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公开(公告)号：US08489749B2
公开(公告)日：2013-07-16
申请号：US12439385
申请日：2007-08-27
申请人： Uwe Horn , Thorsten Lohmar
发明人： Uwe Horn , Thorsten Lohmar
IPC分类号： G06F15/177 , G06F15/173 , G06F15/16 , H04N7/173 , H04L29/06
CPC分类号： H04L29/06 , H04L12/185 , H04L12/1877 , H04L29/06027 , H04L29/06088 , H04L65/1026 , H04L65/1036 , H04L65/4076 , H04L65/605 , H04L69/14
摘要： A system, method, and media edge proxy, MEP, (17) for providing media data such as Internet Protocol Television, IPTV, or Internet radio channels to a media client (12). The MEP obtains the media data from a media server (18) utilizing a temporary unicast connection and provides the media data obtained from the server to the media client for an initial time period. Upon determining that the initial time period has expired, the MEP obtains the media data via multicast from a multicast router (27), provides the media data obtained from the router to the media client, and releases the temporary unicast connection. The invention reduces channel switching delay and thus improves quality-of-experience for the end-user. The invention also avoids excessive IGMP JOIN/LEAVE signaling when a user switches quickly through channels.
摘要翻译： 用于向媒体客户端（12）提供诸如因特网协议电视，IPTV或因特网无线电频道的媒体数据的系统，方法和媒体边缘代理（MEP）（17）。 MEP使用临时单播连接从媒体服务器（18）获取媒体数据，并将从服务器获得的媒体数据提供给媒体客户端一段初始时间段。 在确定初始时间段已经到期时，MEP通过来自组播路由器（27）的多播获得媒体数据，将从路由器获得的媒体数据提供给媒体客户端，并释放临时单播连接。 本发明减少了通道切换延迟，从而提高了终端用户的体验质量。 当用户快速切换通道时，本发明还可以避免过多的IGMP JOIN / LEAVE信令。
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公开(公告)号：US20080109853A1
公开(公告)日：2008-05-08
申请号：US11826026
申请日：2007-07-11
IPC分类号： H04N7/16
CPC分类号： H04N7/17318 , H04L65/1006 , H04L65/1069 , H04L65/1083 , H04L65/608 , H04N21/2225 , H04N21/2668 , H04N21/41407 , H04N21/47202 , H04N21/6405 , H04N21/6408 , H04N21/643
摘要： A method of managing a unicast-based media session is disclosed. A user terminal (100) having access to channel identifiers of media channels (400, 410) available at a media server compiles a SIP-based channel request comprising a channel identifier of one of the available media channels (400, 410) and a port identifier of at least one media input port of the terminal (100). This message is sent to a network node (200, 300) for initiating delivery of media data of selected media channel to the announced media input port (115). The SIP-based data signaling also allows switching between unicast-based media channels and switching between unicast-bast and multicast/broadcast-based media channels during the ongoing media session.
摘要翻译： 公开了一种管理基于单播的媒体会话的方法。 具有访问在媒体服务器可用的媒体信道（400,410）的信道标识符的用户终端（100）编译基于SIP的信道请求，其包括可用媒体信道（400,410）之一的信道标识符和端口 终端（100）的至少一个媒体输入端口的标识符。 该消息被发送到网络节点（200,300），用于发起所选择的媒体信道的媒体数据到所宣布的媒体输入端口（115）的传送。 基于SIP的数据信令还允许在正在进行的媒体会话期间在基于单播的媒体信道之间切换和基于单播和基于多播/广播的媒体信道之间的切换。
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公开(公告)号：US20120239779A1
公开(公告)日：2012-09-20
申请号：US13484908
申请日：2012-05-31
IPC分类号： G06F15/16
CPC分类号： H04L29/06027 , H04L65/4084 , H04N21/23424 , H04N21/4383 , H04N21/4384 , H04N21/44016 , H04N21/6408 , H04N21/643 , H04N21/6437 , H04N21/6587
摘要： The media session management of the invention encompasses a media server having access to multiple unicast-based media channels and a user terminal. The user terminal generates and transmits a generic, channel-transparent session request to the server. This request initiates a generic, channel-transparent media session setup procedure between the terminal and the server. The setup procedure involves exchange of requests and responses but no media channel is yet selected or notified at the server. Once the channel-transparent setup has been completed, the user terminal transmits a channel-specific rendering request for a desired media channel to the server. In a subsequent channel switch, the terminal simply transmits a new channel-specific request for a new channel to the server during the ongoing session and reusing the negotiated transport parameters of the channel-transparent setup procedure.
摘要翻译： 本发明的媒体会话管理包括具有访问多个基于单播的媒体信道和用户终端的媒体服务器。 用户终端生成并发送通用的，透明的通道会话请求给服务器。 该请求在终端和服务器之间发起通用，通道透明的媒体会话建立过程。 设置过程涉及请求和响应的交换，但是在服务器上尚未选择或通知媒体频道。 一旦通道透明设置已经完成，用户终端向服务器发送针对期望的媒体信道的特定于频道的呈现请求。 在随后的信道交换机中，终端在正在进行的会话期间简单地向服务器发送新的信道特定请求，并重新使用通道透明建立过程的协商传输参数。
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公开(公告)号：US20120174147A1
公开(公告)日：2012-07-05
申请号：US13418673
申请日：2012-03-13
申请人： Thorsten Lohmar , Uwe Horn
发明人： Thorsten Lohmar , Uwe Horn
IPC分类号： H04N21/237 , H04N21/43 , H04N21/64
CPC分类号： H04L67/42 , H04L12/1868 , H04L12/1881 , H04L65/4076 , H04L67/28
摘要： The invention is embodied in a technique for broadcasting content data from a broadcaster (including a multicaster) to a plurality of clients. After a client receives content data from the broadcaster, a plurality of available proxy servers may be contacted for post-processing after the content data broadcast is determined. The client subsequently randomly selects one of the available proxy servers to contact for post-processing after the content data broadcast. The client may further randomly select a delay time within a contact interval for the selected proxy server, at which time the client contacts the selected proxy server at the delay time to initiate post-processing.
摘要翻译： 本发明体现在一种用于从广播者（包括多播）到多个客户端广播内容数据的技术。 在客户端从广播者接收到内容数据之后，可以在确定内容数据广播之后联系多个可用代理服务器进行后处理。 客户随后随机选择可用的代理服务器中的一个，以在内容数据广播之后进行后处理。 客户端可以进一步随机选择所选择的代理服务器的联系时间间隔内的延迟时间，在该间隔期间客户端以延迟时间与所选择的代理服务器联系以启动后处理。
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公开(公告)号：US08230044B2
公开(公告)日：2012-07-24
申请号：US12305161
申请日：2007-05-04
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04L29/06027 , H04L65/4084 , H04N21/23424 , H04N21/4383 , H04N21/4384 , H04N21/44016 , H04N21/6408 , H04N21/643 , H04N21/6437 , H04N21/6587
摘要： The media session management of the invention encompasses a media server having access to multiple unicast-based media channels and a user terminal. The user terminal generates and transmits a generic, channel-transparent session request to the server. This request initiates a generic, channel-transparent media session setup procedure between the terminal and the server. The setup procedure involves exchange of requests and responses but no media channel is yet selected or notified at the server. Once the channel-transparent setup has been completed, the user terminal transmits a channel-specific rendering request for a desired media channel to the server. In a subsequent channel switch, the terminal simply transmits a new channel-specific request for a new channel to the server during the ongoing session and reusing the negotiated transport parameters of the channel-transparent setup procedure.
摘要翻译： 本发明的媒体会话管理包括具有访问多个基于单播的媒体信道和用户终端的媒体服务器。 用户终端生成并发送通用的，透明的通道会话请求给服务器。 该请求在终端和服务器之间发起通用，通道透明的媒体会话建立过程。 设置过程涉及请求和响应的交换，但是在服务器上尚未选择或通知媒体频道。 一旦通道透明设置已经完成，用户终端向服务器发送针对期望的媒体信道的特定于频道的呈现请求。 在随后的信道交换机中，终端在正在进行的会话期间简单地向服务器发送新的信道特定请求，并重新使用通道透明建立过程的协商传输参数。
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公开(公告)号：US08200245B2
公开(公告)日：2012-06-12
申请号：US12302955
申请日：2006-06-02
申请人： Thorsten Lohmar , Uwe Horn
发明人： Thorsten Lohmar , Uwe Horn
CPC分类号： H04L12/189 , H04L67/18 , H04W4/02
摘要： A technique for controlling a point-to-multipoint (PTM) transmission of data over a PTM-enabled network (150) to a user group is proposed. In a first PTM transmission, a location information query message is distributed into a group service area (154). Upon receiving the query message, items of user equipment respond with location information response messages comprising location information indicative of a location of the respective user equipment. On the basis of the received location information response messages, a content transmission area (156, 157, 158) is determined. A second PTM transmission is then initiated into the content transmission area for content distribution. Furthermore, the content may be distributed via unicast retrieval.
摘要翻译： 提出了一种用于通过支持PTM的网络（150）向用户组控制数据的点对多点（PTM）传输的技术。 在第一PTM传输中，位置信息查询消息被分发到组服务区（154）中。 在接收到查询消息时，用户设备的项目响应包括指示相应用户设备的位置的位置信息的位置信息响应消息。 基于所接收的位置信息响应消息，确定内容传输区域（156,157,158）。 然后将第二PTM传输发送到用于内容分发的内容传输区域中。 此外，可以通过单播检索分发内容。
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公开(公告)号：US20100223357A1
公开(公告)日：2010-09-02
申请号：US12305161
申请日：2007-05-04
IPC分类号： G06F15/16
CPC分类号： H04L29/06027 , H04L65/4084 , H04N21/23424 , H04N21/4383 , H04N21/4384 , H04N21/44016 , H04N21/6408 , H04N21/643 , H04N21/6437 , H04N21/6587
摘要： The media session management of the invention encompasses a media server having access to multiple unicast-based media channels and a user terminal. The user terminal generates and transmits a generic, channel-transparent session request to the server. This request initiates a generic, channel-transparent media session setup procedure between the terminal and the server. The setup procedure involves exchange of requests and responses but no media channel is yet selected or notified at the server. Once the channel-transparent setup has been completed, the user terminal transmits a channel-specific rendering request for a desired media channel to the server. In a subsequent channel switch, the terminal simply transmits a new channel-specific request for a new channel to the server during the ongoing session and reusing the negotiated transport parameters of the channel-transparent setup procedure.
摘要翻译： 本发明的媒体会话管理包括具有访问多个基于单播的媒体信道和用户终端的媒体服务器。 用户终端生成并发送通用的，透明的通道会话请求给服务器。 该请求在终端和服务器之间发起通用，通道透明的媒体会话建立过程。 设置过程涉及请求和响应的交换，但是在服务器上尚未选择或通知媒体频道。 一旦通道透明设置已经完成，用户终端向服务器发送针对期望的媒体信道的特定于频道的呈现请求。 在随后的信道交换机中，终端在正在进行的会话期间简单地向服务器发送新的信道特定请求，并重新使用通道透明建立过程的协商传输参数。
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公开(公告)号：US20100017463A1
公开(公告)日：2010-01-21
申请号：US12439385
申请日：2007-08-27
申请人： Uwe Horn , Thorsten Lohmar
发明人： Uwe Horn , Thorsten Lohmar
IPC分类号： G06F15/16
CPC分类号： H04L29/06 , H04L12/185 , H04L12/1877 , H04L29/06027 , H04L29/06088 , H04L65/1026 , H04L65/1036 , H04L65/4076 , H04L65/605 , H04L69/14
摘要： A system, method, and media edge proxy, MEP, (17) for providing media data such as Internet Protocol Television, IPTV, or Internet radio channels to a media client (12). The MEP obtains the media data from a media server (18) utilizing a temporary unicast connection and provides the media data obtained from the server to the media client for an initial time period. Upon determining that the initial time period has expired, the MEP obtains the media data via multicast from a multicast router (27), provides the media data obtained from the router to the media client, and releases the temporary unicast connection. The invention reduces channel switching delay and thus improves quality-of-experience for the end-user. The invention also avoids excessive IGMP JOIN/LEAVE signaling when a user switches quickly through channels.
摘要翻译： 用于向媒体客户端（12）提供诸如因特网协议电视，IPTV或因特网无线电频道的媒体数据的系统，方法和媒体边缘代理（MEP）（17）。 MEP使用临时单播连接从媒体服务器（18）获取媒体数据，并将从服务器获得的媒体数据提供给媒体客户端一段初始时间段。 在确定初始时间段已经到期时，MEP通过来自组播路由器（27）的多播获得媒体数据，将从路由器获得的媒体数据提供给媒体客户端，并释放临时单播连接。 本发明减少了通道切换延迟，从而提高了终端用户的体验质量。 当用户快速切换通道时，本发明还可以避免过多的IGMP JOIN / LEAVE信令。
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公开(公告)号：US20070283026A1
公开(公告)日：2007-12-06
申请号：US10597956
申请日：2004-02-18
申请人： Thorsten Lohmar , Uwe Horn
发明人： Thorsten Lohmar , Uwe Horn
IPC分类号： H04L12/18
CPC分类号： H04L67/42 , H04L12/1868 , H04L12/1881 , H04L65/4076 , H04L67/28
摘要： The invention is embodied in a technique for broadcasting content data from a broadcaster (including a multicaster) to a plurality of clients. After a client receives content data from the broadcaster, a plurality of available proxy servers may be contacted for post-processing after the content data broadcast is determined. The client subsequently randomly selects one of the available proxy servers to contact for post-processing after the content data broadcast. The client may further randomly select a delay time within a contact interval for the selected proxy server, at which time the client contacts the selected proxy server at the delay time to initiate post-processing.
摘要翻译： 本发明体现在一种用于从广播者（包括多播）到多个客户端广播内容数据的技术。 在客户端从广播者接收到内容数据之后，可以在确定内容数据广播之后联系多个可用代理服务器进行后处理。 客户随后随机选择可用的代理服务器中的一个，以在内容数据广播之后进行后处理。 客户端可以进一步随机选择所选择的代理服务器的联系时间间隔内的延迟时间，在该间隔期间客户端以延迟时间与所选择的代理服务器联系以启动后处理。
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公开(公告)号：US09491408B2
公开(公告)日：2016-11-08
申请号：US12096694
申请日：2006-01-17
申请人： Uwe Horn , Thorsten Lohmar
发明人： Uwe Horn , Thorsten Lohmar
IPC分类号： H04N5/445 , H04N7/173 , H04H20/24 , H04H20/26 , H04L29/06 , H04N21/235 , H04N21/4143 , H04N21/435 , H04N21/438 , H04N21/61 , H04N21/64 , H04N21/6543 , H04N21/658 , H04N5/50
CPC分类号： H04N7/173 , H04H20/24 , H04H20/26 , H04H2201/30 , H04L63/20 , H04N5/50 , H04N7/17318 , H04N21/235 , H04N21/4143 , H04N21/435 , H04N21/4383 , H04N21/6131 , H04N21/64 , H04N21/6543 , H04N21/6582
摘要： A technique for controlling the distribution of content via broadcast bearers and non-broadcast bearers is described. A method embodiment of this technique includes the steps of providing a plurality of content channels, each content channel being associated with at least one of a first bearer type and a second bearer type, maintaining mapping information for the content channels, the mapping information being indicative of the bearer associations between content channels and bearer types, and controlling content distribution in accordance with the associations between content channels and bearer types.
摘要翻译： 描述了通过广播承载和非广播承载来控制内容分发的技术。 该技术的方法实施例包括提供多个内容信道的步骤，每个内容信道与第一承载类型和第二承载类型中的至少一个相关联，维护内容信道的映射信息，映射信息指示 内容信道与承载类型之间的承载关联，以及根据内容信道和承载类型之间的关联来控制内容分发。
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