Wi-Fi 6E Test Challenges on ATE

Abstract

Wi-Fi 6E is the latest WLAN standard in the market. With the new benefits of Gigabit data rate, higher capacity with resource management as well as low latency. To accomplish this, it deploys up to 160MHz bandwidth, new extended spectrum above 6GHz and the most complex digital modulation, 1024QAM, which helps to increase throughput and relieve the lack of frequency resource. Wi-Fi 6E brings with it many test challenges. Traditional RF Automated Test Equipment (ATE) only operates up to 6GHz, and cannot address the up to 8GHz spectrum of Wi-Fi 6E. The complex modulation of 1024QAM, will requires new demodulation algorithm and requires more stringent limits. The wider BW (bandwidth) of 160MHz is also a test challenge. The complex and strict requirements bring huge challenge to ATE. In this paper, a low cost and comprehensive test solution will be shown. Test methodology, test strategy and through-put enhancement will be also be shared. Wi-Fi 6E test plan will be introduced and test solution for complicated test modules will be explained.