Wireless Charging Communication Negotiation for NFC and BLE Compatibility
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Solution Overview
Problem
Existing wireless charging systems face incompatibility issues due to the inability to support both NFC and BLE communication modes simultaneously, leading to suboptimal communication rates.
Innovation Solution
A communication method and apparatus that enable compatibility with multiple communication modes by matching and switching between supported out-of-band communication modes, ensuring high-rate communication through enhanced in-band communication when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only one communication mode (NFC or BLE) is introduced, then device complexity is reduced, but adaptability deteriorates due to incompatibility between charging pads and mobile phones
Solution Approach 1:
The patent implements multi-functionality by enabling the wireless charging system to support multiple communication modes (NFC, BLE, and in-band) within a single standardized protocol framework. The power transmitter and power receiver can negotiate and select from multiple communication modes, making the system universally compatible with different devices regardless of which specific communication mode they support.
2Adaptability or versatility
If NFC and BLE are introduced simultaneously, then adaptability improves, but device complexity increases making simultaneous support impossible
Solution Approach 1:
The patent merges multiple communication modes (NFC, BLE, and in-band communication) into a unified communication framework. Instead of implementing separate independent systems for each communication mode, the patent combines them under a single WPC standardized protocol that can negotiate and switch between different communication modes, thereby reducing overall system complexity while maintaining multi-mode support.
3Productivity
If in-band communication is used, then device complexity is reduced, but communication rate deteriorates due to small information amount requirements
Solution Approach 1:
The patent implements dynamic communication mode selection where the system can adaptively switch between different communication modes (in-band, NFC, BLE) based on the specific communication requirements. For high-rate data transmission needs, the system dynamically selects out-of-band communication modes, while for basic handshake communication, it uses the simpler in-band mode, thereby optimizing communication rate without unnecessarily increasing complexity.
Data Source
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AI summary
The present disclosure relates to a communication method and apparatus, a power receiving device, a power transmission device, and a computer readable storage medium. The communication method comprises: receiving out-of-band communication modes supported by a power transmitter (PTX) and transmitted by the PTX via a first communication mode, wherein the first communication mode comprises an enhanced in-band communication mode; matching the out-of-band communication modes supported by the PTX with out-of-band communication modes supported by a power receiver (PRX); and when the out-of-band communication modes supported by the PTX and the out-of-band communication modes supported by the PRX share an identical out-of band communication mode, using the identical out-band communication mode to return data to the PTX or to return a result of the matching between the out-of-band communication modes to the PTX. Embodiments of the present disclosure can be used to achieve compatibility with multiple communication modes and to support high-speed communication in a wireless charging system.