Wireless Power Transfer Scheduling to Avoid Signal Interference
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Solution Overview
Problem
In the 5G era, the increasing power consumption of user equipment (UE) due to larger screens and more powerful baseband chips poses challenges for battery technology, where safety risks rise with capacity increases, and existing wireless power transfer (WPT) solutions face inefficiencies and interference with communication signals.
Innovation Solution
A system where a network device allocates a dedicated resource for a power transfer signal to a UE, transmitting configuration information to enable controlled wireless power supply, avoiding interference with communication signals and simplifying the power transfer process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If battery capacity is increased to meet higher power consumption demands, then power supply capability is improved, but safety risk increases
Solution Approach 1:
The patent introduces wireless power transfer as an intermediary solution between the power source and the UE. Instead of relying solely on internal battery capacity, the system uses a wireless power transfer apparatus to provide supplemental power externally, thereby meeting high power consumption demands without increasing battery capacity and associated safety risks.
2Ease of operation
If wireless power transfer is implemented to eliminate wires, then mobility and convenience are improved, but interference with communication signals occurs
Solution Approach 1:
The patent segments the wireless transmissions by allocating dedicated time resources for power transfer separate from communication signals. The network device configures specific time windows or slots where power transfer occurs, distinguishing it from communication traffic, thereby preventing interference while maintaining wireless convenience.
Solution Approach 2:
The patent implements periodic power transfer operations where the wireless power transfer apparatus transmits power in scheduled intervals or periodic time slots. This periodic structure allows the system to coordinate power transfer with communication schedules, ensuring that power transmission occurs during designated periods without interfering with ongoing communication signals.
3Productivity
If dedicated resources are allocated for power transfer signals, then power transfer efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent makes the network device's resource allocation mechanism multi-functional by using the same existing scheduling and configuration infrastructure that it already employs for communication resources. The network device leverages its universal resource management capabilities to allocate time slots and frequencies for power transfer, avoiding the need for separate dedicated allocation systems and reducing overall complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for controlled and efficient wireless power transfer to UE devices, reducing safety risks and improving charging efficiency while minimizing interference with communication signals.
Implementation Method 1
a transmitter device, driven by electric power from a power source, generates a time-varying electromagnetic field, which transmits power across space to a receiver device
Implementation Method 2
The receiver device extracts power from the electromagnetic field and supplies it to an electrical load
Data Source
AI summary
Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for controlling wireless power transfer. According to embodiments of the present disclosure, a first device (e.g., a terminal device) requests a second device (e.g., a network device) for power supply from the second device to the first device. The second device allocates a resource dedicated for a power transfer signal from the second device. The power transfer signal is used to provide power to the first device. The second device transmits configuration information indicating the dedicated resource to the first device. The first device receives the power transfer signal based on the configuration information.