Overview
IEC 63563-11:2025 - Qi Specification version 2.0, Part 11: MPP Communications Protocol defines the Magnetic Power Profile (MPP) extension for Qi wireless power systems. The MPP extension adds messaging, power states/modes, and contract elements to enable more flexible and scalable magnetic wireless power transfer between Power Transmitters (PTx) and Power Receivers (PRx). It supports enhanced negotiation, data exchange, and control capabilities while preserving a low‑resource operating option (Restricted mode at 360 kHz) for devices without full FSK/FMCW support.
Key topics and technical requirements
The standard expands core Qi behavior with the following technical areas and requirements:
- Operating Frequency Negotiation - mechanisms for agreeing on frequency changes between PTx and PRx.
- Cloaking (Power Pause) - defined states and messages to temporarily pause power transfer for safe events or coexistence.
- Generic Information Exchange - generic packets for capability and status sharing.
- Simultaneous Data Stream Transactions - support for parallel data channels alongside power control.
- Fast PTx → PRx Communication - low‑latency signaling to accelerate control and responses.
- Maximum Power & Power Control Profiles Determination - profiles and messages to determine and enforce power limits and control behaviors.
- Extended Power Negotiation - richer negotiation elements and contracts for dynamic scenarios.
- Extended Identification & Capabilities - enhanced PTx/PRx IDs and reported capabilities for interoperability.
- Extended Control Error Packets & Received Power Packets - improved telemetry and control feedback.
- Power Transmitter Battery Level Reporting - PTx-side battery/state reporting to inform PRx behavior.
- Ecosystem Scalability - provisions to scale multi‑device, multi‑transmitter systems.
The specification organizes behavior into phases such as Negotiation, Power Transfer, Cloak, and Extended Data Streams (see table of contents for phase‑level requirements).
Applications and who uses it
This standard is intended for:
- Wireless power system designers (PTx/PRx hardware and firmware teams) implementing advanced negotiation and control features.
- Product teams building multi-device charging mats, wearables, IoT endpoints, and consumer electronics that need robust coexistence, frequency management, or low‑resource receiver options.
- Certification and test labs validating compliance and interoperability across the Qi ecosystem.
- Ecosystem integrators and OEMs aiming for scalable multi‑transmitter/receiver deployments and better power management.
Practical uses include enabling constrained devices to benefit from frequency changes via Restricted mode (360 kHz), improving multi‑device simultaneous charging, enabling fast control loops for responsive power delivery, and exposing transmitter state (battery/health) to receivers.
Related standards
- Base Qi Specification version 2.0 (core wireless power definitions)
- Other parts of the IEC 63563 series covering device/system requirements and interoperability
For authoritative text and purchase, obtain IEC 63563-11:2025 from the IEC Webstore.