Patents
AsiaSat is constantly striving for innovation in order to make more effective use of scarce spectrum resources and to design satellite systems of higher efficiency to deliver the best customer experience for satellite users. Our engineering personnel have been working hard to develop new methods and technologies related to system design and applications for next-generation satellites.
This section outlines the inventions that have received patents from the United States Patent and Trademark Office, the China National Intellectual Property Administration and the Canadian Intellectual Property Office.
Patent Title | Description | Date of Patent Sort ascending | Patent Number | Document |
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Methods and systems for improving spectrum utilization for satellite communications | 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. |
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