MAC PDU Multiplexing Layout for Lower LTE Processing Delay
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing LTE systems face challenges in efficiently processing and transmitting data due to the iterative nature of MAC PDU construction, which leads to processing delays and inefficiencies in handling MAC control elements, especially in scenarios requiring high data rates and real-time processing.
Innovation Solution
The proposed solution involves placing second-layer control elements after second-layer SDUs during data transmission, allowing for pre-processing of MAC PDUs and reducing real-time processing requirements, thereby optimizing the data transmission process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If MAC control elements are placed before MAC SDUs in the conventional LTE system, then the control information can be transmitted, but processing delays occur due to the iterative nature of MAC PDU construction and real-time processing requirements cannot be met
Solution Approach 1:
The patent inverts the conventional ordering of MAC PDU components by placing MAC SDUs before MAC control elements. This inversion eliminates the iterative construction process required when control elements precede data units, allowing for non-iterative, more efficient processing that reduces processing delays while maintaining data transmission functionality.
Solution Approach 2:
The patent enables preliminary processing of MAC PDUs by establishing a fixed structure where MAC SDUs are positioned before MAC control elements. This preliminary structuring allows processing to begin before all control elements are finalized, reducing real-time processing requirements and enabling more efficient data transmission preparation.
2Reliability
If iterative MAC PDU construction is used to ensure proper formatting, then control information is accurately transmitted, but processing efficiency decreases and real-time processing becomes difficult
Solution Approach 1:
By inverting the conventional structure to place MAC SDUs before MAC control elements, the patent eliminates the need for iterative construction while maintaining accurate control information transmission. The fixed structure allows straightforward processing that preserves reliability without sacrificing efficiency.
Solution Approach 2:
The patent segments the MAC PDU construction process into distinct non-iterative stages by establishing a fixed ordering where data units precede control elements. This segmentation allows each portion to be processed independently and efficiently without requiring repeated iterative formatting checks.
Data Source
AI summary
Provided are systems and methods for transmitting data over a wireless channel from a data transmitting node to a data receiving node in a communication system. The data transmitting node comprises second-layer processing circuitry for receiving at least one second-layer SDU, to be mapped onto a resource allocated for data transmission, and for generating a second-layer PDU, including the at least one second-layer SDU and at least one second-layer control element, and first-layer processing circuitry for receiving the second-layer PDU generated by the second-layer processing circuitry and for mapping the second-layer PDU onto the resource allocated for data transmission. The data receiving node comprises first-layer processing circuitry for de-mapping at least one second-layer PDU, and second layer processing circuitry for receiving and parsing the second-layer PDU demapped by the first-layer processing circuitry, the second-layer PDU including at least one second-layer SDU, and at least one second-layer control element.