Method and Apparatus for Mapping E-UTRAN Cells at Call Establishment

摘要

Some embodiments provide a method of macro cell remapping at a Voice over LTE via Generic Access (VoLGA) access network controller (VANC). The method receives a service request message from a user equipment (UE). The service request message includes macro cell information that includes an identity of a current camping cell. The method maps the macro cell information provided by the UE into a corresponding service area identifier (SAI).