ARQ PDU Processing for RLC Data Set Bottlenecks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently processing packets, particularly in high-data-rate environments like the 6G communication system, where the Automatic Repeat Request (ARQ) related operations and segmentation processes lead to bottlenecks due to their high processing load, especially in devices with limited capabilities.
Innovation Solution
The method involves generating an ARQ PDU that includes information for processing a set of RLC data PDUs, reducing the number of RLC layer operations from n to one, and using this ARQ PDU to perform certain RLC operations once for the entire set, thereby alleviating the bottleneck by distributing the processing load across multiple RLC data PDUs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ARQ related operations and segmentation processes are performed for each RLC data PDU individually, then processing accuracy and reliability are maintained, but processing load increases significantly creating bottlenecks
Solution Approach 1:
The patent combines multiple RLC data PDUs into a single transport block and performs ARQ operations and segmentation processes once for the entire block rather than individually for each PDU. This merging approach maintains processing reliability while significantly reducing the processing load by eliminating redundant operations across multiple PDUs.
Solution Approach 2:
The invention creates a unified processing mechanism that handles multiple RLC data PDUs through a single ARQ operation and segmentation process. This universal approach allows the system to process batches of PDUs using the same operational framework, improving productivity without sacrificing the accuracy that would result from individual processing.
2Productivity
If the number of RLC layer operations is reduced from n to one, then processing efficiency improves and bottlenecks are alleviated, but operational complexity increases
Solution Approach 1:
The patent segments the processing into distinct phases: first combining multiple RLC data PDUs into a transport block, then performing ARQ operations on the combined block, and finally segmenting the result back into individual PDUs. This structured segmentation of the processing flow manages complexity by creating clear operational boundaries while achieving the efficiency gain of reduced operations.
Solution Approach 2:
The invention introduces a transport block as an intermediary structure that temporarily holds combined RLC data PDUs during processing. This intermediary allows the system to batch multiple PDUs for unified ARQ and segmentation processing, improving efficiency while the clear definition of the intermediary structure helps manage operational complexity.
Data Source
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AI summary
According to an embodiment of the disclosure, a method of operating a transmitting device in a wireless communication system includes obtaining a plurality of radio link control (RLC) data protocol data units (PDUs) in an RLC entity; generating an automatic repeat request (ARQ) PDU corresponding to an RLC data PDU set including at least one of the plurality of RLC data PDUs based on a resource allocation in the RLC entity; transmitting, from a medium access control (MAC) layer, a first MAC PDU generated based on the RLC data PDU set and the ARQ PDU to a receiving device through a lower layer; and receiving a status PDU associated with the RLC data PDU set when a certain condition is satisfied, wherein the ARQ PDU includes information for processing an operation related to the RLC data PDU set.