Bandwidth defects make WiFi mobile phones unable to become mainstream
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Due to the inherent defects in the spectrum, Wi-Fi is doomed to become a mainstream wireless city, which involves a bearing capacity problem, from the very beginning, wireless cities were not designed for nationwide Internet access. They used a small free public channel spectrum, its general frequency is not enough to support the bandwidth traffic required by the whole people to access the Internet. For example, if the city uses the water supply pipeline to implement the urban drainage function, then the city will become a fish pond sooner or later. The carrying capacity of the tap water pipe is far less than the capacity required by the drainage system. To put it bluntly, it is just like expecting a small light emitting diode to solve the lighting problem of your family, although it is very beautiful, less electricity to electric meters can not generate rotation, but it is impossible to achieve the goal of the whole family. The same is true for WiFi. What is the effect of watching videos with WiFi on hundreds of millions of people?
The bandwidth attribute is determined by the spectrum width used by the wireless network technical solution. The spectrum is directly proportional to the bandwidth.
Sohu it published the article "more than 1 million water products mobile phones can use WiFi for goods users", which aroused widespread discussions among more than 6000 netizens who received the survey, among them, 94.66% of netizens expressed their desire to use mobile phone WiFi, while only 2.29% of netizens said they do not want to use mobile phone wifi. Other 3% of netizens said they did not matter.
The strange thing is that 3G mobile phones that can make free Internet calls are also neglected. In fact, they are the same for free Internet calls with WiFi or 3G mobile phones, the difference between 3G mobile phones and WiFi mobile phones is the cost of Internet access, while the cost of Internet access is negligible compared with the phone charge.
The network phone function of a Wi-Fi Phone is not the killer of a Wi-Fi wireless city. In fact, as long as it is a smart 3G phone, you can make a network call like wifi. In theory, the bandwidth of 3G is much better than the bandwidth of WiFi, because the spectrum of 3G to carry bandwidth is an order of magnitude higher than that of wifi to carry bandwidth. from the example of the International 3G development, there is no evidence that VoIP can become a mainstream application of 3G.
Currently, TD mobile phones cannot provide free network calls, but because TD terminals are not smart phones, they cannot install free network phone software. Once TD terminals use smart phones, this problem does not exist.
Wi-Fi phones actually have major limitations. Although WiFi phones can call free network phones, they are never accessible to everyone, this is determined by the technical level of WiFi, and cannot be changed by anyone.
First, there is no evidence that the network phone will become the mainstream application of the network phone, second, WiFi due to bandwidth defects cannot become the mainstream wireless network applications, so WiFi phones cannot become the mainstream.
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