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Efficient 5G Spectral Utilization shown with World First Compact NOMA Chipset

Source: Date:2017-11-28

Efficient 5G Spectral Utilization shown with World’s First Compact NOMA Chipset

Field tests show this promising technology enables up to 2.3x Spectral Efficiency improvement 

HSINCHU, Taiwan – November 2, 2017 – NTT DOCOMO, Inc. (DOCOMO) and MediaTek Inc. (MediaTek) announced today successful field tests of an important new feature for ultra-high speed and high-capacity 5G communication. By combining Non-Orthogonal Multiple Access (NOMA)1 – a technology proposed by DOCOMO - and Multi-User Interference Cancellation (MUIC)2 technology proposed by MediaTek and enabled on the test chipset, the field experiment resulted in a up to 2.3x spectral efficiency improvement when compared with single user MIMO using the same transmit/receiver antenna configuration. With the NOMA and MUIC technologies proposed by DOCOMO and MediaTek, this experiment verifies the spectral efficiency improvement has potential for 5G standardization.

In this experiment, three test devices are situated at different locations, with super-positioned signals transmitted from a base station, at the same frequency, for different devices at the same time. The test results confirm the interfered signal can be successfully recovered thanks to the interference cancellation technology implemented in the test chipset. This provided up to 2.3x spectral efficiency improvement compared with existing technologies.

MediaTek will continue R&D on its 5G platforms with technologies such as NOMA/MUIC that provide a better user experience, particularly in dense urban environments. MediaTek and DOCOMO are committed to promote global standardization and the commercial deployment of 5G by 2020.

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