Relay Device Frequency Switching for Wireless Network Coverage
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Solution Overview
Problem
Existing wireless communication networks face challenges in seamlessly switching between separation and sharing modes without disrupting communication, especially when adjacent networks have different communication resources like frequency, time, and spreading codes.
Innovation Solution
A wireless communication network system comprising a sensor device, relay devices, and a gateway device, where the relay devices include a receiver, storage for heartbeat data, and a transmitter that can set frequencies based on commands from the gateway device, allowing for dynamic switching between separation and sharing modes by adjusting communication frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication networks are separated to avoid interference, then communication reliability is improved, but network coverage area is reduced
Solution Approach 1:
The relay device dynamically switches between separation mode and sharing mode based on communication conditions. The device can operate with adjacent networks using different frequencies (separation) or the same frequency (sharing), allowing the network to adapt its configuration to maximize coverage while maintaining reliability when needed
Solution Approach 2:
The system changes the frequency parameter dynamically. The relay device can operate at different frequencies depending on whether separation or sharing mode is selected, enabling flexible adjustment of communication parameters to resolve the contradiction between reliability and coverage area
2Area of stationary object
If frequency switching is implemented to enable network sharing, then network coverage area is improved, but device complexity increases
Solution Approach 1:
The relay device autonomously switches between separation and sharing modes based on pre-stored control information, eliminating the need for complex real-time negotiation protocols. The device self-manages frequency switching by selecting appropriate frequencies from stored options, reducing overall system complexity
Solution Approach 2:
Frequency settings and control information are predetermined and stored in the relay device before operation. This preliminary configuration allows the device to switch modes quickly without complex real-time calculations, reducing device complexity while enabling flexible network sharing
3Measurement precision
If heartbeat signals are transmitted frequently to confirm switching status, then measurement precision is improved, but energy consumption increases
Solution Approach 1:
Heartbeat signals are transmitted periodically at predetermined intervals rather than continuously. This periodic transmission provides sufficient confirmation of switching status while significantly reducing energy consumption compared to continuous monitoring
Solution Approach 2:
The system uses minimal heartbeat signaling just sufficient to confirm switching status rather than continuous verification. This partial action approach provides adequate measurement precision for network operation while avoiding excessive energy consumption
Data Source
AI summary
A wireless communication network system (1) comprising a sensor device (10) transmitting detected data, one or a plurality of relay devices (100) relaying the data, and a gateway device (11) transferring the data to another network, wherein the sensor device, the relay device, and the gateway device being connected by a wireless communication network, wherein the relay device comprising: a receiver (101) receiving a received signal containing the data; a storage (104) storing heartbeat data; a transmitter (102) transmitting a transmission signal containing the data received by the receiver and periodically transmitting a transmission signal containing the heartbeat data; and a frequency setting unit (103) directing to set a frequency of the received signal received by the receiver and/or a frequency of the transmission signal transmitted from the transmitter based on a frequency setting command transmitted from the gateway device.