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    • 3. 发明申请
    • SIP message extension for push to watch service
    • 用于推送观看服务的SIP消息扩展
    • US20060034195A1
    • 2006-02-16
    • US11186139
    • 2005-07-21
    • Donatella BlaiottaStefano Micocci
    • Donatella BlaiottaStefano Micocci
    • H04Q11/00
    • H04L65/1006H04L65/1016H04L65/4061H04W68/00H04W76/10H04W80/10H04W84/18
    • A PTW (Push To Watch) server inside an IMS platform implements a SIP-based protocol to deliver real time media streaming contents inside a PLMN coverage area. The PTW server adopts alternative use and definition of the SIP MESSAGE request and a new mimic for the interaction scheme. Three different labels, respectively named: refer, ok, and bye are introduced in the header field “subject” of SIP MESSAGE to notify type and destination of the body content Three corresponding SIP MESSAGE(refer), SIP MESSAGE(ok), and SIP MESSAGE(bye) are used in the involved procedures. In “Session establishment procedure” the PTW server receives the INVITE request message from the inviter user and sends in correspondence as many SIP INVITE request messages as the number of the invited users each containing a list including the Public user identity of each user already in the session except the inviting. Then, based on the responses from the invited users, the PTW server sends to the inviter user as many MESSAGE(refer) as the number of invited users carrying in the body content the respective responses (e.g.: invited accepted or denied), and contemporarily sends to each invited user which has accepted the invite a MESSAGE(ok) containing in the body a list including the public user identity of each invited user that has accepted, except the recipient. The “Add user procedure” is quite similar to the preceding one but instead of INVITE the PTW server receives a REFER from an user which intends to add new users. In “Leaving session procedure” the PTW server receives the BYE request message from an user that intends to leave the session and sends in correspondence as many SIP MESSAGE(bye) to all the remaining participants; each message contains in the body content a list including the public identity of each participant which has left the session
    • IMS平台内的PTW(Push To Watch)服务器实现基于SIP的协议,以在PLMN覆盖区域内传送实时媒体流内容。 PTW服务器采用SIP MESSAGE请求的替代使用和定义,以及交互方案的新模拟。 三个不同的标签,分别命名为:参考,ok和再见,引入SIP MESSAGE的头字段“主题”,以通知身体内容的类型和目的地三个相应的SIP MESSAGE(参考),SIP MESSAGE(OK)和SIP MESSAGE(再见)用于相关程序。 在“会话建立过程”中,PTW服务器从邀请用户接收到INVITE请求消息,并且相应地发送许多SIP INVITE请求消息,因为每个邀请用户的数量包含包括已经在每个用户的每个用户的公共用户身份的列表 会话除了邀请。 然后,根据受邀用户的响应,PTW服务器向承载用户发送尽可能多的MESSAGE(参考),作为携带身体内容的被邀请用户的个人内容的相应响应(例如:被接受或被拒绝),并且同时 向接受邀请的每个被邀请的用户发送包含身体中的MESSAGE(OK)的列表,其中包括除了接收者之外已接受的每个受邀用户的公共用户身份。 “添加用户过程”与上述非常相似,但是代替INVITE,PTW服务器从用户接收到要添加新用户的REFER。 在“离开会话过程”中,PTW服务器从打算离开会话的用户接收到BYE请求消息,并向所有剩余参与者发送相应的SIP MESSAGE(再见)消息; 每个消息在身体内容中包含一个列表,其中包括已经离开会话的每个参与者的公共身份