Patent ID: 6973054
Filing Date: 2005-12-06
Classification: H04L,H04W

Abstract:
1. A method in a communication system of transferring control of a user-plane entity from a first control-plane entity to a second control-plane entity, comprising the steps of: sending, by the user-plane entity to the first control-plane entity, a set of identifying parameters; sending, by the first control-plane entity to the second control-plane entity, the set of identifying parameters; determining, in the second control-plane entity, whether the user-plane entity can be controlled by the second control-plane entity; and if the user-plane entity can be controlled by the second control-plane entity, then sending, by the second control-plane entity to the user-plane entity, an indication that a change in control-plane entities has occurred and that at least some resources of the user-plane entity that were controlled by the first control-plane entity are to be controlled by the second control-plane entity.