Wireless Communication Apparatus Interference Detection
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Solution Overview
Problem
Bluetooth low energy (BLE) wireless communication devices face challenges in reducing power consumption due to interference in the 2.4 GHz ISM band, which can lead to extended connection times and increased power usage, especially when other devices occupy advertisement channels.
Innovation Solution
A wireless communication apparatus with an interference detection unit that monitors multiple channels for interference and controls the transmission of advertisement signals only on channels with no detected interference, reducing unnecessary transmission and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advertisement signals are transmitted on all three channels, then connection establishment reliability is improved, but power consumption increases
Solution Approach 1:
The system dynamically changes the transmission parameter (channel selection) based on detected interference conditions. When interference is detected on a channel, the system stops transmission on that channel; when interference subsides, transmission resumes. This adaptive parameter adjustment resolves the contradiction by transmitting only when necessary, improving reliability while reducing unnecessary power consumption.
2Use of energy by moving object
If advertisement signals are transmitted on only one channel, then power consumption is reduced, but connection establishment time increases
Solution Approach 1:
The system segments the three advertisement channels and selectively activates them based on interference detection. Instead of using all channels continuously or a single channel, the system divides channel usage into interference-free segments, allowing parallel transmission attempts on multiple channels when conditions permit, thus reducing both power consumption and connection establishment time.
3Use of energy by moving object
If advertisement signals are transmitted on only one channel, then power consumption is reduced, but connection establishment reliability deteriorates
Solution Approach 1:
The system dynamically adjusts the number and selection of active transmission channels based on real-time interference detection. The configuration transitions from static single-channel or multi-channel transmission to dynamic adaptive transmission, where the system can use one or multiple channels depending on current channel conditions, thereby maintaining reliability while optimizing power consumption.
Data Source
AI summary
A wireless communication apparatus includes a transmission unit to transmit a communication control signal on each wireless communication channel in a plurality of wireless communication channels and an interference detection unit to detect interference on each wireless communication channel in the plurality of the wireless communication channels. A control unit controls the transmission unit to stop transmitting the communication control signal on any wireless communication channel in the plurality of wireless communications on which interference is detected by the interference detection unit.