Satellite communication system and method for transmitting data
First Claim
1. A satellite communication system comprising:
- a base station;
a satellite communicatively connected with the base station for data transmission; and
a plurality of receivers configured to receive signals transmitted from the satellite,wherein the satellite is provided with a data storage device configured to store the data transmitted from the base station to the satellite and to supply the data provided for the transmission to the plurality of receivers,wherein the satellite communication system is configured to;
transmit data of a given data stock in at least one uplink data stream from the base station to the satellite with a first data transmission rate, andtransmit corresponding data of said given data stock in at least one downlink data stream from the satellite to the plurality of receivers with a second data transmission rate, said at least one downlink data stream being an on demand data stream, the demand being on either or both of a transmit side or a receive side,wherein a bandwidth of the uplink data stream is different from a bandwidth of the downlink data stream, the first data transmission rate is lower than the second data transmission rate, and a data transmission protocol of the uplink data stream is different from a data transmission protocol of the downlink data stream, andwherein the satellite communication system includes a modulator that is provided with a reprogrammable processor so that different downlink transmission protocols can be generated, independent from the satellite uplink transmission protocol.
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Accused Products
Abstract
A satellite communication system includes at least one base station, at least one satellite that can be brought into communication connection with the base station for data transmission, and a plurality of receivers adapted to receive signals transmitted from the satellite. The communication system is designed to transmit data in at least one uplink data stream from the base station to the satellite with a first data transmission rate and to transmit data in at least one downlink data stream from the satellite to the receivers with a second data transmission rate. The first data transmission rate is lower than the second data transmission rate and the satellite is provided with a data storage adapted to store the data transmitted from the base station to the satellite and to supply the data provided for the transmission to the receivers.
12 Citations
13 Claims
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1. A satellite communication system comprising:
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a base station; a satellite communicatively connected with the base station for data transmission; and a plurality of receivers configured to receive signals transmitted from the satellite, wherein the satellite is provided with a data storage device configured to store the data transmitted from the base station to the satellite and to supply the data provided for the transmission to the plurality of receivers, wherein the satellite communication system is configured to; transmit data of a given data stock in at least one uplink data stream from the base station to the satellite with a first data transmission rate, and transmit corresponding data of said given data stock in at least one downlink data stream from the satellite to the plurality of receivers with a second data transmission rate, said at least one downlink data stream being an on demand data stream, the demand being on either or both of a transmit side or a receive side, wherein a bandwidth of the uplink data stream is different from a bandwidth of the downlink data stream, the first data transmission rate is lower than the second data transmission rate, and a data transmission protocol of the uplink data stream is different from a data transmission protocol of the downlink data stream, and wherein the satellite communication system includes a modulator that is provided with a reprogrammable processor so that different downlink transmission protocols can be generated, independent from the satellite uplink transmission protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of transmitting data from a base station to a plurality of receivers via a satellite, the method comprising the steps of:
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transmitting data of a given data stock via at least one uplink data stream from the base station to the satellite with a first data transmission rate; storing the data transmitted from the base station to the satellite in a data storage device on-board the satellite; transmitting corresponding data of said data stock in at least one downlink data stream from the satellite to one or more receivers with a second data transmission rate, wherein the downlink data stream is a transmission on demand data stream, the demand being on either or both of a transmit side or a receive side, a bandwidth of the uplink data stream is different than a bandwidth of the downlink data stream, the first data transmission rate is lower than the second data transmission rate, and a data transmission protocol of the uplink data stream is different from a data transmission protocol of the downlink data stream. - View Dependent Claims (9, 10, 11, 12)
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13. A satellite communication system comprising:
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a base station; a satellite communicatively connected with the base station for data transmission; and a plurality of receivers configured to receive signals transmitted from the satellite, wherein the satellite is provided with a data storage device configured to store the data transmitted from the base station to the satellite and to supply the data provided for the transmission to the plurality of receivers, wherein the satellite communication system is configured to; transmit data of a given data stock in at least one uplink data stream from the base station to the satellite, and transmit corresponding data of said given data stock in at least one downlink data stream from the satellite to the plurality of receivers, said at least one downlink data stream being an on demand data stream, the demand being on either or both of a transmit side or a receive side, and wherein a bandwidth of the uplink data stream is different from a bandwidth of the downlink data stream.
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Specification