With China Mobile TD-SCDMA (hereinafter referred to as "TD") four tenders in full swing, TD largest in the history of network construction is about to pull off the end of this year TD network will basically cover all the cities, into commercial operation phase of the fast lane. At the same time, TD-LTE and NGMN in the Shanghai World Expo Shanghai during the General Assembly's stunning debut, and the end of the year will usher in a number of pilot cities the size of one hundred field station network construction, in that TD-LTE is coming. This makes the TD in today's large-scale development, we must take into account the smooth evolution to future needs, in order to achieve TD from the network to the sustainable development of the industry level. It is not hard to explain why China Mobile TD 4 tender, smooth evolution to become a hot topic of the parties concerned, broadband RRU is a focus of contention.
TD and TD-LTE will be the effective integration of complementary and coexist
Although the TD-LTE's footsteps getting closer, but still large-scale development of TD can not be crossed is a stage. In addition, in accordance with the law of development of the market, even if the TD-LTE commercially, the two will coexist for a long.
On the one hand, TD scale TD-LTE development will lay a solid foundation and do business before the industry, the user is ready. Wu He Quan, vice president of China project in interview with this reporter when China Mobile to give this advice: continue to vigorously promote the development of TD, the accumulation of more market experience and user experience, for TD-LTE development to lay a good foundation. He also believes that, in the TD phase, China's telecommunications industry, manufacturing, terminal, chip, software and other companies to significantly accelerate the pace of innovation and development, to seize the historical opportunity to enhance the competitiveness of the TD-LTE time to achieve good performance in advance to do more good preparation.
On the other hand, TD-LTE, although the introduction of the inevitable trend, but also through a gradual process, steady fast development strategy is the most basic, it is bound to long-term coexistence with the TD.
TD TD-LTE is based on the continued development and evolution of the product of TD industrial real success, to the international advanced stage, can be said that the success of TD-LTE is the sustainable development of the TD industry witness. Wu Hequan that, TD-LTE standard on the first play of the TD has been the key advantages of using the Chinese autonomous core patents; In addition, TD-LTE success will prove that China can achieve sustainable innovation. It is noteworthy, TD largely remain in the future development of China's market-oriented, while the TD-LTE will have the strength to achieve international expansion, so the era of innovation from the TD gene in the broader market showed more large as.
In the process of TD-LTE industry steadily while, TD will continue to serve the fast-growing user. Wu He Quan expected, TD-LTE commercial no earlier than 2012, even if commercial, the network will coexist with TD for a long time. Ministry of Industry also said Cao Shumin, vice president of telecommunications research, "TD and TD-LTE is a complementary relationship between the co-existence, even if the maturity of TD-LTE, TD does not mean there is no living space, as large-scale commercial TD a, GSM will be developed, they are not in conflict. "Cao Shumin that the promotion of any new technology requires a process, the user's habits have to gradually build, TD-LTE commercialization to steady of speed; TD network architecture, background support, operations and TD-LTE is similar, TD networks excellent network planning and network operations experience will be TD-LTE development of a valuable asset.
Broadband RRU resolve "put together" problem
Scale development of TD, TD-LTE will lay a solid foundation and provide valuable experience. The emergence of broadband RRU TD, epoch-making significance, completely changed the TD has been plagued by construction and operation and maintenance network in the process of RRU products "patchwork" pattern too many sites for demanding, high cost and other issues, so TD play a real spectrum advantage of rich resources, large-scale development of TD paved the way, but also the arrival of the TD-LTE ready.
TD spectrum of scattered, large span determined by the characteristics of the traditional narrowband RRU has been unable to meet the long-term development needs. TD appearance from the Chinese market, it has been awarded the A, F, E-band, there may be other bands future increases coming. This makes the TD on the one hand have a rich spectrum of resources to meet the expansion needs to carry more users, it is advantage. On the other hand, TD spectrum resources, although abundant, but there are scattered, large span of issues, and to save the cost of network construction and operation and maintenance costs, TD network RRU different from the other two must deal with the challenges of 3G standard : to have F, A, E and even more bands follow-up cross-band network capabilities, we need to meet indoor and outdoor different application scenarios. The resulting direct result, can only be achieved because the traditional RRU span 20MHz ~ 30MHz of the "narrowband" amp capacity, so to achieve greater span of multi-band network, "narrowband" RRU only through a simple "addition" to complete, which makes the RRU device presents a complex and diverse combination of form, almost every phase of TD-SCDMA network construction, there will be many new products emerging patchwork type RRU, RRU is currently the main manufacturers of products in general form has reached ten Several much. This not only led to the deployment difficulties, follow-up operation and maintenance is very complex, but also to promote these products suffered a short life cycle, "transitional" features the obvious question: When a new TD-band adjustment, "patchwork-type" RRU must be with The re-deployment.
TD broadband RRU, a revolutionary breakthrough, a fundamental form of the RRU products to achieve a cure, and simplified to two to three kinds, so completely out of the narrow-band TD RRU previously encountered difficulties. Because of this, broadband RRU will no doubt become a TD four tender benchmark products, and even re-define the TD TD-LTE era of the RRU product features, leading the industry trend of broadband radio frequency. In fact, although many companies have already seen this trend, launched a broadband RRU's research and development, but in the field of mobile communications radio for many years, Huawei has accumulated, but deserved to be a leader. Based on MCPA (Multi Carrier Power Amplifier, multi-carrier power amplifier) technology, Huawei has launched in April this year to support the industry's first 150MHz band is greater than the span of broadband TD RRU products, so that different combinations of band patterns from the original dozen devices significantly reduced to two to three kinds, to achieve a TD form of a simplified base station equipment and curing, thereby greatly reducing the TD base station equipment deployment and maintenance more difficult, but also help enhance the RRU of the TD-SCDMA network in the maturity of key equipment and reliability.
Broadband RRU real smooth evolution
Evolution from TD to TD-LTE, if you need large-scale replacement of hardware, obviously can not be called smooth evolution. From this perspective, the broadband RRU not appear before the true sense of the smooth evolution is difficult to achieve.
TD has completed the three-building, and the forthcoming four-building, involving replacement of large-scale multi-vendor equipment to bring the industry to adjust to an important revelation is that the network must pay attention to the long-term development, product life-cycle transition not too long, the price we pay can be described as huge. The emergence of broadband RRU, RRU narrow band not only changed in the past can only be a transitional product "fate" and with a strong cross-band network capability in TD-LTE time to continue to play a role. In the TD to the TD-LTE's evolution, despite the introduction of a new band, but broadband RRU enables operators do not need to re-fit the new band to form a new wireless access network, only the need for software changes and upgrades, will be able to support the TD-LTE, which is undoubtedly effective for operators of investment protection is truly smooth evolution.
In the TD and TD-LTE coexistence phase, not only to support broadband RRU network integration, but also shared by completely different bands such as RF output power and carrier system resources, system resources to achieve a flexible configuration to meet specific business operators needs. This on-demand and dynamic configuration to achieve the most efficient use of resources, but also to the development of different operators in the business to be more handy. For example, in the early stages of TD-LTE development, the main RRU resources can be allocated to the user has reached a certain scale TD-SCDMA network; along with the TD-LTE market expansion, RRU resources go along with tilt.
It is noteworthy that broadband RRU as TD 4 tender in one of the highlights, not only multi-band network in the TD, smooth evolution, and TD-LTE fusion group online to play a strong vitality, but also for the operators expenditure saving. In addition to savings in equipment replacement cost, the latter part of the operation and maintenance cost savings will also be a big number. RRU products with Huawei's broadband, for example, compared with traditional multi-piece band based RRU, its performance has significantly improved the number of devices can be reduced by 40%, 60% failure rate has dropped more than 20% reduction in energy consumption , volume weight reduced by 30% or more. Its stable and reliable, green energy, rapid deployment, and many other obvious advantages, operators will inevitably reduce the pre-and post expenses for the entire industry's long-term sustainable development of TD can be described as a huge significance.
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Send date: 2010-10-05 22:41