Patent ID: 8942660
Filing Date: 2015-01-27
Classification: H04W

Abstract:
1. A method for wireless communication, comprising: communicating with a packet-switched wireless network by a user equipment (UE) for an emergency call; receiving an indication to perform handover from the packet-switched wireless network to a circuit-switched wireless network; sending a message from the UE, the message comprising an emergency indication to initiate handover to the circuit-switched wireless network, the emergency indication comprising a preconfigured called party number, wherein an Emergency Session Transfer Number for single radio voice call continuity (SRVCC) (E-STN-SR) for the emergency call of the UE is sent by a Mobile Positioning Center (MPC) to a Mobile Switching Center (MSC) of the circuit-switched wireless network in response to a query from the MSC; communicating with the circuit-switched wireless network for the emergency call after handover; obtaining location services via the packet-switched wireless network for the emergency call prior to handover; and obtaining location services via the circuit-switched wireless network for the emergency call after handover.