Leading mobile frontier: 3G 4G has not yet landed waving

            


"Lapse seemingly distant future becomes the present," with these words to describe the rapid development of mobile communication technology, very appropriate. China's 3G licenses, although not yet officially issued, but 4G research project has quietly entered the field testing and pre-commercial plans, please pay attention ---

Wireless transmission of HD video and smooth clear program, moving the transmission of wireless network can simultaneously download two movies, and play both high-definition television programs. January 28, Shanghai University of Engineering and Technology officially opened the 4G outfield test system scene, the reporter felt the convenient life 4G era.

According to reports, the ITU basic technical requirements for 4G is on the move to achieve a rate 100 Mbit / s, static and slow-moving state to achieve the rate of 1G bit / sec. Compared with the conventional mobile communication technology, transmission speed can be increased 1000 times 4G.

Responsible for overall project implementation of the project team leader, National Mobile Communications Research Laboratory, Southeast University, director of Xiaohu told reporters: "Shanghai's 4G outfield experimental system consists of three wireless coverage district, 6 access nodes and six mobile terminal composition and the introduction of the world's most sophisticated technology, such as IPv6 core network, IPTV high definition service and mobile communications switching technology, etc. This is the world's first wireless network based on distributed fourth generation mobile communication field experiment system, with support peak rate in a mobile environment for wireless transmission of 100Mbps and high-resolution interactive image business presentations and other functions, field presentation and demonstration in the world are in a leading position. "

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4G outfield experimental 4G system is leading studies of 863 major projects --- "The future of Universal Radio Environment Research Program," the important part, this is referred to as "FuTURE Plan" of major projects started in 2001, in 2001 - 2003 to focus on the development of key technologies research stage; 2003 - In 2006 for the presentation and demonstration phase of system integration; 2006 --2010 years of field testing and pre-commercial stage. The future-oriented research program has attracted Southeast University, Beijing University of Posts and Telecommunications, Tsinghua University, Huawei and other domestic universities and enterprises. Meanwhile, in order to speed up the mutual exchanges and common development of China and the world in the field of 4G, in October 2005, with the support of the Ministry of Science, under the Ministry of Information Industry Development and Reform Commission, also set up a future mobile communication forum for the future of mobile communications technology research international information exchange and technical cooperation provides a platform. Including China Mobile Communications Corporation, Intel (China) Co., Ltd. Research Center, China University of Science and Technology of 26 domestic and international mobile communications manufacturers, operators and research institutions have joined the forum.

Xiaohu told reporters: "If we simply did not have independent patent 1G, 2G is the end of the intervention from the industry, 3G is the end of involvement in the development of technical standards, then 4G research we are involved in five years from the starting end of the development, the most. The key is to form a relatively complete technical innovation framework, basically mastered the key technology for the 4G, the next step to develop commercial products to lay a foundation. "

The "telescope" into reality

Faced with such advanced technology, 4G exactly what the future will bring wireless communications technology environment? Xiaohu hit a vivid metaphor:. "If 2G voice calls to solve the problem, let 'ears' into reality, then 4G will eventually resolve video problems, let 'clairvoyance' into reality," he said, 3G though the video has taken an important step, but does not fundamentally change the wireless structure. Originally developed 3G bandwidth is very limited, so that many users can not use the video is at the same time, while 4G is 10 times the bandwidth of 3G spectrum efficiency is about 10 times, and 100 times the throughput is 3G, the real broadband to the user's hand.

Compared with 3G, 4G although technically achieve a great leap forward, but still represent a professor Xiaohu, 4G and 3G are complementary, and can not be set aside on direct 3G 4G. "4G R & D can better support the long-term development of 3G industry, according to the plan, five years later, 4G only possible standard forming, and then develop products."

Users to experience "immersive"

Video problems may not only describes allow users to feel the 4G wireless mobile communications era has brought life. Xiaohu gave correspondent described the 4G era of mobile application scenarios: "4G will give people real freedom .4G era of phone communication in addition to the completion of the current mobile phone made with high quality voice communications, but also high-definition multimedia communications in 4G era, mobile Internet speed will be 1,000 times now, and 4G phones to download a DVD movie, you need only 10 seconds, this speed ten times faster than 3G. This is 4G can bring real user experience. "

On 4G phone features, Xiaohu also simulated a future simple scenario: If the farm a cow is sick, and the doctor and could not get to the scene, this time on the big pie 4G mobile phone handy! Since the phone is able to transfer any high-definition information, farmers can contact by phone with the doctor, the doctor thousands of miles away can be completely observed by phone cow's disease and timely diagnosis, it seems as immersive. This is incredible now, but in this era of 4G will become a reality.

Dr. FuTURE project system integration testing R & D Wang Ping in the future when it comes to 4G mobile communication technology, said: "In the future, communication will be no time, no place, no moment is not in all circumstances will be covered by a wireless communication system. , and these are seamless coverage. moved from one location to another location between the business is continuous, completely feel less delay time, but also feel less switching between the business and the network. "(Lin Lijun)

When the process of 3G standard TD-SCDMA industrialization of China's independent intellectual property rights more quickly, the official close of business, the state authorities have been closely following the latest developments next-generation communications technology (4G), and to actively participate in technology development and standards, expectations of winning opportunities on 4G.

In mid-January, the Ministry of Information Industry Xi Guohua, vice minister and others to conduct research in Guangdong Province, and visited Huawei, ZTE and other communications companies. Informed sources, at the relevant meeting on January 11, Xi Guohua, expressed the hope that Huawei, ZTE can actively participate in the next generation of standards, and the formation of "4G standard alliance."

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One-way toll interconnection fees generated huge inconvenience Unicom follow
Author: Lin Pro | Source: Sina Technology | Posted: 2007-2-5 | Read
646 timesSAN FRANCISCO, Feb. 5, for Beijing Mobile announced that "starting from February 8 to launch global unobstructed way toll listen 99 business packages" issue, insiders believe that the one-way toll generate huge interconnection charges, Unicom inconvenience of follow-up, therefore, Beijing Unicom in the end whether the introduction of the one-way fee package remains to be seen.

China Unicom will be postponed outgoing one-way toll

It is reported that Global "Hearing the 99" standard tariff package is divided into fourth gear, respectively, 99 yuan, 139 yuan, 199 yuan, 299 yuan four kinds, in which the user when using the package, answer the phone will be completely free, but within the package Caller lowest call charges was only 0.15 yuan / minute, while the domestic long distance charges IP was 0.1 yuan / min. Some experts have analyzed the history of the movement in the introduction of new preferential measures, are each brand linkage program, the introduction of GSM-way package, it is possible to mark the Shenzhouxing and M-Zone will be the emergence of new policies.

Moving to implement one-way toll is bound to make people's eyes on another operator - China Unicom body. This Beijing Unicom has also made a quick response: They will be carefully judged latest situation and make timely "will not let the user down" response. According to information from China Unicom and Beijing Unicom within the company to convey a message that "Beijing Mobile double change a single policy has been announced, we also will soon launch a one-way charging policy to GSM, CDMA user", "present the relevant approval procedures are in full swing in progress. "

Beijing Unicom responsible person also confirmed that Beijing Unicom unidirectional tariff plan is submitted for approval by the program, but the details of the one-way fee reform and China Unicom did not disclose.

There is a great loss for China Unicom

However, at present, "China Unicom up theory" has also been questioned by some stakeholders, mainly, if Unicom follow, will generate huge amounts of interconnection fees, Unicom and negative. Therefore, China Unicom's mentality is very contradictory.

From the past practice of view, once the mobile launch preferential tariff packages, China Unicom will follow under normal circumstances, and will take care of China Unicom's national policies with the foot, "usually 10% -20% cheaper than the mobile tariff." However, according to the facts of view, Beijing Mobile in May 2006 launch Shenzhouxing super smooth listen, China Unicom has been no timely follow-up, so this conclusion remains to be seen.

According to telecom experts, Frost & amp; Sullivan, general manager of China Wang Yuquan said in an interview that the relevant media: If we implement one-way toll, China Unicom is likely to be collapse. Wang Yuquan said, does not mean that no one-way fee settlement between the operators, while the two major carriers in China total users vary considerably, call Unicom's network is mainly hit the mobile network. If the one-way toll, then, China Unicom mobile phone bill can be paid to bring Unicom collapse.

Therefore, all aspects of the situation, the one-way toll road Unicom and some long, there may even be inclined to give the national policy, it does not mean that you can follow up. (


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Reply:
3g 2008 it also, 4g waving to whom?
Reply:
4g begin next year. . What's sovereignty, a brain mess. Strengthen its efforts to come up is the key. /
Reply:
Landlord dreaming it, and now even have a wired broadband mess, speed that is called Mana! ! Also 4G it, I think of you can not wait for that day friends