Mobile station and application server for providing a service to the mobile station and operation methods for the same

An application server for providing a service to a group of mobile stations in a communication network, said application server comprising

• a communicating unit for communicating with an application active on a first mobile station of said group and associated with said service;
• a determining unit for determining at least one second mobile station from said group of mobile stations, in which at least one second mobile station an application associated with said service is inactive;
• and
• a providing unit for providing at least one address of said at least one second mobile station to said first mobile station using said communicating unit.

A wireless communication system, comprising

• a mobile station for use in a communication network comprising an application server for providing a service to a group of mobile stations in said communication network, said mobile station comprising an application associated with said service, said mobile station further comprising
• a communication section adapted to receive from said application server at least one address of at least one second mobile station of said group, in which second mobile station an application associated with said service is inactive;
• and
• an SMS mailer adapted to cause a short message service, SMS, message to be addressed to said at least one second mobile station to start on said at least one second mobile station the inactive application associated with said service upon receipt of said SMS message;
• and
• an application server for providing a service to a group of mobile stations in a communication network, said application server comprising
• a communicating unit for communicating with an application active on a first mobile station of said group and associated with said service;
• a determining unit for determining at least one second mobile station from said group of mobile stations, in which at least one second mobile station an application associated with said service is inactive;
• and
• a providing unit for providing at least one address of said at least one second mobile station to said first mobile station using said communicating unit.

A method for operating an application server providing a service to a group of mobile stations in a communication network, said method comprising

• communicating with an application active on a first mobile station of said group and associated with said service;
• determining at least one second mobile station from said group of mobile stations, in which at least one second mobile station an application associated with said service is inactive;
• and
• providing at least one address of said at least one second mobile station to said first mobile station by communicating with said active application.

A method for operating a wireless communication system comprising operating a mobile station in a communication network comprising an application server providing a service to a group of mobile stations, each comprising an application associated with said service, the method comprising

• receiving at a first mobile station from said application server at least one address of at least one second mobile station of said group, in which second mobile station the application associated with said service is inactive;
• and
• causing a short message service, SMS, message to be addressed to said at least one second mobile station to start on said at least one second mobile station the inactive application associated with said service upon receipt of said SMS message, and
• and operating an application server
• operating an application server providing a service to a group of mobile stations in a communication network, said method comprising
• communicating with an application active on a first mobile station of said group and associated with said service;
• determining at least one second mobile station from said group of mobile stations, in which at least one second mobile station an application associated with said service is inactive;
• and
• providing at least one address of said at least one second mobile station to said first mobile station by communicating with said active application.