发明名称 |
METHOD, USER EQUIPMENT, AND SYSTEM FOR OPENING AN AD-HOC POC SESSION IN A POC SYSTEM |
摘要 |
A method, user equipment, and system are provided which can open an ad-hoc Push-To-Talk (PTT) over Cellular (PoC) session for a call target group whose group identifier is managed in a remote network domain when the ad-hoc PoC session is opened. A PoC client requesting session initiation sends, to a first PoC server of a home network, a session INVITE message containing information of at least one group identifier. The first PoC server checks the group identifier information and sends a group list information request message to a second PoC server hosting a group identifier when identifier information of a network group other than the home network is included. The second PoC server acquires list information about a group in the request message and sends the information to the first PoC server. |
申请公布号 |
EP1952557(A1) |
申请公布日期 |
2008.08.06 |
申请号 |
EP20060843866 |
申请日期 |
2006.11.23 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SUNG, SANG-KYUNG;KIM, WUK;PARK, SUNG-JIN;LEE, JI-HYE |
分类号 |
H04B7/24;H04W4/10;H04W8/18;H04W8/26;H04W72/00;H04W76/02;H04W84/04;H04W84/18 |
主分类号 |
H04B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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