Wireless Device Dormant Mode for Off-Network Transit
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Solution Overview
Problem
Wireless communication devices experience discontinuous radio coverage when traveling between non-contiguous sectors of wireless communication networks, leading to inefficiencies in data exchange and battery conservation, particularly when users are not actively using their devices.
Innovation Solution
A wireless communication device identifies off-network transit based on location, velocity, and direction, requesting a transfer to a target base station and entering a dormant mode until a specified time, allowing for efficient data exchange when coverage is regained, thereby conserving battery power and avoiding unnecessary handoffs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication devices maintain continuous network connection during off-network transit, then data exchange can occur without interruption, but battery power is consumed unnecessarily and network handoff complexity increases
Solution Approach 1:
The system performs preliminary actions by predicting the device's future location based on current velocity and direction, identifying the target base station in advance, and pre-establishing the connection before the device actually enters the coverage area. This allows the device to enter dormant mode during transit without interrupting data exchange continuity.
Solution Approach 2:
The system dynamically adjusts the device's operational state based on predicted movement and network conditions. The device transitions between active and dormant modes dynamically, rather than maintaining a static connection state, thereby reducing power consumption while ensuring connectivity when needed.
2Use of energy by moving object
If wireless communication devices enter dormant mode during off-network transit, then battery power is conserved, but data exchange may be interrupted when coverage is regained
Solution Approach 1:
The system performs preliminary actions by predicting the device's future location and pre-establishing connection parameters with the target base station before the device enters dormant mode. This ensures that when the device wakes up, data exchange can resume immediately without interruption.
Solution Approach 2:
The system uses feedback from the device's location, velocity, and direction data to continuously monitor and adjust the connection state. This feedback mechanism ensures that the device transitions to active mode at the optimal moment when coverage is regained, maintaining data exchange continuity.
3Reliability
If wireless communication devices perform network handoff in areas with non-contiguous coverage, then connectivity can be maintained, but handoff complexity and failure risk increase
Solution Approach 1:
The system performs preliminary actions by predicting the device's trajectory and identifying the target base station before the actual handoff is needed. Connection parameters are pre-configured in advance, simplifying the handoff process and reducing complexity when the device actually transitions between coverage areas.
Solution Approach 2:
The system uses an intermediary prediction mechanism that acts as a mediator between the current base station and the future target base station. This prediction layer simplifies the handoff process by pre-establishing connection parameters, reducing the complexity of direct handoff in non-contiguous coverage areas.
4Reliability
If wireless communication devices remain active during dormant periods, then network responsiveness is improved, but energy consumption increases unnecessarily
Solution Approach 1:
The system performs preliminary actions by pre-configuring connection parameters and predicting network conditions before the device enters dormant mode. This ensures that when the device needs to become active, it can do so rapidly with pre-established parameters, maintaining network responsiveness while minimizing energy consumption during periods when the device is not in use.
Data Source
AI summary
A wireless communication device exchanges data with a source base station. Based on location, velocity, and direction of the wireless communication device, an off-network transit between a source base station and a target base station is identified. The wireless communication device transfers an off-network transit request to the source base station, indicating the target base station and a time. The wireless communication device receives an off-network transit response from the source base station, indicating the target base station, a target frequency, and authorization data. The wireless communication device enters a dormant mode until the time. When the time is reached, the wireless communication device transfers authorization data to the target base station and exchanges second data with the target base station.