MAC Header Compression via Frame Control Design
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Solution Overview
Problem
In wireless communication systems, the transmission of data packets is inefficient due to the large portion of bandwidth used for transmitting header information, such as medium access control (MAC) headers, which exceeds the bandwidth required for the actual data payload.
Innovation Solution
The method involves generating a MAC header that omits certain fields like frame subtype, retransmission information, and order information, and using a compressed format that includes only essential fields, allowing for reduced header size and transmission overhead, specifically by using a frame control field that stores information indicating frame type, protocol version, and whether an additional frame is to be transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete MAC header with all fields (frame subtype, retransmission information, order information) is transmitted, then the header provides comprehensive control information for reliable communication, but the header size increases causing bandwidth inefficiency
Solution Approach 1:
The patent extracts and removes non-essential fields (frame subtype, retransmission information, order information) from the MAC header, keeping only the critical frame type and protocol version fields. This extraction principle reduces header size while maintaining the essential control functions needed for reliable communication.
Solution Approach 2:
The patent segments the MAC header into essential and non-essential components, transmitting only the essential segment (frame type, protocol version) in the compressed format. This segmentation allows the system to separate critical control information from auxiliary information, reducing overall header size while preserving communication reliability.
2Productivity
If a compressed MAC header format is used, then bandwidth efficiency improves and transmission speed increases, but the header provides less control information
Solution Approach 1:
The patent extracts only the essential control fields (frame type, protocol version) that are necessary for basic packet routing and protocol operation. By removing redundant fields while retaining the core control information, the system achieves faster transmission speeds without significant loss of essential control functionality.
Solution Approach 2:
The patent changes the parameter set of the MAC header from a complete set of control fields to a minimized set containing only frame type and protocol version. This parameter reduction optimizes transmission speed while maintaining the critical control information needed for packet handling.
3Adaptability or versatility
If traditional MAC header format is transmitted, then all control functions are supported, but power consumption increases due to larger transmission overhead
Solution Approach 1:
The patent removes non-essential control fields from the MAC header, reducing the total number of bits that need to be transmitted. This extraction of redundant information directly reduces power consumption while maintaining support for essential control functions through the retained frame type and protocol version fields.
Solution Approach 2:
The patent segments control information into essential and non-essential categories, transmitting only the essential segment. This segmentation reduces transmission overhead and power consumption while preserving the adaptability needed for supporting various control functions through the retained critical fields.
Data Source
AI summary
Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a MAC header with a frame control field. The sub-fields included in a particular frame control field may be based on the type of information to be communicated to the receiving device.