News
 

Bookmark and Share

(2) 

NTT Docomo, Japan’s leading mobile operator, in a joint outdoor experiment conducted recently with the Tokyo Institute of Technology succeeded in the world’s first packet transmission uplink rate of approximately 10Gb/s. The test, which is expected to help pave the way for future super-high-bit-rate mobile communications, took place in Ishigaki City of Okinawa prefecture, Japan.

In the experiment, a 400MHz bandwidth in the 11GHz spectrum was transmitted from a mobile station moving at approximately 9KM/h. Multiple-input multiple-output (MIMO) modules were used to spatially multiplex different data streams using 8 transmitting antennas and 16 receiving antennas on the same frequency.

In light of the squeeze on remaining frequencies as mobile data traffic continues to increase, NTT Docomo aims to achieve a transmission speed of more than 10Gb/s using super-high-frequency bands exceeding 5GHz. Such high frequencies have been difficult to use for mobile networks due to the limited distances their waves are able to travel, especially along indirect paths such as around buildings. This is why more robust lower-frequency waves have been the preferred choice for mobile communications systems so far.


Mobile station

The technologies behind the experiment also are applicable to downlink packet transmissions, suggesting that it should be possible to achieve a 10Gb/s downlink, which is one hundred times the 100Mb/s maximum rate of NTT Docomo’s current Xi 4G/LTE service.

NTT Docomo’s research and development initiatives have made news numerous times over the years, including for field tests that achieved downlink maximum speeds of 2.5Gb/s on December 14, 2005 and 5Gb/s on December 14, 2006.


Inside mobile station

Tags: NTT Docomo, 4G/LTE, 4G, LTE

Discussion

Comments currently: 2
Discussion started: 03/01/13 04:18:55 AM
Latest comment: 03/01/13 02:28:05 PM

[1-2]

1. 
I'm interested to know what range was achieved, as well as the signal attenuation.
0 0 [Posted by: linuxlowdown  | Date: 03/01/13 04:18:55 AM]
Reply

2. 
2005: 2.5 Gb/s
2006: 5 Gb/s
2013: 10 Gb/s

That bodes well....
0 0 [Posted by: bluvg  | Date: 03/01/13 02:28:05 PM]
Reply

[1-2]

Add your Comment




Related news

Latest News

Monday, April 14, 2014

8:23 am | Microsoft Vows to Release Xbox 360 Emulator for Xbox One. Microsoft Xbox One May Gain Compatibility with Xbox 360 Games

Tuesday, April 1, 2014

10:39 am | Microsoft Reveals Kinect for Windows v2 Hardware. Launch of New Kinect for Windows Approaches

Tuesday, March 25, 2014

1:57 pm | Facebook to Acquire Virtual Reality Pioneer, Oculus VR. Facebook Considers Virtual Reality as Next-Gen Social Platform

1:35 pm | Intel Acquires Maker of Wearable Computing Devices. Basis Science Becomes Fully-Owned Subsidiary of Intel

Monday, March 24, 2014

10:53 pm | Global UHD TV Shipments Total 1.6 Million Units in 2013 – Analysts. China Ahead of the Whole World with 4K TV Adoption

10:40 pm | Crytek to Adopt AMD Mantle Mantle API for CryEngine. Leading Game Developer Adopts AMD Mantle

9:08 pm | Microsoft Unleashes DirectX 12: One API for PCs, Mobile Gadgets and Xbox One. Microsoft Promises Increased Performance, New Features with DirectX 12

3:33 pm | PowerVR Wizard: Imagination Reveals World’s First Ray-Tracing GPU IP for Mobile Devices. Imagination Technologies Brings Ray-Tracing, Hybrid Rendering Modes to Smartphones and Tablets

2:00 pm | Nokia Now Expects to Close Deal with Microsoft in Q2. Sale of Nokia’s Division to Close Next Month