what cell phone tracking exactly means?

Cell phone tracking refers to the attaining of the current position of a mobile phone which can be either stationary or moving. Localization may occur either via multialteration of radio signals between (several) radio towers of the network and the phone, or simply via GPS. To locate the phone using multialteration of radio signals, it must emit at least the roaming signal to contact the next nearby antenna tower, but the process does not require an active call. mobile positioning, which includes location based service that discloses the actual coordinates of a mobile phone bearer, is a technology used by telecommunication companies to approximate where a mobile phone, and thereby also its user (bearer), temporarily resides. The more properly applied term locating refers to the purpose rather than a positioning process. Such service is offered as an option of the class of location-based services.