METHOD FOR MOBILITY MANAGEMENT IN SYSTEM ARCHITECTURE SUPPORTING MOBILITY BETWEEN DIFFERENT ACCESS SYSTEMS Russian patent published in 2012 - IPC H04L12/28 H04W4/02 

FIELD: information technology.

SUBSTANCE: method comprises a step of: when user equipment UE leaves the coverage of a first one of said access systems where it is in a Non Radio Connected state as seen from Radio Access Network RAN, but seen in Connected State from CN-level MM entity, such as in a URA-PCH state of legacy 3 G system, for the coverage of a second one of said access systems where it is in Idle state as seen from CN- level MM entity, putting the UE into Idle state as seen from CN- level MM entity of said first access system.

EFFECT: supporting mobility between different access systems, such as a legacy 3G system and a LTE long term evolution system, having separate Core Network CN-level MM entities while using common MM Area.

16 cl, 3 dwg, 1 tbl