What is a cellular network?

question 1: what does a cellular network mean? This problem is very simple. Now, in the wireless communication system, the area covered by each base station is similar to a hexagon. When a plurality of base stations are combined, it is exactly similar to the shape of a bee's nest, which is called a cellular network!

at present, most mainstream communication services are provided by cellular networks. What is a cellular network? Simply put, the service of mobile phone is divided into regular hexagonal sub-areas, and each sub-area has a base station. Formed a structure that looks like a "honeycomb", so this mobile communication mode is called cellular mobile communication mode. Cellular networks can be divided into analog cellular networks and digital cellular networks, which are mainly different from the way of transmitting information.

The reason why cellular networks are widely used is a mathematical conjecture. Regular hexagon is considered as a graph that can cover the largest area with the least number of nodes. For the sake of saving equipment construction cost, regular hexagon is the best choice. The network formed in this way is covered together and shaped like a honeycomb, so it is called a cellular network.

The cellular network consists of the following three parts: mobile station, base station subsystem and network subsystem. The mobile station is our network terminal equipment, such as mobile phone or some cellular industrial control equipment. The base station subsystem includes mobile stations (big iron towers), wireless transceiver equipment, private networks (usually optical fibers), countless digital devices and so on. We can regard the base station subsystem as the converter between wireless network and wired network.

The common types of cellular networks are: GSM network (called pcs-19 in some countries), CDMA network, 3G network, FDMA, TDMA, PDC, TACS, AMPS, etc.

Question 2: What is the cellular mobile data network of Apple's mobile phone? If you want to use the mobile network, Only by turning on this switch can data be connected

Question 3: What do you mean by cellular network and WI-FI network? 1. The service of mobile phone is divided into regular hexagonal sub-areas, and each cell has a base station. Formed a structure that looks like a "honeycomb", so this mobile communication mode is called cellular mobile communication mode. Cellular networks can be divided into analog cellular networks and digital cellular networks, which are mainly different from the way of transmitting information.

2 wifi is the full name of wireless fidelity, which is the most widely used wireless network transmission technology. In fact, it is to convert wired network signals into wireless signals for receiving by related computers, mobile phones, PDA, etc. that support its technology. If the mobile phone has the WIFI function, when there is a WIFI wireless signal, it can surf the Internet without using the mobile Unicom network, thus saving the traffic fee. But WIFI signals are also provided by wired networks, such as ADSL and residential broadband at home. As long as a wireless router is connected, wired signals can be converted into WIFI signals.

In short, it is a wireless network.

It can be provided by mobile,

China Unicom

Telecom.

Question 4: What does cellular data mean? It is one of the technical standards of wireless communication, and G-network mobile communication is still cellular at present.

because small wireless communication equipment has low power and short communication distance for mobility and other reasons, in order to achieve long-distance communication and efficient communication and communication management, a large number of base stations are needed for data processing and forwarding, and the wireless coverage distance of the base stations is limited, so multiple base stations are needed to cover the whole area. Only the location of the base stations is hexagonal, which is the most efficient, and the superposition of multiple hexagonal rows is very similar to a honeycomb.

the parameters used in this layout are also called cellular data.

not only wireless communication base stations, but also some service industry outlets are cellular.

question 5: what is the cellular mobile network and what is its use? Cellular network or mobile network (English) is a kind of mobile communication hardware architecture, which divides the service of mobile phones into regular hexagonal sub-areas, and each cell has a base station, forming a structure that looks like a "cell", so this mobile communication mode is called cellular mobile communication mode. Cellular networks can be divided into analog cellular networks and digital cellular networks, which are mainly different from the way of transmitting information.

question 6: what do you mean when the cellular mobile network is turned on and off? Turning on means that when you don't have wifi, you take the traffic. If you don't turn it on, you can't connect to the network when you don't have wifi, because the traffic is off.

Question 7: Advantages of cellular network Since Bell Labs invented the concept of cellular in the 197s, cellular technology has been the foundation of mobile communication. Sometimes, people call mobile communication cellular communication. The concept of cellular includes several important parts, which are the basis of the development of mobile communication. 1. Frequency reuse. Limited frequency resources can be reused in a certain range. 2. the community is divided. When the capacity is insufficient, the range of cells can be reduced, and more cells can be divided to further improve the frequency utilization efficiency.

question 8: what is a cellular network? Cellular communication system refers to the shape of mobile network like honeycomb coal. Cellular communication system has experienced the first generation (1G) and the second generation (2G), and is developing towards the third generation (3G) and the fourth generation (4G). The first generation of mobile communication is an analog cellular phone. There are mainly NMT(45MHE and 9MHE) and 9MHE in Northern Europe, which were used in China. The second generation mobile communication system is a digital cellular phone. China has adopted the European GSM system and China Unicom's CDMA system (code division multiple access, 8MHE). Because CDMA adopts the coding technology of code division multiple access, its frequency utilization rate is high. The same frequency can provide more call channels, and its quality and confidentiality are also good. The goal of the third generation mobile communication is to face high-speed data and multimedia applications. When the terminal is used, it can reach 2Mb/s indoors, the walking speed is 384kb/s, and the high-speed vehicle is 144 KB/s.. At present, the third generation mobile communication has passed several major 3G standards under the requirements of the technical standards of the International Telecommunication Union IMT－2. While developing 3G, the world has begun to research and develop the fourth generation mobile communication (4G) and the fifth generation mobile communication (5G). The transmission rate of 4G can reach 1mb/s, and 4G will combine Bluetooth (similar to infrared ray, which can replace the wiring of electrical equipment in indoor computers) wireless LAN with 3G technology to form a seamless communication solution and corresponding products. In addition to talking and receiving rich multimedia information, 5G mobile phones can also demonstrate 3D games and participate in 3D TV conferences.

question 9: what do Ethernet, cellular data network, 3G4G and other networks mean? What is the connection? What is the difference? Ethernet is simply a kind of protocol stack, and the corresponding devices are switch router devices with various Ethernet interfaces, which interconnect devices that support Ethernet interfaces. Of course, there are also wireless wifi local area networks, which use slightly different protocols and have the function of interconnecting wireless wifi devices.

The cellular data network (divided into 2G, 3G and 4G cellular data networks) is a series of protocol stacks, because it contains many interfaces and protocols to form a complete system for wireless cellular mobile devices to surf the Internet, such as mobile phones, PADs with cellular functions, cellular network cards, etc.

Question 1: What does the cellular data network of Apple mobile phones mean, that is, the data connection of Android? Apple put it another way.