November 13 news, comprehensive foreign media reports and MII-related news, is at the "World Radio Communications Conference," has begun to discuss the allocation of WiMAX spectrum, WiMAX and TD-band battle started. China has been named 2.3GHz ~ 2.4GHz frequency band drafting group chairman, received a favorable position for the time being.
7-band WiMAX candidate
Prior to the October 20, WiMAX standard was officially approved as the International Telecommunication Union (ITU) standards for the fourth 3G. Previously occupied as WiMAX may have a core of intellectual property rights in China TD-SCDMA band, therefore, WiMAX in the end in what frequency band of concern.
It is reported that currently held in Geneva, Switzerland, World Radiocommunication Conference (WRC-07) has been discussing IMT-2000 (3G) follow-up systems and IMT-Advanced (4G) of development, which include WiMAX frequency bands.
Candidate of the band actually seven, the ground segment of the 7 candidate program are: 410MHz ~ 430MHz, 450MHz ~ 470MHz, 470MHz ~ 806/862MHz, 2300MHz ~ 2400MHz, 2700MHz ~ 2900MHz, 3400MHz ~ 4200MHz, 4400MHz ~ 4990MHz. The satellite component of the candidate band is 1518MHz ~ 1525MHz/1668MHz ~ 1675MHz. In the current WRC conference, various national and regional telecommunication organizations in their respective countries and regions from the protection of radio services in the perspective of the proposals submitted to the ITU.
Remove the excluded 410MHz ~ 430MHz and 2700MHz ~ 2900MHz frequency, the rest of the 450MHz ~ 470MHz, 470MHz ~ 806/862MHz, 2300MHz ~ 2400MHz, 3400MHz ~ 4200MHz and 4400MHz ~ 4990MHz this 5 IMT candidate bands in the ground, support and opposition IMT frequency, they become divided, stalemate, although the President has repeatedly called upon to make a compromise frequency IMT candidate, but the discussion on the IMT band or the world into the adhesion phase.
One concern is the WiMAX frequency bands. According to some experts had said the carriers hope 2.5GHz WiMAX frequency planning to use the following band, because if the allocation of frequency bands 3.5GHz and above, due to relatively high frequencies, the base station generate the uplink throughput and downlink throughput are relatively small, WiMAX difficult to embody a number of features. Therefore, the current TD-SCDMA uses 2.3GHz ~ 2.4GHz frequency band is eyeing a number of countries, hoping to use the WiMAX frequency bands.
In what the future WiMAX frequencies States is inconclusive, the current national WiMAX trial network band variety. For example, the Federal Communications Commission (FCC) had to 3.65GHz ~ 3.70GHz spectrum allocated to WiMAX, the United Kingdom for the WiMAX distributed 2010MHz ~ 2025MHz, 2290MHz ~ 2302MHz and 2500MHz ~ 2690MHz band, etc..
Temporary access to an advantageous position in China
It is reported that, due to 2.3GHz ~ 2.4GHz frequency band related to the future of China's TD-SCDMA industry, application and development of the world, relations to other countries, the division of this band and application of a national radio management of natural focus of attention. China also attaches great importance to this, Ministry of Information Industry Xi Guohua, vice minister himself went to Geneva to attend the World Radiocommunication Conference.
According to Ministry of Information Industry said the information, since the opening of the General Assembly, issues related to the Working Group has held 30 meetings to consider the frequency of the IMT candidate. China Radio Management to safeguard national interests, the delegation embarked on hard work. Question members of the group to give up evenings and weekends breaks, read through hundreds of pages of technical information, national proposals, positions and views on the state carried out intensive research.
After the Chinese delegation actively seek, in other candidate frequency band is still in stalemate situation, contributed to China's early band 2.3GHz ~ 2.4GHz drafting group was established, and was appointed Chairman of the Drafting Group on the post. This post is very important fight for my future band TD-SCDMA and the international development of space to provide greater voice.
It is reported that the drafting group meeting, the Chinese delegation for non-technical considerations of some unreasonable demands were strongly resisted, expounded China's position.
Some experts said that at present the State has allocated WiMAX frequency band up to about 4 points, far from meeting the large-scale mobile WiMAX network requirements. The frequency of any country on the demand for WiMAX are facing great difficulties and challenges, therefore, the next competition for WiMAX spectrum will be fierce struggle.
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