Title:
METHOD FOR SUPPORTING SMS TRANSMISSION FOR USER EQUIPMENT THAT CAN RECEIVE SERVICE FROM 3GPP 5G SYSTEM AND FROM EPS IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/022442
Kind Code:
A2
Abstract:
An embodiment of the present invention pertains to a method for a home subscriber server (HSS)+user data management (UDM) supporting a mobile terminated (MT) short message (SM) service for a UE that is registered to both of an evolved packet core (EPC) and a 5G core network (5GC) in a wireless communication system, the method comprising the steps of: the HSS+UDM receiving information for MT SM routing from an access and mobility management function (AMF) and a mobility management entity (MME); determining a priority regarding which one of an SMSF connected to the AMF and the MME an MT SM would be transmitted to first, based on the information; and transmitting routing information including the determined priority to an SMS-related node, wherein the HSS+UDM may determine the priority according to whether a UE to receive the MT SM is in a state of being connected to 5GC or EPC.
Inventors:
KIM LAEYOUNG (KR)
Application Number:
PCT/KR2018/008240
Publication Date:
January 31, 2019
Filing Date:
July 20, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W4/14; H04W60/00; H04W72/12; H04W88/18
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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