US Patent No. 10,694,496

METHOD AND APPARATUS FOR TRANSMITTING GROUP MESSAGE TO USER EQUIPMENT (UE)


Patent No. 10,694,496
Issue Date June 23, 2020
Title Method And Apparatus For Transmitting Group Message To User Equipment (ue)
Inventorship Sung Hwan Won, Seoul (KR)
Seonghun Kim, Suwon-si (KR)
Donghan Kim, Osan-si (KR)
Jinyoung Oh, Seoul (KR)
Seunghoon Choi, Suwon-si (KR)
Youngwoo Kwak, Suwon-si (KR)
Assignee Samsung Electronics Co., Ltd., Suwon-si (KR)

Claim of US Patent No. 10,694,496

1. A method of a service capability server/application server (SCS/AS) in a wireless network, the method comprising:transmitting, to a service capability exposure function (SCEF), a first request message to request an allocation of a temporary mobile group identifier (TMGI) in a case that there is no allocated TMGI for a group message delivery, the first request message including an external group identifier and an SCS/AS identifier;
receiving, from the SCEF, a first response message including the TMGI in a case that the SCS/AS is authorized to request the allocation of the TMGI;
transmitting, to a user equipment (UE), an application-level signaling including the TMGI; and transmitting, to the SCEF, a request message including the TMGI and the external group identifier for requesting the group message delivery,
wherein the SCEF checks whether the SCS/AS is authorized to request the allocation of the TMGI in a case that the first request message is received from the SCS/AS.