Dynamic Packet Duplication for Wireless Reliability
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing bandwidth and resource allocation across diverse user equipment (UE) capabilities and network conditions, leading to suboptimal performance and increased latency.
Innovation Solution
The implementation of advanced bandwidth management techniques, including dynamic bandwidth part (BWP) configuration and carrier aggregation, allows for adaptive resource allocation based on real-time traffic conditions and UE capabilities, optimizing network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet duplication is implemented to improve reliability, then data transmission reliability is improved, but network resource consumption increases
Solution Approach 1:
The patent dynamically changes the packet duplication parameter by activating or deactivating duplication based on network conditions and QoS requirements. The network node receives configuration to activate duplication for specific data radi bearers and can deactivate it when not needed, thus adapting the reliability level to match actual requirements and reducing unnecessary resource consumption.
Solution Approach 2:
The patent implements dynamic packet duplication where the network node can activate or deactivate duplication based on real-time network conditions and QoS requirements. This dynamic adjustment allows the system to optimize between reliability and resource consumption by enabling duplication only when and where it is truly needed, rather than maintaining it statically across all transmissions.
2Productivity
If dynamic bandwidth part configuration is implemented, then network efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the available bandwidth into multiple bandwidth parts (BWPs), each optimized for different scenarios (e.g., narrowband for coverage enhancement, wideband for high data rates). The network node can configure and switch between different BWPs based on UE capabilities and traffic requirements, improving network efficiency while managing complexity through structured segmentation.
Solution Approach 2:
The patent creates a universal bandwidth management framework where a single BWP configuration mechanism serves multiple purposes: supporting different UE capabilities (coverage enhancement, high data rate), adapting to various traffic conditions, and enabling flexible resource allocation. This multi-functional approach improves efficiency without proportionally increasing complexity.
Data Source
AI summary
A wireless device receives configuration parameters indicating a first logical channel of a bearer, configured with duplication, mapped to a first base station distributed unit (DU) and a second logical channel of the bearer mapped to a second base station DU. Based on activation of duplication for the bearer, the wireless device transmits first data of the first logical channel via the first base station DU and second data of the second logical channel via the second base station DU.