Simultaneous Wireless LAN and Bluetooth Frequency Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of wireless LAN and Bluetooth transceivers in electronic devices often results in mutual interference due to shared frequency bands, leading to transmission delays and limited usable time for data transmission, as existing solutions like time division multiplexing (TDM) cause inefficiencies.
Innovation Solution
A communication device comprising a wireless LAN transceiver, a Bluetooth transceiver, an oscillator, and a mixer, with a control circuit that configures the components to generate and mix signals, allowing simultaneous operation by converting RF signals to intermediate frequencies, thereby reducing interference and enhancing communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If time division multiplexing (TDM) is adopted to prevent mutual interference between wireless LAN and Bluetooth transceivers, then interference is reduced, but transmission delay increases and usable time for data transmission is limited
Solution Approach 1:
The patent segments the frequency bands by using different local oscillator frequencies for Bluetooth and wireless LAN operations. The Bluetooth transceiver operates in one frequency band while the wireless LAN transceiver operates in another frequency band simultaneously, eliminating the need for time division multiplexing and reducing transmission delays.
Solution Approach 2:
The patent changes the frequency parameter by using different local oscillator frequencies (first frequency for Bluetooth, second frequency for wireless LAN) to create different operating frequency bands. This allows both transceivers to operate simultaneously without mutual interference, resolving the contradiction between preventing interference and maintaining transmission speed.
2Area of stationary object
If wireless LAN transceiver and Bluetooth transceiver are integrated in the same electronic device, then space is saved, but mutual interference occurs due to shared frequency bands
Solution Approach 1:
The patent changes the frequency parameter by using different local oscillator frequencies to create distinct operating frequency bands for Bluetooth and wireless LAN transceivers. This allows both transceivers to share the same physical space without mutual interference, as they operate in different frequency domains simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simultaneous and efficient operation of wireless LAN and Bluetooth communications by minimizing interference, increasing usable channel numbers and improving communication quality through optimized frequency conversion and signal processing.
Implementation Method 1
a mixer for mixing the third signal and the fifth signal to generate a seventh signal, and for mixing the fourth signal and the sixth signal to generate an eighth signal
Data Source
AI summary
A communication device is disclosed, having a wireless LAN transceiver, a wireless LAN demodulation circuit, a Bluetooth transceiver, a Bluetooth demodulation circuit, an oscillator, and a mixer. The wireless LAN transceiver conducts communication in a first frequency band and the wireless LAN demodulation circuit demodulates the wireless LAN signals. The Bluetooth transceiver conducts communication in a second band and a third frequency band, which are higher and lower than the first frequency band, respectively. The oscillator generates oscillating signals. The mixer mixes the signals in the second frequency band with an oscillating signal, which is higher than the second frequency band, and mixes the signals in the third frequency band with another oscillating signal, which is lower than the third frequency band to generate mixed signals. The Bluetooth demodulation circuit demodulates the mixed signals of the mixer.