-
公开(公告)号：US4980897A
公开(公告)日：1990-12-25
申请号：US231868
申请日：1988-08-12
申请人： Dwight W. Decker , Gary A. Anwyl , Mark D. Dankberg , Mark J. Miller , Stephen R. Hart , Kristi A. Jaska
发明人： Dwight W. Decker , Gary A. Anwyl , Mark D. Dankberg , Mark J. Miller , Stephen R. Hart , Kristi A. Jaska
CPC分类号： H04L5/00 , H04L27/3427
摘要： A multi-channel trellis encoder/decoder is disclosed for use with multi-channel data transmission systems. For each data transmission symbol interval, trellis encoding is applied across all available channels, and for each data reception symbol interval trellis decoding is applied across all available channels. In comparision with systems employing independent trellis encoding along each available channel, the present invention reduces data throughput delays by roughly an order of magnitude, and reduces implementation complexity by roughly a factor equal to the number of transmission channels. Further, the multi-channel trellis encoder will permit different data transmission rates as well as permitting variations in signal power and/or noise power from channel to channel.
摘要翻译： 公开了一种与多通道数据传输系统一起使用的多通道网格编码器/解码器。 对于每个数据传输符号间隔，网格编码被应用在所有可用信道之间，并且对于每个数据接收符号间隔网格解码被应用于所有可用信道。 与沿着每个可用信道采用独立网格编码的系统相比，本发明将数据吞吐量延迟减少大约一个数量级，并且将实现复杂度降低大约等于传输信道数量的因子。 此外，多通道网格编码器将允许不同的数据传输速率以及允许从信道到信道的信号功率和/或噪声功率的变化。
-
公开(公告)号：US08548377B2
公开(公告)日：2013-10-01
申请号：US13484184
申请日：2012-05-30
申请人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
发明人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
IPC分类号： H04W72/04
CPC分类号： H04B7/18513 , H04B7/18543 , H04B7/18582
摘要： A method is presented for communicating data in a multibeam satellite system utilizing frequency re-use. The method comprises establishing uplink service beams and downlink service beams between a satellite and a plurality of subscriber terminals. A plurality of the uplink service beams are transmitted to the satellite by re-using at least one common uplink frequency channel. A plurality of the downlink service beams are transmitted from the satellite by re-using at least one common downlink frequency channel. The method further comprises establishing at least one uplink feeder beam and at least one downlink feeder beam between the satellite and a gateway terminal. The at least one uplink feeder beam is transmitted to the satellite by further re-using the at least one common uplink frequency channel. The at least one downlink feeder beam is transmitted from the satellite by further re-using the at least one common downlink frequency channel.
摘要翻译： 提出了一种利用频率再利用在多波束卫星系统中传送数据的方法。 该方法包括在卫星与多个用户终端之间建立上行链路业务波束和下行业务波束。 通过重新使用至少一个公共上行链路频率信道将多个上行链路业务波束发送到卫星。 通过重新使用至少一个公共下行链路频率信道从卫星发送多个下行链路服务波束。 该方法还包括在卫星和网关终端之间建立至少一个上行馈线波束和至少一个下行馈线波束。 通过进一步重新使用至少一个公共上行链路频率信道将至少一个上行馈线波束发送到卫星。 通过进一步重新使用至少一个公共下行链路频率信道，从卫星发送至少一个下行链路馈送波束。
-
公开(公告)号：US20120276840A9
公开(公告)日：2012-11-01
申请号：US12406880
申请日：2009-03-18
IPC分类号： H04H20/74
CPC分类号： H04B7/18526 , H04B7/18515 , H04B7/2041
摘要： A method is presented for transmitting data in a satellite system having multiple spot beams comprising (1) sending a broadband signal in a forward direction from a gateway terminal to a communications satellite for relay to at least one subscriber terminal, (2) receiving the broadband signal at the communications satellite, wherein the communications satellite comprises a bent pipe repeater having a plurality of satellite-based transmission amplifiers, (3) using one of the plurality of satellite-based transmission amplifiers to amplify the broadband signal and no other broadband signal from the gateway terminal, to produce an amplified broadband signal, (4) sending the amplified broadband signal as one of a plurality of service spot beams to the at least one subscriber terminal, and (5) receiving and retrieving data from the amplified broadband signal at the at least one subscriber terminal.
摘要翻译： 提出了一种用于在具有多个点波束的卫星系统中发送数据的方法，包括：（1）从网关终端向通信卫星发送正向宽带信号，用于中继到至少一个用户终端;（2）接收宽带 信号，其中所述通信卫星包括具有多个基于卫星的传输放大器的弯管中继器，（3）使用所述多个基于卫星的传输放大器中的一个放大所述宽带信号，并且没有其他宽带信号 网关终端产生放大的宽带信号，（4）将放大的宽带信号作为多个服务点波束之一发送到至少一个用户终端，以及（5）从放大的宽带信号中接收和检索数据 所述至少一个用户终端。
-
公开(公告)号：US07974571B2
公开(公告)日：2011-07-05
申请号：US11818972
申请日：2008-01-09
IPC分类号： H04H1/00
CPC分类号： H04B7/18534 , H04B7/0413 , H04B7/18508 , H04B7/1858
摘要： A wireless satellite communication device is provided according to one embodiment of the invention. The wireless satellite communication device may include one or more satellite antennas, one or more local antennas and circuitry. A satellite antenna may be configured to communicate with one or more satellites. The local antenna may be configured to communicate with one or more wireless user devices within the vicinity of the wireless satellite communication device. The local antennas may include a local antenna. The circuitry may be coupled with the satellite antenna and the local antenna and may be configured to receive data from the satellite antenna and transmit the data with the local antenna. The wireless satellite communication device may also include a solar panel configured to provide electrical power to at least the satellite antenna, the local antenna, and the circuitry.
摘要翻译： 根据本发明的一个实施例提供一种无线卫星通信设备。 无线卫星通信设备可以包括一个或多个卫星天线，一个或多个本地天线和电路。 卫星天线可以被配置为与一个或多个卫星通信。 本地天线可以被配置为与无线卫星通信设备附近的一个或多个无线用户设备进行通信。 本地天线可以包括本地天线。 电路可以与卫星天线和本地天线耦合，并且可以被配置为从卫星天线接收数据并且与本地天线发送数据。 无线卫星通信设备还可以包括被配置为向至少卫星天线，本地天线和电路提供电功率的太阳能电池板。
-
公开(公告)号：US20090291633A1
公开(公告)日：2009-11-26
申请号：US12406870
申请日：2009-03-18
申请人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
发明人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H04B7/18543 , H04B7/18582
摘要： A method is presented for communicating data in a multibeam satellite system utilizing frequency re-use. The method comprises establishing uplink service beams and downlink service beams between a satellite and a plurality of subscriber terminals. A plurality of the uplink service beams are transmitted to the satellite by re-using at least one common uplink frequency channel, and a plurality of the downlink service beams are transmitted from the satellite by re-using at least one common downlink frequency channel. The method further comprises establishing at least one uplink service beam and at least one downlink service beam between the satellite and a gateway terminal. The at least one uplink service beam is transmitted to the satellite by further re-using the at least one common uplink frequency channel, and the at least one downlink service beam is transmitted from the satellite by further re-using the at least one common downlink frequency channel.
摘要翻译： 提出了一种利用频率再利用在多波束卫星系统中传送数据的方法。 该方法包括在卫星与多个用户终端之间建立上行链路业务波束和下行业务波束。 通过重新使用至少一个公共上行链路频道将多个上行链路业务波束发送到卫星，并且通过重新使用至少一个公共下行链路频率信道，从卫星发送多个下行业务波束。 该方法还包括在卫星和网关终端之间建立至少一个上行链路服务波束和至少一个下行链路服务波束。 通过进一步重新使用至少一个公共上行链路频率信道将至少一个上行链路服务波束发送到卫星，并且通过进一步重新使用至少一个公共下行链路来从卫星发送至少一个下行链路服务波束 频道。
-
公开(公告)号：US20090161732A1
公开(公告)日：2009-06-25
申请号：US12356842
申请日：2009-01-21
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04J11/003 , H04J13/0003
摘要： A communication technique based on direct sequence spread spectrum signaling employs, for all users sharing an access channel, a single spreading code that has a duration sufficiently longer than the symbol length that the likelihood of confusion between users is minimized if not eliminated. The length of the spreading code is sufficiently long that contention events can occur only when two bursts occur at the receiver within one chip time of one another.
摘要翻译： 基于直接序列扩频信令的通信技术对于共享接入信道的所有用户使用具有足够长的持续时间的持续时间的单个扩展码，如果不消除，那么使用户之间混淆的可能性被最小化。 扩展码的长度足够长，只有当接收机在彼此的一个码片时间内发生两个突发时，才能发生争用事件。
-
公开(公告)号：US20090081946A1
公开(公告)日：2009-03-26
申请号：US12187051
申请日：2008-08-06
IPC分类号： H04H20/74
CPC分类号： H04B7/18513 , H04B7/18543 , H04B7/18582
摘要： A method is presented for transmitting data in a satellite system having multiple spot beams comprising (1) sending a broadband signal in a forward direction from a gateway terminal to a communications satellite for relay to at least one subscriber terminal, (2) receiving the broadband signal at the communications satellite, wherein the communications satellite comprises a bent pipe repeater having a plurality of satellite-based transmission amplifiers, (3) using one of the plurality of satellite-based transmission amplifiers to amplify the broadband signal and no other broadband signal from the gateway terminal, to produce an amplified broadband signal, (4) sending the amplified broadband signal as one of a plurality of service spot beams to the at least one subscriber terminal, and (5) receiving and retrieving data from the amplified broadband signal at the at least one subscriber terminal.
摘要翻译： 提出了一种用于在具有多个点波束的卫星系统中发送数据的方法，包括：（1）从网关终端向通信卫星发送正向宽带信号，用于中继到至少一个用户终端;（2）接收宽带 信号，其中所述通信卫星包括具有多个基于卫星的传输放大器的弯管中继器，（3）使用所述多个基于卫星的传输放大器中的一个放大所述宽带信号，并且没有其他宽带信号 网关终端产生放大的宽带信号，（4）将放大的宽带信号作为多个服务点波束之一发送到至少一个用户终端，以及（5）从放大的宽带信号中接收和检索数据 所述至少一个用户终端。
-
公开(公告)号：US08520716B2
公开(公告)日：2013-08-27
申请号：US13494787
申请日：2012-06-12
IPC分类号： H04B1/00
CPC分类号： H04B1/707 , H04J11/003 , H04J13/0003
摘要： A communication technique based on direct sequence spread spectrum signaling employs, for all users sharing an access channel, a single spreading code that has a duration sufficiently longer than the symbol length that the likelihood of confusion between users is minimized if not eliminated. The length of the spreading code is sufficiently long that contention events can occur only when two bursts occur at the receiver within one chip time of one another.
摘要翻译： 基于直接序列扩频信令的通信技术对于共享接入信道的所有用户使用具有足够长的持续时间的持续时间的单个扩展码，如果不消除，那么使用户之间混淆的可能性被最小化。 扩展码的长度足够长，只有当接收机在彼此的一个码片时间内发生两个突发时，才能发生争用事件。
-
公开(公告)号：US20120244798A1
公开(公告)日：2012-09-27
申请号：US13484184
申请日：2012-05-30
申请人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
发明人： Mark D. Dankberg , Mark J. Miller , Kristi Jaska , Robert Wilson
CPC分类号： H04B7/18513 , H04B7/18543 , H04B7/18582
摘要： A method is presented for communicating data in a multibeam satellite system utilizing frequency re-use. The method comprises establishing uplink service beams and downlink service beams between a satellite and a plurality of subscriber terminals. A plurality of the uplink service beams are transmitted to the satellite by re-using at least one common uplink frequency channel. A plurality of the downlink service beams are transmitted from the satellite by re-using at least one common downlink frequency channel. The method further comprises establishing at least one uplink feeder beam and at least one downlink feeder beam between the satellite and a gateway terminal. The at least one uplink feeder beam is transmitted to the satellite by further re-using the at least one common uplink frequency channel. The at least one downlink feeder beam is transmitted from the satellite by further re-using the at least one common downlink frequency channel.
摘要翻译： 提出了一种利用频率再利用在多波束卫星系统中传送数据的方法。 该方法包括在卫星与多个用户终端之间建立上行链路业务波束和下行业务波束。 通过重新使用至少一个公共上行链路频率信道将多个上行链路业务波束发送到卫星。 通过重新使用至少一个公共下行链路频率信道从卫星发送多个下行链路服务波束。 该方法还包括在卫星和网关终端之间建立至少一个上行馈线波束和至少一个下行馈线波束。 通过进一步重新使用至少一个公共上行链路频率信道将至少一个上行馈线波束发送到卫星。 通过进一步重新使用至少一个公共下行链路频率信道，从卫星发送至少一个下行链路馈送波束。
-
公开(公告)号：US20120225620A1
公开(公告)日：2012-09-06
申请号：US13471011
申请日：2012-05-14
申请人： Mark J. MILLER , Mark D. Dankberg
发明人： Mark J. MILLER , Mark D. Dankberg
IPC分类号： H04W88/04
CPC分类号： H04W52/242 , H04B7/18523 , H04L1/0005 , H04L1/0011 , H04L5/0005 , H04L5/0016 , H04L5/22 , H04W28/0236 , H04W52/146
摘要： A system to provide narrowcast communications uses adaptive data rate control to individual subscribers such that the effects of precipitation or other link conditions, which are not common to all subscribers, is mitigated. The invention takes advantage of the fact that the narrowcast data consist of packets which are individually addressed to specific subscribers, or groups of subscribers. The narrowcast data is communicated on a plurality of channels, each of potentially differing data rates. The subscribers are assigned a particular channel, based upon their link quality, to receive packets addressed to them. The lower data rate channel will be less affected by adverse link conditions and are hence assigned to subscribers most likely to incur adverse link conditions.
摘要翻译： 提供窄幅通信的系统使用对个体用户的自适应数据速率控制，使得减少对所有用户不常见的降水或其他链路状况的影响被减轻。 本发明利用这样一个事实，即窄带数据由单独寻址到特定订户或订户组的分组组成。 窄数据在多个信道上通信，每个信道中的每个信道具有潜在的不同数据速率。 根据用户的链路质量为用户分配一个特定的信道，以便接收到寻址到它们的数据包。 较低的数据速率信道将受到不利的链路条件的影响较小，因此被分配给最可能引起不利链路条件的用户。
-
-
-
-
-
-
-
-
-
搜索结果
65 条记录 (耗时 0.042 秒)
