Recently, the news that operators have closed the 2G network has been heated up. The reason is that some users have reported that their parents' old age cannot be used. It is suspected that China Unicom has exited the 2G network. Why should operators shut down 2G networks? What is the progress of the three major operators' networks? What are the affected devices? Domestic and foreign operators vacate the network Previously, China Unicom had stated that it would provide users with better quality and faster network. In this year, the provinces will gradually deploy 2G users to change jobs and base station frequency reduction. China Mobile will retain 2G as a voice channel and vacate the 3G band before VoLTE has completed its full replacement. China Telecom realized the re-cultivation of the 800M frequency band last year. According to the network load, the original user 2G and 3G 800M frequency bands were converted into 4G and Internet of Things. Independent analyst Fu Liang said in an all-media interview with the communications world that overall, the three major telecom operators are gradually shifting 2G/3G resources to 4G, but each adopts different strategies. Unicom stays 3G and returns 2G. 2G retreats 3G, and telecommunications comprehensive considerations, the purpose is to improve resource utilization. Why do you want to say goodbye to 2G/3G? The time for issuing 3G licenses in China is seriously lagging behind, and a large number of users still use 2G/3G networks. Speed ​​requirement Compared with 4G, 2G technology is obviously backward. In order to cope with the development trend of the Internet, the Internet speed will definitely need to be faster in the future. Obviously, 2G networks cannot satisfy. Gold spectrum 2G networks occupy some of the better network bands, such as 900MHz and 1800MHz. Fu Liang said that the application of these gold spectrum resources on 4G or 5G will save operators a large part of the cost, so that users have a better experience. In summary, weighed the pros and cons, and the abandonment of 2G by operators is the general trend. In fact, more than 20 operators including Japan, South Korea, the United States, Singapore and other countries and regions have officially closed the 2G network and completed the user migration. Close 2G network, hundreds of millions of users affected? According to relevant data, as of the end of 2017, China still has 290 million 2G users, 1.57 million 2G base stations and a large number of IoT devices that rely on 2G networks. If the 2G network is completely shut down, some users will be affected. Fu Liang said frankly that it is not advisable to “catch†users to 4G by directly shutting down the base station. This is likely to lead to a large number of user complaints. A more reasonable approach is: the telecom operator proposes the application for the network and announces the timetable for the network after the approval of the competent authority (the closing time is at least one year after the announcement), and sends the 4G terminal or other means through the charging fee. If there is no investment or influence on the use, the user can upgrade from 2G or 3G network to 4G. If the user refuses to upgrade, the telecom operator can also cancel the contract and no longer provide services. At present, the three major operators have also deployed corresponding measures for 2G mobile phone users using non-intelligent terminals, such as free replacement of SIM cards, preferential 4G package contracts for 2G users, and cheap purchase of smart terminal phones. In fact, the end of the 2G era is inevitable, but it also requires a process. At present, no operator has completely shut down the 2G network, and those affected user operators are actively carrying out "remediation" work, in the "speed-up and fee reduction" Under the background, China's three major operators are urgently needed to reduce the network operation and maintenance costs, leaving room for the decline in tariffs. With the advent of the 5G era, 2G and 3G withdrawals are a top priority.
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