A method for operating a location presence service in a cellular communication system comprising a plurality of neighbouring small cells each of said plurality of neighbouring small cells supporting communications between a wireless communication unit and a core network, the method comprising, at an Access Point Management System, AMS; assigning an initial unique location area code (1-12; 50-52) to each of the plurality of neighbouring small-cells within a geographic area where a presence of at least one wireless communication unit is to be determined; and receiving, by a first small cell, a first location update request from a first wireless communication unit in a first coverage area of the first small cell that is assigned a first LAC when the first wireless communication unit has moved from a second coverage area of a second cell with a different second LAC; obtaining, by the first small cell, an identity of the first wireless communication unit; generating, by the AMS a location presence notification and informing the presence server of the determined location of the first wireless communication unit and its identity at a first point in time when the identity of the first wireless communication unit is obtained; rejecting, by the first small cell, the first wireless communication unit and placing by the first wireless communication unit the first LAC on the first wireless communication unit's reject list; assigning, by the AMS, a new, different unique location area code (13-25, 53-55) periodically every 10 minutes to each of the plurality of neighbouring small-cells and including the first small cell for broadcasting by the plurality of neighbouring small-cells including the first small cell to served wireless communication units, receiving, by the first small cell, a second location update request from the previously rejected first wireless communication unit in the first small cell using the assigned new LAC if the assigned new LAC is not on the reject list of the wireless communication unit; re-obtaining, by the first small cell, the identity of the first wireless communication unit previously seen within the first small cell; generating, by the AMS a second location presence notification and informing the presence server of the determined location of the wireless communication unit and its identity at a second point in time when the identity of the first wireless communication unit is re-obtained; and enabling the wireless communication unit to successfully access the first small cell from which it was previously rejected, with the new assigned unique location area code (13-25, 53-55). the method comprising, at an Access Point Management System, AMS; assigning an initial unique location area code (1-12; 50-52) to each of the plurality of neighbouring small-cells within a geographic area where a presence of at least one wireless communication unit is to be determined; and receiving, by a first small cell, a first location update request from a first wireless communication unit in a first coverage area of the first small cell that is assigned a first LAC when the first wireless communication unit has moved from a second coverage area of a second cell with a different second LAC; obtaining, by the first small cell, an identity of the first wireless communication unit; generating, by the AMS a location presence notification and informing the presence server of the determined location of the first wireless communication unit and its identity at a first point in time when the identity of the first wireless communication unit is obtained; rejecting, by the first small cell, the first wireless communication unit and placing by the first wireless communication unit the first LAC on the first wireless communication unit's reject list; assigning, by the AMS, a new, different unique location area code (13-25, 53-55) periodically every 10 minutes to each of the plurality of neighbouring small-cells and including the first small cell for broadcasting by the plurality of neighbouring small-cells including the first small cell to served wireless communication units, receiving, by the first small cell, a second location update request from the previously rejected first wireless communication unit in the first small cell using the assigned new LAC if the assigned new LAC is not on the reject list of the wireless communication unit; re-obtaining, by the first small cell, the identity of the first wireless communication unit previously seen within the first small cell; generating, by the AMS a second location presence notification and informing the presence server of the determined location of the wireless communication unit and its identity at a second point in time when the identity of the first wireless communication unit is re-obtained; and enabling the wireless communication unit to successfully access the first small cell from which it was previously rejected, with the new assigned unique location area code (13-25, 53-55).