What is a cellular mobile network?

Cellular network (English: cellular network), also known as mobile network, is a mobile communication hardware architecture, which is divided into analog cellular network and digital cellular network. Because the signal coverage of each communication base station that constitutes the network coverage is hexagonal, the whole network is named honeycomb.

Common types of cellular networks are: GSM network (called pcs- 1900 in some countries), CDMA network, 3G network, FDMA, TDMA, PDC, TACS, AMPS and so on.

Extended data:

The reason why cellular networks are widely used stems from a mathematical conclusion that planes are covered by circles with the same radius. When the center of a regular hexagon grid is at the center of each regular hexagon, that is, when the center is at the grid point of a regular triangle grid, the number of circles used is the least. ?

Although it is still an unknown problem to cover the maximum area with a graph with the least number of nodes, it is usually reasonable to use circles to express the actual needs in communication even if the nodes are required to be on a grid with translation characteristics like a grid.

Therefore, in order to save equipment construction cost, regular triangular grid or simple hexagonal grid 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.

Baidu Encyclopedia = Cellular Network