System and method for providing voice service in a multimedia mobile network

摘要

User Equipment (UE) receiving non-voice packet switched services in an Evolved Universal Mobile Telecommunications System Terrestial Radio Access Network (eUTRAN) cell undergoes handover to a circuit switched GSM/Edge Radio Access Network (GERAN)/UTRAN cell in response to a voice service page. An eNodeB of the active eUTRAN cell uses a measurement report history for the UE to select an available circuit switched cell for handover. The voice service is established in the circuit switched domain of a GERAN/UTRAN cell to ensure service continuity regardless of UE mobility that would otherwise not be possible if the voice service was established in the eUTRAN cell. A Gs-like interface between a Mobile Switching Center (MSC) of the CS Core Network and the Mobility Management Entity (MME) of the Evolved Packet Core provides an interface for page requests and location update procedures to be performed.

主权项

1. A mobility management entity configured to:
receive a voice service page in respect of a user equipment; forward the voice service page requiring a voice call establishment of the user equipment in a circuit switched cell; receive a service request from the user equipment in response to the forwarded voice service page; and request a handover procedure of the user equipment to the circuit switched cell.