DOCOMO and Huawei Confirm LTE Network over Unlicensed Spectrum
Key advancement toward the global standardization of LAA technology
Tokyo, Aug 21, 2014 - (JCN Newswire) - NTT DOCOMO, INC., a personalized mobile
solutions provider for smarter living, together with DOCOMO Beijing
Communications Laboratories Co., Ltd. and Huawei announced today that their
joint test has successfully demonstrated that LTE can be deployed over the 5GHz
unlicensed spectrum, which is widely used for wireless LAN networks in many
In research carried out at a Huawei facility in Beijing since February 2014,
DOCOMO and Huawei have been conducting experiments of Licensed-Assisted Access
(LAA), a technology that expands LTE-compatible spectrum to unlicensed spectrum
bands, thereby providing complementary access for the LTE operator network.
Currently, LTE's compatible spectrum bands are licensed between the 700MHz
and 2.5GHz bands in Japan.
The indoor test found that LAA can work in 5GHz bandwidth, leading to cell
capacity of approximately 1.6 times greater than that of IEEE 802.11n, a
standard specification for WLAN. This significant result was a positive
indication that LAA can be utilized as an enhancement of LTE, and also
LTE-Advanced, which DOCOMO plans to launch by March 2015. For example,
higher-speed data communications and a higher cell capacity in dense traffic
areas should be achievable by utilizing the 5GHz spectrum for LTE and
LTE-Advanced on a complementary basis in coexistence with wireless LAN.
"We are very pleased to have confirmed that LAA is a viable technology
for LTE and future LTE-Advanced," said Seizo Onoe, Executive Vice
President and Chief Technical Officer at NTT DOCOMO. "We aim to contribute
to the standardization of this technology, which inherits the highly advanced
features of LTE, to further enhance the global user experience with wireless
"We are pleased to see successful joint field results on deploying LAA in
partnership with NTT DOCOMO," said Ryan Ding, Executive Director of Board
and President of Products & Solutions, Huawei. "Huawei is committed to
helping operators to provide end-users with abundant mobile broadband
experience by utilizing core LTE technologies such as LAA in spite of limited
spectrum resources. We will continue to work with NTT DOCOMO and contribute to
global standardization efforts through these joint research efforts."
The standardization of LAA, which shows great potential as a solution for
extremely condensed data traffic, is likely to be discussed later this year by
3GPP, an industry initiative to drive standardization of key telecommunications
technologies. DOCOMO will continue to pursue development of this advanced
mobile technology while playing a leading role in its standardization.
About NTT DOCOMO
NTT DOCOMO is a world-leading mobile operator and growing provider of
comprehensive services centered on mobility. The company serves over 60 million
customers in Japan via advanced wireless networks, including a nationwide 3G
network and one of the world's first commercial LTE networks. Leveraging
its unique capabilities as a mobile operator, DOCOMO is a leading developer of
cutting-edge technologies for NFC mobile payments, mobile GPS, mobile TV,
intuitive mobile assistance, environmental monitoring, smart grids and much
more. Overseas, the company provides technical and operational expertise to
eight mobile operators and other partner companies. NTT DOCOMO is listed on the
Tokyo (9437), London (NDCM) and New York (DCM) stock exchanges. Please visit
www.nttdocomo.com for more information.
Eijun Tanaka or So Hiroki
Public Relations Department
Copyright 2014 JCN Newswire. All rights reserved. www.japancorp.net
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