Breaking the Speed Barrier: The First Test Solution for Bluetooth LE High Data Throughput (HDT)
Rohde & Schwarz and Realtek Semiconductors have successfully demonstrated the industry’s first validation for the upcoming Bluetooth LE High Data Throughput (HDT) feature!
This isn't just a minor update—it’s a cornerstone for the next generation of wireless. By nearly quadrupling the maximum data rate from 2 Mbps to 7.5 Mbps, HDT unlocks a new world of low-latency audio, rapid media sharing, and lightning-fast OTA updates.
R&S® CMP180
To validate this leap, Rohde & Schwarz utilised the CMP180 radio communication tester. This "one-box" solution is proving to be the gold standard for the entire product lifecycle:
* Future-Ready: Supports frequencies up to 8 GHz and bandwidths up to 500 MHz.
* Versatile: Handles everything from Wi-Fi 8 and 5G NR to the latest Bluetooth® LE PHYs.
* Efficient: Features dual analyzers and generators for high-throughput mass production testing.
Realtek’s Next-Gen Silicon
The demonstration features Realtek’s cutting-edge chips designed for the HDT era:
🔹 RTL8922D: A Wi-Fi/Bluetooth combo chip integrating HDT, channel sounding, and Zigbee/Thread for PCs, IoT, and Automotive.
🔹 RTL8773J: A dedicated audio SoC that unifies BT Legacy, LE Audio, and HDT for immersive, energy-efficient sound.
Why HDT Matters
The new PHY supports five different data rates (2 to 7.5 Mbps) by combining three new modulation schemes with advanced forward error correction. The result? 4x increased capacity, better spectrum efficiency, and significantly improved reliability for immersive audio and seamless connectivity.
As Goce Talaganov (R&S) and Yee-Wei Huang (Realtek) noted, this early collaboration ensures that the ecosystem is ready to bring HDT-ready products to market faster than ever before.
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