Base Station Inactive Mode for Wireless Networks
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Solution Overview
Problem
Existing wireless communication networks require base stations to periodically emit radio signals even when no connections are active, leading to inefficient use of resources and environmental impact.
Innovation Solution
Base stations are switched to inactive mode when no radio signal is received from mobile terminals, with activation occurring only when a signal is detected, minimizing unnecessary radio signal emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations periodically emit radio signals to enable handover detection, then handover capability is maintained, but energy consumption increases and resources are wasted
Solution Approach 1:
The base station dynamically changes its operational state between active and inactive modes based on real-time detection of mobile terminals in its coverage area. When no terminals are detected, the base station transitions to inactive mode to save energy; when terminals are detected, it activates to maintain service and handover capability.
Solution Approach 2:
The system changes the transmission parameter of base stations from continuous periodic emission to conditional emission based on detection results. The transmission state parameter is adjusted according to the presence or absence of mobile terminals, reducing unnecessary energy consumption while maintaining handover functionality when needed.
2Area of stationary object
If base stations continuously emit radio signals, then coverage area is maintained, but environmental impact increases
Solution Approach 1:
Instead of continuous periodic emission, the system implements conditional periodic emission where base stations only transmit radio signals during periods when mobile terminals are detected in their coverage areas. This reduces the overall time and frequency of radio signal emission, thereby decreasing environmental impact while maintaining coverage availability when needed.
3Productivity
If base stations are switched to inactive mode to save energy, then energy efficiency improves, but handover detection capability may be compromised
Solution Approach 1:
The base station performs preliminary detection of mobile terminals in its coverage area before transitioning to inactive mode. This preliminary action ensures that if terminals are present, the base station remains active or is quickly activated, thereby maintaining handover detection capability while enabling energy-saving operation when the area is clear.
Solution Approach 2:
The system implements a feedback mechanism where the detection result of mobile terminals feeds back to the base station's operational state. The base station continuously monitors for terminals and adjusts its transmission state accordingly, ensuring that handover detection capability is maintained when terminals are present while allowing energy-saving mode when the area is unoccupied.
Data Source
AI summary
A base station is controlled inactively provided that no radio signal is received from a mobile terminal in the radio range thereof while radio signals can still be receive from mobile terminals. An inactively controlled base station is once again controlled actively when a radio signal of at least one mobile terminal is received. The radio range, of the base station, is deactivated while radio signals can be received from the mobile terminal when the base station is controlled inactively. Thus, the number of actively controlled base station may be minimized and the environmental impact of radio signals caused by the base stations reduced.