PLCP Header Frame Type Indication for M2M Power Reduction
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Solution Overview
Problem
In M2M systems, existing technologies face challenges in efficiently indicating frame types and minimizing power consumption due to the need for demodulating unnecessary information, which affects battery life and processing efficiency.
Innovation Solution
A method and apparatus that utilize a PLCP header to determine frame types by demodulating specific information within the SIG, allowing for reduced power consumption and increased decoding efficiency by eliminating the need to demodulate unnecessary data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the frame type indication method uses existing technologies, then the frame type can be indicated, but power consumption increases due to demodulating unnecessary information
Solution Approach 1:
The patent extracts only the necessary frame type information from the PLCP header, allowing the receiver to identify frame types without demodulating the entire frame. This extraction principle enables power savings by processing only critical portions of the signal.
Solution Approach 2:
The PLCP header is segmented into specific fields that carry frame type information. By dividing the header into functional segments, the system can selectively process only the relevant segments for frame type identification, avoiding unnecessary demodulation of other parts.
2Productivity
If the frame type indication method uses existing technologies, then the frame type can be indicated, but processing efficiency decreases
Solution Approach 1:
The frame type information is prepared and encoded in the PLCP header in advance, before the main frame data. This preliminary action allows the receiver to determine frame types early in the processing sequence, improving overall processing efficiency by avoiding full demodulation of frames that don't require detailed analysis.
3Productivity
If the PLCP header contains frame type information, then frame type identification becomes efficient, but the header structure becomes more complex
Solution Approach 1:
The PLCP header is designed to serve multiple functions: it carries traditional physical layer information and simultaneously embeds frame type indication. This multi-functionality allows efficient frame type identification without requiring separate signaling mechanisms, though it does increase header structure complexity.
Data Source
AI summary
Disclosed are a method and an apparatus for indicating a frame type using a physical layer convergence protocol header. A method for determining a frame type using a PLCP header may comprise: a step of demodulating a frame type contained in an SIG of the PLCP header so as to acquire information indicating a physical service data unit (PSDU) of a frame; and a step of acquiring frame information required for demodulating the frame contained in the SIG dependently on the information indicating PSDU. Thus, unnecessary information may not be additionally demodulated to thereby improve demodulation efficiency and reduce unnecessary power consumption.