Wireless Data Packet Duplication for Link Stability
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Solution Overview
Problem
In vehicle communication systems, particularly in idle mode, there is a challenge in ensuring reliable data transmission and managing resource allocation to prevent unnecessary duplication transmissions and handover failures, which affects power consumption and link stability.
Innovation Solution
A method where a vehicle UE measures the status of resources in idle mode and reports it to the base station, allowing for adjusted resource allocation and duplication transmission strategies to enhance reliability and reduce handover failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If duplication transmission is performed to improve reliability, then data transmission reliability is improved, but power consumption increases and signaling overhead increases
Solution Approach 1:
The patent changes the parameter of transmission mode by dynamically switching between duplication transmission and non-duplication transmission based on channel conditions. When channel quality is good, duplication is stopped to save power; when channel quality degrades, duplication is activated to ensure reliability. This parameter change resolves the contradiction by making the system adaptive rather than static.
Solution Approach 2:
The patent implements dynamic control of duplication transmission through a trigger mechanism that monitors channel quality indicators (CQI). The system transitions from a static always-on duplication mode to a dynamic mode where duplication is activated or deactivated based on real-time channel conditions, thereby optimizing the trade-off between reliability and power consumption.
2Reliability
If duplication transmission is performed to improve reliability, then data transmission reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent changes the parameter of transmission mode by dynamically switching between duplication transmission and non-duplication transmission based on channel conditions. When channel quality is good, duplication is stopped to save power; when channel quality degrades, duplication is activated to ensure reliability. This parameter change resolves the contradiction by making the system adaptive rather than static.
3Use of energy by moving object
If resource allocation is optimized to reduce power consumption, then battery consumption is reduced, but data transmission reliability may deteriorate
Solution Approach 1:
The patent implements dynamic control of duplication transmission through a trigger mechanism that monitors channel quality indicators (CQI). The system transitions from a static always-on duplication mode to a dynamic mode where duplication is activated or deactivated based on real-time channel conditions, thereby optimizing the trade-off between reliability and power consumption.
Solution Approach 2:
The patent employs feedback mechanisms where the UE monitors channel quality and reports CQI to the base station. The base station uses this feedback to determine when to activate or deactivate duplication transmission. This feedback loop ensures that power consumption is minimized while maintaining reliability by making informed decisions based on actual channel conditions.
4Loss of time
If handover procedures are streamlined to reduce latency, then handover latency is reduced, but link stability may deteriorate
Solution Approach 1:
The patent applies preliminary action by performing measurements and evaluations before handover is triggered. The system monitors channel conditions and prepares duplication transmission in advance when degradation is detected, ensuring that reliability measures are already in place before the handover occurs, thus preventing link instability during the transition.
Data Source
AI summary
The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, a security and safety-related service, etc.) on the basis of 5G communication technology and IoT-related technology. According to one embodiment of the present invention, provided is a method for a terminal transmitting a data packet in a wireless communication system. The method comprises the steps of: generating a data packet; determining whether to perform duplicate transmission for the data packet; and if it is determined to perform duplicate transmission for the data packet, generating at least two duplicate packets by duplicating the data packet, and transmitting the respective at least two duplicate packets to at least two base stations.