| 摘要 |
There is provided a method and apparatus for generating a temporary Globally Routable User Agent URI (GRUU) in an IP Multimedia Subsystem (IMS) system. The method and apparatus can generate a temporary GRUU without the need to generate and manage a separate database (DB). Since the previously registered user's aor and Instance Id cannot be found if a DB managing an I value I_i and an aor-Instance Id pair is lost, the method generates a temporary GRUU based on the current timestamp, an Address Of Record (aor) and an Instance Id (or Private User Identity).
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