Macro understanding of 3G wireless access technology

The development of wireless communication is inseparable from the development of wireless technology. This article mainly introduces 3G wireless access technology in a systematic manner. It mainly analyzes and introduces 3G wireless access technology in a large environment. I hope you can find what you need.

With the gradual popularization of 2.5G/3G wireless access technology, mobile services are rapidly evolving from voice applications to grouped data-dominated applications, people are familiar with the terms of applications, services, and services, but there are also some confusions and misunderstandings: what kind of impact will this evolutionary process have on the operator's positioning role, further research and discussion are required for the changes to the business that the end user can obtain and how the mobile network architecture will be adjusted to achieve this evolution.

Functions provided by the network and requirements of end users

The UMTS/WCDMA network structure based on 3 GPPRel 99 is similar to that of the GSM/GPRS network. The 3G basic network can provide the following services: for traditional Voice services/faxes/text messages (Voice/Fax/SMS), most of the GSM Voice supplementary services will continue to support Bearer services (Bearer) in 3G networks. Circuit Switching: maximum 64 kbit/s (multiplexing by multiple time slots, maximum 6 × 64 k), group switching type: Maximum 144 kbit/s ~ 2 Mbit/s (supporting different QoS levels), Circuit Switched video conferencing (based on H.324 ).

For end users, most of the above services can be used directly, such as voice and text messages. In addition, some commercial users can directly use the terminal as a Digital Modem to connect to the PC. However, for most end users, they are more interested in how to use wireless Internet-based content-based services, such as multimedia messages and portals), multimedia calls, positioning services, mobile e-commerce, and so on.

Enable Technology Platform concepts

Obviously, most of the above content-based businesses simply rely on 3G infrastructure networks, and must be supported by other business platforms. We call it enablingplatform ), A large number of value-added content applications (developed by third parties or carriers) will be implemented based on the enabling platform. In 3G environments, currently, the enablement Technology Platforms available can be roughly divided into four categories: WAP platform, multimedia information transmission platform, location-based application platform, and mobile e-commerce platform, with the development of terminal performance and wireless technology, more enabling technologies will be introduced. The enabling technology platform is not a completely new concept. It is similar to the middleware concept, it is between the mobile basic network and a third-party content provider (ICP. This concept of network layering aims to hide the wireless access technical details of mobile networks, so that third-party developers do not need to be exposed to the technical details of 3G wireless access, the development of value-added applications is based on common standard APIs (Java/XML), which greatly accelerates the process of application development.

Operators' Role Changes in the future

In the 3G environment, how do carriers make a correct position? It is a 2G model. While providing telephone services, the data bearer service is provided only as a data pipeline (bitpipe) to external service providers, or is it responsible for all the work, are all content development tasks completed by the operator?

Obviously, the positioning of the former is too simple and extensive, and the operator's business control capabilities are weakened, so it cannot form brand cohesion, the latter may fall into a thankless situation-it is hard to imagine that the news services provided by mobile operators will surpass professional content providers. Therefore, we believe that the real focus of mobile operators in value-added content services is to build a series of enabling platforms and design new business types on this basis, through a reasonable revenue share model, a large number of content providers can develop a variety of value-added services based on the enabling platform as soon as possible, so as to attract a large number of end users and build a complete ecological chain.

For example, Nokia's recently released mobile payment center solution is an enabling wireless access technology platform that helps operators build a mobile commerce system. In the traditional Internet environment, e-commerce websites must develop their own payment platforms, and payment methods are varied. End users often give up their shopping plans due to lack of payment methods. After a carrier establishes a mobile payment center, when a user browses a business website and decides to purchase a product, the website only needs to query the mobile payment center (through the standard SOAP/XML interface ), after the payment center confirms the user's account information, the website completes the shopping process. The fees can be uniformly charged by the mobile operator in the monthly bill.

The bottleneck of 3G wireless access technology is how to create attractive businesses and combine operators, content providers, and end users. In particular, how can operators and content providers handle their respective roles and responsibilities, is one of the challenging tasks.