Dynamic Packet Duplication Activation for 5G Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current multi/dual connectivity solutions in 5G wireless communication systems face challenges in managing packet duplication/multiplication transmissions, particularly in ensuring timely activation and deactivation to maintain transmission reliability and efficient resource usage, especially due to differences in transport formats, pilots, and waveforms between LTE and 5G, which can lead to service interruptions and low reliability.
Innovation Solution
A method and device that enable wireless devices to obtain quality indications of connections with network units, generating messages to determine whether to activate or deactivate packet duplication/multiplication transmissions, allowing network units to coordinate timely initiation or termination of these transmissions based on connection quality, thereby improving reliability and resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet duplication/multiplication transmissions are activated to improve transmission reliability, then transmission reliability is improved, but resource usage efficiency deteriorates
Solution Approach 1:
The patent implements dynamic activation and deactivation of packet duplication/multiplication transmissions based on real-time connection quality assessments. The system transitions from static duplication (always on) to dynamic duplication (conditionally activated), allowing the network to adapt resource allocation to actual transmission needs, thereby improving resource usage efficiency while maintaining reliability when necessary
Solution Approach 2:
The system changes the operational parameter of packet transmission from a fixed state to a variable state based on connection quality metrics. By monitoring connection quality and adjusting the duplication transmission parameter accordingly (activating when quality degrades, deactivating when quality improves), the system optimizes the trade-off between transmission reliability and resource consumption
2Reliability
If packet duplication/multiplication transmissions are activated timely to maintain reliability during handovers, then transmission reliability is improved, but latency increases
Solution Approach 1:
The system performs preliminary assessment of connection quality and proactively activates packet duplication transmissions before handover events occur or when degradation is detected. By taking preliminary action based on quality indications, the system ensures reliability is maintained without waiting for failure conditions, reducing the overall time penalty compared to reactive approaches
Solution Approach 2:
The patent implements a feedback mechanism where connection quality is continuously monitored and assessed, and this information feeds back to control the activation/deactivation of duplication transmissions. This closed-loop control allows the system to respond appropriately to changing conditions, activating duplication only when quality degradation is detected, thereby minimizing unnecessary latency while maintaining reliability
3Loss of energy
If packet duplication/multiplication transmissions are deactivated to improve resource usage efficiency, then resource usage efficiency is improved, but transmission reliability deteriorates
Solution Approach 1:
The system dynamically adjusts the duplication transmission state based on real-time connection quality, transitioning from always-active duplication to conditionally-active duplication. This dynamic approach allows the system to deactivate duplication when connection quality is good (improving resource efficiency) while automatically reactivating when quality degrades (maintaining reliability)
Solution Approach 2:
The system autonomously monitors connection quality and makes independent decisions about activation and deactivation of packet duplication transmissions without requiring external control. This self-service capability allows the system to optimize the reliability-resource efficiency trade-off autonomously based on actual transmission conditions
Data Source
AI summary
Disclosed are methods, devices and computer programs that enables a controlled activation and/or deactivation of multiplication/duplication transmissions where packets transmitted to a wireless device from a network node is multiplied/duplicated and transmitted from several network nodes to the wireless device. The methods, devices and computer programs are based on a quality indication that represents for the quality of the connections between a wireless device and different network units. Based on a quality indication obtained from the wireless device the network node(s) may initiate or terminate a multiplication/duplication transmission mode where packets are transmitted to the wireless device from several network nodes.