Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
NTT DoCoMo reports speeds of 1Gbps over wireless networks
Posted on 17-Dec-2004 20:50 | Tags Filed under: News



NTT DoCoMo, Inc. has achieved high-speed packet transmission of up to 1 Gbps data rate in the downlink. The experiment is part of a laboratory testo on using fourth-generation (4G) mobile communication radio access equipments. The achievement was registered on 20 August but information was only now released.

The implemented 4G radio access equipments employ variable-spreading-factor spread orthogonal frequency division multiplexing (VSF-Spread OFDM) radio access method and multiple-input-multiple-output (MIMO) multiplexing technique using new signal detection algorithm in order to achieve 1Gbps data transmission with 100MHz bandwidth in the downlink.

DoCoMo achieved 100Mbps and 20Mbps data rate transmission in the downlink and uplink, respectively, in the outdoor environments with the moving speed of about 30 km/h in July 2003.

NTT DoCoMo is currently conducting indoor tests with various radio conditions as preparation for future field tests to develop a 4G global standard in coordination with the International Telecommunication Union Radiocommunication Sector. In Japan, the telecommunications council of the Ministry of Internal Affairs and Communications is overseeing efforts to develop technologies for 4G commercial services by 2010.

The announcement comes a few days after the British operator mmO2 released information of an experimental high speed wireless network based on HSDPA, to be deployed in the Isle of Man.






comments powered by Disqus


Trending now »

Hot discussions in our forums right now:

The President Of The USA: Donald Trump
Created by TimA, last reply by tdgeek on 24-Apr-2017 13:43 (4040 replies)
Pages... 268 269 270


The case for mandatory internet filtering
Created by shanehobson, last reply by freitasm on 24-Apr-2017 10:26 (66 replies)
Pages... 3 4 5


New Immigration Changes
Created by Oriphix, last reply by joker97 on 21-Apr-2017 21:01 (40 replies)
Pages... 2 3


Victim Impact Statements
Created by robcreid, last reply by dejadeadnz on 20-Apr-2017 20:08 (33 replies)
Pages... 2 3


Need Help With Unstable Broadband on Old Exchange
Created by da5id, last reply by da5id on 24-Apr-2017 15:27 (15 replies)

recommend me a ADSL 2+ modem?
Created by tommyboy, last reply by ubergeeknz on 24-Apr-2017 07:33 (31 replies)
Pages... 2 3


Spark move to IP-based voice
Created by freitasm, last reply by old3eyes on 22-Apr-2017 07:38 (61 replies)
Pages... 3 4 5


New home build. Lots of technology to go into it
Created by Talkiet, last reply by darylblake on 23-Apr-2017 14:32 (29 replies)
Pages... 2