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1. 发明申请

US20190210742A1 SYSTEM AND METHOD FOR INTEGRATED OPTIMIZATION OF DESIGN AND PERFORMANCE OF SATELLITE CONSTELLATIONS 审中-公开
公开(公告)号：US20190210742A1
公开(公告)日：2019-07-11
申请号：US16326916
申请日：2017-08-19
申请人： ASTROME TECHNOLOGIES PRIVATE LIMITED
发明人： NEHA SATAK , PRASAD HORABAILU LAXMINARAYANA , PRANAV DILIP KESKAR
IPC分类号： B64G1/10 , H04B7/185 , H04B7/0413 , H04B7/204 , G01S19/51
CPC分类号： B64G1/1085 , B64G1/10 , B64G1/1007 , G01S19/51 , H04B7/0413 , H04B7/185 , H04B7/1851 , H04B7/18513 , H04B7/18519 , H04B7/18543 , H04B7/19 , H04B7/195 , H04B7/2041 , Y02D70/446
摘要： The embodiments herein provide a system and method for integrated optimization of design and performance of satellite constellations. The present disclosure provides a method for optimization of design and performance of satellite constellation to provide internet connectivity at preset geographic regions. In current methods, the optimizations of subsystems are performed independently and the results are combined, resulting in a loss of overall optimality. The present disclosure defines the relationships between subsystems such that integrity of complete design is tested with fewer complexities and provides an integrated optimization framework, in which every subsystem is optimized individually and collectively. The present disclosure provides a method for optimization of power subsystem of satellites by determining the pattern of payload operation and need for peak power. The present disclosure also provides a method to minimize the number of satellites required in constellations by carefully regulating spot beams formed by individual satellites in constellations.

2. 发明授权

US09991947B1 Self-calibration of a communications device for transmit power level control 有权
公开(公告)号：US09991947B1
公开(公告)日：2018-06-05
申请号：US15610352
申请日：2017-05-31
申请人： Rockwell Collins, Inc.
发明人： Alan R. Erickson
IPC分类号： H04B7/185 , H04W52/08
CPC分类号： H04B7/18513 , H04B7/18515 , H04B7/18543 , H04W52/08
摘要： The present disclosure is directed to a method for calibrating a communications device. The method may include the step of determining a first coefficient based on correction data obtained by the transition from an initial open loop power operation to a power level of a closed loop operation. The method may also include the step of determining a second coefficient of transmitter gain based on the power of one or more transmissions by the communications device. A further step of the method may include determining a strength of a downlink signal received by the communications device from a satellite computed from knowledge of a receiver gain represented by the first coefficient. The method may also include the step of determining a transmit power level for the communications device based on the strength of the downlink signal, the first coefficient, and the second coefficient of transmitter gain.

3. 发明授权

US09979464B1 Combining transponder bandwidths for source and forward error correction encoding efficiency 有权
公开(公告)号：US09979464B1
公开(公告)日：2018-05-22
申请号：US13484756
申请日：2012-05-31
申请人： Ernest C. Chen
发明人： Ernest C. Chen
IPC分类号： H04H20/74 , H04B7/185 , H04B7/19 , H04W4/00 , G01S13/00 , G01S13/08 , H04B7/216 , H04H20/67 , H04J3/16 , H04J3/22 , H04B1/00 , H04B14/04 , H04K1/10 , H04L27/28 , H04N7/20 , H04N7/173 , H04B1/69 , H04J13/00 , H04L5/00
CPC分类号： H04B7/1851 , H04B1/69 , H04B7/18513 , H04B7/18515 , H04B7/18517 , H04B7/18523 , H04B7/18543 , H04J13/0048 , H04L5/0016 , H04L5/006 , H04L27/28 , H04N7/22 , H04N21/23608 , H04N21/23655 , H04N21/2383 , H04N21/4344 , H04N21/4347 , H04N21/4382 , H04N21/631 , H04W4/06
摘要： An apparatus and method for combining transponder bandwidths comprises a wide-band virtual transponder for transmitting a single data stream. The wide-band virtual transponder is comprised of a plurality of narrow-band physical transponders. A plurality of elementary streams are statistically multiplexed to create the single data stream, wherein the single data stream is forward error correction encoded and demultiplexed into a plurality of transponder streams for transmission by the plurality of physical transponders. The physical transponders each use a different portion of a signal spectrum, wherein the different portion may be guard bands or a combination of legacy bands and guard bands. Upon receipt, the transponder streams are multiplexed to recover the single data stream, wherein the recovered single data stream is forward error correction decoded and statistically demultiplexed to recover the plurality of elementary streams.

4. 发明授权

US09793976B2 Transmission power management device and transmission power management method 有权
公开(公告)号：US09793976B2
公开(公告)日：2017-10-17
申请号：US14220861
申请日：2014-03-20
申请人： FUJITSU LIMITED
发明人： Shunsuke Fujio , Dai Kimura
IPC分类号： H04B7/155 , H04W52/24 , H04B7/185 , H04W52/08 , H04W52/50 , H04W52/36
CPC分类号： H04B7/15535 , H04B7/18543 , H04W52/08 , H04W52/24 , H04W52/367 , H04W52/50 , Y02D70/00
摘要： A transmission power management device including: a memory, and a processor coupled to the memory and configured to: acquire a first path loss between a first relay station and a second relay station, the first relay station relaying a first signal, the second relay station relaying a second signal, and adjust a first transmission power of the first signal by the first relay station based on the first path loss.

5. 发明申请

US20170187450A1 BROADBAND ACCESS TO MOBILE PLATFORMS USING DRONE/UAV 审中-公开
公开(公告)号：US20170187450A1
公开(公告)日：2017-06-29
申请号：US15399616
申请日：2017-01-05
申请人： UBIQOMM LLC
发明人： Ahmad Jalali
IPC分类号： H04B7/185 , H04W24/02 , H04W36/00 , H04B7/155
CPC分类号： H04B7/18504 , B64C39/024 , B64C2201/122 , H04B7/1555 , H04B7/18506 , H04B7/18528 , H04B7/18539 , H04B7/18541 , H04B7/18543 , H04B7/18554 , H04B7/18578 , H04W24/02 , H04W36/0005 , H04W36/0016 , H04W36/0083 , H04W36/12 , H04W36/30 , H04W36/36 , H04W48/16 , H04W84/005 , H04W84/06 , H04W88/16 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/164 , Y02D70/446
摘要： Systems and methods for providing broadband internet access to mobile platforms such as vehicles, aircraft, and portable devices, using a network of one or more entities such as drones/unmanned aerial vehicles (UAVs). In one embodiment, the drone communication system comprises an antenna sub-system, a radio sub-system and a data switching sub-system. The mobile platforms comprise antenna and radio sub-systems to communicate with the drones, detect changes in the mobile platforms azimuth and elevation changes, and adjust the mobile platform's antenna beam to compensate for the orientation changes to optimally point toward the drones. The exemplary mobile platform further comprises methods to detect the need for handoff to a different drone and to carry out the handoff. A mechanism to improve coverage to mobile platforms that may see obstruction on their path to the drone network is also disclosed, as are apparatus and methods for cost efficiently providing reliable internet access to portable devices.

6. 发明申请

US20170099095A1 SATELLITE WITH TRANSITION BEAM SIZE 有权
公开(公告)号：US20170099095A1
公开(公告)日：2017-04-06
申请号：US14875491
申请日：2015-10-05
申请人： SPACE SYSTEMS/LORAL, LLC
发明人： Leah Wang
IPC分类号： H04B7/185 , H04W16/10 , H04W16/28
CPC分类号： H04B7/185 , H04B7/18543 , H04B7/2041 , H04W16/10 , H04W16/28
摘要： A satellite comprises an antenna system configured to provide a plurality of spot beams including one or more small spot beams illuminating a first region of a coverage area, one or more large spot beams illuminating a second region of the coverage area separate from the first region and one or more intermediate sized spot beams illuminating a transition region of the coverage area that is located between the first region and the second region so that the one or more small spot beams are separated from the one or more large spot beams by the one or more intermediate sized spot beams. The one or more intermediate sized spot beams serve to mitigate C/I for the one or more spot beams.

7. 发明授权

US09300391B2 Method and system for providing a satellite interface to support mobile communication services 有权
公开(公告)号：US09300391B2
公开(公告)日：2016-03-29
申请号：US14034546
申请日：2013-09-23
申请人： Hughes Network Systems, LLC
发明人： Channasandra Ravishankar , Adrian Morris , Anthony Noerpel , Charles Barnett , James Jong
IPC分类号： H04B7/185
CPC分类号： H04B7/18543 , H04B7/18563
摘要： An approach provides a satellite air interface to efficiently support communication with a terrestrial network. One or more packets associated with a data communication session are received from a terrestrial network configured to provide cellular communications. A frame representing the packet for transmission is generated over a satellite link to a user terminal. Signaling information for the transmission of the packet over the terrestrial network is modified or eliminated for transmission over the satellite link.

8. 发明授权

US09203504B2 System and method for enhanced paging and quality of service establishment in mobile satellite systems 有权
标题翻译：移动卫星系统中增强寻呼和服务质量的系统和方法
公开(公告)号：US09203504B2
公开(公告)日：2015-12-01
申请号：US14034491
申请日：2013-09-23
申请人： Hughes Network Systems, LLC
发明人： Gaguk Zakaria , Channasandra Ravishankar
IPC分类号： H04W68/00 , H04W68/02 , H04W68/08 , H04B7/185 , H04W76/02
CPC分类号： H04B7/18539 , H04B7/18543 , H04B7/18567 , H04W68/025 , H04W76/12
摘要： A system and method is provided to enable enhanced paging for 3GPP IMS based Mobile Satellite Communication is presented. The method is achieved by utilizing the network requested secondary PDP context activation (NRSPCA) features of 3GPP release 7. NRSPCA involves interaction between P-CSCF, GGSN, and SGSN that eventually allows SGSN to identify the traffic type of the incoming call without looking at the compressed SIP messages. RAN can do enhanced paging, if necessary; based on the request secondary PDP context activation message, if the Paging Cause is indicating conversational class. In another embodiment, enhanced paging can be achieved by marking the packet with an appropriate DSCP code, which is done by the P-CSCF. SGSN can populate the paging cause with enhanced paging code based on the DSCP code provided or RAN can escalate paging to enhanced paging by examining the DSCP code.
摘要翻译：提供了一种系统和方法，以提供用于3GPP IMS的移动卫星通信的增强寻呼。该方法通过利用3GPP版本7的网络请求的辅助PDP上下文激活（NRSPCA）特征来实现.NRSPCA涉及P-CSCF，GGSN和SGSN之间的交互，其最终允许SGSN识别来电的业务类型而不查看压缩的SIP消息。如果需要，RAN可以进行增强的寻呼; 根据请求次PDP上下文激活消息，如果分页原因指示会话类。在另一个实施例中，可以通过用由P-CSCF完成的适当的DSCP代码来标记分组来实现增强的寻呼。 SGSN可以基于提供的DSCP代码来填充寻呼原因，或者RAN可以通过检查DSCP码将寻呼升级到增强寻呼。

9. 发明授权

US09184829B2 Flexible capacity satellite communications system 有权
标题翻译：灵活的卫星通信系统
公开(公告)号：US09184829B2
公开(公告)日：2015-11-10
申请号：US13666112
申请日：2012-11-01
申请人： ViaSat, Inc.
发明人： Mark J. Miller , Charles N. Pateros
IPC分类号： H04B7/212 , H04B7/185 , H04B7/204
CPC分类号： H04B7/212 , H04B7/18515 , H04B7/18541 , H04B7/18543 , H04B7/2041
摘要： Systems and methods for supporting more flexible coverage areas and spatial capacity assignments using satellite communications systems are disclosed. A hub-spoke, bent-pipe satellite communications system includes: terminals; gateways; a controller for specifying data for controlling satellite operations in accordance with a frame definition including timeslots for a frame and defining an allocation of capacity between forward and return traffic; and a satellite including: pathways; at least one LNA, an output of which is for coupling to a pathway and to amplify uplink beam signals in accordance with the allocation; and at least one HPA, an input of which is for coupling to the pathway and to amplify downlink beam signals in accordance with the allocation, and wherein the frame definition specifies at least one pathway as a forward pathway for at least one timeslot and as a return pathway for at least one other timeslot in the frame.
摘要翻译：公开了使用卫星通信系统来支持更灵活的覆盖区域和空间容量分配的系统和方法。枢纽式弯管卫星通信系统包括：终端; 网关控制器，用于根据包括帧的时隙的帧定义来指定用于控制卫星操作的数据，并且定义前向和返回业务之间的容量分配; 卫星包括：路径; 至少一个LNA，其输出用于耦合到路径并根据分配放大上行链路波束信号; 以及至少一个HPA，其输入用于耦合到所述路径并且根据所述分配来放大下行链路波束信号，并且其中所述帧定义将至少一个路径指定为用于至少一个时隙的前向路径，并且作为在框架中至少一个其他时隙的返回路径。

10. 发明申请

US20140287678A1 TRANSMISSION POWER MANAGEMENT DEVICE AND TRANSMISSION POWER MANAGEMENT METHOD 有权
标题翻译：传输电源管理设备和传输电源管理方法
公开(公告)号：US20140287678A1
公开(公告)日：2014-09-25
申请号：US14220861
申请日：2014-03-20
申请人： FUJITSU LIMITED
发明人： Shunsuke FUJIO , Dai KIMURA
IPC分类号： H04B7/155
CPC分类号： H04B7/15535 , H04B7/18543 , H04W52/08 , H04W52/24 , H04W52/367 , H04W52/50 , Y02D70/00
摘要： A transmission power management device including: a memory, and a processor coupled to the memory and configured to: acquire a first path loss between a first relay station and a second relay station, the first relay station relaying a first signal, the second relay station relaying a second signal, and adjust a first transmission power of the first signal by the first relay station based on the first path loss.
摘要翻译：一种发送功率管理装置，包括：存储器和耦合到所述存储器的处理器，其被配置为：获取第一中继站和第二中继站之间的第一路径损耗，所述第一中继站中继第一信号，所述第二中继站中继第二信号，并且基于第一路径损耗由第一中继站调整第一信号的第一发送功率。

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