November 27, 2021

TD-LTE won the grand prize to establish the direction of China's 5G development

The current 5G standard is still in the game, but in general, there are basically two directions, one is frequency division technology, the other is time division technology, the former is dominated by European Ericsson, the latter is China's TD-LTE The continuation, but China has always been in dispute, this TD-LTE won the 2016 National Science and Technology Progress Special Award can be said that China will evolve along TD-LTE to 5G.

5G standard debate

The competition of 4G standards is basically familiar to everyone. At that time, China and Europe jointly promoted LTE technology to become 4G standard. However, due to the interests of Intel and Qualcomm, it is difficult to unify the two companies. Finally, the two companies launched their respective 4G technologies, but eventually both failed. LTE technology is divided into European-led LTE-FDD and China-led TD-LTE.

However, the global market mainly adopts LTE-FDD. China's two operators, China Unicom and China Telecom, also mainly operate this technology, which makes it a de facto international standard. In fact, LTE-FDD is compared to TD-LTE. It does have its advantage, that is, it can better support high-speed moving scenes, but the drawback is that it needs a pair of spectrum.

TD-LTE technology is mainly used by China Mobile, but with the largest number of users it has, TD-LTE has accounted for 40% of global 4G users. Under the efforts of China Mobile, TD-LTE finally proved that it can support large-scale commercial, can support high-speed mobile scenes such as high-speed rail, and some experts in China have counterattacked the technology.

The global 5G standard debate is mainly about China's TD-LTE technology, and LTE-FDD has evolved to 5G without suspense. Ericsson has established Ericsson as a leader, and Ericsson has publicly supported the evolution to 5G along LTE-FDD. Because it does not have its own chip business, American chip company Qualcomm is increasingly aware of its patents on 4G and 5G standards. The decline in voice, as well as the lessons learned from the 4G standard, has shown an attitude of cooperation with Ericsson.

At present, China seems to be in dispute. Many domestic communication companies and experts believe that the 5G standard will be unified. In the case that European and American companies tend to support their LTE-FDD evolution to 5G, this so-called unified 5G standard is undoubtedly abandoning China. With its own TD-LTE technology, it has promoted LTE-FDD evolution to 5G with European and American companies.

TD-LTE wins grand prize to establish China's 5G development direction

The National Science and Technology Awards Conference of the People's Republic of China is held once a year. The conference awards the highest scientific and technological awards in the country. The TD-LTE award for special awards undoubtedly proves the status of the technology and will end Chinese communication companies and experts on TD-LTE and LTE-FDD. The debate has determined that China will develop 5G standards based on this technology.

China has formed a complete industrial chain of communication equipment, chips and terminals. It also has its own unique patent advantages in TD-LTE, in frame structure, intelligent multi-antenna transmission, TDD system synchronization, large-scale co-frequency The network has accumulated a very rich patent and is a global leader. China has evolved to 5G based on TD-LTE technology. It can extend these accumulated patent technologies to 5G, enhance China's voice in 5G, and enhance China's communications industry worldwide. The influence, not the patents of European and American companies.

Some experts talked about TD-LTE when it always amplifies its shortcomings and deliberately ignores its advantages. In fact, any technology must have its advantages and disadvantages. However, the future of determining a standard is not only technology but also the market. Just as CDMA in the 2G era is obviously superior to GSM, but because Qualcomm charges expensive patent fees and it does not Willing to open, China finally chose GSM and the technology quickly defeated CDMA to become the de facto most popular 2G standard in the world.

At present, TD-LTE has proved its development prospects. Especially in the case of the upcoming Internet of Things era, which requires a large amount of spectrum to support a large amount of data transmission, TD-LTE will highlight its value. China decided to base its TD. - LTE's development of 5G technology will help drive it to the world.

China has the largest number of mobile phone users in the world, and also has the world's largest mobile communication base station, which is larger than the two large markets in Europe and the United States. After the establishment of TD-LTE to 5G, it can quickly become large-scale. The 5G equipment, chips and terminals based on time-division technology have matured and reduced costs, and then went to the international market, becoming the de facto international standard, winning more voices of the 5G standard, and no longer subject to people.

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