Localized network service

Providing a network service to at least one mobile terminal inside a service area, the at least one mobile terminal being arranged to communicate with a communication network, the service area being a part of a geographical area that is covered by the communication network, comprising defining, by a first grid process, a first grid with first grid lines, the first grid covering at least a part of the service area with one or more tiles framed by the first grid lines; defining, by a second grid process, a second grid with second grid lines, the second grid covering at least a part of the service area with one or more tiles framed by the second grid lines; monitoring a crossing, by the at least one mobile terminal, of a grid line; and determining whether said grid line is a first grid line or a second grid line for notifying correspondingly the first grid process and/or the second grid process.