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    • 1. 发明申请
    • METHOD AND ARRANGEMENT FOR IMPROVED CHANNEL SWITCHING
    • 改进频道切换的方法和布置
    • WO2008150204A1
    • 2008-12-11
    • PCT/SE2007/050397
    • 2007-06-04
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)MAS IVARS, Ignacio
    • MAS IVARS, Ignacio
    • H04N7/173H04L29/08
    • H04N7/17318H04N21/25841H04N21/4381H04N21/4384H04N21/44008H04N21/4524H04N21/64322
    • In a method of providing a channel/client status register to enable improved channel switching in an Internet Protocol network with a plurality of client nodes each capable of receiving video sessions over a plurality of channels from at least one video provider system, initially arranging S1 said plurality client 5 nodes into an associated group. A first client node, upon switching to or joining a new channel, transmitting S2 a channel update message to said associated group, said channel update message comprising an identity of said first client node, an identity of said new channel and a topological indication for said channel. Subsequently providing and updating S3 a respective channel/client 10 status register in each of said plurality of client nodes based on said transmitted channel update message, thereby enabling identification of what channels the client nodes in said associated group are associated with or viewing.
    • 在提供信道/客户端状态寄存器的方法中,能够利用具有多个客户端节点的互联网协议网络中的改进的信道切换,每个客户端节点能够从至少一个视频提供商系统在多个信道上接收视频会话,最初将S1 将多个客户端5个节点转换成关联组。 第一客户节点,在切换到或加入新信道时,向所述相关组发送信道更新消息S2,所述信道更新消息包括所述第一客户端节点的身份,所述新信道的标识和所述新信道的拓扑指示 渠道。 随后,基于所述所发送的信道更新消息,在所述多个客户端节点的每一个中提供和更新S3相应的信道/客户机10状态寄存器,由此能够识别所述关联组中的客户端节点与哪个信道相关联或查看。
    • 5. 发明申请
    • MULTICAST DELIVERY
    • 多媒体传送
    • WO2007142573A8
    • 2009-01-15
    • PCT/SE2007000534
    • 2007-06-01
    • ERICSSON TELEFON AB L MCEDERVALL MATSDEKKER RENEHALEN JOACIMMAS IVARS IGNACIOPERSSON FREDRIK F
    • CEDERVALL MATSDEKKER RENEHALEN JOACIMMAS IVARS IGNACIOPERSSON FREDRIK F
    • H04L29/06H04N7/173
    • H04L67/06H04L12/18H04L67/28H04L67/2842H04L67/325H04N21/26616H04N21/2665H04N21/2668H04N21/6125H04N21/6405H04N21/6408
    • A method and nodes in a communication network (305) for controlling multi-cast delivery of files, wherein the multi-cast delivery is adapted to reduce the amount of required uni-cast file deliveries in the communication network. A browser of an IPTV Terminating Function (ITF; 310a, b, c), requiring a file interrogates a cache (316) of the IFT for the file content before a uni-cast request for file delivery is sent to an Application Service Platform (ASP;300).. The files stored in the cache have been previously delivered to the IFT via the proposed multi-cast mechanism. If the file content is not stored in the cache, a uni-cast request is sent to the ASP. Each uni-cast request is also forwarded to a Multi-Cast Controller (MCC;320), which determines whether the requested file should be sent also to a plurality of additional IFTs on a multi-cast channel. At each IFT, listening to the multi-cast channel, the received content can be handled selectively -according to a filtering mechanism, and a received file may, e.g. be stored in the cache for later retrieval.
    • 用于控制文件的多播传送的通信网络(305)中的方法和节点,其中所述多播传送适于减少所述通信网络中所需的单播文件传送量。 IPTV终端功能(ITF; 310a,b,c)的浏览器要求文件在文件传送的单播请求发送到应用服务平台之前询问文件内容的IFT的高速缓存(316) ASP; 300)。存储在缓存中的文件以前已经通过提出的多播机制传送到IFT。 如果文件内容未存储在缓存中,则会将单播请求发送到ASP。 每个单播请求也被转发给多播控制器(MCC; 320),多控制控制器(MCC; 320)确定所请求的文件是否也应发送到多播信道上的多个附加IFT。 在每个IFT处,监听多播信道,可以根据过滤机制选择性地处理所接收的内容,并且所接收的文件可以例如被接收。 存储在缓存中以供以后检索。
    • 6. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING SECURE LINKING TO A USER IDENTITY IN A DIGITAL RIGHTS MANAGEMENT SYSTEM
    • 用于在数字权限管理系统中向用户身份提供安全链接的方法和设备
    • WO2009053818A3
    • 2009-07-09
    • PCT/IB2008002822
    • 2008-10-22
    • ERICSSON TELEFON AB L MCHENG YIHARTUNG FRANKMITRA NILOMAS IVARS IGNACIO
    • CHENG YIHARTUNG FRANKMITRA NILOMAS IVARS IGNACIO
    • H04L29/06
    • H04L63/0853H04L63/0823H04L63/30H04L2463/101H04L2463/103H04W12/04
    • Disclosed is a DRM device and method for providing secure linking to a user identity. A first request is sent to a subscriber identity module. A message is received from the subscriber identity module via a secure authenticated channel. The message comprises at least a a master key identifier, a random number, and a derived key. In response to the message, a second request is sent to a DRM server. The second request comprises at least a master key identifier, the device identifier, and a random number. Also disclosed is a DRM server and method for providing secure linking to a user identity. A first request is received from a DRM device. The first request comprises at least master key identifier, a device identifier, and a random number. The DRM device is authenticated. A second request for an application specific key is sent to a trusted key management server. The second request comprises at least a master key identifier. At least a key is received from the trusted key management server. A derived key is determined from the key received from the trusted key management server based at least on the device identifier and the random number. A challenge/response scheme is used to determine whether the derived key of the DRM server matches a derived key of the DRM device.
    • 公开了一种用于提供到用户身份的安全链接的DRM设备和方法。 第一个请求被发送到用户身份模块。 通过安全认证信道从订户身份模块接收消息。 该消息至少包括主密钥标识符,随机数和派生密钥。 响应该消息,第二请求被发送到DRM服务器。 第二请求至少包括主密钥标识符,设备标识符和随机数。 还公开了用于提供到用户身份的安全链接的DRM服务器和方法。 从DRM设备接收到第一请求。 第一请求至少包括主密钥标识符,设备标识符和随机数。 DRM设备已通过身份验证。 对特定于应用程序的密钥的第二次请求被发送到可信密钥管理服务器。 第二请求至少包括主密钥标识符。 至少从可信密钥管理服务器接收密钥。 根据从可信密钥管理服务器接收的密钥至少基于设备标识符和随机数确定派生密钥。 质询/响应方案用于确定DRM服务器的派生密钥是否与DRM设备的派生密钥相匹配。
    • 7. 发明申请
    • MULTICAST DELIVER
    • 多媒体传送
    • WO2007142573A1
    • 2007-12-13
    • PCT/SE2007/000534
    • 2007-06-01
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)CEDERVALL, MatsDEKKER, RenéHALEN, JoacimMAS IVARS, IgnacioPERSSON, Fredrik, F.
    • CEDERVALL, MatsDEKKER, RenéHALEN, JoacimMAS IVARS, IgnacioPERSSON, Fredrik, F.
    • H04L29/06H04N7/173
    • H04L67/06H04L12/18H04L67/28H04L67/2842H04L67/325H04N21/26616H04N21/2665H04N21/2668H04N21/6125H04N21/6405H04N21/6408
    • A method and nodes in a communication network (305) for controlling multi-cast delivery of files, wherein the multi-cast delivery is adapted to reduce the amount of required uni-cast file deliveries in the communication network. A browser of an IPTV Terminating Function (ITF; 310a, b, c), requiring a file interrogates a cache (316) of the IFT for the file content before a uni-cast request for file delivery is sent to an Application Service Platform (ASP;300).. The files stored in the cache have been previously delivered to the IFT via the proposed multi-cast mechanism. If the file content is not stored in the cache, a uni-cast request is sent to the ASP. Each uni-cast request is also forwarded to a Multi-Cast Controller (MCC;320), which determines whether the requested file should be sent also to a plurality of additional IFTs on a multi-cast channel. At each IFT, listening to the multi-cast channel, the received content can be handled selectively -according to a filtering mechanism, and a received file may, e.g. be stored in the cache for later retrieval.
    • 用于控制文件的多播传送的通信网络(305)中的方法和节点,其中所述多播传送适于减少所述通信网络中所需的单播文件传送量。 IPTV终端功能(ITF; 310a,b,c)的浏览器要求文件在文件传送的单播请求发送到应用服务平台之前询问文件内容的IFT的高速缓存(316) ASP; 300)。存储在缓存中的文件以前已经通过提出的多播机制传送到IFT。 如果文件内容未存储在缓存中,则会将单播请求发送到ASP。 每个单播请求也被转发给多播控制器(MCC; 320),多控制控制器(MCC; 320)确定所请求的文件是否也应发送到多播信道上的多个附加IFT。 在每个IFT处,监听多播信道,可以根据过滤机制选择性地处理所接收的内容,并且所接收的文件可以例如被接收。 存储在缓存中以供以后检索。