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    • 6. 发明授权
    • Method for managing pre-established session, PoC system and PoC user equipment for implementing the same
    • 用于管理预先建立的会话的方法,用于实现PoC系统和PoC用户设备的方法
    • US08311567B2
    • 2012-11-13
    • US13405901
    • 2012-02-27
    • Sung-Jin ParkJi-Hye LeeWuk Kim
    • Sung-Jin ParkJi-Hye LeeWuk Kim
    • H04W4/10H04W4/08
    • H04W4/10H04L65/1006H04L65/1063H04L65/1069H04L65/403H04L65/4061H04W76/45
    • Disclosed is a method for enabling a terminating-side Push-To-Talk (PTT) over Cellular (PoC) client to open a PoC session by using a pre-established session, and to maintain the pre-established session when the terminating-side PoC client terminates the open PoC session, and a PoC system and a PoC User Equipment (UE) for implementing the same. To this end, a REFER BYE message is used to terminate the PoC session while keeping the pre-established session maintained. The REFER BYE message must include information, such as pre-established session parameter information, a session IDentifier (ID), etc. Also, the REFER BYE message is transmitted from the PoC client to the PoC server, and the PoC server receives the REFER BYE message, checks the contents of a header in the received message, and terminates the PoC session while keeping the pre-established session maintained when a specified condition is satisfied.
    • 公开了一种使终端侧按通话(PTT)通过蜂窝(PoC)客户机通过使用预先建立的会话来打开PoC会话的方法,并且当终端侧保持预先建立的会话时 PoC客户端终止开放的PoC会话,PoC系统和PoC用户设备(UE)实现该PoC会话。 为此,使用REFER BYE消息来终止PoC会话,同时保持预先建立的会话。 REFER BYE消息必须包括诸如预先建立的会话参数信息,会话标识符(ID)等的信息。此外,REFER BYE消息从PoC客户端发送到PoC服务器,PoC服务器接收REFER BYE消息,在接收到的消息中检查报头的内容,并在满足指定条件的同时保持预先建立的会话,终止PoC会话。
    • 10. 发明申请
    • METHOD FOR MANAGING ONE OR MORE MEDIA TYPES SUPPORTED IN A POC SESSION, AND A POC SYSTEM AND A POC USER EQUIPMENT FOR IMPLEMENTING THE SAME
    • 用于管理在POC会议中支持的一个或多个媒体类型的方法,以及用于实施相同的POC系统和POC用户设备
    • US20080248762A1
    • 2008-10-09
    • US12098735
    • 2008-04-07
    • Ji-Hye LeeSung-Jin ParkWuk KimEun-O Lee
    • Ji-Hye LeeSung-Jin ParkWuk KimEun-O Lee
    • H04B1/38
    • H04L65/1089H04L65/4061H04W4/10H04W76/45
    • A PoC system, method, user equipment and server used for managing one or more media types supported in a PoC session opened between a PoC server and one or more PoC clients is provided. When at least one PoC client is engaged in a Open Mobile Alliance (OMA) Push-to-talk (PPT) over Cellular (PoC) multimedia communication service and is to be withdraw from a PoC session in which the PoC client is participating, a PoC server identifies and stores information about one or more media types that were negotiated to be usable between the corresponding PoC client and the PoC server when the corresponding PoC client joined the PoC session. Next, when the number of PoC clients using the identified one or more media types among remaining PoC clients participating in the PoC session is one or less, the PoC server determines that the identified one or more media types is no longer needed for the corresponding PoC session, and corrects the PoC session so as to not use the identified one or more media types. Accordingly, when the one or more media types will not be received by any PoC client in the PoC session the use of the one or more media types in the PoC session is discontinued, so that it is possible to prevent a transmission error of the corresponding one or more media types and to save resources allocated to the corresponding one or more media types.
    • 提供了一种用于管理在PoC服务器和一个或多个PoC客户端之间打开的PoC会话中支持的一种或多种媒体类型的PoC系统,方法,用户设备和服务器。 当至少一个PoC客户端从事通过蜂窝(PoC)多媒体通信服务的开放移动联盟(OMA)即按即说(PPT))并且要从PoC客户端参与的PoC会话中撤出时, 当对应的PoC客户端加入PoC会话时,PoC服务器识别并存储关于一个或多个被协商在相应的PoC客户端和PoC服务器之间可用的媒体类型的信息。 接下来,当在参与PoC会话的剩余PoC客户端中使用所识别的一种或多种媒体类型的PoC客户端的数量是一个或更少时,PoC服务器确定所对应的PoC不再需要所标识的一个或多个媒体类型 会话,并更正PoC会话,以便不使用所标识的一种或多种媒体类型。 因此,当PoC会话中的任何PoC客户端不接收到一种或多种媒体类型时,停止在PoC会话中使用一种或多种媒体类型,从而可以防止相应的PoC会话的传输错误 一种或多种媒体类型,并且保存分配给相应的一种或多种媒体类型的资源。