公开(公告)号：EP1801979B1

公开(公告)日：2010-06-09

申请号：EP05270098.6

申请日：2005-12-22

申请人： Microsoft Corporation

发明人： Gkantsidis, Christos ,  Miller, John ,  Costa, Manuel ,  Rodriguez, Pablo Rodriguez ,  Ranson, Stuart

IPC分类号： H03M13/11 ,  H04L12/18

CPC分类号： H04L67/104 ,  H03M13/3761 ,  H04L67/1076 ,  H04L67/108

公开(公告)号：EP2179567A2

公开(公告)日：2010-04-28

申请号：EP08798219.5

申请日：2008-08-20

申请人： NTT DoCoMo, Inc.

发明人： KOZAT, Ulas, C. ,  DEMIRCIN, Mehmet, U. ,  HARMANCI, Oztan ,  KANUMURI, Sandeep

IPC分类号： H04L29/06

CPC分类号： H04L67/104 ,  H04L65/4084 ,  H04L67/1063 ,  H04L67/1076 ,  H04L67/108 ,  H04L67/1091 ,  H04L67/28 ,  H04L67/2852 ,  Y10S707/967

摘要： A system, method and apparatus are disclosed herein for media streaming. In one embodiment, the system comprises one or more media servers to serve media content and a plurality of peers communicably coupled to one or more other peers of the plurality of peers and at least one of the one or more media servers to receive segments of media content, where at least one of peers allocates a set of resources for serving the segments of media content including cache memory to store the segments and media files and uplink bandwidth to send the segments of media content to the one or more peers to which the one peer is communicably coupled. The system also includes a first control server to track media content demand and the allocated resources of the plurality of peers to determine which peer should cache which segment of the media file and to return peer location information specifying the one or more peer locations from which each peer is to receive each segment of each media content requested. The control server is operable to send the location information to each peer. In one embodiment, the one control server is also operable to calculate a utility of each caching option and enforce it by sending triggers to the peers to initiate the caching at those peers.

公开(公告)号：EP2169910A1

公开(公告)日：2010-03-31

申请号：EP09164853.5

申请日：2009-07-08

申请人： Fujitsu Limited

发明人： Sakakihara, Hironori ,  Hasegawa, Eiji ,  Honda, Fumio

IPC分类号： H04L29/08 ,  H04L29/06

CPC分类号： H04L67/104 ,  H04L67/1076

摘要： A technique for maintaining availability of content for distribution in a P2P system. An information processor (2) is connectable to a communication system (1) containing a plurality of terminal devices (3a, 3b, 3c). The information processor (2) receives content holding terminal information for identifying a terminal device holding a specific item of content, calculates a content holding terminal number corresponding to the number of terminal devices holding the content on the basis of the received content holding terminal information, holds a determination reference serving as a reference for determining whether the content holding terminal number is below a predetermined threshold value, determines on the basis of the content holding terminal number calculated by the terminal number calculator and the determination reference whether the content holding terminal number concerned is below the predetermined threshold value, and transmits an extinction preventing instruction for making the terminal device holding the content concerned execute processing for preventing extinction of the content when determining that the content holding terminal number is below the predetermined threshold value.

摘要翻译： 一种用于维护P2P系统中分发内容可用性的技术。 信息处理器（2）可连接到包含多个终端设备（3a，3b，3c）的通信系统（1）。 信息处理器（2）接收用于识别保持特定内容的终端装置的内容保持终端信息，基于接收到的内容保持终端信息，计算与保持内容的终端装置的数量相对应的内容保持终端号码， 保存作为用于确定内容保持终端号码是否低于预定阈值的参考的确定参考，基于由终端号码计算器计算的内容保持终端号码和确定参考来确定所涉及的内容保持终端号码 并且当确定内容保持终端数量低于预定阈值时，发送用于使保持有关内容的终端设备执行用于防止内容消失的处理的防止消除指令。

公开(公告)号：EP2091272A2

公开(公告)日：2009-08-19

申请号：EP09152040.3

申请日：2009-02-04

申请人： Huawei Technologies Co., Ltd.

发明人： Shi, Guangyu ,  Gong, Hao ,  Chen, Jian

IPC分类号： H04W4/00 ,  H04L29/06

CPC分类号： H04L67/16 ,  H04L61/1582 ,  H04L61/1588 ,  H04L67/104 ,  H04L67/1046 ,  H04L67/1065 ,  H04L67/1076 ,  H04W8/08 ,  H04W40/20

摘要： The embodiment of the present invention provides a method for establishing a route, which includes searching a target node by a node from a first level node group according to first level route information, returning to query a result or data saved by the target node if the target node is found, otherwise executing the following step; searching a target node by the node from a higher level node group according to higher level route information, returning to query a result or the data saved by the target node if the target node is found, otherwise repeating the step. Through the hierarchical communication system, most of the flows of daily service operations in the communication network are limited within a small region, thereby preventing from excessively occupying the band width of a backbone network being originally not wide enough.

摘要翻译： 本发明的实施例提供了一种建立路由的方法，其包括根据第一级路由信息从第一级节点组中的节点搜索目标节点，返回查询结果或由目标节点保存的数据，如果 找到目标节点，否则执行以下步骤; 根据较高级别的路由信息​​从上级节点组中的节点搜索目标节点，如果找到目标节点，返回查询结果或目标节点保存的数据，否则重复该步骤。 通过分级通信系统，通信网络中日常业务运行的大部分流量在小区域内受到限制，从而防止过度占据骨干网络的带宽原本不够宽。

公开(公告)号：EP2051443A3

公开(公告)日：2009-05-27

申请号：EP08105319.1

申请日：2008-09-11

申请人： Siemens Aktiengesellschaft

发明人： Bartlang, Udo ,  Öztunali, Sebnem

IPC分类号： H04L12/24 ,  H04L29/08 ,  H04L12/427 ,  H04L12/40

CPC分类号： H04L41/0604 ,  H04L12/40176 ,  H04L12/427 ,  H04L67/104 ,  H04L67/1076 ,  H04L67/1095 ,  Y04S40/166

摘要： Die Erfindung betrifft ein Verfahren zum Betrieb eines dezentralen Kommunikationsnetzes, wobei die in dem Kommunikationsnetz verwalteten Ressourcen in Abhängigkeit von ihrem Dateninhalt bzw. ihren Zugriffsrechten entsprechenden Kategorien zugeordnet werden. Diese Kategorien werden beim Publizieren bzw. beim Zugriff auf eine Ressource berücksichtigt. Erfindungsgemäß werden somit den Ressourcen semantische Informationen zugewiesen, mit denen eine Optimierung des verteilten Zugriffsverhaltens in dem Kommunikationsnetz erreicht werden kann. Insbesondere kann dynamisch in Abhängigkeit von Eigenschaften der Ressource eine geeignete Dienstprimitive bezüglich Replikations-, Lese- und Schreiboperationen für die Ressource ausgewählt werden. Somit wird es möglich, dynamisch ein optimales Systemverhalten des Kommunikationsnetzes pro Ressource unter Wahrung aller Konsistenzbedingungen zu schaffen. Ein besonderer Anwendungsbereich des erfindungsgemäßen Verfahrens ist der Einsatz in Kommunikationsnetzen für industrielle Anwendungen, beispielsweise in Spannungsverteilsystemen, in Energieerzeugungssystemen bzw. Automatisierungsanlagen.

公开(公告)号：EP2056572A1

公开(公告)日：2009-05-06

申请号：EP07301517.4

申请日：2007-10-31

申请人： Thomson Licensing

发明人： Boudani, Ali ,  Champel, Mary-Luc ,  Diot, Christophe

IPC分类号： H04L29/08

CPC分类号： H04L67/06 ,  H04L65/4084 ,  H04L67/104 ,  H04L67/1072 ,  H04L67/1076 ,  H04L67/1078 ,  H04L67/108 ,  H04L67/2842

摘要： The invention concerns a method of distributing content in a communication network comprising a plurality of interconnected communication devices, said content being divided in a plurality of symbols, comprising a step in which the different symbols of content are distributed over the communication devices, said method being characterized in that it comprises the following steps:
• requesting, by a communication device D1, a list L1 of communication devices that contain symbols of content that said communication device D1 has not received yet;
• receiving, at said communication device D1, the list L1 of communication devices that contain symbols of content that said communication device D1 has not received yet;
• requesting, by said communication device D1, to communication devices of said list L1 of communication devices, missing symbols of content (S1, S2, ..., SN) ; and
• receiving, at said communication device D1, said missing symbols of content (S1, S2, ..., SN).
The invention also concerns a communication device.

摘要翻译： 本发明涉及在通信网络包括互连的通信设备的。多个分发内容的方法，所述内容被划分成码元的复数，包括其中的内容的不同的符号被分布在通信设备的步骤，所述方法的 其特征在于，这样做是包括以下步骤：¢€请求，通过通信设备D1，通信设备列表L1确实包含的内容，所述通信设备D1尚未收到符号; €¢接收，在所述通信设备D1，通信设备的列表L1确实包含的内容，所述通信设备D1还没有被接收到的符号; ¢€请求，通过所述通信装置D1，向通信设备的L1所述列表的通信装置，缺失的内容（S1，S2，...，SN）符号; 和€¢接收，在所述通信设备D1，所述丢失的内容的符号（S1，S2，...，SN）。 因此本发明涉及一种通信设备。

公开(公告)号：EP2051443A2

公开(公告)日：2009-04-22

申请号：EP08105319.1

申请日：2008-09-11

申请人： Siemens Aktiengesellschaft

发明人： Bartlang, Udo ,  Öztunali, Sebnem

IPC分类号： H04L12/24 ,  H04L29/08 ,  H04L12/427 ,  H04L12/40

CPC分类号： H04L41/0604 ,  H04L12/40176 ,  H04L12/427 ,  H04L67/104 ,  H04L67/1076 ,  H04L67/1095 ,  Y04S40/166

摘要： Die Erfindung betrifft ein Verfahren zum Betrieb eines dezentralen Kommunikationsnetzes, wobei die in dem Kommunikationsnetz verwalteten Ressourcen in Abhängigkeit von ihrem Dateninhalt bzw. ihren Zugriffsrechten entsprechenden Kategorien zugeordnet werden. Diese Kategorien werden beim Publizieren bzw. beim Zugriff auf eine Ressource berücksichtigt. Erfindungsgemäß werden somit den Ressourcen semantische Informationen zugewiesen, mit denen eine Optimierung des verteilten Zugriffsverhaltens in dem Kommunikationsnetz erreicht werden kann. Insbesondere kann dynamisch in Abhängigkeit von Eigenschaften der Ressource eine geeignete Dienstprimitive bezüglich Replikations-, Lese- und Schreiboperationen für die Ressource ausgewählt werden. Somit wird es möglich, dynamisch ein optimales Systemverhalten des Kommunikationsnetzes pro Ressource unter Wahrung aller Konsistenzbedingungen zu schaffen. Ein besonderer Anwendungsbereich des erfindungsgemäßen Verfahrens ist der Einsatz in Kommunikationsnetzen für industrielle Anwendungen, beispielsweise in Spannungsverteilsystemen, in Energieerzeugungssystemen bzw. Automatisierungsanlagen.

摘要翻译： 该方法通过轮毂的一部分涉及到发布资源的通信网络英寸 这些资源通过查询集线器访问。 资源被分配的一个或多个类别取决于它们的数据内容或者它们的访问。 respectivement资源或资源访问respectivement的出版发生取决于respectivement资源的类别。

公开(公告)号：EP1751947B1

公开(公告)日：2009-01-28

申请号：EP04739478.8

申请日：2004-05-31

申请人： Telecom Italia S.p.A.

发明人： AIELLO, Alessandro Michele,2Telecom Italia S.p.A. ,  VALETTO, Giuseppe, Telecom Italia S.p.A.

IPC分类号： H04L29/06

CPC分类号： H04L67/104 ,  H04L67/1076 ,  H04L67/2842 ,  H04L69/329

公开(公告)号：EP1829336A1

公开(公告)日：2007-09-05

申请号：EP05815918.7

申请日：2005-10-27

申请人： FRANCE TELECOM

发明人： SOULET, Serge

IPC分类号： H04L29/08

CPC分类号： H04L67/104 ,  H04L67/06 ,  H04L67/1076 ,  H04L67/2842 ,  H04L69/329

摘要： The invention relates to a system and method for transmitting a data package (1) to a plurality of computers (7a to 11c) distributed through a set of distinct local networks (7, 9, 11), wherein the inventive method consists in, upon the request of the determined computer (7a) of a determined local network (7) for downloading the data package (1), a control server (3) communicates to said determined computer (7a) the name of a depository computer for said data package, which belongs to the determined local network (7) and previously downloaded said data package (1) or the control server (3) communicates to said determined computer (7a) the address of a central storage (17) containing said data package (1) in the case when the determined local network (7) does not comprise another computer which previously downloaded said data package (1)

公开(公告)号：EP1752002A1

公开(公告)日：2007-02-14

申请号：EP04795288.2

申请日：2004-10-18

申请人： Wurld Media, Inc.

发明人： ADDESSI, Vincent ,  ADDESSI, Jamie ,  BICK, Chris ,  HAUSAM, Ken ,  FEATHERS, Kirk ,  KERBER, Gregory

IPC分类号： H04Q7/24

CPC分类号： H04L63/02 ,  H04L63/0428 ,  H04L63/08 ,  H04L63/10 ,  H04L63/12 ,  H04L67/06 ,  H04L67/104 ,  H04L67/1044 ,  H04L67/1046 ,  H04L67/1051 ,  H04L67/1076 ,  H04L67/322 ,  H04W40/02 ,  H04W84/18

摘要： Dynamic Connection Structures (DCS) utilizing many topologies and routing means and methods for transferring data files to pluralities of computers or nodes on a network are provided. Many types of meshes, graphs, rings, and ordered binary tree algorithms are provided which are configured to adapt and change their topologies and routing schemes in peer-to-peer architectures, depending upon a number of significant attributes of the nodes, including their relative positions, capacities, content status, and their respective relationships to other nodes in the DCS. At least one traffic cop node is arranged and enabled for overseeing, adapting and maintaining the topology of the DCS. Advantageously, nodes of the invention are adapted for simultaneously sending and receiving chunks of a file set transmitted over the DCS. Additions and removals of nodes can be achieved at any time by contacting affected nodes, and modifying their connections to reflect the changes determined by the algorithm. Thus, nodes of the invention are adapted for efficiently changing their topologies and for routing content between and among the nodes of the DCS.