Terminal Communication Mode Switching for Extended Radio Coverage
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Solution Overview
Problem
Extended coverage mobile networks, such as LTE-M, experience increased transmission latency and reduced communication rates due to data repetitions, leading to potential communication interruptions and hindrances in voice communication when terminals are outside nominal radio coverage.
Innovation Solution
A method for managing communication between terminals that allows transitioning from a first communication mode to a second mode, such as switching from two-way voice to one-way voice or text-based communication, based on link quality measurements and user input, with network or terminal-initiated requests to adapt communication modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the number of repetitions is increased to extend radio coverage, then the coverage area is improved, but the transmission latency increases and communication rate decreases
Solution Approach 1:
The patent implements dynamic adaptation of communication modes based on real-time link quality measurements. The system transitions between different communication modes (voice, text, etc.) according to the current radio conditions, allowing the coverage extension mechanism to respond dynamically to changing environmental conditions rather than using a fixed repetition scheme
Solution Approach 2:
The system changes communication parameters (mode of communication, repetition factors) based on measured link quality. When link quality deteriorates in extended coverage zones, the system adapts by switching to more robust communication modes or adjusting repetition factors, thereby managing the trade-off between coverage area and transmission latency through parameter optimization
2Area of stationary object
If the number of repetitions is increased to extend radio coverage, then the coverage area is improved, but the communication rate decreases
Solution Approach 1:
The system dynamically adjusts communication modes based on real-time link quality assessments. In extended coverage zones where repetition factors would normally reduce communication rate, the system adapts by switching to communication modes appropriate for the current conditions, thereby maintaining acceptable productivity levels while extending coverage
Solution Approach 2:
The system optimizes communication rate by changing parameters such as communication mode and repetition factor based on measured link quality. This allows the system to achieve extended coverage while managing the communication rate through intelligent parameter selection rather than simply increasing repetitions
3Area of stationary object
If the end-to-end latency exceeds a predetermined threshold, then the coverage extension capability is improved, but the communication reliability deteriorates
Solution Approach 1:
The system implements feedback mechanisms by continuously measuring link quality and using this information to make real-time decisions about communication mode selection. This feedback loop ensures that communication reliability is maintained by adapting to the actual radio conditions in extended coverage zones, preventing latency from exceeding thresholds that would compromise reliability
Solution Approach 2:
The system dynamically switches between communication modes based on real-time link quality measurements. This dynamic adaptation allows the system to maintain communication reliability in extended coverage zones by selecting appropriate modes that keep latency within acceptable thresholds, rather than using a static high-repetition configuration
Data Source
AI summary
A method for managing a communication set up according to a first communication mode between terminals in a telecommunications system. The method includes: obtaining, by a first terminal participating in the communication, a request to change communication mode so as to transition from the first communication mode to a second communication mode; switching the communication from the first communication mode to the second communication mode; wherein the first communication mode and the second communication mode are different communication modes in a set comprising a two-way voice communication mode, a one-way voice communication mode, and a text-based communication mode.