The earliest appearance time of international 3G.

The third generation mobile communication technology (3G) refers to the cellular mobile communication technology that supports high-speed data transmission.

3G service can transmit voice (call) and data information (e-mail, instant message, etc.) simultaneously. ).

The representative feature of 3G is to provide high-speed data services, and the rate is generally above several hundred kbps.

3G specification is the final development result of IMT-2000 specification formulated by ITU.

The original 3G vision is to use this specification to standardize the global communication system.

At present, there are four 3G standards: CDMA2000, WCDMA, TD-SCDMA and WiMAX.

2001April 16, the first 3G telephone in Britain was dialed through Vodafone network.

Development history

In May 2000, the International Telecommunication Union officially announced the third-generation mobile communication standard, and TD-SCDMA submitted by China officially became an international standard, which, together with WCDMA in Europe and CDMA2000 in the United States, became one of the three most mainstream technologies in the 3G era.

On May 24, 2008, the Ministry of Industry and Information Technology, the National Development and Reform Commission and the Ministry of Finance jointly issued the Notice on Deepening the Reform of the Telecommunication System, encouraging China Telecom to acquire the CDMA network of China Unicom (including assets and users), China Unicom and China Netcom to merge, China Netcom's basic telecommunications business merged into China Unicom, China Tietong merged into China Mobile, and the number of domestic telecom operators changed from five to three.

On June 2nd, 2008, China Unicom submitted an agreement to China Netcom to merge the two companies. Each share of China Netcom will be converted into 65,438+0.508 shares of China Unicom, and each share of China Netcom American Depositary Receipt will be converted into 3,065,438+06 shares of China Unicom American Depositary Receipt.

At the same time, China Telecom will acquire Unicom's CDMA network with a total price of 1 1000 billion yuan.

On July 29th, 2008, China Telecom Group announced that it would invest 80 billion yuan to develop CDMA services in the next three years, and proposed to increase the number of CDMA users from about 43 million to 654.38 billion. By then, its share in China mobile communication market will reach 65.438+05%.

On June 5th, 2008, 10, 18, online celebrity Chip Company was delisted from the HKEx and NYSE.

In August, 2008, the Ministry of Industry and Information Technology issued the "Reply on Agreeing to China Mobile Communications Group Corporation to Carry out Trial Commercial Work", and agreed that China Mobile would establish TD network and carry out trial commercial work throughout the country.

On June 65438+1 October12008, China Telecom and China Unicom started the delivery of C network, which was completed within 60 days.

On June 5, 2008, 5438+00, 15, the new Unicom company was formally established, and the telecom restructuring and reform work at the capital market level was all over.

On February 22nd, 2008, 65438+ China Telecom released the mobile service brand "Tianyi", and paragraph 189 was put into commercial trial in some provinces and cities, and it was fully transformed into a full-service operator.

On June 365438+February 3, 20081,the executive meeting of the State Council passed a resolution and agreed to start 3G license issuance.