Field tests show this promising technology enables up to 2.3x
Spectral Efficiency improvement
HSINCHU, Taiwan, Nov. 2, 2017 /PRNewswire/ -- 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.
Terminology
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[1]
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"Non-Orthogonal
Multiple Access (NOMA)" is a technology that enables the base
station to simultaneously transmit signals to multiple devices in
the area at the same time and using the same frequency by
controlling the transmission power to each device and making the
interference cancellation process of other interfering signals
easier by each device.
|
|
[2]
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"Multi-User
Interference Cancellation (MUIC)" is a technology to remove
unwanted signals at device side when a base station simultaneously
transmits multiple signals to a number of devices in an
area.
|
Technology Experiment Outline
The base station was equipped with four 3.5GHz antennas and
communicated with three devices located at different distances from
the base station, in a small cell environment. All three devices
used in this experiment were equipped with the world's first
NOMA/MUIC capable chipset, with dimensions equivalent to those of
commercially available smart phones.
About NTT DOCOMO
NTT DOCOMO, Japan's leading
mobile operator with over 75 million subscriptions, is one of the
world's foremost contributors to 3G, 4G and 5G mobile network
technologies. Beyond core communications services, DOCOMO is
challenging new frontiers in collaboration with a growing number of
entities ("+d" partners), creating exciting and convenient
value-added services that change the way people live and work.
Under a medium-term plan toward 2020 and beyond, DOCOMO is
pioneering a leading-edge 5G network to facilitate innovative
services that will amaze and inspire customers beyond their
expectations. DOCOMO is listed on stock exchanges in Tokyo (9437) and New
York (DCM). www.nttdocomo.co.jp/english
About MediaTek
MediaTek Incorporated (TWSE:
2454) is a global fabless semiconductor company that enables 1.5
billion connected devices a year. We are a market leader in
developing innovative systems-on-chip (SoC) for mobile device, home
entertainment, connectivity and IoT products. Our dedication to
innovation has positioned us
as a driving market force in several key technology areas,
including highly power-efficient mobile technologies and advanced
multimedia solutions across a broad range of products such as
smartphones, tablets, digital televisions, OTT boxes, wearables and
automotive solutions. MediaTek empowers and inspires people to
expand their horizons and more easily achieve their goals through
smart technology. We call this idea Everyday Genius and it drives
everything we do. Visit www.mediatek.com for more information.
MediaTek Press Office:
PR@mediatek.com
Kevin Keating, MediaTek
+1- 206-321-7295
10188 Telesis Ct #500, San Diego,
CA 92121, USA
Joey Lee, MediaTek
+886 3-567-0766 # 31602
No. 1, Dusing 1st Rd., Hsinchu Science Park, Hsinchu City 30078,
Taiwan