subject: Practice From The North American Wireless Broadband Operator Trend-hspa, 3g, Wimax-communications [print this page] With HSPA +, UMB and WiMAX and other 3G technologies such as enhanced technology continues to mature and develop, the wireless cellular network to provide bandwidth of increasing operations. The popularity of intelligent terminals, but also makes the wireless communication network applications ranging from simple voice messaging business model to add more extensive mode of development of Internet applications, wireless communications, growth is the core from a voice to broadband multimedia applications to the core business The mobile Internet paradigm shift. Recently, China's leading telecommunications and other technical experts Hui-Ling Zhao went to North America, in-depth understanding of the local wireless communications industry and the dynamic cutting edge technology, and made a profound insight.
According to the survey, the main application of the current Internet there are search, email, instant messaging, download, upload and blog and so on. Such as Apple's iTunes, as of now there are 1.5 billion song downloads every week there are 120,000 movies downloads; YouTube in June this year there are 2.5 billion video viewing capacity, while there are 65,000 videos a day were upload; network game World of Warcraft, there are 7 million online users; Skype has 110 million registered users; msn 2.4 million active users; so. These common Internet applications on wireless networks set a higher requirement: online games, VoIP and other services on the network in real time and guarantee a higher QoS requirements, and video upload, blog and other services they require network has high upstream bandwidth.
With the wireless broadband business development, wireless communication network in the network evolution and technology development, the following trends emerged.
EVDO Rev.A is not beyond the phase of CDMA
Present, the mainstream of North American CDMA operators in the CDMA network will be upgraded to EVDORev.A version. If VerizonWireless, currently has about 60% to 70% of the base stations to upgrade CDMAEVDO and 1x dual-band base stations, its EVDO network has covered 242 cities and 180 airports, around 208 million people. Verizonwireless plan in a few months to upgrade all of the base station to EVDORev.A versions, covering 260 million people. SprintNextel starting in 2006, will also be upgraded to EVDORev.A version of the CDMA network and plans to the end of this year, will EVDORev.A network covers 225 million people. Canada's second-largest telecommunications carrier TELUS CDMA network is being upgraded to EVDORev.A version.
Operators on the CDMA EVDO Rev.A version is very keen on the following two reasons.
First Data business needs. And EVDO Rev.0 version than, EVDO Rev.A version before upgrading to the peak rate of 2.4Mbps to the 3.1Mbps, the reverse peak rate from the 144kbps upgrade to 1.8Mbps. Therefore, the transmission rate, especially to improve uplink transmission rate, will greatly enhance the operator's ability to provide data services. From the business point of view, although the voice revenue remains the main revenue source, but the voice service revenue is decreasing, while the fast growth of data. To Verizon, for example, the first quarter of this year than last year's first quarter, data revenue grew 80%, its data services including SMS, Internet access, Brew, positioning, MoD / VoD, MediaFlo so. High-speed data services growth and high-speed data services network construction inseparable, CDMAEVDO network coverage to support a large number of listed EVDO terminals are greatly promoted the growth of data services.
Second, real-time business needs. And EVDO Rev.0 comparison, EVDORev.A version of another significant improvement is provided in the Rev.A network air interface QoS capabilities, can operate, such as PTT, VoIP, video telephony, online gaming and other real-time business. Currently, Qualcomm's QChat technology to ensure network operations in EVDORev.A business button PTT call setup time is less than 1 second, which is already widely used in North America and the iDEN system performance fairly. Therefore, several North American CDMA operators in the next year business plan based on EVDORev.A network QChat system, which SprintNextel and TELUS are planning to migrate existing users to the iDEN network QChat system.
