MAC PDU Subheader Adaptability for 5G Processing Efficiency
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Solution Overview
Problem
Current 5G communication systems face inefficiencies in data processing due to the need to handle variable-sized MAC headers and sub-headers, leading to increased processing overhead and reduced flexibility, especially when backward compatibility is considered.
Innovation Solution
Incorporating a first information field in the MAC sub-header to indicate the presence or absence of a length indication field, allowing receiving ends to skip unnecessary read operations and optimize data processing by determining the need to read specific fields based on this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If variable-sized MAC headers and sub-headers are used to support different data types and lengths, then adaptability is improved, but processing overhead increases and efficiency deteriorates
Solution Approach 1:
The patent changes the parameter of header structure by introducing a first information field that dynamically indicates whether a length indication field is present. This allows the MAC sub-header to adapt its structure based on the specific data type being transmitted, enabling the receiving end to optimize processing by knowing in advance whether to read the length field, thus resolving the contradiction between adaptability and processing efficiency
Solution Approach 2:
The first information field is placed at the beginning of the MAC sub-header to preliminarily indicate the presence or absence of the length indication field. This preliminary information allows the receiving end to prepare appropriate processing actions before encountering the length field, avoiding unnecessary read operations and improving processing efficiency while maintaining structural adaptability
2Ease of operation
If the MAC sub-header always includes a length indication field to simplify receiving end processing, then processing simplicity is improved, but data transmission overhead increases
Solution Approach 1:
Instead of always including the length indication field (excessive action), the patent uses the first information field to indicate only when the length field is actually present (partial action). This allows the system to include the length field only when necessary for certain data types, reducing overall data transmission overhead while maintaining processing simplicity for cases where the length field is needed
3Measurement precision
If the receiving end always reads the length indication field to ensure correct parsing, then parsing accuracy is improved, but processing time increases
Solution Approach 1:
The first information field provides feedback to the receiving end about whether the length indication field is present in the current MAC sub-header. This feedback mechanism allows the receiving end to adjust its parsing behavior dynamically - reading the length field only when indicated as present - thereby maintaining parsing accuracy while reducing unnecessary read operations and processing time
Solution Approach 2:
The patent introduces dynamic behavior to the previously static header structure by using the first information field to dynamically indicate the presence of the length field. This allows the receiving end to dynamically adjust its processing approach based on the actual data type, ensuring accurate parsing while minimizing processing time by avoiding fixed, always-read approaches
Data Source
AI summary
Embodiments of the present application disclose a data transmission method and a related product, including: a receiving end receives a data packet from a transmitting end, the data packet including a medium access control layer (MAC) protocol data unit (PDU), the MAC PDU including multiple MAC subPDUs, and at least one MAC subPDU of the multiple MAC subPDUs including a MAC sub-header; where the MAC sub-header includes a first information field, and the first information field is configured to indicate whether the MAC sub-header includes a length indication L field. The embodiments of the present application, by introducing the first information field in an existing MAC sub-header format, where the first information field can be used to dynamically indicate whether a current MAC subPDU includes an L field, are beneficial to the improvement in flexibility and efficiency of data processing at the receiving end.