Wireless Communication Apparatus Inhibit Periods for Interference
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Solution Overview
Problem
Wireless communication devices using different methods, such as IEEE 802.11 and Bluetooth, experience radio wave interference when operating in the same frequency band, leading to degraded communication performance.
Innovation Solution
A wireless communication apparatus with a first and second wireless communication module, an inhibit period generation module, and a transmission control module that coordinates transmission timing to prevent interference by generating inhibit periods based on the second communication method's information and calculating occupation times to instruct the first module to stop or delay transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless communication modules operate simultaneously in the same frequency band, then communication functionality is enhanced, but radio wave interference occurs and communication performance degrades
Solution Approach 1:
The system performs preliminary actions by having the second wireless communication module (e.g., Bluetooth) inform the first wireless communication module (e.g., WLAN) of its transmission timing through inhibit period generation. This allows the first module to prepare for potential interference by pre-establishing inhibition periods before actual interference occurs, enabling proactive coordination rather than reactive response.
Solution Approach 2:
The system implements feedback mechanisms where the second wireless communication module provides information about its transmission timing to the first module. The first module uses this feedback information to adjust its transmission behavior by generating appropriate inhibit periods, creating a closed-loop coordination system that adapts to the actual communication needs of both modules.
2Productivity
If the first wireless communication module continuously transmits data, then data transmission efficiency is improved, but interference with the second communication method increases
Solution Approach 1:
The system applies periodic action by implementing inhibit periods that are generated based on the transmission timing of the second wireless communication module. Instead of continuous transmission, the first module transmits data periodically, pausing during inhibit periods when the second module is active. This periodic transmission pattern reduces interference while maintaining overall transmission efficiency.
Solution Approach 2:
The transmission control module dynamically adjusts the transmission behavior of the first wireless communication module based on real-time conditions. The inhibit period generation module continuously monitors the transmission timing of the second module and updates the inhibition schedule accordingly, allowing the system to adapt dynamically to changing communication needs and minimize interference proactively.
3Object-affected harmful factors
If transmission timing is coordinated between two communication methods, then radio wave interference is reduced, but system complexity increases
Solution Approach 1:
The system introduces an intermediary mechanism in the form of the inhibit period generation module that mediates between the two wireless communication modules. This intermediary component handles the complexity of timing coordination by generating standardized inhibit period information, which simplifies the interaction between modules and reduces the overall system complexity compared to direct coordination protocols.
4Reliability
If the first wireless communication module delays transmission to avoid interference, then communication performance is maintained, but transmission time increases
Solution Approach 1:
The system performs preliminary coordination actions where the second wireless communication module provides advance information about its transmission timing to the first module. This allows the first module to schedule its transmissions around the inhibit periods efficiently, minimizing unnecessary delays while ensuring interference-free communication. The preliminary timing information enables optimal scheduling rather than conservative delays.
Data Source
AI summary
A wireless communication apparatus includes a first module, a second module, an inhibit module, a calculation module, and a control module. The first module constitutes a first system. The first system transmits and receives first data to and from a first device. The second module constitutes a second system. The second system transmits and receives second data to and from a second device in each interval time-divided with determined transmission timing. The inhibit module generates inhibit periods for preventing the first module from communicating by use of the first data. The calculation module calculates an occupation time required for the transmission and reception of the first data. The control module compares the period between the inhibit periods adjacent to one another with the occupation time and, according to the comparison result, instructs the first device to stop or delay the transmission of the first data.