Location management in third-generation networks: a user mobility approach

Several strategies have been proposed recently to improve the performance of the location management scheme in mobile networks. This paper proposes a profile-based strategy to reduce both the location update and location search procedures´ cost. Users can be divided into classes according to their degree of routinely behavior; these are deterministic, quasideterministic and random. The predictability of the two first types of users can be utilized by the network to reduce the number of location updates, at the expense of a somehow higher call set up delay or cost in a purely profile-based strategy. Mobility and call arrival patterns vary among users, it is highly desirable that location registration and call delivery procedures can be adjusted dynamically on a per-user basis.