Communications Device Subcarrier Allocation for Throughput Flexibility
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Solution Overview
Problem
Current wireless local area network systems have limited flexibility in changing throughput, as the increase or decrease in throughput is restricted by the need for equal subcarrier quantities in the transmission frames.
Innovation Solution
A communications device that sends transmission frames with different subcarrier quantities for the preamble and data parts, allowing for flexible adjustment of throughput by using a first quantity of subcarriers for the preamble and a second quantity for the data, where the quantities can be equal or unequal, enabling both increased and decreased throughput as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If equal subcarrier quantities are used for preamble and data parts, then compatibility and stability are maintained, but throughput flexibility is limited
Solution Approach 1:
The transmission frame is divided into a preamble part and a data part, allowing each part to use different subcarrier quantities independently. This segmentation enables the preamble to use a first quantity of subcarriers and the data to use a second quantity of subcarriers, providing throughput flexibility while maintaining compatibility.
Solution Approach 2:
The patent introduces dynamic subcarrier quantity adjustment where the first quantity and second quantity of subcarriers can be different and can be adjusted according to throughput requirements. This dynamic configuration allows the system to adapt to varying throughput needs without being constrained by fixed equal subcarrier quantities.
2Productivity
If different subcarrier quantities are used for preamble and data parts, then throughput flexibility is improved, but system complexity increases
Solution Approach 1:
By segmenting the transmission frame into preamble and data parts with independent subcarrier quantity configuration, the system achieves flexible throughput adjustment. The preamble uses a first quantity of subcarriers and the data uses a second quantity, allowing optimized performance without uniform constraints.
Solution Approach 2:
The patent changes the parameter of subcarrier quantity from a fixed equal value to variable different values for preamble and data parts. This parameter change enables the system to adjust throughput dynamically by selecting appropriate first and second quantities of subcarriers based on transmission requirements.
Data Source
AI summary
The present invention provides a data transmission method and a communications device. The communications device includes: a transceiver, configured to send a transmission frame to a second communications device, so that the second communications device acquires data information in the transmission frame, where the transmission frame includes a first part and a second part, the transceiver sends the first part of the transmission frame by using a first quantity of subcarriers, the transceiver sends the second part of the transmission frame by using a second quantity of subcarriers, and the first quantity is not equal to the second quantity.