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51. 发明授权

EP0855845B1 Interfacing device for ATM networks 失效
标题翻译：为ATM网络接口设备
公开(公告)号：EP0855845B1
公开(公告)日：2002-09-04
申请号：EP97122923.2
申请日：1997-12-28
申请人： Telecom Italia Lab S.p.A.
发明人： Benenti, Claudio , Cama, Alessandro , Cavallaro, Antonio , Destefanis, Paolo , Scoscina, Andrea
IPC分类号： H04Q11/04 , H04L12/52
CPC分类号： H04Q11/0478 , H04B7/18582 , H04L2012/563 , H04L2012/5651

52. 发明公开

EP1183794A1 SYSTEM AND METHOD FOR PROVIDING A SCALABLE ARCHITECTURE IN A TWO-WAY SATELLITE SYSTEM 有权
标题翻译：系统和方法用于实现可扩展的架构在双向卫星系统
公开(公告)号：EP1183794A1
公开(公告)日：2002-03-06
申请号：EP01930486.4
申请日：2001-04-12
申请人： Hughes Electronics Corporation
发明人： KELLY, Frank , KLOPER, Dave
IPC分类号： H04B7/185
CPC分类号： H01Q3/005 , H01Q1/1257 , H01Q3/08 , H04B7/18528 , H04B7/18582 , H04B7/18584 , H04B7/18597 , H04B7/2125
摘要： A two-way satellite communication system for providing a scalable architecture is disclosed. A plurality of transceivers (109) transmit signals over a plurality of return channels, wherein the plurality of return channels are partitioned into a plurality of return channel groups. A hub (113) communicates with the plurality of transceivers (109) via the plurality of return channel groups. The hub (113) is connected to a packet switched network (105). Each of the plurality of transceivers (109) performs a random weighted selection of a return channel group among the plurality of return channel groups.

53. 发明公开

EP1175065A2 Method and system for improving network performance enhancing proxy architecture with gateway redundancy 有权
标题翻译：一种用于通过用冗余网关增强的代理体系结构的手段提高网络性能的方法和系统
公开(公告)号：EP1175065A2
公开(公告)日：2002-01-23
申请号：EP01306269.0
申请日：2001-07-20
申请人： Hughes Electronics Corporation
发明人： Border, John , Butehorn, Matthew , Burrell, Ken
IPC分类号： H04L29/06
CPC分类号： H04L41/5022 , H04B7/18582 , H04B7/18584 , H04L12/2854 , H04L12/4604 , H04L12/66 , H04L29/06 , H04L29/08846 , H04L41/046 , H04L41/06 , H04L41/083 , H04L41/0873 , H04L41/0896 , H04L43/00 , H04L43/0811 , H04L45/00 , H04L45/22 , H04L45/24 , H04L45/28 , H04L45/30 , H04L45/306 , H04L45/308 , H04L47/10 , H04L47/14 , H04L47/193 , H04L47/2408 , H04L47/2433 , H04L47/2491 , H04L47/40 , H04L47/50 , H04L49/90 , H04L49/901 , H04L49/9042 , H04L49/9094 , H04L63/0281 , H04L63/0428 , H04L63/1466 , H04L67/2814 , H04L67/2833 , H04L67/2871 , H04L67/322 , H04L67/327 , H04L69/14 , H04L69/16 , H04L69/161 , H04L69/163 , H04L69/165 , H04L69/18 , H04L69/22 , H04L69/329 , H04W28/18 , H04W40/02 , Y02D70/1262 , Y02D70/30 , Y02D70/446
摘要： A communication gateway (1205) for providing redundant communication in a communication system having a remote platform (1203) is disclosed. The gateway (1205) includes a communication interface (1419) that receives a message from a host (110) over a connection according to a prescribed protocol. Additionally, the gateway (1205) includes a processor (1405) that is coupled to the communication interface (1419) and is configured to identify the message received as an unspoofed message, and configured to terminate, during a predetermined period, the connection based upon the identified message. The processor (1405) is configured to restart a spoofed connection with another host (110). The above arrangement has particular applicability to a bandwidth constrained communication system, such as a satellite network (100).
摘要翻译：具有代理体系结构的通信系统是游离缺失盘。该系统包括一个平台，做提供性能增强功能。该平台包括一欺骗设备的通信系统内的那样的路由信息时，欺骗设备接收从平台欺骗选择和欺骗参数和在一个或多个简档欺骗维持当前参数。的整个基于所述欺骗选择和/或欺骗轮廓的通信系统的信息的欺骗设备路由的数据包。欺骗设备可以的信息的路由期间从而补偿最大段大小不匹配。该补偿可以包括动态调整的数据段或禁用三次握手欺骗。上述布置特别适用于带宽受限的通信系统中，试验作为卫星网络。

54. 发明公开

EP1175051A2 Method and apparatus for buffer management 有权
标题翻译：用于缓冲区管理的方法和装置
公开(公告)号：EP1175051A2
公开(公告)日：2002-01-23
申请号：EP01306281.5
申请日：2001-07-20
申请人： Hughes Electronics Corporation
发明人： Border, John
IPC分类号： H04L12/56 , H04L29/06
CPC分类号： H04L41/5022 , H04B7/18582 , H04B7/18584 , H04L12/2854 , H04L12/4604 , H04L12/66 , H04L29/06 , H04L29/08846 , H04L41/046 , H04L41/06 , H04L41/083 , H04L41/0873 , H04L41/0896 , H04L43/00 , H04L43/0811 , H04L45/00 , H04L45/22 , H04L45/24 , H04L45/28 , H04L45/30 , H04L45/306 , H04L45/308 , H04L47/10 , H04L47/14 , H04L47/193 , H04L47/2408 , H04L47/2433 , H04L47/2491 , H04L47/40 , H04L47/50 , H04L49/90 , H04L49/901 , H04L49/9042 , H04L49/9094 , H04L63/0281 , H04L63/0428 , H04L63/1466 , H04L67/2814 , H04L67/2833 , H04L67/2871 , H04L67/322 , H04L67/327 , H04L69/14 , H04L69/16 , H04L69/161 , H04L69/163 , H04L69/165 , H04L69/18 , H04L69/22 , H04L69/329 , H04W28/18 , H04W40/02 , Y02D70/1262 , Y02D70/30 , Y02D70/446
摘要： A network apparatus for providing performance enhancements of a communication network (100) is disclosed. The network apparatus includes a plurality of communication interfaces (3019) that are configured to receive and to forward messages according to a prescribed protocol. The network apparatus also includes a plurality of modules (280, 282, 284, 286, 290, 292) configured to process the messages to effect performance enhancing functions. Further, the network apparatus includes a plurality of buffers (1201, 1203, 1205, 1207, 1209, 1211) that are configured to store the received messages and messages that are generated by one of the plurality of modules (280, 282, 284, 286, 290, 292). A portion of the plurality of buffers (1201, 1203, 1205, 1207, 1209, 1211) is shared by the plurality of modules (280, 282, 284, 286, 290, 292) based upon execution of a particular one of the performance enhancing functions. Each of the plurality of buffers (1201, 1203, 1205, 1207, 1209, 1211) has a data structure that includes an expandable header to accommodate different message types. The present invention has particular applicability to a bandwidth constrained system, such as satellite network (100).

55. 发明公开

EP1104640A1 METHOD AND EQUIPMENT FOR SETTING A TIMER 有权
标题翻译：方法和设备用于设置计时器
公开(公告)号：EP1104640A1
公开(公告)日：2001-06-06
申请号：EP99938414.2
申请日：1999-08-11
申请人： Nokia Networks Oy
发明人： TIIHONEN, Juha , PARKKARI, Tommi , TURUNEN, Jouni , PEISALO, Jorma , OHVO, Mikko
IPC分类号： H04Q7/38
CPC分类号： H04L29/06 , H04B7/18582 , H04L1/0001 , H04L1/1635 , H04L1/1809 , H04L1/188 , H04L69/28 , H04L69/324 , H04W24/00
摘要： A method of setting a timer associated with a protocol supportinga data link in a digital mobile communication system in a connection section. At least one party (MSC/IWF, MS) to the connectionsection monitors if the need to change the timer value has arisen. Should such a need be detected, the timer value (S) is set to avalue deviating from the initial value. The need to change the timer value (S) is also determined during the connection, such asin handover, for example by measuring the propagation delay associated with the connection section. This may be implemented by either of the parties to the connection transmitting to the other party a frame (F) which is selected/formed such that the party receiving the frame sends an acknowledgement (Ack) to the transmitting party. The party which transmitted the frame measures the timefrom the moment of transmission of the frame (F) to the arrival of the acknowledgement (Ack) and deduces the propagation delay (D)therefrom.

56. 发明公开

EP1089590A2 Virtual path asynchronous transfer mode switching in a processing satellite communications system 审中-公开
标题翻译：卫em on on on on s s s s s s s s s s s s s s s s s s s
公开(公告)号：EP1089590A2
公开(公告)日：2001-04-04
申请号：EP00119438.0
申请日：2000-09-14
申请人： TRW Inc.
发明人： Wright, David A. , Mann, Michael W. , Falk, Aaron D. , Williams, Rhon L.
IPC分类号： H04Q11/04
CPC分类号： H04L49/309 , H04B7/18582 , H04L49/203 , H04L2012/5608 , H04L2012/5624 , H04Q11/0478
摘要： The present invention provides a method (100) for virtual path switching of an ATM cell on a processing communications satellite. The method includes establishing a set of VPIs (104), where each VPI is associated with an output port on the satellite. The method also includes establishing a set of VCIs (106), and assigning one VPI and one VCI to an ATM cell (108). The ATM cell may then be transmitted to, and then received by an input port of the satellite (110). The method also includes determining an associated output port (114), and transferring the ATM cell to that output port (116). The VPI may be divided into a control subfield and a routing subfield, and the associated output port may be determined based on the routing subfield (808). The present invention may also provide for multicast switching (400). For example, the method may include providing at least one multicast routing table (404). The VPI assigned to the ATM cell may be associated with a multicast output port. Thus, the ATM cell may be transferred to that multicast output port (418) and then received at the associated multicast module (420). A multicast group of VPIs may then be determined (422, 424), and the ATM cell may be reproduced several times (426). The reproduced cells may be reassigned with a new VPI from the multicast group of VPIs (428), and the reproduced cells are once again presented to and received by an input port of the satellite (430).
摘要翻译：本发明提供一种用于处理通信卫星上的ATM信元的虚拟路径切换的方法（100）。该方法包括建立一组VPI（104），其中每个VPI与卫星上的输出端口相关联。该方法还包括建立一组VCI（106），并将一个VPI和一个VCI分配给ATM信元（108）。然后可以将ATM信元发送到卫星（110）的输入端口然后被卫星（110）的输入端口接收。该方法还包括确定相关联的输出端口（114），以及将ATM信元传送到该输出端口（116）。 VPI可以被划分为控制子字段和路由子字段，并且可以基于路由子字段来确定相关联的输出端口（808）。本发明还可以提供组播切换（400）。例如，该方法可以包括提供至少一个多播路由表（404）。分配给ATM信元的VPI可以与多播输出端口相关联。因此，ATM信元可以被传送到该多播输出端口（418），然后在相关联的组播模块（420）处接收。然后可以确定VPI的多播组（422,424），并且可以多次再现ATM信元（426）。再现的小区可以用来自VPI的多播组（428）的新VPI重新分配，再现的小区再次呈现给卫星的输入端口（430）并由卫星的输入端口接收。

57. 发明公开

EP1016237A4 ASYMMETRIC SATELLITE-BASED INTERNET SERVICE 审中-公开
标题翻译：不对称卫星互联网服务
公开(公告)号：EP1016237A4
公开(公告)日：2001-02-07
申请号：EP98953193
申请日：1998-09-22
申请人： ZAK SAT GENERAL TRADING CO WLL , EL RAFIE KHALID MONIR A
发明人： EL-RAFIE KHALID MONIR A
IPC分类号： H04B7/185 , H04L12/18 , H04L12/28 , H04L29/06 , H04L29/12 , H04N5/00 , H04N7/24 , H04L1/00
CPC分类号： H04L12/2856 , H04B7/18582 , H04L12/18 , H04L29/06 , H04L29/12009 , H04L61/00
摘要： An asymmetric access satellite-based system having improved features including multicasting through a networked operation center (4), master (5) and slave (2) cache facilities, roaming, and flexible IP packet routing (12, 13).

58. 发明公开

EP0820208A3 Packetized CDMA/TDM satellite communication system 失效
标题翻译： Paketiertes CDMA / TDM-Satellitkommunikationssystem
公开(公告)号：EP0820208A3
公开(公告)日：2000-09-13
申请号：EP97112052.2
申请日：1997-07-15
申请人： AT&T Corp.
发明人： Hsu, Liang , Rudrapatna, Ashok N. , Sherman, Matthew J. , Valdez, Gabriel
IPC分类号： H04Q11/04 , H04B7/185
CPC分类号： H04L49/3081 , H04B7/18515 , H04B7/18582 , H04L2012/5608 , H04Q11/0478
摘要： In a satellite communication system a CDMA uplink signal including user data is transmitted in a packetized manner, the packets are switched on board the satellite by a packet switch before its downlink delivery. The packet switch routes the packets to the appropriate one of several outgoing downlink beams based on address information included in the packet header. Time Division Multiplexing (i.e., TDM) is used for downlink transmission. This invention constitutes an efficient multi-user satellite based communication system.

59. 发明公开

EP1010322A1 SYSTEM FOR SELECTIVELY DOWNLOADING INFORMATION AT USER TERMINALS FROM THE INTERNET USING A SATELLITE BROADCAST SYSTEM 审中-公开
标题翻译：系统的开发BEUTZERTERMINALS下载选择性互联网信息使用卫星广播系统
公开(公告)号：EP1010322A1
公开(公告)日：2000-06-21
申请号：EP98943233.1
申请日：1998-08-19
申请人： Worldspace Management Corporation
发明人： CAMPANELLA, S., Joseph
IPC分类号： H04N7/10 , H04N7/14
CPC分类号： H04H20/74 , H04B7/18582 , H04H60/82 , H04H2201/19 , H04L12/2856
摘要： A satellite direct digital broadcast system is provided which broadcasts selected Internet information such as news reports, weather reports and stock market rates, along with radio programs. Broadcast channels comprise Internet information and a service control header to identify the type of Internet information contained therein. User terminals (22) are provided which comprise a radio broadcast receiver (2) to receive programs broadcast via satellite (20). Audio programs are played on a speaker connected to a radio broadcast receiver (21). The user terminals (22) also comprise a multimedia device such as a personal computer (29) connected to the receiver. The multimedia device is programmed to generate a computer display which prompts a user to select a topic of Internet information. The multimedia device stores received packets and selectively retrieves packets to generate displays such as Web pages using those packets which correspond to the topic of information selected by the user.

60. 发明公开

EP1002410A1 A DISTRIBUTED SYSTEM AND METHOD FOR PREFETCHING OBJECTS 无效
标题翻译：分布式的系统和方法适合对象初步BRING
公开(公告)号：EP1002410A1
公开(公告)日：2000-05-24
申请号：EP98939245.1
申请日：1998-08-05
申请人： Tachyon, Inc.
发明人： CARNEAL, Bruce, L. , FISH, Ram, A. , GURALNICK, Jeremy
IPC分类号： H04L29/08 , G06F17/30
CPC分类号： G06F17/30902 , H04B7/18582 , H04L29/06 , H04L67/02 , H04L67/28 , H04L67/2847 , H04L67/2876 , H04L67/289 , H04L69/329 , Y10S707/99931
摘要： In an internet access system which includes a satellite link, a distributed proxy server (68) is provided which reduces a delay associated with the retrieval of inline objects of web pages. The distributed proxy server (68) includes an access point component (70) and a satellite gateway component (72). The access point component (70) runs on the client (browser) side of the satellite link and communicates with web browsers (20A-20N). The satellite gateway component (72) runs on the internet side of the satellite link and communicates with web servers (26). As a web page is retrieved over the satellite link, the satellite gateway component (72) parses the base file component of the web page to identify any references to inline objects of the web page, and prefetches each such inline object. The distributed proxy server thereby eliminates the delays normally associated with (a) waiting for the web browser (20) to receive the base component and request the object(s), and (b) waiting for the browser's object request(s) to be transmitted over the satellite link. The prefetched objects are transmitted over the satellite link to the access point component (70), which in-turn stores the prefetched objects in an object cache (71). When a web browser (20) requests an inline object, the access point component (70) checks the cache (71), and if the object resides therein, returns the object to the browser (20) without forwarding the object request over the satellite link. Traffic over the forward satellite link is thus reduced. The method implemented by the distributed proxy server (68) can also be used to reduce delays and traffic over other types of links, including non-wireless links.

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