“China Mobile has started bulk purchasing TD-LTE Terminal, TD-LTE the second phase of the trial will end in June next year. “On November 15, said Hong Kong China Mobile Vice President Li zhengmao. China Mobile TD-LTE first phase of tests have been concluded at the end of September. 7, including Ericsson, ZTE and Huawei network equipment manufacturers to participate in the test, in Shanghai, Nanjing, Hangzhou, Guangzhou, Shenzhen and Xiamen construction of six major cities, more than 850 base station.
Li zhengmao, two-stage tests cover size will be much larger than the stage of testing, “numbers will be determined soon, is in consultation with the city”. In addition, there are many important issues need to be addressed in the two-stage test.
In the Terminal, a staging base dominated by single-mode Terminal. Second phase you will need to test TDD/FDD common mode, including 3G, 2G and common-mode Terminal.
In the next stage of the test, there is also a need to solve the problem is compatibility problem between different devices. “The Chinese market is very large, is not like other countries have selected one or two suppliers is enough. “Li zhengmao said when interviewed by reporters, there are seven scale of devices participating in the test, there are four vendors wait for admission.
“So many of the compatibility between vendors is very important, such as a roaming problem, signal switch problems require coordinated, these are problems faced by other operators are not. “Li zhengmao said.
In addition, the premise of the commercialization of the spectrum resource is TD-LTE. In a stage of the testing process, moving 50 trillion in 2.5G test. “Two-stage hopes in the lower band, dual-frequency testing some of the bands. “Li zhengmao says, for example, 1.9G is the better choice, move is being discussed with the relevant government authorities.
In fact, has a number of operators in the world with regard to TD-LTE faster than the pace of movement. While scale test in moving the world test networks in more than 30 during the same period, it has built a business network, such as Japan, Softbank, and so on.
SOFTBANK on November 1 this year in Japan begins a TD-LTE business. According to SOFTBANK Chief Strategy Adviser Tetsuzo Matsumoto said is expected next year to cover Japan 92% of the population, “FDD LTE SOFTBANK will also do in the future, but we are more concerned about TD-LTE, because data for business, TDD more efficient”.
Li zhengmao said, TD-LTE is more suitable for the mobile Internet era, “past era of voice needs a symmetric signal, FDD was more appropriate technology”, uplink and downlink Internet data service is asymmetrical, often 10:1, asymmetric advantage of TDD is more up and down.
At the same time, due to FDD spectrum shortages, long term, there will be more operators using TD-LTE. ZTE Vice President Wang Shouchen believes that there are three types of operators will become a TD-LTE customer: the first is the same as move, SOFTBANK think TDD is the future direction of the data service; the second is Hutchison Sweden, think the TDD have a higher return on investment than the FDD of third class is like Malaysia’s Packet One, by the Steering TD-LTE of WiMax.
CEO of Packet One Lai Jingda told reporters that he hoped that the move to promote TD-LTE faster, “our relatively small size, hope that China Mobile will start as soon as possible TD-LTE commercial”, so as to achieve economies of scale, helping their equipment, such as the cost of chips down.