Method and system for supporting emergency call using non-access stratum protocol in mobile telecommunication system

摘要

The present invention relates to a method and a system for managing an emergency call between a terminal and a network by using a non-access stratum protocol in a mobile communication network. A method for providing an emergency call service by a terminal in accordance with one embodiment of the present invention comprises the steps of: enabling the terminal to transmit an access request message including an emergency call identifier to a mobility management entity; enabling the terminal to attempt to authenticate the mobility management entity after the step of transmitting the access request message; enabling the terminal to receive an access grant message including the emergency call identifier from the mobility management entity; and enabling the terminal which receives the access grant message, to provide an emergency call service through the mobility management entity. According to one embodiment of the present invention, the emergency call is enabled.

主权项

1. A method for an emergency call service by a terminal, the method comprising:
transmitting an attach request message together with a first packet data network (PDN) connectivity request message to a mobility management entity (MME), wherein the first PDN connectivity request message includes request type information indicating a request for a connectivity to a PDN for an emergency bearer service; and receiving an attach accept message including an indicator from the MME, the indicator indicating whether the emergency bearer service is supported, wherein the connectivity to the PDN for the emergency bearer service is established if the indicator indicates that the emergency bearer service is supported.