PDCP Duplication Measurement Across RLC Entities for Lower Latency
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Solution Overview
Problem
Existing wireless communication systems do not effectively measure the performance of packet data convergence protocol (PDCP) duplication, leading to inefficient use of radio link control (RLC) entities and increased latency and resource wastage.
Innovation Solution
A method and apparatus for measuring the performance of PDCP duplication by determining performance parameters based on successful packet reception via multiple RLC entities, allowing for optimization of RLC entity configuration and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PDCP duplication is implemented without performance measurement, then packet delivery reliability is improved through multiple RLC entities, but resource wastage and increased latency occur due to inefficient RLC entity utilization
Solution Approach 1:
The patent implements performance measurement for PDCP duplication by monitoring packet reception success rates across multiple RLC entities. This feedback mechanism enables the system to identify which RLC entities are successfully delivering packets and which are failing, allowing for dynamic optimization of resource allocation to improve reliability while reducing waste.
Solution Approach 2:
The system changes operational parameters by selectively activating or deactivating RLC entities based on measured performance. When certain RLC entities show poor packet delivery rates, the system can adjust the duplication configuration to utilize alternative RLC entities, thereby optimizing the balance between reliability and resource consumption.
2Reliability
If PDCP duplication is implemented without performance measurement, then packet delivery reliability is improved through multiple RLC entities, but latency increases due to inefficient packet processing
Solution Approach 1:
By measuring performance parameters such as packet reception success rates and processing times for each RLC entity, the system obtains feedback that enables optimization of packet processing paths. This allows identification of fast and reliable RLC entities, reducing overall latency while maintaining reliability.
Solution Approach 2:
The system applies partial action by selectively using only the most effective RLC entities for packet transmission based on performance measurements, rather than uniformly treating all RLC entities equally. This partial utilization of optimized paths reduces processing latency while maintaining the reliability benefits of duplication.
3Productivity
If performance measurement for PDCP duplication is implemented, then resource allocation can be optimized, but device complexity increases due to additional measurement and determination mechanisms
Solution Approach 1:
The patent implements self-service by having the wireless communication device autonomously perform performance measurements and determine optimal RLC entity configurations without external intervention. The device monitors its own packet reception success rates and automatically adjusts duplication parameters, which simplifies the overall system architecture despite the added measurement functionality.
Solution Approach 2:
The performance measurement mechanism is designed to serve multiple functions: it measures packet delivery success, identifies optimal RLC entities, and provides data for resource allocation decisions. This multi-functionality reduces the need for separate specialized components, thereby limiting the increase in device complexity while achieving efficient resource allocation.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may detect a trigger to initiate determination of a performance parameter for a packet data convergence protocol (PDCP) duplication procedure associated with a PDCP instance. The wireless communication device may receive packets of the PDCP instance via multiple radio link control (RLC) entities according to the PDCP duplication procedure. The wireless communication device may determine the performance parameter based at least in part on whether packets of the PDCP instance are successfully received via one or more RLC entities of the multiple RLC entities. Numerous other aspects are provided.