Wireless Power Buffer Size Exchange for Higher-Layer Data Streams
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Solution Overview
Problem
Existing wireless power transmission systems lack efficient methods for data exchange at higher layers or application levels, requiring separate hierarchical architectures for managing and operating data transmission between wireless power transmission and reception devices.
Innovation Solution
Implementing a wireless power reception device with a power pickup unit and communication/control unit to negotiate and exchange buffer size information through capability and configuration packets, and a wireless power transmission device with a power conversion unit and communication/control unit to transmit and receive buffer size information, ensuring smooth data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate hierarchical architecture is implemented for data transmission, then data exchange capability at higher layers is improved, but device complexity increases
Solution Approach 1:
The patent combines the data transmission hierarchical architecture with the existing wireless power transmission protocol structure. By integrating application layer data exchange capabilities into the power transmission framework, the system enables both power and data communication through a unified architecture, avoiding the need for completely separate systems and reducing overall complexity.
Solution Approach 2:
The wireless power transmission system is designed to perform multiple functions: power transmission at the physical layer and data exchange at the application layer. The same communication infrastructure supports both electromagnetic power transfer and higher-layer message exchange, making the system universal and multi-functional without requiring entirely separate architectures.
2Reliability
If buffer size negotiation is implemented through capability packets, then data transfer reliability is improved, but communication overhead increases
Solution Approach 1:
The system performs buffer size negotiation in advance during the capability exchange phase, before actual data transfer begins. By determining and agreeing on buffer parameters beforehand through capability packets, the system ensures reliable data transfer without needing continuous communication overhead during the actual transfer process.
Solution Approach 2:
The capability packets contain self-descriptive information about buffer sizes and data transfer capabilities. Each device autonomously declares its capabilities and buffer parameters, allowing the other device to configure appropriate transfer parameters without requiring extensive back-and-forth negotiation, thus reducing communication overhead while maintaining reliability.
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
Establishes well-defined buffer sizes for data transport streams, enabling seamless wireless power transmission and communication between devices.
Implementation Method 1
a power pickup unit configured to receive a wireless power generated based on magnetic coupling from a wireless power transmission device
Data Source
AI summary
The present invention relates to a device and a method for transmitting or receiving data in a wireless power transmission system. The present specification discloses a wireless power reception device comprising: a power pickup unit configured to receive, from a wireless power transmission device, wireless power generated on the basis of magnetic coupling in a power transmission phase; and a communication/control unit configured to receive, from the wireless power transmission device, information on a first buffer size indicating the size of a first buffer for receiving a data transmission stream. As the buffer size for exchanging the data transmission stream between the wireless power transmission device and reception device becomes clear, wireless power transmission and communication can proceed smoothly.