Mixed PPDU Bandwidth Segmentation for LR and Non-LR Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication technologies face challenges in providing efficient long-distance transmission and high-frequency efficiency, especially in high-density environments and IoT settings, where existing standards like IEEE 802.11n and 802.11ac have limitations in bandwidth utilization and range.
Innovation Solution
A wireless communication terminal and method that generate a mixed Physical Layer Protocol Data Unit (PPDU) with separate bandwidths for Long Range (LR) and non-LR wireless communication terminals, allowing for simultaneous data transmission using a processor to manage training signals and data fields, optimizing preamble lengths, and signaling formats to enhance transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single bandwidth is used for all wireless communication terminals, then device complexity is reduced, but transmission range and frequency efficiency cannot be optimized for different terminal types
Solution Approach 1:
The patent segments the bandwidth resource into two distinct parts: a first bandwidth for long-range terminals and a second bandwidth for non-long-range terminals. This segmentation allows each terminal type to operate on its optimized bandwidth without requiring complex adaptive configurations, thus improving adaptability while controlling device complexity.
Solution Approach 2:
The patent applies local quality by assigning different bandwidth characteristics to different terminal types. Long-range terminals use a narrower first bandwidth optimized for distance, while non-long-range terminals use a wider second bandwidth optimized for speed. This localized optimization resolves the contradiction by making the system adaptable to different requirements without requiring every terminal to support all bandwidth configurations.
2Speed
If wider bandwidth is used for high-speed transmission, then communication speed is improved, but transmission range is reduced
Solution Approach 1:
The patent divides the overall bandwidth into two segments: a wider second bandwidth for high-speed communication with non-long-range terminals and a narrower first bandwidth for long-range communication. This segmentation resolves the speed-range contradiction by allowing each terminal type to utilize the bandwidth configuration most suitable for its operational requirements.
Solution Approach 2:
The patent changes the bandwidth parameter differently for different terminal types. Non-long-range terminals operate with a larger bandwidth parameter for higher speed, while long-range terminals operate with a smaller bandwidth parameter for extended range. This parameter differentiation resolves the contradiction by making speed and range可调 according to terminal type.
3Length of moving object
If narrower bandwidth is used for long-range transmission, then transmission range is extended, but communication speed is reduced
Solution Approach 1:
The patent segments the bandwidth resource to allocate a narrower first bandwidth specifically for long-range terminals, accepting reduced speed as a trade-off for extended range. Simultaneously, a wider second bandwidth is allocated for non-long-range terminals that require higher speeds. This segmentation resolves the contradiction by matching bandwidth characteristics to terminal requirements.
Solution Approach 2:
The patent applies local quality by providing different bandwidth characteristics to different terminal types based on their specific needs. Long-range terminals receive a narrower bandwidth optimized for distance, while non-long-range terminals receive a wider bandwidth optimized for speed. This localized optimization resolves the speed-range contradiction.
4Productivity
If separate transmissions are used for LR and non-LR terminals, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the transmission resource by frequency bandwidth, creating separate transmission channels for long-range and non-long-range terminals. This segmentation improves transmission efficiency by allowing each terminal type to use optimized parameters without interfering with the other, while the base station handles the complexity of managing multiple bandwidths centrally rather than requiring complex adaptive capabilities in each terminal.
Solution Approach 2:
The base station acts as an intermediary that manages the complexity of handling multiple bandwidth configurations. It allocates the first bandwidth to long-range terminals and the second bandwidth to non-long-range terminals, centralizing the complexity management function and preventing terminals from needing complex adaptive transmission capabilities.
Data Source
AI summary
Provided is a base wireless communication terminal. The base wireless communication terminal includes a transceiver and a processor. The processor is configured to transmit a mixed Physical Layer Protocol Data Unit (PPDU) including both data for a Long Range (LR) wireless communication terminal and data for a non-LR wireless communication terminal to the LR wireless communication terminal and the non-LR wireless communication terminal using the transceiver. The LR PPDU including only the data for the LR wireless communication terminal has a narrower bandwidth than a bandwidth of the non-LR PPDU including only the data for the non-LR wireless communication terminal.