Method amp; apparatus for binding of a user-based public identity to a shared device in an internet protocol multimedia subsystem (IMS)

摘要

Methods and apparatuses bind a user's IMS public identity to, and unbind it from, a mobile device (MD) shared among multiple users. In binding the user's IMS public identity, a message is received from the MD, which message comprises a shared service authorization access token that is associated with a shared service and that comprises an identifier of a user of the MD. The message further comprises a default public identity of the MD. Based on the user identifier and the default public identity, the user is determined to be authorized to use the MD for the shared service. In response to the determination, a public identity of the user is obtained and mapped to the MD to bind a private identity and a public identity of the MD and the public identity of the user, and a user subscription database is instructed to update the user's service subscription information.