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1. 发明申请

US20200259560A1 HIGH THROUGHPUT SATELLITES AND METHODS OF OPERATING HIGH THROUGHPUT SATELLITES FOR RELAYING DATA BETWEEN LOW EARTH ORBIT SATELLITES TO ENDPOINTS 审中-公开
公开(公告)号：US20200259560A1
公开(公告)日：2020-08-13
申请号：US16731200
申请日：2019-12-31
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/185 , H04B7/204 , H04B7/195
摘要： A high throughput satellite (HTS) and a method of operating the HTS for relaying data between a low earth orbit (LEO) satellite and a target ground station, where the HTS provides spot beams for a spot beam coverage area. The method of operating the HTS includes: determining an estimated trajectory of an orbiting LEO satellite; assigning a plurality of assigned spot beams having a matching color re-use polarization; and transmitting assignments of the plurality of assigned spot beams to the high throughput satellite to cause the high throughput satellite to maintain the inter-satellite link via a first spot beam and one or more assigned subsequent spot beams having the matching color re-use polarization.

2. 发明授权

US10707954B2 Dual-band communication satellite system and method 有权
公开(公告)号：US10707954B2
公开(公告)日：2020-07-07
申请号：US16408104
申请日：2019-05-09
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/204 , H04B7/185
摘要： Dual-band satellite communication systems and methods are described. A dual-band satellite communication system is described with an array of feeds. The array includes single band feeds and one or more multi-band feeds. The multi-band feeds provide dual-band spot beams. Dual-band spot beams include a first frequency band spot beam and a second frequency band spot beam. A spot beam layout may be provided when a shared reflector for the array of feeds is provided. The first frequency band beamwidth may be smaller than a second frequency band beamwidth and the number of multi-band feeds in the array of feeds may be less than the number of single band feeds.

3. 发明申请

US20200014460A1 HIGH THROUGHPUT SATELLITES AND METHODS OF OPERATING HIGH THROUGHPUT SATELLITES FOR RELAYING DATA BETWEEN LOW EARTH ORBIT SATELLITES TO ENDPOINTS 审中-公开
公开(公告)号：US20200014460A1
公开(公告)日：2020-01-09
申请号：US16026816
申请日：2018-07-03
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/185 , H04B7/195 , H04B7/204
摘要： A high throughput satellite (HTS) and a method of operating the HTS for relaying data between a low earth orbit (LEO) satellite and a target ground station, where the HTS provides spot beams for a spot beam coverage area. The method of operating the HTS includes: determining an estimated trajectory of an orbiting LEO satellite; assigning a plurality of assigned spot beams having a matching color re-use polarization; and transmitting assignments of the plurality of assigned spot beams to the high throughput satellite to cause the high throughput satellite to maintain the inter-satellite link via a first spot beam and one or more assigned subsequent spot beams having the matching color re-use polarization.

4. 发明授权

US10291317B2 Dual-band communication satellite system and method 有权
公开(公告)号：US10291317B2
公开(公告)日：2019-05-14
申请号：US15259911
申请日：2016-09-08
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/185 , H04B7/204
摘要： Dual-band satellite communication systems and methods are described. A dual-band satellite communication system is described with an array of feeds. The array includes single band feeds and one or more multi-band feeds. The multi-band feeds provide dual-band spot beams. Dual-band spot beams include a first frequency band spot beam and a second frequency band spot beam. A spot beam layout may be provided when a shared reflector for the array of feeds is provided. The first frequency band beamwidth may be smaller than a second frequency band beamwidth and the number of multi-band feeds in the array of feeds may be less than the number of single band feeds.

5. 发明授权

US11621771B1 Satellite payload with full downlink spectrum usage 有权
公开(公告)号：US11621771B1
公开(公告)日：2023-04-04
申请号：US17504178
申请日：2021-10-18
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Harry Yin Chung Leung , Hai Hu
IPC分类号： H04B7/185 , H04L27/26
摘要： Satellite communication methods and payloads are described. The payload and methods are designed to enable effective use of carrier signals in the guard band region of a channelized band of spectrum. An on-board digital channelizer may implement a band edge power monitor for measuring power spectral density in the band edges of a channel and, if it exceeds a preset threshold level, downscaling the signal amplitude in the band edges to prevent hardware damage to the payload. The channelizer may further implement a band edge gain adjustment filter for shaping the overall frequency response to flatten the response across adjacent channels, including through the guard band region between the passbands of the adjacent channels.

6. 发明授权

US10972191B2 Uplink interference geolocation method and system for high throughput satellite 有权
公开(公告)号：US10972191B2
公开(公告)日：2021-04-06
申请号：US15986318
申请日：2018-05-22
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B15/00 , H04B7/185
摘要： A geolocation method and system for locating the source of interference to a high throughput satellite. The method involves determining relative power level differences between interference signals received by the victim spot beam and co-colored nearby spot beams on the same satellite. Using beam pattern data, the relative power levels for a pair of beams determines contour lines of possible location the correspond to the relative power difference in the signals received by the two beams in the pair. A point of intersection of contour lines from multiple pairs of spot beams indicates the location of the source of interference.

7. 发明申请

US20190268066A1 DUAL-BAND COMMUNICATION SATELLITE SYSTEM AND METHOD 审中-公开
公开(公告)号：US20190268066A1
公开(公告)日：2019-08-29
申请号：US16408104
申请日：2019-05-09
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/204 , H04B7/185
摘要： Dual-band satellite communication systems and methods are described. A dual-band satellite communication system is described with an array of feeds. The array includes single band feeds and one or more multi-band feeds. The multi-band feeds provide dual-band spot beams. Dual-band spot beams include a first frequency band spot beam and a second frequency band spot beam. A spot beam layout may be provided when a shared reflector for the array of feeds is provided. The first frequency band beamwidth may be smaller than a second frequency band beamwidth and the number of multi-band feeds in the array of feeds may be less than the number of single band feeds.

8. 发明授权

US10291315B1 Methods and systems for operating a high throughput satellite 有权
公开(公告)号：US10291315B1
公开(公告)日：2019-05-14
申请号：US15997399
申请日：2018-06-04
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Fred Chun Yin Vong , Harry Yin Chung Leung , Hai Hu , Man Hei Chan , Kat Fan Yip
IPC分类号： H04B7/185 , H04W16/28
摘要： A high throughput satellite and a method of operating a high throughput satellite. The satellite has multiple modes of operation and transitions between them in response to the spectrum fill rate. Modes of operation may include altering color re-use patterns to increase or reduce number of colors, using intra-beam geographic sub-division, or precoding downlink signals.

9. 发明申请

US20160254855A1 METHODS AND SYSTEMS FOR IMPROVING SPECTRUM UTILIZATION FOR SATELLITE COMMUNICATIONS 审中-公开
标题翻译：改进卫星通信频谱利用的方法与系统
公开(公告)号：US20160254855A1
公开(公告)日：2016-09-01
申请号：US14633909
申请日：2015-02-27
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong TONG , Fred Chun Yin VONG , Hai HU , Harry Yin Chung LEUNG
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H01Q1/288 , H04B1/0057 , H04B7/18515 , H04B7/18528 , H04B7/18532 , H04B7/2041 , H04L69/22 , H04W72/0426 , H04W72/0453
摘要： Satellite communication methods and payloads are described. An imbalance in uplink and downlink availability may be mitigated through digitizing uplink spectrum, extracting guard band channels, and grouping the guard band channels to create a composite channel. The composite channel is converted to analog and RF up-converted, amplified, and multiplexed with other downlink analog channels before being transmitted to Earth. The guard bands may be from the same band of spectrum or different bands of spectrum, such as C band, Ka band, Ku band, etc. A satellite payload is described with dual output multiplexers having partially overlapping channels and a dual feed configuration. In one downlink implementation, unused regional band spectrum may be dynamically allocated to a spot beam. In one uplink implementation, regional band spectrum may be shared by a spot beam using spatial separation of the regional uplink location from the spot beam coverage area and digital cancellation techniques.
摘要翻译：描述卫星通信方法和有效载荷。上行链路和下行链路可用性的不平衡可以通过数字化上行链路频谱，提取保护频带信道和分组保护频带信道来创建复合信道来减轻。在传输到地球之前，复合信道被转换为模拟和RF上转换，放大和与其他下行链路模拟信道多路复用。保护频带可以来自相同的频谱频带或不同的频谱带，例如C频带，Ka频带，Ku频带等。卫星有效载荷被描述为具有部分重叠信道和双馈送配置的双输出多路复用器。在一个下行链路实现中，未使用的区域频谱频谱可以动态分配给点波束。在一个上行链路实现中，区域波段可以由点波束共享，使用区域上行链路位置与点波束覆盖区域和数字消除技术的空间分离。

10. 发明申请

US20230123034A1 SATELLITE PAYLOAD WITH FULL DOWNLINK SPECTRUM USAGE 有权
公开(公告)号：US20230123034A1
公开(公告)日：2023-04-20
申请号：US17504178
申请日：2021-10-18
申请人： Asia Satellite Telecommunications Company Limited
发明人： Roger Shun Hong Tong , Harry Yin Chung Leung , Hai Hu
IPC分类号： H04B7/185 , H04L27/26
摘要： Satellite communication methods and payloads are described. The payload and methods are designed to enable effective use of carrier signals in the guard band region of a channelized band of spectrum. An on-board digital channelizer may implement a band edge power monitor for measuring power spectral density in the band edges of a channel and, if it exceeds a preset threshold level, downscaling the signal amplitude in the band edges to prevent hardware damage to the payload. The channelizer may further implement a band edge gain adjustment filter for shaping the overall frequency response to flatten the response across adjacent channels, including through the guard band region between the passbands of the adjacent channels.

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