MAC Layer Header Processing for 5G IoT Overhead Reduction
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Solution Overview
Problem
The increasing demand for wireless data traffic in 5G communication systems leads to higher MAC control element (CE) transmission overhead and packet segmentation overhead, which existing methods have not adequately addressed.
Innovation Solution
A method and apparatus in a wireless communication system that allocates packets to logical channels, identifies smaller packets relative to a transport block, and transmits these packets efficiently, reducing overhead by using either a fixed-length or variable-length MAC CE structure without the need for a length field, and optimizing packet transmission to minimize segmentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If MAC control element size is increased to accommodate more data, then data transmission capacity is improved, but transmission overhead increases
Solution Approach 1:
The patent segments packets into multiple transport blocks and transmits them across multiple slots. This allows the system to handle larger data volumes by dividing them into manageable units, reducing the overhead associated with transmitting large MAC control elements as a single unit. Each segment can be independently managed and retransmitted if needed.
Solution Approach 2:
The patent introduces a time dimension by transmitting different transport blocks in different time slots. Instead of increasing MAC CE size in a single transmission, the system distributes data across multiple time slots, effectively adding a temporal dimension to data transmission. This reduces the immediate overhead burden while maintaining overall transmission capacity.
2Adaptability or versatility
If packets are segmented into multiple transport blocks, then data transmission flexibility is improved, but segmentation overhead increases
Solution Approach 1:
The patent performs preliminary actions by pre-configuring transport block sizes and slot allocations before actual data transmission. The network device determines packet sizes and divides them into transport blocks in advance, establishing transmission parameters beforehand. This preliminary organization reduces the computational overhead during actual transmission while maintaining flexibility.
Solution Approach 2:
The patent dynamically adjusts transmission parameters such as transport block size, number of slots, and modulation schemes based on channel conditions and data requirements. By changing these parameters adaptively, the system optimizes the balance between segmentation flexibility and overhead, reducing unnecessary segmentation when conditions permit larger transport blocks.
3Adaptability or versatility
If MAC CE length field is always present to indicate variable length, then transmission adaptability is improved, but overhead increases
Solution Approach 1:
The patent applies partial action by including the length field in MAC control elements only when necessary, rather than always. When transport blocks fit within predefined size thresholds or when using fixed-size configurations, the length field can be omitted. This selective inclusion reduces overhead while maintaining adaptability for cases where variable lengths are required.
Data Source
AI summary
The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present invention provides a method and device for reducing overhead by processing a header in an MAC layer.