Open Platform for Communication-AI Convergence Fusion
Echo
Echo is an open-source development platform built on Venus, our RISC-V processor designed for communication-AI fusion. Echo empowers developers to build, test, and deploy next-generation applications where signal processing meets intelligent computation.
Echo includes
- Communication & AI operators for FFT, Decoder, Conv2D/3D, GELU/SiLU and more
- A full toolchain: compiler, debugger and hardware simulator
- Functional & Performance Simulator: simulates Venus workloads and outputs latency and throughput estimation
- Real-world application demos: 5G/LTE, AI-Based Channel Estimation, GNSS, LoRa, and more
- Comprehensive documentation & tutorials
Architecture
Powered by AURA Architecture & Venus Chip
AURA: AI Unified Radio Architecture
AURA is the foundational computing architecture behind Echo. It is designed for tight integration of perception, communication, and computation, optimized for edge and low-latency scenarios. It is composed of Venus Language, Zoozve Compiler, and Mathematic Libraries.
If you want to learn more about compilers, see Zoozve: A Strip-Mining-Free RISC-V Vector Extension with Arbitrary Register Grouping Compilation Support (WIP).

Venus: Our RISC-V Communication-AI Chip
Venus is a custom RISC-V processor based on the AURA architecture.
- Instruction set extensions for communication and neural workloads
- Built-in accelerators such as the vector engine
- Composed of Venus Tile, Venus Scheduler, and Venus DFE
- Ideal for 5G/6G, GNSS, LoRa, edge AI, V2X, and more
For details, see A Hierarchical Dataflow-Driven Heterogeneous Architecture for Wireless Baseband Processing.

Capabilities
Why Choose Echo?
| Feature | Highlights |
|---|---|
| Unified Programming Model | A single programming framework bridging communication systems and AI workloads. |
| Modular by Design | Flexible architecture for rapid prototyping. |
| Plug & Play | No hardware background required to get started. |
| Full Toolchain | Simulation, compilation, and deployment all included. |
| Cycle-Accurate Simulator | Designed for software-hardware co-design. |
| Open Collaboration | Contribute operators, apps, or hardware extensions. |
| Communication & AI Operators | Provides AI operator libraries and richer signal-processing operator libraries. |
| Real Use Cases | Validated in live projects with measurable performance. |
Audience
Who Is Echo For?
Academia & Researchers
Open-Source Platform for Communication-AI Research
Echo provides a low-cost, low-power environment to prototype and validate communication algorithms with real-world performance. Ideal for academic research and rapid innovation.
Industry
Decoupled Software-Hardware Baseband Chip Solution
Accelerate your baseband chip development with a modular, software-first approach.
R&D Cycle Reduced: From 12-18 months to just 3-6 months.
Standards Organizations
Fast-Track 6G Technology Validation
Streamline the path to 6G standardization with efficient tools and full-stack communication-AI libraries.
Cut traditional prototype cycles of 3-5 years down to months.
Echo is your playground. Whether you're building, testing, or scaling, Echo gives you the freedom to create.
Roadmap
Future Roadmap of Echo
Echo v1.0 beta is scheduled for release before January 1, 2026.
A major milestone in our open-source journey, officially introducing a unified programming paradigm for Communication-AI fusion.

Get Started
Start building with Echo now
- Visit our quick-start guide: Get Started with OpenEcho / ACE-LAB Echo
- Download the toolchain & examples.
- Join the community and start building.
Community
Join the Echo Community
Email: shenyihao@shu.edu.cn
Community: coming soon
"Echo is not just a platform, it's a call to build the future of Communication."
We warmly welcome more developers, researchers, and collaborators to join us on this journey.