METHOD OF TRANSMITTING SIGNAL IN SATELLITE COMMUNICATION SYSTEM WITH TERRESTRIAL COMPONENT
First Claim
1. A method of transmitting a signal to a terminal in a communication system with a plurality of terrestrial components, comprising:
- generating a first group of transmission signals on the basis of a first symbol index for a first transmission signal and a second symbol index for a second transmission signal to transmit to the terminal;
generating a second group of transmission signals on the basis of the first symbol index and the second symbol index;
generating a third group of transmission signals on the basis of a first transmission data symbol and a second transmission data symbol that are obtained by operating the first symbol index and the second symbol index; and
generating a space-time code comprising the first group of transmission signals, the second group of transmission signals, and the third group of transmission signals, and transmitting the space-time code to the terminal.
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Accused Products
Abstract
The present invention relates to a method of transmitting a signal in a satellite communication system with a terrestrial component. The present invention transmits a signal using a method of transmitting a space-time code for joint communication between a satellite and a terrestrial component in a satellite system with a terrestrial component. Therefore, using the method of transmitting a space-time code, it is possible to obtain a space-time diversity gain in a satellite communication system with a terrestrial component. Further, it is possible to improve the receiving quality of a satellite signal at an area where the terrestrial component is located and increase the coverage of the terrestrial component.
33 Citations
11 Claims
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1. A method of transmitting a signal to a terminal in a communication system with a plurality of terrestrial components, comprising:
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generating a first group of transmission signals on the basis of a first symbol index for a first transmission signal and a second symbol index for a second transmission signal to transmit to the terminal; generating a second group of transmission signals on the basis of the first symbol index and the second symbol index; generating a third group of transmission signals on the basis of a first transmission data symbol and a second transmission data symbol that are obtained by operating the first symbol index and the second symbol index; and generating a space-time code comprising the first group of transmission signals, the second group of transmission signals, and the third group of transmission signals, and transmitting the space-time code to the terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of transmitting a signal to a terminal in a satellite communication system with a plurality of terrestrial components, comprising:
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generating a first group of transmission signals that is directly transmitted to the terminal, on the basis of a first symbol index for a first transmission signal and a second symbol index for a second transmission signal to transmit to the terminal; generating a second group of transmission signals that is transmitted to the terminal through the terrestrial component, on the basis of the first symbol index and the second symbol index; generating a third group of transmission signals that is transmitted to the terminal through the terrestrial components, on the basis of a first transmission data symbol and a second transmission data symbol that are obtained by operating the first symbol index and the second symbol index; and generating a space-time code comprising the first group of transmission signals, the second group of transmission signals, and the third group of transmission signals, and transmitting the space-time code to the terminal and the terrestrial components. - View Dependent Claims (10, 11)
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Specification