This year, China's telecom industry has been good fortune. First, the tariff approval was released, and then the 170th session was officially called. Then the Tie Tower company was formed, and two pilot cities with port number transfer were added. This series of events is fresh and lively, mixed with a strange smell of revolutionary atmosphere. It is only when the inventory is taken at the end of the year. I can only call these events "great sesame and big glutinous rice", which is a bit high and widowed. It fully proves the no-effect effect of China's telecom industry this year. In contrast, the construction of 4G networks is considered to be a very good thing for a business operator. At the very least, they really spend money. The big billboards standing in the middle of the city go straight to the sky, and they are solemn and solemn. In fact, there is no Chinese in the historical period who has seen the number of "4". Even the ward number of the Shanxi Grand Hospital has been specifically avoided! In addition, in order to rob 4G and compete for the right to speak in the future, operators who have always been rich and rich have begun to consider tightening their belts. China Mobile has announced that it will stop the construction of 2G network base stations, and China Telecom has no idea of ​​“making broadband in rural areasâ€. They, without exception, have saved all the money saved on the 4G network. “The ideal is very full, the reality is very skinny.†It is no more appropriate to use this online buzzword to summarize China’s 4G development: a huge hormone urges operators to build 4G networks as soon as possible, but what’s really cool is Telecom equipment vendors, while some media are shouting: 4G is a scam, but the author believes that although the current 4G is somewhat deformed, we can't really call it a scam. From the perspective of the development of the telecom industry, At the very least, 4G practitioners are "doing the right thing at the wrong time." Declining, 2G/3G revolutionary story Let's call it the 3G era now. After all, 3G advertising signs are quickly being withdrawn. Looking back at several times in the telecom industry, from fixed telephones to the first batch of big brothers, from GSM to WCDMA and other 3G systems, there are also some small eras such as 2.5G, 2.75G, etc., and have to admit every technological evolution. It will bring huge changes to ordinary consumers and related industry chains. It is only going all the way. We can’t help but discover that with the maturity of telecommunications technology, the “shocking†of these evolutions is gradually decreasing, so that now, “revolution†The word appears to be very common in the article. The emergence of GSM technology is definitely a milestone in the history of human communication. It is revolutionary and subversive. The biggest breakthrough in this era is to enable consumers to get rid of the shackles of the telephone line and start moving communication. Therefore, in the 2G era. As soon as the concept was introduced, it quickly became popular, destroying and fading, and with the outbreak of this communication revolution, Motorola, Nokia and other mobile phone manufacturers quickly rose. Until 2006, the author also believed that Nokia mobile phones would never fall. Bad. In the 2G era, it can be said that the consumer's desire to move is born. Once the relevant technology matures, it immediately shows an explosion; however, the evolution from 2G to 3G does not have a strong revolutionary taste. In fact, 2006 Before and after, Chinese communication experts basically believed that 3G might be a scam, but the wording was relatively mild eight years ago. The name is: 3G era is only a concept advocated by telecom European and American equipment manufacturers, the purpose is to earn the money of our operators, but Later facts proved that although China's 3G development suffered some twists and turns, it finally completed the basic construction, and also won the island technology TD-SCDMA. In addition, the iPhone was born in 2007 and immediately took the 3G era. A nickname: the era of mobile Internet, and "network traffic" has become the core attribute of this era. In short, from the fixed telephone to the 2G era is a real revolution, user needs and technological evolution complement each other, hit it off; while the 3G era is somewhat difficult to produce in China, operators have experienced a large-scale publicity period to popularize the concept and form, in addition, Still borrowing the spring breeze of smart phones, let's also call the mobile Internet a revolution, but obviously, the shock of the handover of the two eras has been greatly reduced. It seems that we are more unaware of using mobile phones to access the Internet and watch movies. It is. Multilayer Piezoelectric Speaker,New Piezo Speaker,Piezoelectric Speaker Sounder NINGBO SANCO ELECTRONICS CO., LTD. , https://www.sancobuzzer.com