Samsung joined hands with Qualcomm to successfully test the implementation of 1024 Quadrature Amplitude Modulation (QAM) on frequency division duplex (FDD) and time division duplex (TDD) spectrum basebands. , which can increase downlink speed by more than 20%.
Samsung joins hands with Qualcomm to achieve 1024 QAM for the first time
Quadrature amplitude keying is a method of combining two amplitude modulated signals (2ASK and 2PSK) into one channel, thus doubling the effective bandwidth for more efficient transmission of data or information.
The communications industry currently uses 256 QAM widely, but Samsung and Qualcomm Technologies have implemented the latest 1024 QAM in compliance with the 3GPP Release 17 specifications.
This enhanced QAM technology helps operators maximize the utilization of spectrum resources, allowing mobile users to seamlessly enjoy various mobile services such as live video streaming and online multiplayer games.
The test was conducted at Samsung’s R&D labs in South Korea and utilized Samsung’s 5G vRAN software and radios (supporting the 2.1 GHz (FDD) and 3.5 GHz (TDD) frequency bands respectively), as well as Qualcomm Technologies’ latest Snapdragon X75 5G baseband-RF System test terminal.
This is an important milestone because it is the first time in the industry that 1024 QAM has been implemented in the FDD band. By using a 20 MHz bandwidth, the transmission speed reaches 485 Mbps , achieving a speed close to the theoretical gain. This downlink speed is more than 20% higher than the current upper limit of the speed that 256 QAM can achieve.