Wireless competition: the development of wireless broadband access technology

Broadband is undoubtedly one of the network standards that people are pursuing. When dial-up surfing is adopted and broadband is gradually popularized, we can predict the development of today's wireless networks, wireless Broadband Access technology will eventually become the most popular wireless network technology.

Broadband Wireless Access is favored by the industry for its fast and flexible networking and easy upgrade. However, there are still many problems such as the establishment of practical profit models. In recent years, due to Wireless Fidelity (Wi-Fi), WiMax (Worldwide Interoperability for Microwave Access) and other broadband Wireless technologies have the advantages of high Access rate and low system cost, this makes it possible to replace 3G with Wi-Fi and WiMax. However, in terms of coverage domains, rate capabilities, basic business types, and the evolution of forward expansion, wireless broadband access technologies such as WLAN and WiMax are more likely to Supplement 3G, rather than competitors. The development of new technologies is inseparable from the corresponding applications. Domestic and Foreign Telecom Development practices show that new technologies cannot reflect value without being applied in the market, and the development of new technologies will inevitably lead to a bubble. Correct handling of the relationship between technology and the market, and establishing a development model to meet market needs should also become the idea of broadband wireless communication technology.

Communication Operators all expect broadband access as a growth point, but the development results are not satisfactory. At present, the biggest problem encountered in the broadband wireless access market is that there is no effective profit model yet. Therefore, carriers, equipment suppliers, and content providers must seek a balance of interests to establish close win-win cooperation, form a sound interaction between upstream and downstream links of the industrial chain.

Development of Wireless Broadband Access Technology

For many household and commercial customers, broadband access through DSL or wired infrastructure is still not feasible. Some customers cannot obtain broadband cable infrastructure support beyond the DSL service scope. However, these problems can be solved by using wireless broadband access technology. The wireless broadband access technology provides faster network deployment, stronger scalability, and higher flexibility. Therefore, it can provide services for customers who are unable to enjoy or are not satisfied with their wired broadband access. Currently, the mainstream wireless access technologies include 3G, Wi-Fi, and WiMAX.

1. WiMAX technology

WiMAX can provide "last mile" broadband connectivity in a wider region than Wi-Fi, and support T1 services and DSL access capabilities. With its 3 ~ 10 km coverage, WiMAX can provide better mobility for high-speed data applications. In addition, with this coverage and high throughput, WiMAX can also provide transmission for telecom infrastructure, enterprise parks, and Wi-Fi hotspots.

WiMAX will be deployed in three phases. The first phase is to deploy WiMAX technology using the IEEE 802.16d Specification through indoor antennas. The target user is a known user at a fixed location. In the second stage, a large number of indoor antennas will be deployed, broadening the attractiveness of WiMAX technology to operators seeking to simplify user site installation. In the third stage, the IEEE 802.16e specification will be released. In this specification, WiMAX-certified hardware will be applied to portable solutions. For users who want to roam in the service area, it supports similar Wi-Fi capabilities, but more persistent and stable connectivity.

2.3G Technology Development

3G is an ITU specification that supports high-speed wireless communication. This global wireless connection is compatible with GSM, TDMA, and CDMA. The next generation 3G cellular service can provide a remote wireless access range for voice and data. The maximum speed is 2 Mbps. Currently, device manufacturers generally achieve a rate of kbps. The next generation of 3G cellular service can create a wide range of data access across regions to provide the most ideal capabilities for voice communication and Internet connections.

HSDPA is the product of the future 3G development. telecom operators have always followed the idea of higher mobile transmission rates. Its speed can reach 10 Mbps, whereas the heat da technology promoted by Nokia, Ericsson, NEC, Qualcomm, and other companies, as well as the WiMAX technology promoted by Intel, all provide the capability to greatly improve the transmission speed of mobile data.

From a technical perspective, HSDPA focuses on mobile data and voice services. HSDPA wants to make a difference in the wireless broadband access technology market.

3. Wi-Fi technology

Wi-Fi technology includes approved IEEE802.11a, B, and g specifications and 802.11n specifications awaiting approval. Wi-Fi is the first high-speed wireless technology widely deployed, it is particularly eye-catching in global hot spots-including home and office as well as an increasing number of coffee houses, hotels and airports, Wi-Fi hotspots, and almost all over the world, in addition, because of its ability to improve work efficiency, it is sought after by people traveling outside. However, the range of Wi-Fi is very limited: users can achieve high-speed connection only when they are 100 metres away from the Wireless Access Point device (AP. At the same time, there are only three available frequency points, and the available rate of a single frequency point is only about 5 Mbps, which is difficult for intensive network deployment of large capacity. Recently, some platforms support multiple Wi-Fi standards (such as 802.11a, B, and g) to support compatibility between several wireless networks, it provides support for intensive network deployment with large capacity.