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1. 发明申请

WO2008054917A3 MULTI-SATELLITE COMMUNICATION SYSTEMS 审中-公开
标题翻译：多卫星通信系统
公开(公告)号：WO2008054917A3
公开(公告)日：2008-07-31
申请号：PCT/US2007076579
申请日：2007-08-22
申请人： VIASAT INC , DANKBERG MARK D , MILLER MARK J , PATEROS CHARLES N
发明人： DANKBERG MARK D , MILLER MARK J , PATEROS CHARLES N
IPC分类号： H04B7/185
CPC分类号： H04L5/0016 , H04B7/10 , H04B7/18513 , H04L5/0026 , H04L5/12 , H04L27/2602 , H04L27/2647
摘要： Satellite communication systems and methods are disclosed. The communication system may include a gateway in communication with two satellites. The satellites are configured to receive polarized signals from a first plurality of users and orthogonally polarized signals from a second plurality of users. The signal may be an OFDM signal. The subscriber terminals may include an antenna pointed toward at least one of the satellites and configured to receive OFDM signals. The OFDM signal time is proportional to the longest transmission time difference of all subscriber terminals within the geographic area serviced by the satellites. Various other communication schemes are disclosed utilizing multiple satellites are also disclosed.
摘要翻译：公开了卫星通信系统和方法。通信系统可以包括与两颗卫星通信的网关。卫星被配置为从第一多个用户接收偏振信号和来自第二多个用户的正交极化信号。信号可以是OFDM信号。用户终端可以包括指向至少一个卫星的天线，并且被配置为接收OFDM信号。 OFDM信号时间与由卫星服务的地理区域内的所有用户终端的最长传输时间差成比例。还公开了利用多颗卫星的各种其它通信方案。

2. 发明申请

WO2008076877A9 SATELLITE COMMUNICATION SYSTEM AND METHOD WITH ASYMMETRIC FEEDER AND SERVICE FREQUENCY BANDS 审中-公开
标题翻译：卫星通信系统与不对称馈线和服务频段的方法
公开(公告)号：WO2008076877A9
公开(公告)日：2008-09-25
申请号：PCT/US2007087568
申请日：2007-12-14
申请人： VIASAT INC , MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
发明人： MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
IPC分类号： H04Q7/20
CPC分类号： H04B7/1858 , H04B7/18515
摘要： System and method for communicating data in a multibeam satellite system having feeder beams associated with a plurality of gateways and a plurality of service beams associated with a plurality of user subscriber terminals utilizing frequency re-use by service beams between a satellite and a plurality of subscriber terminals, wherein the service beams are transmitted to and from the satellite by re-using at least one common frequency channel of the service beam, such that the beam allocation is asymmetric among available frequency channels. The result is a potential for reduction of transponder resources.
摘要翻译：用于在具有与多个网关相关联的馈线波束和与多个用户终端相关联的多个服务波束的多波束卫星系统中传送数据的系统和方法，利用卫星和多个用户之间的服务波段的频率重用终端，其中通过重新使用服务波束的至少一个公共频率信道来将服务波束发送到卫星，从而使得波束分配在可用频率信道之间是不对称的。结果是减少转发器资源的潜力。

3. 发明申请

WO2008076877A2 SATELLITE COMMUNICATION SYSTEM AND METHOD WITH ASYMMETRIC FEEDER AND SERVICE FREQUENCY BANDS 审中-公开
公开(公告)号：WO2008076877A2
公开(公告)日：2008-06-26
申请号：PCT/US2007087568
申请日：2007-12-14
申请人： VIASAT INC , MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
发明人： MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
IPC分类号： H04B7/185
CPC分类号： H04B7/1858 , H04B7/18515
摘要： System and method for communicating data in a multibeam satellite system having feeder beams associated with a plurality of gateways and a plurality of service beams associated with a plurality of user subscriber terminals utilizing frequency re-use by service beams between a satellite and a plurality of subscriber terminals, wherein the service beams are transmitted to and from the satellite by re-using at least one common frequency channel of the service beam, such that the beam allocation is asymmetric among available frequency channels. The result is a potential for reduction of transponder resources.

4. 发明申请

WO2008042672A2 CODE REUSE MULTIPLE ACCESS FOR SATELLITE RETURN LINK 审中-公开
标题翻译：代码重新使用卫星返回链路的多路访问
公开(公告)号：WO2008042672A2
公开(公告)日：2008-04-10
申请号：PCT/US2007079559
申请日：2007-09-26
申请人： VIASAT INC , MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
发明人： MILLER MARK J , DANKBERG MARK D , PATEROS CHARLES N
IPC分类号： H04B1/707 , H04J13/00
CPC分类号： H04B1/707 , H04J11/003 , H04J13/0003
摘要： This invention is a multiple access communication technique by which a multitude of transmitters communicate with receivers using direct sequence spread spectrum signaling. The direct sequence codes are reused by a large number of simultaneous transmitters, so the system is named Code Reuse Multiple Access ("CRMA"). This reuse method requires only a small number of codes relative to the number of simultaneous transmitters, and can use as few as one code for all the users. The direct sequence codes are not required to have special properties such as maximal length. The lengths of the spreading codes employed are not necessarily related to the bit or symbol interval. CRMA can be implemented on a Paired Carrier Multiple Access ("PCMA") system with or without a novel receiver structure which is also described. In an environment having virtual channels, a clock is derived from the received signal in the uplink by sampling the signal to detect symbol edges.
摘要翻译：本发明是一种多址通信技术，通过该技术，多个发射机使用直接序列扩频信令与接收机进行通信。直接序列码被大量同时发射机重复使用，因此该系统被命名为码重用多址（“CRMA”）。这种重复使用方法只需要少量的代码，相对于同时发射机的数量，并且可以为所有用户使用少至一个代码。直接序列码不需要具有诸如最大长度之类的特殊属性。所使用的扩展码的长度不一定与比特或符号间隔有关。 CRMA可以在具有或不具有新颖接收机结构的配对载波多路访问（“PCMA”）系统上实现，其也被描述。在具有虚拟信道的环境中，通过对信号进行采样以检测符号边缘，从上行链路中的接收信号中导出时钟。

5. 发明申请

WO2010144918A3 MULTI-BAND SATELLITE COMMUNICATION FADE MITIGATION 审中-公开
标题翻译：多通道卫星通信减速
公开(公告)号：WO2010144918A3
公开(公告)日：2011-02-24
申请号：PCT/US2010038548
申请日：2010-06-14
申请人： VIASAT INC , DANKBERG MARK D , HUNTER DARYL T , PATEROS CHARLES N
发明人： DANKBERG MARK D , HUNTER DARYL T , PATEROS CHARLES N
IPC分类号： H04B7/185 , H04B17/40 , H04W84/06
CPC分类号： H04B7/2041 , H04B7/18539
摘要： One or more satellites may generate multiple beams. The beams may facilitate communication over multiple communication frequency bands including a relatively high capacity frequency band and a relatively fade-resilient frequency band. The beams may overlap. User terminals and/or gateways in a beam intersection may select from among the multiple communication frequency bands to communication with the satellite(s). Responsive to detection of rain fade, some of the user terminals and/or gateways may be instructed to use the relatively fade-resilient frequency band. The multiple communication frequency bands may be assigned to the user terminals and/or gateways so as to maximize total system capacity.
摘要翻译：一个或多个卫星可以产生多个波束。波束可以促进包括相对高容量的频带和相对衰落的频带在内的多个通信频带的通信。梁可能重叠。波束交叉点中的用户终端和/或网关可以从多个通信频带中选择与卫星的通信。响应于雨褪色的检测，可以指示一些用户终端和/或网关使用相对衰落的频带。可以将多个通信频带分配给用户终端和/或网关，以便最大化总系统容量。

6. 发明申请

WO2007044957A3 CLOSED-LOOP RECEIVER FEEDBACK PRE-DISTORTION 审中-公开
标题翻译：闭环接收器反馈预失真
公开(公告)号：WO2007044957A3
公开(公告)日：2007-11-22
申请号：PCT/US2006040350
申请日：2006-10-13
申请人： VIASAT INC , BALASUBRAMANIAN RAMA , MILLER MARK J , PATEROS CHARLES N
发明人： BALASUBRAMANIAN RAMA , MILLER MARK J , PATEROS CHARLES N
IPC分类号： H04L7/00
CPC分类号： H04W52/52 , H03F1/3247 , H03F2201/3233 , H04L25/03343 , H04L27/368 , H04W52/08
摘要： Methods and systems for calculating pre-distortion coefficients in a closed-loop communication system are presented. Transmission terminals that include high power amplifiers are difficult to operate at or near the saturation point without transmitting signals with nonlinear distortions. By pre-distorting the signal prior to amplification the transmitted nonlinear distortions may be decreased. A closed-looped pre-distortion system may include a receiver that calculates the pre-distortion coefficients and transmits these coefficients back to the transmitter. These coefficients may be stored in a pre-distortion coefficient lookup table and may be updated by the receiver terminal.
摘要翻译：提出了一种用于计算闭环通信系统中预失真系数的方法和系统。包含高功率放大器的传输终端难以在饱和点或接近饱和点的情况下运行，而不会发射具有非线性失真的信号。通过在放大之前对信号进行预失真，传输的非线性失真可能会降低。闭环预失真系统可以包括计算预失真系数并将这些系数发送回发射机的接收机。这些系数可以存储在预失真系数查找表中，并且可以由接收器终端更新。

7. 发明申请

WO2013086332A3 BEAM SWITCHING IN A BENT PIPE SATELLITE FOR REPLACING A FAILING GATEWAY BY A VIRTUAL UTILITY GATEWAY 审中-公开
标题翻译：用于通过虚拟实用网关更换失败网关的BENT管道卫星中的光束切换
公开(公告)号：WO2013086332A3
公开(公告)日：2013-10-10
申请号：PCT/US2012068464
申请日：2012-12-07
申请人： VIASAT INC
发明人： MILLER MARK J , PATEROS CHARLES N
IPC分类号： H04B7/185 , H04B7/204
CPC分类号： H04W88/04 , H04B7/18515 , H04B7/2041
摘要： A method for communicating includes utilizing a satellite comprising receivers, transmitters, transmit switches, and a gateway switch structure. Prior to a time T, each of at least P receivers are used to receive one of at least P signals from P gateway terminals. During one frame, the gateway switch structure is used to switch the at least P signals to the plurality of transmit switches. Each of the at least P signals are switched into fixed location beams. After time T and before a time T2, each of at least Q receivers are used to receive a different one of at least Q signals from Q gateway terminals. During one frame, the gateway switch structure is used to switch the at least Q signals to the plurality of transmit switches. Each of the at least Q signals are switched into fixed location beams. Q and P are non-zero positive integers and Q
摘要翻译：一种用于通信的方法包括利用包括接收机，发射机，发射交换机和网关交换机结构的卫星。在时间T之前，至少P个接收机中的每一个用于从P个网关终端接收至少P个信号中的一个。在一帧期间，网关交换机结构用于将至少P个信号切换到多个发射交换机。至少P个信号中的每一个被切换到固定位置波束。在时间T之后，在时间T2之前，使用至少Q个接收机中的每一个接收来自Q网关终端的至少Q个信号中的不同的一个。在一帧期间，网关交换机结构用于将至少Q个信号切换到多个发射交换机。至少Q个信号中的每一个被切换成固定位置波束。 Q和P是非零正整数，Q

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