Cell edge意思

"Cell edge" is a term used in telecommunications, particularly in the context of mobile networks. It refers to the perimeter or the outer boundary of a cell, which is a geographical area served by a single base station or radio tower.

In a cellular network, the coverage area is divided into cells, which are small geographical regions. Each cell is served by a base station that transmits and receives signals to and from mobile devices within its coverage area. The cell edge is the point at which a cell's signal strength begins to weaken, typically due to distance from the base station or interference from other cells.

When a mobile device is at the cell edge, it may experience weaker signal strength, slower data speeds, and potentially dropped calls or poor call quality. Network operators often focus on improving coverage and capacity at the cell edge to ensure a better quality of service for users in these areas.