Unicom 3G speed up 1.5 times times faster than 21Mbps

January 27 News, according to people familiar with the situation, China Unicom in Guangdong three 3G network WCDMA Evolution Technology test is coming to an end, according to the current Third-party data show that the test results are excellent. Three major 3G equipment manufacturers Ericsson, Huawei, ZTE HSPA Network and performance testing, the rate of up to 21Mbps, is Unicom's existing 3G network 1.5 times times.　　Experts involved in the test said to the communications industry Network reporter, China Unicom in the second half of 2010 is expected to launch the HSPA network in some important cities to upgrade deployment. Data from the GSA show that 54 operators worldwide have deployed or announced plans to deploy HSPA networks, including 26 HSPA commercial networks already deployed in 19 countries. The Japanese NTT DoCoMo and other operators have said they want to skip HSPA, and directly upgrade the existing 3G network from HSPA to LTE. In fact, currently can support HSPA terminal is not much, in the 3G to LTE upgrade process, the HSPA phase can be spanned?　　The difficulty of technology implementation and the input and output of equipment, as well as the development of 3G market in China, play a decisive role in the input of equipment business. Considering 3G-oriented HSPA, LTE or 4G of subsequent evolution, domestic experts have different views. "This requires comprehensive consideration of technology and markets," said Xinsheng, an inspector for the Telecommunications Administration at the Ministry of Industry and Informatization. For example, is the HSPA network performance currently deployed to meet market requirements? What is the progress of the deployed HSPA network abroad? How difficult is the technical implementation from HSPA to HSPA stage? "China unicom Shaanxi Branch Zhou Diyang to the communications industry Network reporter said that the current HSPA still exist a certain amount of investment and technology risks, in order to ensure the safety of HSPA investment, the relevant operators and units need to further refine the HSPA implementation plan, comprehensive consideration including network capacity load,　　LTE's development speed and commercial situation, investment income, user experience, business needs and policy trends.　　It is reported that China Unicom started the HSPA test project in Guangzhou, Shenzhen and Zhuhai last October, and the project was finished recently. 2009 is China's 3G start of the year, but the operators did not stop the pace. In addition to a variety of marketing tools, the three operators at the same time to intensify their 3G technology to carry out subsequent evolution technology testing.　　At present, the follow-up technology is EV REV.B, China Unicom is HSPA, Mobile is LTE. HSPA is a new technology adopted by Unicom in the R7 and R8 phase, its peak rate can reach 21Mbps, 28Mbps, 42Mbps or even higher according to the different technologies adopted, and there are more than 30 21Mbps HSPA commercial networks worldwide.　　The industrial chain is very mature. According to people familiar with the information, Huawei, Ericsson, ZTE ThreeManufacturers in accordance with the requirements of China Unicom Group, in the three sites are online upgrades to 21Mbps, the current Chinese unicom 3G network rate is down 14Mbps, Uplink 7.2Mbps, the first batch of terminals using the highest peak rate of technology up to the downlink 7.2Mbps, up 5.76Mbps.　　In other words, 21Mbps is equivalent to Unicom's existing 3G network 1.5 times times.　　The network performance and network quality of the HSPA test network constructed by the three three suppliers were evaluated by Unicom. Independent evaluation by the International authoritative third party agency commissioned by China Unicom Group, is intended to prepare for the next stage of business plan in advance. Third party in the HSPA room inside and outside the user rate, system throughput rate, network coverage performance and other key indicators of the three-site test network for up to two months of all-round testing, the results show that the network performance is excellent.　　In the outdoor user near-point average rate of the test, Ericsson and Huawei respectively reached the 16.5Mbps and 18.5Mbps downlink rate, compared to the current stage of HSPA at least more than 50%, this rate means that a 5MB of MP3 songs can be downloaded in 2, 3 seconds. According to technical personnel revealed that 21Mbps HSPA than the HSPA phase of the new introduction of downlink 64QAM higher-order modulation technology, can be in the existing HSPA network through software upgrades, hardware without any changes. If you want to evolve to 28Mbps or higher, you need to introduce MIMO (Multi-Input and Multi-output), DC (dual carrier) technology.