公开(公告)号：US07590922B2

公开(公告)日：2009-09-15

申请号：US10903489

申请日：2004-07-30

Applicant: Ramakrishna Vedantham ,  David Leon ,  Igor Curcio ,  Rod Walsh

Inventor： Ramakrishna Vedantham ,  David Leon ,  Igor Curcio ,  Rod Walsh

IPC: H03M13/00

CPC classification number: H04L1/1819 ,  H04L1/1628 ,  H04L1/1816 ,  H04L69/164 ,  H04L2001/0093

Abstract: This invention relates to a method, system, transmitter, network element, receiver and software application for a system capable of point-to-multipoint transmission, where one or more data packets are transmitted from a transmitter to one or more receivers, where at least at one specific receiver of said receivers, a reception of repair data packets is required, where repair information is signaled to a repair server in order to trigger a transmission of the repair data packets, and where the repair information comprises information related to the number of transmitted data packets correctly received at the specific receiver. The system may for instance be the 3GPP Multimedia Broadcast Multicast System, the transmission of data packets may for instance be controlled by the File Delivery Over Unidirectional Transport protocol and the signaling of the repair information may for instance be controlled by the Hypertext Transfer Protocol.

Abstract translation: 本发明涉及能够进行点对多点传输的系统的方法，系统，发射机，网络单元，接收机和软件应用，其中一个或多个数据分组从发射机发射到一个或多个接收机，其中至少 在所述接收机的一个特定接收机处，需要修复数据分组的接收，其中修复信息被发送到维修服务器以触发修复数据分组的传输，并且其中修复信息包括与 在特定接收机处正确接收到的数据分组。 该系统可以例如是3GPP多媒体广播多播系统，数据分组的传输可以例如由文件传送单向传输协议控制，并且修复信息的信令例如可以由超文本传输​​协议来控制。

公开(公告)号：US07477743B2

公开(公告)日：2009-01-13

申请号：US10072147

申请日：2002-02-07

Applicant: Tomi Hakkarainen ,  Rod Walsh

Inventor： Tomi Hakkarainen ,  Rod Walsh

IPC: H04L9/00

CPC classification number: H04H60/23 ,  H04H60/91 ,  H04L9/0891 ,  H04L9/3226 ,  H04L2209/60 ,  H04L2209/80 ,  H04N7/162 ,  H04N7/1675 ,  H04N7/17318 ,  H04N21/25816 ,  H04N21/26613 ,  H04N21/6181 ,  H04N21/63345 ,  H04N2007/1739

Abstract: A hybrid method for a service provider to transmit decryption information (e.g., algorithms, parameters, keys) to clients in a secure manner and at low cost for use in decrypting broadcast services. The service provider uses a bi-directional channel (e.g., a GPRS channel) to receive service requests, authenticate clients and transmit currently valid decryption information (and, optionally, future decryption information) necessary to decrypt a broadcast service. The service provider transmits the encrypted service on a unidirectional channel (e.g., a DVB-T channel). The service provider preferably also changes the encryption of the service with time, and, as it does, transmits updated decryption information to its clients on the unidirectional channel. The updated decryption information is encrypted using the currently valid decryption information and may also include future decryption information and synchronization information.

Abstract translation: 一种用于服务提供商以安全的方式以低成本向解密信息（例如算法，参数，密钥）传送解密信息（用于解密广播服务）的混合方法。 服务提供商使用双向信道（例如，GPRS信道）来接收服务请求，认证客户端并发送解密广播服务所必需的当前有效的解密信息（以及可选地，未来的解密信息）。 服务提供商在单向信道（例如，DVB-T信道）上发送加密的业务。 服务提供者还优选地随时间改变服务的加密，并且如此，在单向信道上向其客户端发送更新的解密信息。 使用当前有效的解密信息来加密更新的解密信息，还可以包括将来的解密信息和同步信息。

公开(公告)号：US20080320171A1

公开(公告)日：2008-12-25

申请号：US12194110

申请日：2008-08-19

Applicant: Rod Walsh ,  Juha-Pekka Luoma ,  Anne Saaranen

Inventor： Rod Walsh ,  Juha-Pekka Luoma ,  Anne Saaranen

IPC: G06F15/16

CPC classification number: H04L69/04 ,  H04L12/1868 ,  H04L12/1877 ,  H04L12/189 ,  H04L69/22

Abstract: A compression context for a plurality of packets is established with a receiving device. Each of these packets is associated with one or more reliable multicast protocols, such as the Layered Coding Transform (LCT) protocol, the Asynchronous Layered Coding (ALC) protocol, the FLUTE protocol, the MUPPET protocol, and the NACK-Oriented Reliable Multicast (NORM) protocol. Upon establishment of the compression context, a compressed packet is generated for one of the plurality of packets and transmitted to the receiving device. The compressed packet has a reduced number of bits in its header. Upon receipt, the receiving device decompresses the compressed packet based on the compression context.

Abstract translation: 用接收设备建立多个分组的压缩上下文。 这些分组中的每一个与一个或多个可靠的多播协议相关联，例如分层编码变换（LCT）协议，异步分层编码（ALC）协议，FLUTE协议，MUPPET协议和面向NACK的可靠多播（ NORM）协议。 在建立压缩上下文时，为多个分组之一生成压缩分组，并发送给接收设备。 压缩包在其头部中具有减少的比特数。 在接收到接收设备时，基于压缩上下文来解压缩压缩的分组。

公开(公告)号：US20080065945A1

公开(公告)日：2008-03-13

申请号：US11982052

申请日：2007-10-31

Applicant: Igor Curcio ,  Rod Walsh ,  Guruprasad Balasubramanyam ,  Juha-Pekka Luoma

Inventor： Igor Curcio ,  Rod Walsh ,  Guruprasad Balasubramanyam ,  Juha-Pekka Luoma

IPC: H04L1/08 ,  G06F11/14

CPC classification number: H04L1/1809 ,  H04L1/1854 ,  H04L12/66 ,  H04L2001/0093

Abstract: The invention relates to a method for data repair in a system capable of one-to-many transmission. The method comprises transmitting data from a sender to at least one receiver and provides for various sender driven or receiver driven repair methods of missing data.

Abstract translation: 本发明涉及能够进行一对多传输的系统中的数据修复方法。 该方法包括将数据从发送器发送到至少一个接收器，并提供丢失数据的各种发送器驱动或接收器驱动的修复方法。

公开(公告)号：US20060166653A1

公开(公告)日：2006-07-27

申请号：US10528403

申请日：2002-09-20

Applicant: Lin Xu ,  Juha-Pekka Luoma ,  Sinikka Sarkkinen ,  Rod Walsh

Inventor： Lin Xu ,  Juha-Pekka Luoma ,  Sinikka Sarkkinen ,  Rod Walsh

IPC: H04Q7/22 ,  H04M1/663

CPC classification number: H04W4/06 ,  H04W4/08 ,  H04W60/00 ,  H04W72/005

Abstract: The invention relates to a mechanism for performing multicast transmission in a cellular network. In order to enable establishment of resources only in cells containing members of the multicast group and to avoid congestion on the uplink channel, a multicast service notification is transmitted to mobile stations, thereby informing members of the multicast group of an upcoming multicast session. The moment for a response to said multicast service notification is selected in the mobile stations and a presence report is sent from at least one of said mobile stations at the response moment of said at least one mobile station. The presence report or reports are received within a radio access network, and radio resources are established for multicast transmission in a cell of the cellular network when the presence report(s) received in said cell meet(s) predetermined criteria.

公开(公告)号：US06965770B2

公开(公告)日：2005-11-15

申请号：US09950577

申请日：2001-09-13

Applicant: Rod Walsh ,  Juha Häkkinen ,  Matti Hämäläinen ,  Mauri Väänänen ,  Ari Tähti ,  Kristiina Nevakivi

Inventor： Rod Walsh ,  Juha Häkkinen ,  Matti Hämäläinen ,  Mauri Väänänen ,  Ari Tähti ,  Kristiina Nevakivi

IPC: G06F17/30 ,  G11B27/10 ,  G11B27/34 ,  H04L29/06 ,  H04L29/08 ,  H04N7/16 ,  H04N7/173 ,  H04N21/258 ,  H04N21/2668 ,  H04N21/41 ,  H04N21/4227 ,  H04N21/4363 ,  H04N21/482 ,  H04Q7/20

CPC classification number: G11B27/102 ,  G06F17/30053 ,  G06F17/30749 ,  G06F17/30772 ,  G11B27/34 ,  G11B2220/61 ,  H04L29/06027 ,  H04L65/4084 ,  H04L67/04 ,  H04L67/10 ,  H04L69/329 ,  H04N7/163 ,  H04N7/17318 ,  H04N21/25891 ,  H04N21/2668 ,  H04N21/4126 ,  H04N21/4227 ,  H04N21/43637 ,  H04N21/482 ,  H04N21/4825 ,  H04N21/4826

Abstract: A method and system for establishing a dynamic content delivery system (DCDS) is disclosed. In one embodiment, a Bluetooth enabled mobile communications unit is used to communicate with a server in order to make a request for the delivery of specific content, such as a song, video, or the like, to a separate output device, such as a loudspeaker, a display screen, or the like. In another embodiment the content is delivered back to the requesting mobile communications device. In some embodiments, hybrid networks may be used for requesting and delivering content. A narrowband, bi-directional, unicast network may be used for requesting content and acknowledging the requests, while a broadband, unidirectional, multicast network may be used to deliver the requested content to the requesting client device. The order in which the content is delivered may be modified by user requests according to a predetermined algorithm.

Abstract translation: 公开了一种用于建立动态内容传送系统（DCDS）的方法和系统。 在一个实施例中，使用蓝牙功能的移动通信单元与服务器进行通信，以便向诸如歌曲，视频等的特定内容的传送请求发送到单独的输出设备，诸如 扬声器，显示屏等。 在另一个实施例中，将内容传送回请求移动通信设备。 在一些实施例中，混合网络可以用于请求和传递内容。 可以使用窄带双向单播网络来请求内容并确认请求，而可以使用宽带单向组播网络来将请求的内容递送到请求的客户端设备。 可以根据预定算法，通过用户请求来修改内容的发送顺序。

公开(公告)号：US20050160184A1

公开(公告)日：2005-07-21

申请号：US10739066

申请日：2003-12-19

Applicant: Rod Walsh ,  Juha-Pekka Luoma ,  Anne Saaranen

Inventor： Rod Walsh ,  Juha-Pekka Luoma ,  Anne Saaranen

IPC: G06F15/16 ,  H04L12/18

CPC classification number: H04L69/04 ,  H04L12/1868 ,  H04L12/1877 ,  H04L12/189 ,  H04L69/22

Abstract: A compression context for a plurality of packets is established with a receiving device. Each of these packets is associated with one or more reliable multicast protocols, such as the Layered Coding Transform (LCT) protocol, the Asynchronous Layered Coding (ALC) protocol, the FLUTE protocol, the MUPPET protocol, and the NACK-Oriented Reliable Multicast (NORM) protocol. Upon establishment of the compression context, a compressed packet is generated for one of the plurality of packets and transmitted to the receiving device. The compressed packet has a reduced number of bits in its header. Upon receipt, the receiving device decompresses the compressed packet based on the compression context.

Abstract translation: 用接收设备建立多个分组的压缩上下文。 这些分组中的每一个与一个或多个可靠的多播协议相关联，例如分层编码变换（LCT）协议，异步分层编码（ALC）协议，FLUTE协议，MUPPET协议和面向NACK的可靠多播（ NORM）协议。 在建立压缩上下文时，为多个分组之一生成压缩分组，并发送给接收设备。 压缩包在其头部中具有减少的比特数。 在接收到接收设备时，基于压缩上下文来解压缩压缩的分组。