METHOD AND APPARATUS FOR PROVIDING EMERGENCY SERVICE IN A NETWORK

A method, for a UE in a network, for requesting an emergency service is disclosed. The method comprises: when an emergency service is required, if the UE is using CP CIoT optimization, transmitting a NAS message including an indication that an emergency service is requested. The NAS message may be a CPSR message, and the indication may be a predetermined value (e.g. denoting "emergency service") in a predetermined field (e.g. Control plane service type field) of the message. Alternatively, the NAS message may be a Service Request message, the indication may be a predetermined value (e.g. denoting "emergency service" or "emergency service fallback") in a predetermined field (e.g. Service type field) of the message, and transmitting the Service Request message may be prioritised over transmitting a message (e.g. CPSR message) for sending data (e.g. not related to an emergency service).