP header is not contained, leading to inefficient congestion notification and wastage of radio resources.
Innovation Solution
A terminal and base station configuration that acquires application compatibility information, negotiates the utilization of compatible applications, and determines a suitable compression mode based on these negotiations, allowing for the appropriate application of a high-compression mode even in ECN-supporting environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a high-compression mode is applied in VoLTE communication, then the compression ratio is improved and radio resources are saved, but ECN-based congestion notification cannot be properly performed because the IP header is assumed to be not contained
Solution Approach 1:
The patent applies dynamics by making the compression mode adjustable and transitionable between different states (IR, FO, SO) based on feedback information and communication conditions. The system can dynamically switch between low-compression modes that preserve ECN functionality and high-compression modes that optimize radio resource usage, resolving the contradiction between resource efficiency and notification reliability.
Solution Approach 2:
The patent changes the compression parameter (compression mode) based on the presence of ECN feedback information. When ECN information is present, the system selects a compression mode that maintains IP header compatibility for proper congestion notification. When ECN information is absent, the system can use higher compression modes to save radio resources, thus adapting the compression level to the actual communication conditions.
2Productivity
If a high-compression mode is applied, then the data transmission efficiency is improved, but the compatibility with ECN-supporting base stations is lost
Solution Approach 1:
The patent uses feedback information from the base station to determine the appropriate compression mode. The terminal receives feedback indicating whether the base station supports ECN, and based on this feedback, selects a compression mode that ensures compatibility. This feedback mechanism allows the system to adapt to different base station capabilities while maintaining optimal data transmission efficiency.
Solution Approach 2:
The patent performs preliminary determination of the compression mode based on pre-acquired application compatibility information before actual data transmission. By checking ECN support capability in advance and selecting an appropriate compression mode beforehand, the system ensures both compatibility with ECN-supporting base stations and efficient data transmission without requiring mode switching during communication.
3Adaptability or versatility
If the compression mode is frequently switched between high-compression and low-compression modes, then the adaptation to communication conditions is improved, but the communication stability is reduced
Solution Approach 1:
The patent applies beforehand cushioning by maintaining a compression mode that is compatible with ECN-supporting base stations, preventing potential communication issues before they occur. By proactively selecting a compression mode that ensures ECN functionality based on pre-acquired compatibility information, the system avoids the instability that would result from frequent mode switching while still adapting to communication conditions through feedback-based mode selection.
Data Source
AI summary
A terminal includes: an application compatibility information acquirer that acquires first application compatibility information indicating an application with which a base station located on a channel of communication with a communication partner terminal is compatible; a utilized application negotiator that negotiates with the communication partner terminal about utilization of an application, included in applications with which the terminal is compatible, that matches the application indicated by the first application compatibility information; and a compression mode determiner that determines a compression mode on the basis of a result of negotiations about the application.