Wireless Coexistence via Time-Frequency Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The coexistence of Bluetooth and Wi-Fi wireless systems in the same frequency band leads to inefficiencies in Bluetooth data transmission when multiple Bluetooth links are established, as they must use Time Division Multiplexing (TDM), limiting their transmission efficiency due to restricted time slots.
Innovation Solution
Implementing a coexistence operation method that applies different time slots to Wi-Fi and Bluetooth links and uses Frequency Division Multiplexing (FDM) for additional Bluetooth links, allowing data transmission in both Wi-Fi and Bluetooth time slots across different frequency bands, thereby improving Bluetooth data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If Time Division Multiplexing (TDM) is used for Wi-Fi and Bluetooth coexistence, then interference between Wi-Fi and Bluetooth is reduced, but Bluetooth data transmission efficiency deteriorates when multiple Bluetooth links are established
Solution Approach 1:
The patent segments Bluetooth links into two categories: first Bluetooth links that use TDM with Wi-Fi, and second Bluetooth links that operate in frequency bands different from Wi-Fi. This segmentation allows different coexistence strategies to be applied to different Bluetooth links simultaneously, resolving the contradiction by enabling efficient operation of multiple Bluetooth links without being constrained by Wi-Fi time slots.
Solution Approach 2:
The patent introduces a frequency dimension to the coexistence problem. Instead of only using time division (TDM) in the time dimension, the patent utilizes frequency division by allocating second Bluetooth links to frequency bands different from Wi-Fi. This dimensional change allows Bluetooth links to operate simultaneously with Wi-Fi without interference, improving overall Bluetooth transmission efficiency.
2Device complexity
If all Bluetooth links use the same time slots as Wi-Fi TDM, then coexistence is simplified, but Bluetooth transmission flexibility and efficiency deteriorate
Solution Approach 1:
The patent divides Bluetooth links into different groups with different coexistence modes. First Bluetooth links use TDM with Wi-Fi for simple coexistence management, while second Bluetooth links use frequency-based allocation for improved flexibility. This segmentation allows the system to balance complexity and adaptability by applying appropriate strategies to different links.
Solution Approach 2:
The patent creates a universal coexistence framework that can accommodate multiple Bluetooth links with different operational modes. The system can simultaneously manage TDM-based links and frequency-based links, providing multi-functionality in coexistence management that adapts to different scenarios and requirements.
Data Source
AI summary
The present invention provides a coexistence operation method for a wireless system, wherein the wireless system is capable of establishing a first wireless link and a plurality of second wireless link. The coexistence operation method comprises applying different time slots to the first wireless link and a first link of the second wireless links; and applying a different frequency band to a second link of the second wireless links when is the different time slots are applied to the first wireless link and the first link of the second wireless links.