DOCOMO and Huawei confirm LTE network over unlicensed spectrum

August 21, 2014

NTT DOCOMO 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 countries today.

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 broadband."

"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 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 .

Explore further: Field experiments of 4G LTE-advanced system underway

Related Stories

Field experiments of 4G LTE-advanced system underway

February 7, 2011

NTT DOCOMO announced today that on January 27 it was pre-licensed by the Kanto Bureau of Telecommunications of the Ministry of Internal Affairs and Communications for field experiments of LTE-Advanced, a true fourth-generation ...

Successful active antenna connection test for LTE base stations

February 22, 2013

NTT DOCOMO, Japan's leading mobile operator and provider of integrated services centered on mobility, announced today that it has successfully connected an active antenna, a device expected to be widely used in LTE and LTE-Advanced ...

Samsung launches world's first broadband LTE-A smartphone

June 19, 2014

Samsung Electronics today announced the Galaxy S5 Broadband LTE-A, a new smartphone featuring an advanced multimedia experience and the fastest download, web browsing, multimedia streaming and application loading speeds. ...

Recommended for you

Battery technology could charge up water desalination

February 4, 2016

The technology that charges batteries for electronic devices could provide fresh water from salty seas, says a new study by University of Illinois engineers. Electricity running through a salt water-filled battery draws the ...

Researchers find vulnerability in two-factor authentication

February 3, 2016

Two-factor authentication is a computer security measure used by major online service providers to protect the identify of users in the event of a password loss. The process is familiar: When a password is forgotten, the ...

EU and US reach new data-sharing agreement

February 2, 2016

The European Union and the United States struck a deal Tuesday over data-sharing that will allow the likes of Facebook and Apple to continue sending people's information across the Atlantic—but a legal challenge to the ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.