Employing AI to optimize 6G neural receiver designs
Verifying the performance of a 6G neural receiver requires site-specific training data generation. Yet, limited data is available, and validating the receiver’s performance in end-to-end systems is challenging. Once the algorithm design is complete, designing a 6G neural receiver using artificial intelligence (AI) is a multiple-step process. Before deploying neural receivers in commercial networks, engineers must ensure that the receivers are well-trained, outperform traditional receivers, and handle the channel conditions of real-world networks robustly. AI integration in 6G focuses on two processes: channel estimation and channel state feedback.
If engineers do not understand channel behavior and fail to compensate for its anomalies in real time, 6G performance will fall consistently short of expectations. Design engineers need a solution to train neural receivers using software-generated labeled data. After generating the data, they need to validate the neural network’s performance when integrated into a wireless system. Then, they can emulate and integrate different channel conditions into the system. A channel emulator is necessary to import channel models from external tools or use existing model data. This approach enables engineers to create a digital twin of various channel conditions and compare the simulation results with a real-world system.
6G AI neural receiver design test solution
Verifying receiver functionality in 6G systems requires accurate channel estimation. The Keysight solution trains a neural receiver using labeled data generated by Keysight PathWave System Design. The system optimizes the training data to be site-specific, and the data updates to accommodate different scenarios. When the training is complete, the Keysight equipment generates and transmits new 5G waveforms to the neural receiver through a live Open RAN network, complete with a commercial ORAN radio unit. The receiver can then demodulate the signal using AI and machine learning algorithms from the previous training. Once the system processes the signal, test engineers can measure the bit error rate / block error rate for the end-to-end system to provide insights into the neural receiver’s performance. Finally, the Keysight PROPSIM channel emulator can import channel models from external ray-tracing tools. The data then serves as the digital twin of a channel to compare simulation results with a real-world system.
How to Verify the Performance of a 6G Neural Receiver
M9484C VXG Vector Signal Generator
The M9484C VXG is the vector signal generator capable of generating signals up to 54 GHz with 2.5 GHz of modulation bandwidth per channel. The VXG vector signal generator helps you deliver the next frontier of wireless technology such as 5G and satellite communications with a fully integrated, calibrated, and synchronized solution.
Arbitrary Waveform Generator 14 bit / 8 GSa/s 12 bit / 12 GSa/s 128 MSa memory Upgrade to 2 GSa memory Advanced sequencing
Frequency Range
>240 MHz
Intrinsic Jitter
15 ps
Effective Number of Bits (ENOB)
12.25 Bits
Spur Free Dynamic Range
90 dBc
Typical Rise/Fall Time
< 60 ps
DAC Resolution
12/14 bit
Bandwidth
5 GHz
Number of Channels
1
2
Form Factor
1-slot AXIe
Max Memory Depth
2 GSa
Type
High Signal Fidelity AWG
Signal Type
Any arbitrary waveform
Functionality
Arbitrary Waveform Generator
Max Sample Rate
12 GSa/s
Slots
1
How to Verify the Performance of a 6G Neural Receiver
S5040A Open RAN Studio Player and Capture Appliance
The Keysight S5040A is an instrument grade test and measurement appliance designed to operate with Keysight’s PathWave Signal Studio and Open RAN Studio to emulate a Distributed Unit (O-DU), capture O-RAN uplink communications, and perform the measurements necessary to validate an O-RU’s functional operation and performance.
How to Verify the Performance of a 6G Neural Receiver
F8820A PROPSIM FS16 Channel Emulator
Keysight's F8820A PROPSIM FS16 RF Channel Emulator enables you to perform in-lab benchmarking of devices, base stations, digital radios, and sensor systems across the entire product workflow – from research and development to acceptance and field performance optimization