Link-Quality PDCP Duplication for Multi-Connectivity Bearers
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Solution Overview
Problem
There is a need for improved techniques in wireless communication systems, particularly in NR and LTE technologies, to enhance packet data convergence protocol (PDCP) duplication configurations based on link quality for multi-connectivity (MC) and carrier-aggregation (CA) to support diverse wireless services with varying latency and reliability requirements.
Innovation Solution
The method involves determining a PDCP duplication configuration for communication bearers with user-equipment (UE) based on link quality, and sending an indication of the determined configuration for packet data convergence protocol duplication, utilizing processing systems, computer-readable mediums, and apparatuses to facilitate efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PDCP duplication is activated for all bearers, then communication reliability is improved, but system complexity and resource consumption increase
Solution Approach 1:
The patent implements dynamic PDCP duplication configuration where the network entity adjusts duplication activation status based on real-time link quality measurements. The system transitions from static all-or-nothing duplication to adaptive per-bearer duplication, activating duplication only when link quality degrades below thresholds, thereby improving reliability selectively while reducing unnecessary complexity and resource consumption during good link conditions
Solution Approach 2:
The system changes the parameter of PDCP duplication configuration from a fixed state to a dynamic state based on link quality parameters. By monitoring link quality metrics and adjusting duplication status accordingly, the system optimizes the balance between reliability improvement and complexity reduction, activating duplication only when and where needed
2Reliability
If PDCP duplication is activated for all bearers, then communication reliability is improved, but resource consumption increases
Solution Approach 1:
The system dynamically adjusts PDCP duplication resource allocation based on real-time link quality conditions. By activating duplication only for bearers experiencing poor link quality and deactivating it for bearers with good link quality, the system reduces overall resource consumption while maintaining reliability where needed, avoiding wasteful resource usage during good link conditions
Solution Approach 2:
The system changes resource consumption parameters by adjusting PDCP duplication status per-bearer based on link quality thresholds. This selective parameter adjustment reduces energy and resource consumption compared to universal duplication activation, while maintaining reliability improvements for affected bearers
3Productivity
If link quality-based PDCP duplication configuration is implemented, then communication efficiency is improved, but configuration complexity increases
Solution Approach 1:
The system implements self-service through automated link quality monitoring and threshold-based duplication configuration. The network entity automatically measures link quality, compares against thresholds, and adjusts PDCP duplication status without manual intervention, improving communication efficiency through adaptive optimization while reducing configuration complexity by eliminating manual setup requirements
Solution Approach 2:
The system employs feedback mechanisms where link quality measurements continuously inform duplication configuration decisions. The network entity monitors link quality metrics and uses this feedback to dynamically adjust PDCP duplication status, creating a closed-loop control system that improves efficiency through adaptive optimization while managing complexity through automated decision-making
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for determining a configuration for packet data convergence protocol (PDCP) duplication. Certain aspects provide a method for wireless communication. The method generally includes determining a PDCP duplication configuration corresponding to at least one of multi-connectivity (MC) or carrier-aggregation (CA) for communication of at least one bearer with a user-equipment (UE), wherein the determination is based on an indication corresponding to a link quality for the communication, and sending an indication of the determined configuration for the communication of the at least one bearer.