Huawei today announced the world’s first 3.5GHz LTE-A trial network in Japan. A recent demonstration of the network showed it could support a max 770 Mb/s download speed by making use of LTE-A technologies, reports Fierce Wireless.
The demonstration was hosted by the Global TD-LTE Initiative (GTI) and conducted by SoftBank, the Japanese mobile operator which has invested in Sprint. It was held in Tokyo’s densely urban Ginza district.
SoftBank demonstrated a “five-carrier CA” technology for LTE TDD on the 3.5GHz band using a prototype system that can provide a max 1.2 Gb/s download speed.
By 2015 in Japan, further spectrum from 3.4 to 3.6GHz is expected be allocated for introducing commercial 4G networks. Worldwide, more 3.5GHz spectrum is expected to be released to promote development of mobile broadband services using high spectrum bands.
The FCC will set aside 100 MHz of spectrum in the 3.5 GHz band (3550-3650 MHz) for small cells. The Notice of Rule Making established February 20, 2013 as the deadline for comments and March 22, 2013 as the deadline for reply comments.
By using database technologies of unlicensed whites spaces, the FCC believes it will spur innovation throughout the economy, while protecting incumbent users in the band.
The spectrum is now used by Naval radar systems. But the federal spectrum has been off limits even hundreds of miles inland, even though there was no chance of interference.
The proposed new spectrum rules follow the recommendations of the President’s Council of Advisors on Science and Technology (PCAST) which said spectrum sharing could provide thousands of times the current capacity by reducing inefficiencies.
This figure shows Canada’s 175 MHz of spectrum from 3475 MHz to 3650 MHz, which is broken into 7 x 25 MHz blocks. The blocks are labelled as: D (3475-3500 MHz), E (3500-3525 MHz), F (3525-3550 MHz), G (3550-3575 MHz), H (3575-3600 MHz), J (3600-3625 MHz), and K (3625-3650 MHz). Blocks D and H, E and J, and F and K are paired. Block G is a stand-alone 25 MHz block.