A method, system and mobile device for implementing a serverless presence system

摘要

A method, system and mobile communication device (201) for implementing a serverless presence system are provided. In accordance with one embodiment, there is provided a method of sharing presence information between a group of mobile communication devices (201) configured to communicate over a wireless network, the mobile communication devices defining the group members of the group, the method comprising: sending a data packet (402) from a sending group member to at least one of the other group members; determining a presence status in accordance with whether a delivery acknowledgement is received (404) by the sending group member from each of the other group members to which the data packet was sent within a predetermined duration from the sending of the data packet; storing the determined presence status in memory; and sending a presence update (410) comprising the determined presence status of at least some of the group members to all of the group members.