What is Wireless City and 3G ? It s a lot of conflict

Wireless city means that most of the city has been covered by wireless networks, as long as you have access permissions, your mobile terminal can access the Internet through wireless networks, access the corresponding network resources.

Wireless city is to do the city's wireless network coverage and applications and facilities.

The entrance to the second smart city opened.

Cloud Link Starry Sky Hot Spot.

Amplify the signal of the wireless LAN at home to cover the entire city, and then you can access the Internet anytime and anywhere as if you were at home.

But it doesn't seem to have much future, after all, 3G is ripe.

3G is definitely not free, the three major operators are different, an average of 200-300 a month, no location.

Your classmate's school is covered with wifi, you can access the Internet for free, not every school has it, and there are only about 20 universities in Beijing, only on campus, or even only in a few buildings, and generally schools only have libraries.

3G is the one that plugs in the SIM card of the mobile phone to access the Internet and is charged.

Your classmate's Wi-Fi is Wi-Fi Unlimited Internet access is access to the Internet by connecting to an Infinity router.

You can buy a super powerful receiver on the Internet, find a signal, and after cracking the password, you can access the Internet for free Good luck.

WiFi said that the scum is white is a common wireless network card for short-distance Internet access for all electronic products, an international standard, but it has not been recognized by our country. 3G is the next generation of wireless communication network with beams and spikes, in which the function can include WiFi or be implemented in the form of WiFi, but it is impossible to be replaced by WiFi. The reason is simple:

A faster way to access the Internet than the original GPRS. (The theoretical value can be simply understood as the cell tower of the mobile phone to send network signals (in fact, it also uses the SIM card in the mobile phone). Receive and access the Internet on a laptop or desktop computer equipped with a wireless data card.

Hangzhou office, Ningbo can be used, but it can be regarded as roaming. The tariff is high. For details, please consult the customer service of your local provider.

3G wireless broadband Internet access, is the use of 3G wireless network card, through the operator to connect to the Internet through the 3G wireless network provided by the operator, and the difference between one and one wired broadband is a wireless, similar to WLAN Internet access (that is, some offices put an AP to turn wired broadband into WiFi signal), but the WLAN signal is limited, and the 3G signal coverage is wider.

You can roam all over the country, as long as there is a network and the roaming service is opened at the same time, if you have the same network abroad, you can also roam abroad.

At present, there are three kinds of 3G in China, one for each of the three operators, and the three types of 3G are incompatible and not universal.

That's a big difference, wireless city is a software launched by a telecommunications company, there are good functions and newspapers, as well as information and other content, wifi is a wireless transmitting device, providing network transmission equipment. Hope to adopt!

Wireless city is made by operators, and it is also profitable, and wifi is basically a small home office. Large wifi is called wireless city.

Wireless city is to do the whole city wifi coverage, cloud starry sky, wifi is wireless network.

A wireless city is just not a single wire in sight.

Wireless city refers to the use of a variety of wireless access technologies to provide the entire city with wireless network access anytime, anywhere, and on demand. Industry insiders believe that the wireless city, first of all, is a multi-level, full-coverage, broadband, ubiquitous, integrated information network, so that users can switch freely according to applications and scenarios, access the best network at any time, and build a convenient, safe and rapid access to the information world for citizens, which is the basis of all digital and intelligent information applications; At the same time, the wireless city is also an information application platform that integrates the Internet, mobile Internet and the Internet of Things, through the aggregation of a large number of information content and applications, it can provide convenience for the public's shopping, travel, learning, education, health care, etc., and can provide powerful tools for the opening, sales, publicity, management and other aspects of the enterprise, and can provide useful help for the openness of government affairs, supervision, urban management, etc.

As the logo shows: Wireless City, Enjoy a New Mobile Life.

Wireless City is a life service platform built by China Mobile, committed to providing you with "one-stop local life services".

You only need to click on the wireless city to find relevant information, and enjoy a variety of local life services without leaving home. All kinds of high-quality applications, dedicated to serving you, so that you can enjoy a new life of mobile convenience.

In 2014, the Wireless City Portal included WAP portals (including touchscreen, 3G, and lite) and web portals. At the same time, it can also be accessed using the wireless city client, which supports Android and iOS systems.

In addition to public access, urban wireless can also carry a variety of services and drain traffic, and can obtain rental income by providing bandwidth rental.

Built-in marketing center, support custom advertising on the authentication page, and obtain income by renting advertising space and providing advertising media services;

It can be connected to the mainstream billing system for authentication, supports online billing according to the time and traffic rate, and provides paid Internet access services;

In order to thoroughly implement the scientific concept of development and promote the construction of "wireless city" faster, the Municipal Information Office organized technical experts to conduct a number of technical studies and completed the first phase of the construction plan of Nanning wireless city, the construction goal is mainly to save and comprehensively integrate the use of various resources, based on the mature wired broadband network in Nanning, the integration of wired and wireless technology advantages, and the follow-up 3G mobile terminal Internet access as a supplement, and the implementation of the wireless broadband project construction in Nanning City in stages and steps, Nanning will be built into a broadband network with wide coverage, account roaming, and sustainable operation, and eventually become the core city of Guangxi Beibu Gulf Economic Zone and the permanent host of the ASEAN Expo.

Under construction, there is no exact time.

Haha, the lucky point may be faster in the dream

Now Nanning's edge, which is also the GPRS, is still rotten... Don't mention what 3G, what wifi...

After my own practice, there are free wifi in Guangyi Public Building and Nanhu Apartment, paid wifi in Guangyi playground, courtyard office, Red Mansion, etc., and there are a large number of hot spots in bars around Nanhu, many of which are not encrypted

If you think about Guangzhou, it was the only city in the country to realize wireless technology last year, and it was just in its infancy, Shanghai, Beijing, and Shenzhen were not arranged, when will it be Nanning's turn?

Nowadays, **into thousands of households, do you know who invented it? Bell is the one who invented the **. Born in England in 1847, he worked with his father as a young man teaching the deaf and the mute, and wanted to build a machine that would allow the deaf to see sound with their eyes.

In 1873, Bell, who became a professor at Boston University in the United States, began to study the device for transmitting many telegrams on the same line, the multiplexer telegraph, and came up with the idea of using electricity to transmit people's voices to distant places, so that people from thousands of distances could talk as if they were face-to-face. So, Bell began to research. It was June 2, 1875, and Bell and his assistant Watson were experimenting with a multiplexer telegraph in two separate rooms, and a chance accident inspired Bell.

A spring on the telegraph in Watson's room was glued to the magnet, and when Watson pulled the spring, the spring vibrate. At the same time, Bell was surprised to find that the springs on the telegraph in his room vibrated and made a sound, and it was an electric current that transmitted vibrations from one room to another. Bell's train of thought suddenly opened, and he thought:

If a person speaks to a piece of iron, the sound will cause the piece of iron to vibrate; If an electromagnet is placed behind the iron sheet, the vibration of the iron sheet will inevitably produce a large and small current in the electromagnet coil. Doesn't this fluctuating current travel along the wire to a distance, and the same vibration and sound will occur on a similar device in the distance? So the sound travels along the wires into the distance.

Isn't this the ** of dreams! Bell and Watson built the first machine according to the new idea. During one experiment, a drop of sulfuric acid splashed on Bell's leg, causing him to scream in pain

Mr. Watson, I need you, please come to me! This sentence was transmitted to Watson's ears by the **machine through the wire,** succeeded! On March 7, 1876, Bell became the patentee of the ** invention.

Bell was awarded 18 patents during his lifetime and co-authored 12 patents. He envisioned burying the ** wire in the ground, or suspending it in the air, using it to connect to homes, villages, factories, ......In this way, it can be directly connected from anywhere**. Today, Bell's vision has long since become a reality.