US Patent 10349230 Group communication with configurable geographic service area

A Group Communication Service Enabler (GCSE) controls the formation of a group service and access by mobile devices to the group service based of geographic region restriction associated with the group service. A mobile device may be able to override the geographic restriction. As mobile devices join and leave the group service and roam from cell to cell, the wireless resources used by the group service are adjusted by creating or modifying transmission the associated multimedia broadcast/multicast service (MBMS).