公开(公告)号：US08233446B2

公开(公告)日：2012-07-31

申请号：US12363642

申请日：2009-01-30

申请人： Ramakrishna Vedantham ,  Imed Bouazizi

发明人： Ramakrishna Vedantham ,  Imed Bouazizi

IPC分类号： H04W4/00

CPC分类号： H04W36/02 ,  H04W4/06 ,  H04W72/005

摘要： A system and method for ensuring an improved transition at the application layer when distribution of media is changed from broadcast/multicast bearers to unicast bearers and vice versa. A mapping is defined between the timeline of a Packet-Switched Streaming Service (PSS) session and the Multimedia Broadcast Multicast Service (MBMS) session timeline. This mapping is used to enable the correct positioning of the stream in a PSS session by a PSS server after a handover has occurred. Broadcast multicast service center (BM-SC) signals can support various options for media playback after a MBMS-PSS handover in a PSS session description protocol (SDP) file or in the MBMS user service description (USD). In response, the client can signal its choice in the RTSP request that is sent when switching to the PSS session.

摘要翻译： 一种用于确保当媒体分发从广播/多播承载变为单播承载时应用层改进的转换的系统和方法，反之亦然。 在分组交换流服务（PSS）会话的时间线和多媒体广播多播服务（MBMS）会话时间线之间定义映射。 该映射用于在切换发生之后由PSS服务器在PSS会话中正确定位流。 广播多播服务中心（BM-SC）信号可以在PSS会话描述协议（SDP）文件或MBMS用户服务描述（USD）中的MBMS-PSS切换之后支持用于媒体回放的各种选项。 作为响应，客户端可以在切换到PSS会话时发送的RTSP请求中指示其选择。

公开(公告)号：US08015296B2

公开(公告)日：2011-09-06

申请号：US11971153

申请日：2008-01-08

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： G06F15/16 ,  H04B7/216 ,  H04B3/36 ,  H04H20/71 ,  H04L12/56 ,  H04J3/16

CPC分类号： H04L12/189 ,  H04L51/38 ,  H04L67/02 ,  H04L67/04 ,  H04L67/06 ,  H04W72/005 ,  H04W80/06

摘要： An improved system and method for implementing Multimedia Broadcast/Multicast Service (MBMS) handover during download delivery. Various embodiments of the present invention involve the use of the HTTP/1.1 “chunked” mode to deliver updates of the file delivery table (FDT) of a session in a push-like mode. In order to allow for push delivery of the contents of a FLUTE session, each FDT instance is encoded as one part of a multipart MIME message and is sent as a separate chunk. The receiver can interpret each of the separate chunks to extract the FDT instance from the chunks. The content type of each part of the message is set to “text/xml” or another MIMI type in order to indicate that the content is an FDT instance. After parsing the FDT instance and updating the FDT, the receiver is able to identify which files of the session are of interest and can perform a HTTP GET request to retrieve a specific file.

摘要翻译： 一种用于在下载传送期间实现多媒体广播/组播服务（MBMS）切换的改进的系统和方法。 本发明的各种实施例涉及使用HTTP / 1.1“分块”模式以推送状态传送会话的文件传递表（FDT）的更新。 为了允许推送FLUTE会话的内容，每个FDT实例被编码为多部分MIME消息的一部分，并作为单独的块发送。 接收器可以解读每个单独的块以从块中提取FDT实例。 消息的每个部分的内容类型设置为“text / xml”或另一种MIMI类型，以指示内容是FDT实例。 在解析FDT实例并更新FDT之后，接收器能够识别会话的哪些文件是感兴趣的，并且可以执行HTTP GET请求以检索特定文件。

公开(公告)号：US20080318558A1

公开(公告)日：2008-12-25

申请号：US12141011

申请日：2008-06-17

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： H04M3/42

CPC分类号： H04L67/16 ,  H04L12/189 ,  H04L65/1069 ,  H04L65/403 ,  H04L69/24 ,  H04M1/72519 ,  H04M2250/62 ,  H04W76/40

摘要： A system and method for specifying requirements for the consumption of an MBMS user service. This system and method is forward-compatible and allows for legacy terminals to detect if a new feature, introduced in later releases, is required for the consumption of the service. If a required feature is not supported, then the terminal will not attempt to join the session. The service announcement or service discovery carries information about the requirements for the MBMS user service. Any requirement that is not understood by the terminal indicates to the terminal that it cannot correctly receive and decode the service.

摘要翻译： 一种用于指定MBMS用户服务消费的要求的系统和方法。 该系统和方法是前向兼容的，并且允许传统终端检测是否需要在后续版本中引入的新功能来消费服务。 如果不支持所需功能，则终端将不会尝试加入会话。 业务通告或业务发现携带有关MBMS用户业务需求的信息。 终端不理解的任何要求向终端指示无法正确接收和解码服务。

公开(公告)号：US20080307041A1

公开(公告)日：2008-12-11

申请号：US11971153

申请日：2008-01-08

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： G06F15/16

CPC分类号： H04L12/189 ,  H04L51/38 ,  H04L67/02 ,  H04L67/04 ,  H04L67/06 ,  H04W72/005 ,  H04W80/06

摘要： An improved system and method for implementing Multimedia Broadcast/Multicast Service (MBMS) handover during download delivery. Various embodiments of the present invention involve the use of the HTTP/1.1 “chunked” mode to deliver updates of the file delivery table (FDT) of a session in a push-like mode. In order to allow for push delivery of the contents of a FLUTE session, each FDT instance is encoded as one part of a multipart MIME message and is sent as a separate chunk. The receiver can interpret each of the separate chunks to extract the FDT instance from the chunks. The content type of each part of the message is set to “text/xml” or another MIMI type in order to indicate that the content is an FDT instance. After parsing the FDT instance and updating the FDT, the receiver is able to identify which files of the session are of interest and can perform a HTTP GET request to retrieve a specific file.

摘要翻译： 一种用于在下载传送期间实现多媒体广播/组播服务（MBMS）切换的改进的系统和方法。 本发明的各种实施例涉及使用HTTP / 1.1“分块”模式以推送状态传送会话的文件传递表（FDT）的更新。 为了允许推送FLUTE会话的内容，每个FDT实例被编码为多部分MIME消息的一部分，并作为单独的块发送。 接收器可以解读每个单独的块以从块中提取FDT实例。 消息的每个部分的内容类型设置为“text / xml”或另一种MIMI类型，以指示内容是FDT实例。 在解析FDT实例并更新FDT之后，接收器能够识别会话的哪些文件是感兴趣的，并且可以执行HTTP GET请求以检索特定文件。

公开(公告)号：US20080228912A1

公开(公告)日：2008-09-18

申请号：US11687460

申请日：2007-03-16

申请人： Ramakrishna Vedantham ,  Imed Bouazizi ,  Igor Curcio

发明人： Ramakrishna Vedantham ,  Imed Bouazizi ,  Igor Curcio

IPC分类号： G06F15/173

CPC分类号： H04L65/80 ,  H04N21/4384 ,  H04N21/44209 ,  H04N21/643 ,  H04N21/6582

摘要： This invention relates to methods, computer program products, clients, servers, systems and protocols in the context of reporting a quality of a transmission session according to one or more metrics, inter alia to adapt quality reporting to a switching of content within the transmission session and to allow faster session startup.

摘要翻译： 本发明涉及在根据一个或多个指标报告传输会话的质量的上下文中的方法，计算机程序产品，客户端，服务器，系统和协议，特别是使质量报告适应于传输会话内的内容切换 并允许更快的会话启动。

公开(公告)号：US20090316615A1

公开(公告)日：2009-12-24

申请号：US12363642

申请日：2009-01-30

申请人： Ramakrishna Vedantham ,  Imed Bouazizi

发明人： Ramakrishna Vedantham ,  Imed Bouazizi

IPC分类号： H04H20/71

CPC分类号： H04W36/02 ,  H04W4/06 ,  H04W72/005

摘要： A system and method for ensuring an improved transition at the application layer when distribution of media is changed from broadcast/multicast bearers to unicast bearers and vice versa. A mapping is defined between the timeline of a Packet-Switched Streaming Service (PSS) session and the Multimedia Broadcast Multicast Service (MBMS) session timeline. This mapping is used to enable the correct positioning of the stream in a PSS session by a PSS server after a handover has occurred. Broadcast multicast service center (BM-SC) signals can support various options for media playback after a MBMS-PSS handover in a PSS session description protocol (SDP) file or in the MBMS user service description (USD). In response, the client can signal its choice in the RTSP request that is sent when switching to the PSS session.

摘要翻译： 一种用于确保当媒体分发从广播/多播承载变为单播承载时应用层改进的转换的系统和方法，反之亦然。 在分组交换流服务（PSS）会话的时间线和多媒体广播多播服务（MBMS）会话时间线之间定义映射。 该映射用于在切换发生之后由PSS服务器在PSS会话中正确定位流。 广播多播服务中心（BM-SC）信号可以在PSS会话描述协议（SDP）文件或MBMS用户服务描述（USD）中的MBMS-PSS切换之后支持用于媒体回放的各种选项。 作为响应，客户端可以在切换到PSS会话时发送的RTSP请求中指示其选择。

公开(公告)号：US08495228B2

公开(公告)日：2013-07-23

申请号：US12104304

申请日：2008-04-16

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： G06F15/16

CPC分类号： H04L12/189 ,  H04L65/4076 ,  H04L67/02 ,  H04L67/06 ,  H04L67/26 ,  H04W72/005

摘要： A system and method for providing MBMS content distribution using unicast bearers. According to various embodiments, MBMS download user services are delivered to pieces of user equipment by delivering a FLUTE file delivery table via an OMA Push message. One of a number of different additional actions may be used in the delivery of the MBMS download user services. These actions include (1) making a single HTTP GET request using simple URL-encoding format to retrieve all files of the FDT; (2) making a single HTTP GET request using “group” field of FDT in URL-encoding to retrieve a logical group of files of the FDT; (3) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (4) making serialized HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (5) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (6) making serialized HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (7) delivering the serviceID of the MBMS user service in the above mentioned OMA PUSH message but not including the serviceID in the FLUTE FDT; (8) an HTTP request to de-register the MBMS UE from the BM-SC for stopping the unicast delivery of the MBMS download user service; and (9) delivering the FDT Instance ID of the FDT Instance in an OMA Push message.

摘要翻译： 一种使用单播承载提供MBMS内容分发的系统和方法。 根据各种实施例，通过经由OMA推送消息传送FLUTE文件传递表，将MBMS下载用户服务传递给用户设备。 可以在传送MBMS下载用户服务中使用多种不同的附加动作中的一种。 这些操作包括（1）使用简单的URL编码格式制作单个HTTP GET请求来检索FDT的所有文件; （2）使用URL编码中的FDT的“group”字段来生成单个HTTP GET请求，以检索FDT的文件的逻辑组; （3）制作流水线HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT文件; （4）制作序列化的HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT文件; （5）制作流水线HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT的文件组; （6）进行序列化的HTTP GET请求，其中每个HTTP GET请求检索FDT的文件的至少一个逻辑组; （7）在上述OMA PUSH消息中传送MBMS用户业务的业务ID，但不包括在FLUTE FDT中的业务ID; （8）从用于停止MBMS下载用户业务的单播传送的BM-SC去注册MBMS UE的HTTP请求; 和（9）在OMA推送消息中传送FDT实例的FDT实例ID。

公开(公告)号：US20090077247A1

公开(公告)日：2009-03-19

申请号：US12104304

申请日：2008-04-16

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： G06F15/16

CPC分类号： H04L12/189 ,  H04L65/4076 ,  H04L67/02 ,  H04L67/06 ,  H04L67/26 ,  H04W72/005

摘要： A system and method for providing MBMS content distribution using unicast bearers. According to various embodiments, MBMS download user services are delivered to pieces of user equipment by delivering a FLUTE file delivery table via an OMA Push message. One of a number of different additional actions may be used in the delivery of the MBMS download user services. These actions include (1) making a single HTTP GET request using simple URL-encoding format to retrieve all files of the FDT; (2) making a single HTTP GET request using “group” field of FDT in URL-encoding to retrieve a logical group of files of the FDT; (3) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (4) making serialized HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (5) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (6) making serialized HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (7) delivering the serviceID of the MBMS user service in the above mentioned OMA PUSH message but not including the serviceID in the FLUTE FDT; (8) an HTTP request to de-register the MBMS UE from the BM-SC for stopping the unicast delivery of the MBMS download user service; and (9) delivering the FDT Instance ID of the FDT Instance in an OMA Push message.

摘要翻译： 一种使用单播承载提供MBMS内容分发的系统和方法。 根据各种实施例，通过经由OMA推送消息传送FLUTE文件传递表，将MBMS下载用户服务传递给用户设备。 可以在传送MBMS下载用户服务中使用多种不同的附加动作中的一种。 这些操作包括（1）使用简单的URL编码格式制作单个HTTP GET请求来检索FDT的所有文件; （2）使用URL编码中的FDT的“group”字段来生成单个HTTP GET请求，以检索FDT的文件的逻辑组; （3）制作流水线HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT文件; （4）制作序列化的HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT文件; （5）制作流水线HTTP GET请求，其中每个HTTP GET请求检索至少一个FDT的文件组; （6）进行序列化的HTTP GET请求，其中每个HTTP GET请求检索FDT的文件的至少一个逻辑组; （7）在上述OMA PUSH消息中传送MBMS用户业务的业务ID，但不包括在FLUTE FDT中的业务ID; （8）从用于停止MBMS下载用户业务的单播传送的BM-SC去注册MBMS UE的HTTP请求; 和（9）在OMA推送消息中传送FDT实例的FDT实例ID。

公开(公告)号：US20070183458A1

公开(公告)日：2007-08-09

申请号：US11348026

申请日：2006-02-06

申请人： Imed Bouazizi ,  Ramakrishna Vedantham

发明人： Imed Bouazizi ,  Ramakrishna Vedantham

IPC分类号： H04J3/00

CPC分类号： H04W4/08 ,  H04L12/1881 ,  H04L12/189 ,  H04M3/42153 ,  H04M3/4872 ,  H04M7/006 ,  H04M2201/14 ,  H04M2203/205 ,  H04M2203/353 ,  H04M2207/18 ,  H04W8/186

摘要： An improved system and method for scheduling Join or Leave operations in a MBMS system. When a Join operation or a Leave operation is initiated by user equipment, it is determined whether the current time is within a protection period. If the current time is within a protection period, a first random time is calculated and an operation message is scheduled for transmission at the first random time. If the current time is outside of a protection but within an allowed period, the operation message is scheduled for immediate transmission. If the current time is outside of a protection and outside of the allowed period, a second random time is calculated and the operation message is scheduled to be sent at the second random time.

摘要翻译： 一种用于在MBMS系统中调度Join或Leave操作的改进的系统和方法。 当由用户设备发起Join操作或Leave操作时，确定当前时间是否在保护期内。 如果当前时间在保护期内，则计算第一随机时间，并且在第一随机时间调度操作消息进行发送。 如果当前时间在保护范围之外但在允许的时间段内，则操作消息被安排为立即传送。 如果当前时间在保护范围之外并且在允许的时间段之外，则计算第二随机时间，并且调度在第二随机时间发送操作消息。

公开(公告)号：US09672659B2

公开(公告)日：2017-06-06

申请号：US13337930

申请日：2011-12-27

申请人： Urban Velkavrh ,  Mridul Aanjaneya ,  Timo Pekka Pylvänäinen ,  Radek Grzeszczuk ,  Ramakrishna Vedantham

发明人： Urban Velkavrh ,  Mridul Aanjaneya ,  Timo Pekka Pylvänäinen ,  Radek Grzeszczuk ,  Ramakrishna Vedantham

IPC分类号： G06T17/20 ,  G06T17/05 ,  G06T19/00 ,  G06T15/20

CPC分类号： G06T15/20 ,  G06T15/40 ,  G06T17/05 ,  G06T17/20 ,  G06T19/006

摘要： An approach is provided for providing perspective-based content placement. A content placement platform processes and/or facilitates a processing of one or more models of one or more objects associated with a geographical area to cause, at least in part, a decomposition of the one or more models into one or more simplified surfaces. The content placement platform further causes, at least in part, a selection of one or more portions of the one or more simplified surfaces as one or more content placement layers based, at least in part, on one or more viewpoints, with the one or more content placement layers supporting a perspective-based rendering of one or more content items associated with the one or more objects.