Wireless Device Power Management During Network Handoffs
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Solution Overview
Problem
Mobile devices supporting multiple wireless technologies face challenges in managing power consumption during handoffs between network types, leading to disrupted communication and reduced battery life due to the need to constantly power circuitry for multiple networks, which is inefficient and power-intensive.
Innovation Solution
Implementing a method to control transmission signal power levels between different wireless technologies based on the power level indicators of the first technology, allowing for efficient power management during handoffs and concurrent communication, where the power level of the second technology is adjusted according to the first technology's power level, minimizing overall power consumption and maintaining communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the subscriber constantly powers electronic circuitry required to support multiple networks, then the subscriber can simultaneously communicate with multiple networks, but power consumption increases significantly
Solution Approach 1:
The patent implements dynamic power management by continuously monitoring signal conditions and handover parameters, then adjusting the power state of the second network's circuitry in real-time. The system transitions between active and low-power states based on whether a handover is imminent, thereby adapting power consumption to actual communication needs rather than maintaining constant power supply.
Solution Approach 2:
The system performs preliminary monitoring of handover parameters and signal conditions to predict when a network handover will occur. By detecting early indicators of an upcoming handover, the system can proactively power down the second network's circuitry before the handover actually occurs, preventing unnecessary power consumption while ensuring the circuitry is ready when needed.
2Use of energy by moving object
If the subscriber does not power multiple network support circuitry, then power consumption is minimized, but communication is disrupted during network handoffs
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors handover parameters, signal strength, and network conditions. Based on this feedback, the system makes intelligent decisions about when to power down and when to maintain power to the second network's circuitry. This closed-loop control ensures communication continuity by activating the circuitry only when signal conditions indicate an upcoming handover is necessary.
Solution Approach 2:
The system uses its own monitoring capabilities to detect handover conditions and autonomously manage the power state of the circuitry without external intervention. The device self-regulates power consumption by detecting when handover parameters indicate an upcoming network switch, thereby serving its own power management needs while maintaining communication reliability.
3Use of energy by moving object
If the second wireless modem's maximum operating power level is reduced, then power consumption decreases, but communication quality may be affected
Solution Approach 1:
The patent dynamically changes the power level parameter of the second wireless modem based on monitored handover parameters and signal conditions. Rather than using a fixed reduced power level, the system adjusts the power parameter in response to changing network conditions, ensuring communication quality is maintained when handovers are detected while consuming less power during normal operation.
Data Source
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AI summary
Method and apparatuses for power and handoff management in a multiple wireless technology communication device are disclosed. One method includes a wireless device communicating using a first technology, and detecting availability of a second technology. Logic control of the wireless device receives a power level indicator of communication signals of the first technology, and determining an acceptable power level of communication signals of the second technology based on the power level indicator. The logic control determines a requested power level of communication signals of the second technology based on a request from a base station. The logic control provides a modified link quality representation to the base station if the requested power level is greater than the acceptable power level. The wireless device transmits to the base station with the second technology at the acceptable power level.