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1. 发明申请

US20080228912A1 Enhanced Quality Reporting for Transmission Sessions 审中-公开
标题翻译：增强传输会话质量报告
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。

2. 发明授权

US08233446B2 System and method for an improved MBMS to PSS handover 有权
标题翻译：用于改进的MBMS到PSS切换的系统和方法
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。

3. 发明授权

US08015296B2 System and method for implementing MBMS handover during downloaded delivery 有权
标题翻译：在下载传送期间实现MBMS切换的系统和方法
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。

4. 发明申请

US20080318558A1 SYSTEM AND METHOD FOR THE SIGNALING OF SESSION CHARACTERISTICS IN A COMMUNICATION SESSION 审中-公开
标题翻译：在通信会议上进行会话特征信号的系统和方法
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。

5. 发明申请

US20080307041A1 SYSTEM AND METHOD FOR IMPLEMENTING MBMS HANDOVER DURING DOWNLOADED DELIVERY 有权
标题翻译：在下载交付期间实施MBMS HANDOVER的系统和方法
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。

6. 发明申请

US20090316615A1 SYSTEM AND METHOD FOR AN IMPROVED MBMS TO PSS HANDOVER 有权
标题翻译：用于改进对PSS切换的MBMS的系统和方法
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。

7. 发明授权

US08495228B2 System and method for optimizing download user service delivery to roaming clients 有权
标题翻译：优化向漫游客户端下载用户服务传送的系统和方法
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。

8. 发明申请

US20090077247A1 SYSTEM AND METHOD FOR OPTIMIZING DOWNLOAD USER SERVICE DELIVERY TO ROAMING CLIENTS 有权
标题翻译：用于优化下载用户服务交付给滚动客户端的系统和方法
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。

9. 发明申请

US20070183458A1 System and method for using scalable session initiation and termination in mobile broadcast/multicast services 审中-公开
标题翻译：在移动广播/多播服务中使用可扩展会话发起和终止的系统和方法
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。

10. 发明申请

US20060075321A1 Forming of error correction data 有权
标题翻译：形成纠错数据
公开(公告)号：US20060075321A1
公开(公告)日：2006-04-06
申请号：US11246920
申请日：2005-10-06
申请人： Ramakrishna Vedantham , David Leon , Igor Curcio
发明人： Ramakrishna Vedantham , David Leon , Igor Curcio
IPC分类号： H03M13/00
CPC分类号： H03M13/1102 , H03M13/2707 , H03M13/373 , H03M13/6356 , H04L1/0057
摘要： The invention relates to the generation of error correction data for available data packets 53 and to the reconstruction of missing data packets based on available data packets and available error correction data. In order to enable an efficient error correction, the data packets 53 are distributed at an encoding end to at least one block of data symbols 54, each data symbol 54 being of equal size (steps 403,404). Then all data symbols 54 of a respective block are used in an encoding operation for forming a respective one of at least one error correction symbol 56 for this block (step 405). At a decoding end, received data packets 83 are distributed again to a block of data symbols 84 and missing data packets are reconstructed based on these data symbols 84 and on error correction symbols 86 associated to the block.
摘要翻译：本发明涉及根据可用的数据分组和可用的纠错数据生成可用数据分组53的纠错数据和丢失数据分组的重构。为了实现有效的纠错，数据分组53在编码端分配给至少一个数据符号块54，每个数据符号54具有相同的大小（步骤403,404）。然后，在用于形成该块的至少一个误差校正符号56中的相应一个的编码操作中使用相应块的所有数据符号54（步骤405）。在解码端，接收的数据分组83再次分配到数据符号块84，并且基于这些数据符号84和与该块相关联的纠错符号86来重构丢失的数据分组。

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