TD-SCDMA commercialization should give priority to the development of high-end data users

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TD-SCDMA commercialization should give priority to the development of high-end data users [Copy link]

All links in the industrial chain are in place

As the TD-SCDMA pre-commercial test enters the friendly user number release stage, the commercialization of TD-SCDMA is getting closer and closer. As all links in the industry chain accelerate their own pace, the commercialization process of TD-SCDMA will be actively promoted.

From the perspective of system equipment manufacturers, as the main forces of the TD-SCDMA Alliance: Datang/Shanghai Bell Alcatel, China Putian/Nokia, Dingqiao and ZTE actively participated in the TD-SCDMA pre-commercial test. These equipment manufacturers conducted comprehensive tests in the laboratory environment of MTNet in the early stage, field tests in Beijing and Shanghai in the mid-term, and large-scale commercial tests in Baoding, Qingdao and Xiamen in the later stage, from the system equipment performance, N-frequency point networking, inter-system switching, services, billing, network management and other aspects. During the test, they continuously adjusted their own equipment and improved the problems encountered in the test, making the system equipment gradually perfect and mature. For the future commercial use of TD-SCDMA, a sound and complete network will be the foundation for development. And this link currently seems to be the most fully prepared among all links in the industrial chain.

From the perspective of terminal equipment manufacturers, with the joint efforts of many manufacturers, TD-SCDMA terminals have formed a multi-vendor supply environment, and a breakthrough situation has been formed for TD-SCDMA terminal chips. However, due to the lack of large-scale actual commercial use, the current TD-SCDMA terminals still face many practical use problems. According to the results of the trial commercial test, TD-SCDMA mobile phones still need to further strengthen research in videophone, 384K service, co-frequency performance, dual-mode, N-frequency points, etc., and breakthroughs in high-end technologies such as HSDPA and HSUPA are needed.

From the perspective of chip equipment manufacturers, the development of dual-mode chips needs to be accelerated. According to the characteristics of my country's mobile market and the successful experience of 3G abroad, the voice service of TD-SCDMA will still be the basic service in my country in the future. However, the voice service requires nationwide coverage and roaming, which is inconsistent with the isolated coverage of TD-SCDMA in the early stage of development. In order to solve this contradiction, TD-SCDMA will consider building a TD-SCDMA network based on 2G/2.5G network in the early stage of development, and its terminals should be dual-frequency dual-mode terminals of 2G/2.5G and TD-SCDMA. Therefore, the development progress of dual-mode chips will directly affect the development of TD-SCDMA network in the future. At present, dual-mode chips are mainly provided by Spreadtrum, T3G, Datang and Kaiming. Compared with T3G, the chips of Kaiming, Spreadtrum and Datang/ADI tend to be more general. Datang/ADI adopts a turnkey solution with high integration of software and hardware, which will greatly reduce the cost of R&D, design and production of mobile phones; Spreadtrum is relatively inclined to the GSM field and also adopts a turnkey solution with high integration; Kaiming has also achieved a high integration solution of hardware and software through certain means.

From the analysis of end users, the awareness of TD-SCDMA among end users is not high at present. However, from the current publicity strategy of operators, operators are gradually shifting from promoting the differences in network technology to focusing on the end user experience. Therefore, it is expected that the future TD-SCDMA construction operators will also follow this user development strategy, starting with strengthening the user service experience and developing end users. Therefore, the future development of TD-SCDMA end users will depend on the TD-SCDMA service itself. End users will comprehensively consider the quality, tariff, content and other aspects of the service and choose the network according to the service.

Strong asymmetric service carrying capacity

The biggest advantage of TD-SCDMA over the other two 3G standards is its strong uplink and downlink asymmetric service carrying capacity. Therefore, when analyzing future 3G services, it is not difficult to find that accurate positioning services, asymmetric mobile Internet services, and PTT, P2P and M2M mobile multimedia services are more suitable for the technical characteristics of TD-SCDMA.

Positioning Services

Because TD-SCDMA uses intelligent antenna and terminal synchronization technology, single base station positioning is possible. Compared with WCDMA and CDMA2000 systems, TD-SCDMA systems can provide more accurate signal source positioning (including wave direction and delay estimation) for single base stations; at the same time, there is no need to add additional GPS modules, which saves costs, simplifies the design, and improves the security of the system. In addition, the positioning speed is faster, the system can provide positioning for more users at the same time, and the positioning accuracy is higher.

Asymmetric mobile Internet services

In wireless transmission, TD-SCDMA relies on its unique operating mode to flexibly select transmission modes according to different transmission requirements, making full use of existing spectrum resources to meet a variety of different needs. The TD-SCDMA system is particularly suitable for asymmetric mobile data applications, which just meets the technical characteristics of applications such as surfing the Internet and downloading.

These multimedia services are all high-end data services. Therefore, whether from the perspective of TD-SCDMA network development or the future profitability of TD-SCDMA, high-end user groups will become the main target of its future development. In order to meet the needs of high-end users, the network construction strategy of TD-SCDMA in the future will inevitably develop from the eastern coastal areas to the central and western regions, and will mainly meet the data needs of urban areas and hot spots. The existing 2.5G/2.75G network will be responsible for covering suburban areas and non-hot spots to meet the data service needs of low-end and mid-end customers.

Cost advantage is not obvious in the initial stage of network construction

With the strong support of national competent authorities and the joint efforts of all member companies in the industrial chain, TD-SCDMA has basically acquired commercial capabilities. Although there are still some problems, according to the development history of 2G, WCDMA and CDMA2000, these problems can be gradually solved in the future network operation and construction process.

The development and maturity of any technology requires an insurmountable process. If TD-SCDMA wants to gain a dominant position in China's future 3G construction, it is particularly important to accelerate its maturity and obtain a relatively relaxed time. Therefore, the industry has always advocated the deployment of TD-SCDMA six months in advance, hoping to gain valuable network commercial experience, accelerate the maturity of TD-SCDMA, and avoid the market position being shaken due to the lack of technical maturity.

Based on TD-SCDMA's advantages in smart antenna and software radio technology, the cost of large-scale construction of TD-SCDMA base stations is relatively low.

On the one hand, due to the use of intelligent antenna technology, the power amplifier part of the base station is on the antenna, avoiding the need to increase the base station RF transmission power due to the attenuation of the feeder system, greatly reducing the demand for high-power RF devices and reducing the cost of RF devices; on the other hand, after TD-SCDMA adopts software radio technology, when the system functions are increased and the technology is upgraded, only the software needs to be upgraded without replacing the equipment hardware, which reduces the cost of system maintenance and upgrades.

The cost advantage of TD-SCDMA will not be apparent in the early stages of network construction. In the early stages of network construction, TD-SCDMA construction and deployment are concentrated in urban areas and hot spots. Therefore, base stations have not yet been deployed on a large scale, and its cost advantage has not been fully reflected. It is unrealistic to hope to gain a favorable market development position in the early stages of network construction by relying on the cost advantage of TD-SCDMA. This advantage can only be better reflected when the network gradually matures and begins to expand.