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1. 发明授权

US09009559B2 Method and apparatus for wireless data transmission subject to periodic signal blockages 有权
标题翻译：用于无线数据传输的方法和装置，受到周期性信号阻塞
公开(公告)号：US09009559B2
公开(公告)日：2015-04-14
申请号：US13422534
申请日：2012-03-16
申请人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
发明人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
IPC分类号： H03M13/00 , H04L1/00 , H03M13/27 , H03M13/29 , H03M13/25
CPC分类号： H04L1/0041 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/2936 , H03M13/6561 , H04B7/18506 , H04L1/0009 , H04L1/004 , H04L1/0042 , H04L1/0057 , H04L1/0061 , H04L1/0071
摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.
摘要翻译：提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

2. 发明申请

US20130246884A1 METHOD AND APPARATUS FOR WIRELESS DATA TRANSMISSION SUBJECT TO PERIODIC SIGNAL BLOCKAGES 有权
标题翻译：用于无线数据传输的方法和装置，包括周期性信号阻塞
公开(公告)号：US20130246884A1
公开(公告)日：2013-09-19
申请号：US13422534
申请日：2012-03-16
申请人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
发明人： Lin-Nan Lee , Mustafa Eroz , Liping Chen , Satyajit Roy
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H04L1/0041 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/2936 , H03M13/6561 , H04B7/18506 , H04L1/0009 , H04L1/004 , H04L1/0042 , H04L1/0057 , H04L1/0061 , H04L1/0071
摘要： A system and method for data transmissions in a wireless communications system, which accommodates for a periodic blockage of the transmission signal, is provided. A data stream is segmented into packets of a predetermined fixed-size for a burst-mode transmission over a channel of the communications system, wherein the transmission is subject to a periodic blockage. A forward error correction outer code is then applied to the packets of the data stream for recovery of packets subjected to the periodic blockage, and a unique word is added to each packet for acquisition of frequency, carrier phase and symbol timing of the respective packet. The packets of the data stream are interleaved based on an interleaver of a depth based at least in part on a ratio of a blockage free duration between two consecutive blockages of the periodic blockage to a duration of each blockage of the periodic blockage.
摘要翻译：提供了一种用于无线通信系统中的数据传输的系统和方法，其适应于传输信号的周期性阻塞。数据流被分割成预定固定大小的分组，用于通信系统的信道上的突发模式传输，其中传输受到周期性的阻塞。然后将前向纠错外码应用于数据流的分组，用于恢复遭受周期性阻塞的分组，并且向每个分组添加唯一的字以获取相应分组的频率，载波相位和符号定时。数据流的数据包基于至少部分地基于周期性阻塞的两个连续阻塞之间的无阻塞持续时间与周期性阻塞的每次阻塞的持续时间的比率，基于深度的交织器进行交织。

3. 发明授权

US08897206B2 Frame timing synchronization in a geostationary satellite system 有权
公开(公告)号：US08897206B2
公开(公告)日：2014-11-25
申请号：US13479094
申请日：2012-05-23
申请人： Udaya R. Bhaskar , Yezdi Antia , Satyajit Roy
发明人： Udaya R. Bhaskar , Yezdi Antia , Satyajit Roy
IPC分类号： H04B7/185
CPC分类号： H04B7/2048 , H04B7/18513 , H04B7/2125 , H04W56/001
摘要： Aspects of the invention provide a system and method to allow inroute frame timing synchronization without the aid of hub signal loopback or satellite ephemeris data. Furthermore, it allows tracking and compensating of the satellite motion to allow multiple remotes to use TDMA on the inroute frequencies, while minimizing the aperture. Two main techniques proposed are CLT and polling based approaches, which are used in combination for an optimum solution. In CLT based approach, hub transmits remote specific timing correction feedback messages on the outroute on as needed basis. In polling based approach, the remotes derive their timing based on a per-beam average delay estimate broadcast by the hub and a measured local delay specific to each outroute stream from a remote. An aspect of the invention uses triangulation method to determine satellite position. Furthermore, an aspect of the invention uses hub burst arrival method instead of polling approach.

4. 发明申请

US20130315137A1 FRAME TIMING SYNCHRONIZATION IN A GEOSTATIONARY SATELLITE SYSTEM 有权
标题翻译：在地球卫星系统中的帧时序同步
公开(公告)号：US20130315137A1
公开(公告)日：2013-11-28
申请号：US13479094
申请日：2012-05-23
申请人： Udaya R. Bhaskar , Yezdi Antia , Satyajit Roy
发明人： Udaya R. Bhaskar , Yezdi Antia , Satyajit Roy
IPC分类号： H04B7/19 , H04W56/00 , H04B7/212
CPC分类号： H04B7/2048 , H04B7/18513 , H04B7/2125 , H04W56/001
摘要： Aspects of the invention provide a system and method to allow inroute frame timing synchronization without the aid of hub signal loopback or satellite ephemeris data. Furthermore, it allows tracking and compensating of the satellite motion to allow multiple remotes to use TDMA on the inroute frequencies, while minimizing the aperture. Two main techniques proposed are CLT and polling based approaches, which are used in combination for an optimum solution. In CLT based approach, hub transmits remote specific timing correction feedback messages on the outroute on as needed basis. In polling based approach, the remotes derive their timing based on a per-beam average delay estimate broadcast by the hub and a measured local delay specific to each outroute stream from a remote. An aspect of the invention uses triangulation method to determine satellite position. Furthermore, an aspect of the invention uses hub burst arrival method instead of polling approach.
摘要翻译：本发明的方面提供了一种系统和方法，其允许在无需集线器信号环回或卫星星历数据的帮助下进行帧定时同步。此外，它允许跟踪和补偿卫星运动，以允许多个遥控器在最小化孔径的同时使用TDMA在路由频率上。提出的两个主要技术是基于CLT和轮询的方法，它们被组合用于最佳解决方案。在基于CLT的方法中，集线器根据需要在远端传输远程特定定时校正反馈消息。在基于轮询的方法中，遥控器基于由集线器广播的每个波束的平均延迟估计和来自远程的每个外向流特定的测量的本地延迟导出其定时。本发明的一个方面使用三角测量方法来确定卫星位置。此外，本发明的一个方面使用集线器突发到达方法而不是轮询方法。

5. 发明授权

US07936787B2 Technique for data compression by decoding binary encoded data 有权
标题翻译：通过解码二进制编码数据进行数据压缩的技术
公开(公告)号：US07936787B2
公开(公告)日：2011-05-03
申请号：US10387177
申请日：2003-03-12
申请人： Satyajit Roy , Roderick Ragland , Douglas M. Dillon
发明人： Satyajit Roy , Roderick Ragland , Douglas M. Dillon
IPC分类号： H04J3/00
CPC分类号： H04L29/06 , H04L69/16 , H04L69/163
摘要： This disclosure relates to the transmission of binary data over a network between a transmission host and a receiving host. The transmission host receives packets of data including data in a first format which may be ASCII formatted and contain 6 bits-per-byte words, and including data which had an original binary format containing greater than 6 bits-per-byte words (such as 8 bits-per-byte) and which has been encoded (such as Uuencoded) to 6 bits-per-byte words. The transmission host searches the packets and identifies the encoded data and reverse codes the encoded data to its original binary format, before transmitting the data on a suitable network transmission media that can transmit both ASCII formatted data and data having greater than 6 bit-per-byte formats. The transmission host also includes an application packet demultiplexer for separating the incoming data according its application such as HTTP, NNTP, FTP, etc. The transmitting host includes an identifier in the packets for identifying the reverse coded data. The receiving host responds to the identifier and may encode the previously reverse coded data.
摘要翻译：本公开涉及在传输主机和接收主机之间的网络上传输二进制数据。发送主机接收数据包，其中数据包括第一格式的数据，该格式可以是ASCII格式的并且包含每字节6位的字，并且包括具有包含大于每位字节6位的原始二进制格式的数据（例如每字节8位），并且其已经被编码（例如Uuencoded）到每字节字节6位。在将数据传输到可以传输ASCII格式的数据和具有大于每位6比特数据的数据的合适网络传输介质上之前，传输主机搜索数据包并识别编码数据并将编码数据逆向编码为其原始二进制格式，字节格式。发送主机还包括应用分组解复用器，用于根据其应用（诸如HTTP，NNTP，FTP等）分离输入数据。发送主机包括用于标识反向编码数据的分组中的标识符。接收主机响应该标识符并且可以对先前的反向编码数据进行编码。

6. 发明授权

US11589315B2 Dynamic resizing of a satellite link outroute or forward channel 有权
公开(公告)号：US11589315B2
公开(公告)日：2023-02-21
申请号：US16692249
申请日：2019-11-22
申请人： Satyajit Roy , George Choquette
发明人： Satyajit Roy , George Choquette
IPC分类号： H04W52/14 , H04W52/36 , H04W72/04 , H04W72/10 , H04L1/00 , H04B7/185 , H04W72/044
摘要： A satellite communication system and method for resizing an outroute carrier from a gateway to a terminal population including determining, at the gateway, an insufficiency based on an Uplink Power Control (ULPC) function in conjunction with an Adaptive Coding and Modulation (ACM) function failing to maintain the outroute carrier in operation; and downsizing, at the gateway based on the insufficiency, the outroute carrier by decreasing a symbol rate of the outroute carrier from the gateway while maintaining the aggregate carrier output power level to increase an outroute carrier margin, where the insufficiency is based on a fade. The outroute carrier may be upsized when the insufficiency expires or is reduced.

7. 发明授权

US08140687B2 Performance enhancing proxy handover 有权
标题翻译：性能提升代理切换
公开(公告)号：US08140687B2
公开(公告)日：2012-03-20
申请号：US12508931
申请日：2009-07-24
申请人： Satyajit Roy , Douglas Dillon
发明人： Satyajit Roy , Douglas Dillon
IPC分类号： G06F15/16
CPC分类号： H04L63/1466 , H04W36/0011 , H04W80/04 , H04W88/182
摘要： An approach is provided for graceful shutdown and startup of spoofing when a handover procedure is performed. A handover of a performance enhancing proxy (PEP) session associated with a transport connection is detected. A shutdown procedure is initiated to stop spoofing of the transport connection in response to the detected handover. The shutdown procedure avoids teardown of the transport connection during the handover from a first link to a second link of a communication system.
摘要翻译：当执行切换过程时，提供了一种用于正常关闭和启动欺骗的方法。检测与传输连接相关联的性能增强代理（PEP）会话的切换。启动关闭过程以响应于检测到的切换来停止对传输连接的欺骗。关闭过程避免了在从通信系统的第一链路到第二链路的切换期间拆除传输连接。

8. 发明授权

US11233562B1 Mobile satellite modem for combined geostationary, medium and low earth orbit satellite operation 有权
公开(公告)号：US11233562B1
公开(公告)日：2022-01-25
申请号：US17136558
申请日：2020-12-29
申请人： Guy Montgomery , George Choquette , Satyajit Roy
发明人： Guy Montgomery , George Choquette , Satyajit Roy
IPC分类号： H04B7/185 , H04B7/26 , H04B7/204
摘要： The present teachings include a method and computing apparatus for triggering synchronization of a satellite modem to a carrier frequency of a beam of a satellite, retrieving ephemeris information for the satellite and beam configuration information for the beam, calculating a velocity of the satellite per the ephemeris information, and adjusting the carrier frequency of the satellite modem when communicating via the beam to compensate for a doppler offset induced in the carrier frequency by the velocity. In the method, the satellite has a satellite type selected from a Geosynchronous Earth Orbit (GEO), Medium Earth Orbit (MEO) or Low Earth Orbit (LEO) type of satellite, and the satellite type is different than a satellite type of an immediately preceding synchronization.

9. 发明授权

US11031998B2 Bonding and redundancy for satellite transport paths 有权
公开(公告)号：US11031998B2
公开(公告)日：2021-06-08
申请号：US16155549
申请日：2018-10-09
申请人： Satyajit Roy , George Choquette
发明人： Satyajit Roy , George Choquette
IPC分类号： H04B7/185 , H04W24/10
摘要： A method for using multiple communication paths in a satellite network is disclosed. The method including: initiating a connection request from a first peer to a second peer; providing communication paths between the first peer and the second peer; retrieving a policy corresponding to the communication paths, the first peer and the second peer; receiving a transport metric for at least one of the communication paths; selecting a path from the communication paths based on a connection metric, the transport metric and the policy; and establishing a connection between the first peer and the second peer with the path, wherein at least one of the communication paths is relayed by a satellite.

10. 发明授权

US11588546B2 Mobile satellite modem for combined geostationary, medium and low earth orbit satellite operation 有权
公开(公告)号：US11588546B2
公开(公告)日：2023-02-21
申请号：US17553155
申请日：2021-12-16
申请人： Guy Montgomery , George Choquette , Satyajit Roy
发明人： Guy Montgomery , George Choquette , Satyajit Roy
IPC分类号： H04B7/185 , H04B7/26 , H04B7/204
摘要： The present teachings include a method and computing apparatus for triggering synchronization of a satellite modem to a carrier frequency of a beam of a satellite, retrieving ephemeris information for the satellite and beam configuration information for the beam, calculating a velocity of the satellite per the ephemeris information, and adjusting the carrier frequency of the satellite modem when communicating via the beam to compensate for a doppler offset induced in the carrier frequency by the velocity. In the method, the satellite has a satellite type selected from a Geosynchronous Earth Orbit (GEO), Medium Earth Orbit (MEO) or Low Earth Orbit (LEO) type of satellite, and the satellite type is different than a satellite type of an immediately preceding synchronization.

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