Mobile rush to get rid of TD unfavorable situation gets LTE

LTE concept stir 4G boom rush to get rid of TD-SCDMA development unfavorable situation Mobile gets LTE it times reporter Qianlifu This issue guest Zengjianqiu Beijing University of Posts and telecommunications Professor Xin Zhan Red Peking University of Posts and telecommunications Professor LTE and 4G is no doubt the hottest in the communications industry now Topic. At the recently concluded World Mobile Communications Conference in Barcelona, China Mobile's chairman, Mr Wang, said it would be the first year of LTE business, with 9 foreign operators signing a cooperation agreement with China Mobile.　　At the same time, ITU is likely to finalize the 4G standard in early 2012, while the China-led LTE Advanced (TDD) is highly likely to become the international standard for 4G mobile communications. Domestic 3G heat has not faded, 4G heat and then set off. Why is China Mobile so active in pushing this trend? When will 4G be on the horse?　　Is the timing not so good that 3G of investment will not be made water drift?　　LTE is not 4G now many people refer to LTE as this is 4G, China Mobile chairman Wang said this year will be LTE commercial, some people think that 4G business will soon be able to carry out, in fact, is not the case. "LTE is strictly 3.9G, but also within the standard category of 3G, but it is close to 4G, and lte-advanced is 4G." Mr Wang says it is the first year of LTE business and does not mean that 4G is here. Professor Song Rongfang, a communications and information engineering expert at Nanjing University of Posts and telecommunications, said that from the 802.16m and lte-advanced two standards for the 4G standard of contention, lte-advanced more and more show the advantages, "many countries operators and equipment manufacturers,　　The terminal operators express support for lte-advanced ". Zengjianqiu, a professor at Beijing University of Posts and telecommunications, also said that LTE is a technical direction for LTE, "as the scale of the user expands, the spectrum resources become more and more tense, LTE advanced becomes the choice, the future 4G standard most likely is TDD."　　"LTE rash has hidden worries in the domestic three operators, China Mobile treatment of LTE's attitude is the most positive, not only chairman Wang in a number of occasions to publicize LTE, and China Mobile has launched a nationwide coverage of the 6 major cities LTE scale test work, reportedly will cover 50 million people. "China Mobile actively promote LTE, it should be a reason, because compared to the other two operators 3G standard, the Chinese mobile TD-SCDMA in the 3G network coverage, terminal development and other aspects of the performance is relatively backward, not mature," Professor Song Rongfang, so moving the urgent want to jump to LTE even 4G, This can get rid of TD-SCDMA to their own adverse effects. "The demand for LTE from the other two operators is not very large, because the 3G business is steadily advancing and will give himBring the corresponding benefits. "The University of Posts and Telecommunications Economics and Management Institute Xin Exhibition Red Professor also expressed the same point of view, he said:" Mr Wang's stance does not mean that LTE will be commercially available in China this year, but to explain the urgency of moving. Mobile in the 3G technology by telecommunications and Unicom first step, resulting in the mobile 3G today in an awkward position, so they are eager to get through the LTE, to dump TD-SCDMA 3G network to bring their own unfavorable situation.　　Xin Zhan Red said that the other two operators are busy developing broadband, solid migration integration, busy integration of resources to develop users, is not in a hurry to build LTE. Professor Song Rongfang says the move to boost LTE's mood is understandable, but not too hasty. Earlier, the two-bit TD-SCDMA experts Lin and Dingshou in the media interview also expressed a hint of concern. Professor Dingshou of Nankai University suggested that in the TD-SCDMA network is far from perfect conditions, LTE test network layout should not spend too much energy, only as a knowledge reserve, the current focus is still to be placed on the 3G construction.　　And Professor Lin also said that even if LTE international identity, but the local industry chain does not grow, then 4G market has to be given up.　　4G here, and 3G? LTE came, 4G also to come, 3G there is room for survival and development?　　Can 3G of investment be recovered? "I have such a worry, I think the state authorities should be very good to grasp the time of 4G," Professor Song Rongfang said, 4G on the horse can not be premature, otherwise 3G business has not been carried out for several years, it is necessary to face and 4G competition, a large number of investment costs will not be recovered. "From the current 3G to LTE, lte-advanced is not smooth evolution, need to rebuild the network and a lot of investment." If all or most of the investment is not unimpressed, it is a waste of national resources. However, Professor Song Rongfang that even if LTE can be commercially available in the short term, it is unlikely to be launched for a 4G period. "According to the development process of 3G in China, from standard to formal commercial, about 10 years, in 4G I want to have 5-10 years to large-scale promotion." Song Rongfang said that the relevant departments should take into account the various factors to determine the right time to launch 4G. "Like now 3 operators to build 3 net is actually a waste of resources, 4G horse after the country can use a network, saving resources, but can not let the previous 3G investment waste." Professor Zengjianqiu said that the standard of the global 3G business process, from 1995 standards to start in 2000 business took 5 years, and 4G should not take so long, "this year set the standard, perhaps before and after 2012 can be issued licences." At the same time, he said, even if the 4G horse, 3G investment will not be wasted, as now 2G, 3G coexistence, 3G, 4G can coexist.