Overview
RT-RK successfully implemented and certified Matter Basic Video Player (BVP) functionality on Android-based Set-Top Boxes (STBs) for a leading European telecom operator.
The solution, built on Silicon Labs EFR32MG24 and Matter 1.4 specification, enables full interoperability with the Matter ecosystem and extends the role of operator STBs into the smart home domain.
Challenge: Bringing Smart Home Interoperability to Operator STBs
Telecom service providers are increasingly looking to integrate their existing STB fleets into the smart home ecosystem. Matter, developed by the Connectivity Standards Alliance (CSA), provides a unified, IP-based standard for secure and reliable device communication across Wi-Fi, Ethernet, and Thread networks.
By adopting Matter and the Basic Video Player (BVP) device type, operators can transform their STBs into native smart home devices — controllable through popular ecosystems such as Apple Home, Google Home, and Amazon Alexa.
This enables:
- Standardized control mechanisms for power, playback, and navigation
- Voice-driven user experiences
- Reduced energy consumption via low-power Thread operation
RT-RK’s Solution: Matter over Thread Integration
System Architecture
RT-RK’s implementation uses the EFR32MG24 wireless SoC as a Thread radio module integrated into the STB.
The MG24 hosts the Matter Thread stack and manages secure commissioning and command decoding, while the Android Host CPU runs the Matter service and user interface.
Key components:
- MG24 Firmware: Built using Silicon Labs Matter SDK and OpenThread 1.3
- Android HAL: Handles UART communication, synchronization, and error recovery
- Matter Service: Maps Matter commands (e.g., OnOff, MediaPlayback) to Android APIs
This modular design ensures clear separation between firmware and Android layers, enabling independent development, testing, and updates.
Figure 1. Matter Basic Video Player block diagram
Energy Efficiency through OpenThread
One of the standout advantages of implementing Matter over Thread is true low-power standby operation.
Traditionally, STBs consume between 3–10 W in simulated standby modes to remain responsive.
With Thread integration, the MG24 remains in a low-power networked state, able to receive commands while the host SoC is powered down.
Benefits:
- Deep sleep capability with remote wake
- Significant power savings across large deployments
- Alignment with EU energy efficiency directives
At fleet scale, this results in tangible energy and cost savings for operators.
Certification and Compliance
RT-RK managed the entire certification process under the CSA Compliance Program, ensuring full interoperability across ecosystems.
Scope of certification:
- Device Attestation Certificate (DAC) management in Secure Vault High of MG24
- Functional and interoperability testing per Matter 1.4
- Thread protocol and RF compliance
- Official certification in a CSA Authorized Test Lab (ATL)
The final device was certified as Matter BVP over Thread, compatible with all major controllers.
Manufacturing and Test Infrastructure
To support large-scale production and lifecycle maintenance, RT-RK developed both factory and field verification tools.
Factory Test Application
- Runs on the Android host with MG24 connected
- Validates communication, radio performance, and firmware flashing
Operator Field Tool
- Enables in-service verification and refurbishment
- Uses the same UART protocol for consistent testing and diagnostics
Lifecycle Management and Updates
RT-RK integrated the firmware upgrade process for the MG24 directly within the Matter Android Service.
When updates are released, they’re distributed through the operator’s existing mechanism. The Matter Service automatically checks firmware versions and performs secure updates via UART — ensuring synchronized, atomic updates across the stack without manual intervention.
This provides reliable lifecycle management and reduces operational complexity.
Results
Integration of Matter Basic Video Player functionality marks a significant step forward in the evolution of operator STBs.
By merging traditional broadcast platforms with smart home ecosystems, operators can now deliver:
- Seamless Matter interoperability
- Voice and automation-based control
- Reduced energy consumption
- Future-ready hardware platforms
This project showcases RT-RK’s expertise in embedded Android systems, wireless communication, and certification processes, bridging the gap between entertainment and connected home technologies.