EXECUTION METHOD AND USER EQUIPMENT FOR SERVICE REQUEST PROCEDURE

摘要

A disclosure of the present specification provides a method for executing a service request procedure from a user equipment (UE). The method may comprise the steps of: a lower layer of a UE blocking access of an originating call due to access class barring (ACB); an NAS layer of the UE receiving a start indication from an upper layer due to a request for uplink data; and, if the lower layer has indicated that access was blocked for the originating call but the NAS layer has received the start indication, then the NAS layer commencing the service request procedure.

主权项

1. A method for performing a service request procedure, the method performed by a user equipment (UE) and comprising:
barring, by a lower layer of the UE, an access for an originating call, because of an access class barring (ACB); receiving, by a non-access stratum (NAS) layer of the UE, a start indication from an upper layer due to a request for an uplink data; if the lower layer indicates that the access was barred for the originating call and if the NAS layer receives the start indication, starting, by the NAS layer, a service request procedure, wherein the starting the service request procedure includes: delivering, to the lower layer, a call type for transmitting a service request message or an extended service request message, and wherein the call type is set to one of an originating multimedia telephony (MMTEL) voice, an originating MMTEL video, an originating short message service (SMS) over internet protocol (IP) or an originating SMS.