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    • 1. 发明申请
    • SYSTEM AND METHOD FOR AN IMPROVED MBMS TO PSS HANDOVER
    • 用于改进对PSS切换的MBMS的系统和方法
    • WO2008155713A2
    • 2008-12-24
    • PCT/IB2008/052371
    • 2008-06-17
    • NOKIA CORPORATIONNOKIA INCVEDANTHAM, RamakrishnaBOUAZIZI, Imed
    • VEDANTHAM, RamakrishnaBOUAZIZI, Imed
    • H04W4/00
    • H04L65/4076H04L65/608H04W36/08H04W48/08H04W72/005
    • 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.
    • 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. 发明申请
    • SYSTEM AND METHOD FOR OPTIMIZING DOWNLOAD USER SERVICE DELIVERY TO ROAMING CLIENTS
    • 用于优化下载用户服务交付给滚动客户端的系统和方法
    • WO2008129471A2
    • 2008-10-30
    • PCT/IB2008/051466
    • 2008-04-16
    • NOKIA CORPORATIONBOUAZIZI, ImedVEDANTHAM, Ramakrishna
    • BOUAZIZI, ImedVEDANTHAM, Ramakrishna
    • H04L12/18
    • H04L12/189H04L65/4076H04L67/02H04L67/06H04L67/26H04W72/005
    • 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 al least one logical group of files of the FDT; (7) delivering the servicelD of the MBMS user service in the above mentioned OMA PUSH message but not including the servicelD 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,
    • 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”字段进行单个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用户服务的服务ID,但不包括在FLUTE FDT中的服务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,
    • 6. 发明申请
    • SYSTEM AND METHOD FOR IMPLEMENTING MBMS HANDOVER DURING DOWNLOAD DELIVERY
    • 在下载传送期间实施MBMS HANDOVER的系统和方法
    • WO2008084441A1
    • 2008-07-17
    • PCT/IB2008/050051
    • 2008-01-08
    • NOKIA CORPORATIONBOUAZIZI, ImedVEDANTHAM, Ramakrishna
    • BOUAZIZI, ImedVEDANTHAM, Ramakrishna
    • H04H20/57H04L12/18H04L29/08H04Q7/38
    • H04L12/189H04L51/38H04L67/02H04L67/04H04L67/06H04W72/005H04W80/06
    • 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.
    • 一种用于在下载传送期间实现多媒体广播/多播服务(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。
    • 8. 发明申请
    • SYSTEM AND METHOD FOR RE-SYNCHRONIZATION OF A PSS SESSION TO AN MBMS SESSION
    • PSS会话与MBMS会话重新同步的系统和方法
    • WO2009053899A2
    • 2009-04-30
    • PCT/IB2008/054322
    • 2008-10-21
    • NOKIA CORPORATIONNOKIA INCKONDRAD, LukaszBOUAZIZI, Imed
    • KONDRAD, LukaszBOUAZIZI, Imed
    • H04L65/4076H04L65/608H04L65/80
    • An accurate indication of a re-synchronization point/time in streamed media content is provided to allow playout of the streamed media content from or at a desired point/time when a client or receiver switches from multimedia broadcast multicast service (MBMS) to packet switch stream (PSS) service. Various parameters, e.g., synchronization source (SSRC) and real-time protocol (RTP) timestamp, of a last received media RTP packet is signaled to a receiver. Alternatively, the SSRC and sequence number of the last received media RTP packet is signaled to the receiver, or the SSRC, the RTP timestamp, and the sequence number of the last received media RTP packet is signaled to the receiver. Also, a UTC clock time can be calculated based upon the last received real-time control protocol (RTCP) sender report (SR) and the timestamp of the last received media RTP packet in order to effectuate proper synchronization between MBMS and PSS servers.
    • 提供流媒体内容中的重新同步点/时间的准确指示,以便当客户端或接收机从多媒体广播多播服务(MBMS)切换到分组交换机时,从或在期望点/时间播放流媒体内容 流(PSS)服务。 将最后接收到的媒体RTP分组的各种参数,例如同步源(SSRC)和实时协议(RTP)时间戳信号通知给接收机。 或者,将SSRC和最后接收到的媒体RTP分组的序列号发信号通知给接收机,或SSRC,RTP时间戳和最后接收的媒体RTP分组的序列号发信号通知接收机。 另外,可以基于最后接收到的实时控制协议(RTCP)发送者报告(SR)和最后接收到的媒体RTP分组的时间戳来计算UTC时钟时间,以便实现MBMS和PSS服务器之间的适当同步。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR SIGNALING UPDATES TO NOTIFICATION SESSION IN IP DATACAST
    • 用于在IP数据库中进行通知会话更新的方法和装置
    • WO2009001238A2
    • 2008-12-31
    • PCT/IB2008/052128
    • 2008-05-30
    • NOKIA CORPORATIONNOKIA, INC.BOUAZIZI, ImedVARE, JaniHORNSBY, Adrian
    • BOUAZIZI, ImedVARE, JaniHORNSBY, Adrian
    • H04H60/25
    • H04H20/93H04H20/42H04H20/59H04H60/25
    • Systems and methods of signaling changes and updates associated with the default notification channels in a non-time sliced way are provided. A default notification channel event is signaled to a terminal. The signaling includes a reference to the relevant default notification channel, a timestamp, and/or a version number/counter. A comparison is made between a stored timestamp and/or version number/counter with the timestamp and/or version number/counter indicated in the signaling. A more recent timestamp and/or version number/counter prompts the terminal to tune in to the default notification channel to process the default notification channel event. The signaling can be performed using Program Specific Information/Service Information (PSI/SI), which is non-time-sliced and is received by all terminals. Additionally, the PSI/SI signaling is effectuated by creating descriptors in existing notification/network information tables and/or by creating a dedicated notification signaling table.
    • 提供以非时间切片方式发送与默认通知信道相关联的更改和更新的系统和方法。 向终端发出默认通知通道事件。 信令包括对相关默认通知信道,时间戳和/或版本号/计数器的引用。 在存储的时间戳和/或版本号/计数器之间进行与信令中指示的时间戳和/或版本号/计数器的比较。 更新的时间戳和/或版本号/计数器提示终端调入默认通知通道以处理默认通知通道事件。 可以使用非时间分片并由所有终端接收的节目特定信息/服务信息(PSI / SI)来执行信令。 此外,通过在现有通知/网络信息表中创建描述符和/或通过创建专用通知信令表来实现PSI / SI信令。
    • 10. 发明申请
    • METHOD FOR SUPPORTING FILE VERSIONING IN MBMS FILE REPAIR
    • 在MBMS文件修复中支持文件版本的方法
    • WO2008084348A1
    • 2008-07-17
    • PCT/IB2007/055094
    • 2007-12-13
    • NOKIA CORPORATIONNOKIA, INC.BOUAZIZI, Imed
    • BOUAZIZI, Imed
    • H04H20/57H04L29/08H04Q7/22
    • H04L12/189H04L12/1863
    • A system and method are provided for changing the file repair functionality associated with MBMS systems in order to allow for the unambiguous identification of a file version in the file repair request. A file repair request is extended by information that can globally, and independently of the file download session, identify the version of a file. According to one embodiment of the present invention, a last modification date of a file can be utilized in conjunction with the file's URL to identify the file and its version. According to another embodiment of the present invention, a hash value of the file can be utilized in conjunction with the file's URL to identify the file and its version.
    • 提供了一种用于改变与MBMS系统相关联的文件修复功能的系统和方法,以便允许文件修复请求中的文件版本的明确识别。 文件修复请求通过可以全局而且与文件下载会话无关的信息进行扩展,以识别文件的版本。 根据本发明的一个实施例,文件的最后修改日期可以与文件的URL一起使用以识别文件及其版本。 根据本发明的另一个实施例,文件的散列值可以与文件的URL一起使用以识别文件及其版本。