Gateway Control Apparatus for Multi-Method Wireless Communication
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Solution Overview
Problem
In LPWA communication systems, the use of multiple communication methods simultaneously leads to interference and deterioration in communication characteristics due to overlapping transmission and reception timings, causing collisions and interference between transmission and reception waves.
Innovation Solution
A control device for a gateway device that schedules operations of communication units to prevent overlapping periods of signal transmission and reception by adjusting transmission timings and allocating communication units to unallocated periods, using individual information about each communication unit's characteristics to manage transmission and reception effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple communication methods are used simultaneously in parallel, then communication capacity and coverage are improved, but transmission timing collisions and interference occur causing deterioration in communication characteristics
Solution Approach 1:
The patent segments the communication resources by dividing time into distinct slots and assigning different communication methods to different time slots. Each communication unit operates in its designated time slot, preventing simultaneous transmissions that cause interference. This time-division segmentation allows multiple communication methods to coexist without collision, maintaining both high communication capacity and reliable communication characteristics.
Solution Approach 2:
The patent implements dynamic scheduling of communication units based on their individual characteristics and current system state. The gateway device dynamically adjusts transmission timing and slot allocation to optimize resource utilization while preventing collisions. This dynamic approach allows the system to adapt to varying communication demands and maintain reliable operation across multiple communication methods.
2Adaptability or versatility
If multiple communication units operate independently with different transmission timings, then communication flexibility is improved, but transmission collisions and interference occur
Solution Approach 1:
The gateway device serves as an intermediary that coordinates and manages multiple communication units. It receives communication requests, determines appropriate time slots based on unit characteristics, and schedules transmissions to avoid collisions. This intermediary control mechanism maintains communication flexibility by allowing different methods to operate while preventing harmful interference through centralized timing coordination.
Solution Approach 2:
The system performs preliminary scheduling of transmission timings before actual communication occurs. The gateway device pre-allocates time slots to communication units based on their characteristics and current load, ensuring that transmissions are coordinated in advance. This preliminary action prevents collisions before they occur, allowing flexible operation of multiple communication methods without interference.
Data Source
AI summary
A control device of the present invention is for provision in a gateway device that includes multiple communication units that perform wireless communication with terminal devices using different communication methods. Based on communication unit individual information that is acquired from the communication units and includes information indicating at least characteristics of the communication methods of the communication units, operations of the communication units are scheduled so as to prevent the overlapping of periods in which the communication units perform signal transmission/reception with the terminal devices.