ACM-based simulcast transmission and reception apparatus and method
First Claim
1. An adaptive coding modulation ACM-basedsimulcast transmission and reception apparatus, comprising:
- a transmitter configured to analyze whether or not it is raining in a region where a receiver is present on the basis of channel state information (CSI) provided by the receiver, encode and/or modulate an image signal according to the analysis result, and provide the encoded and/or modulated image signal through a single band or multiple bands,wherein the transmitter includes;
an analyzer configured to analyze whether or not it is raining in the region where the receiver is present on the basis of the CSI;
a generator configured to generate an image signal of which a resolution has been adjusted on the basis of an original image signal according to the analysis result of the analyzer;
an encoder configured to encode and/or modulate the image signal generated by the generator according to the analysis result of the analyzer; and
a transmission unit configured to provide the image signal encoded and/or modulated by the encoder through the single band or the multiple bands according to the analysis result of the analyzer.
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Abstract
Provided are an adaptive coding modulation (ACM)-based simulcast transmission and reception apparatus and method. The apparatus includes a transmitter configured to analyze whether or not it is raining in a region where a receiver is present on the basis of channel state information (CSI) provided by the receiver, encode and/or modulate an image signal according to the analysis result, and provide the encoded and/or modulated image signal through a single band or multiple bands. On the basis of a result of analyzing whether or not it is raining in a region where a receiver is present, it is possible to effectively prevent signal attenuation caused by rain by providing image signals having different resolutions through multiple bands when the region is in a rainfall state.
11 Citations
9 Claims
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1. An adaptive coding modulation ACM-based
simulcast transmission and reception apparatus, comprising: -
a transmitter configured to analyze whether or not it is raining in a region where a receiver is present on the basis of channel state information (CSI) provided by the receiver, encode and/or modulate an image signal according to the analysis result, and provide the encoded and/or modulated image signal through a single band or multiple bands, wherein the transmitter includes; an analyzer configured to analyze whether or not it is raining in the region where the receiver is present on the basis of the CSI; a generator configured to generate an image signal of which a resolution has been adjusted on the basis of an original image signal according to the analysis result of the analyzer; an encoder configured to encode and/or modulate the image signal generated by the generator according to the analysis result of the analyzer; and a transmission unit configured to provide the image signal encoded and/or modulated by the encoder through the single band or the multiple bands according to the analysis result of the analyzer. - View Dependent Claims (2, 3, 4, 5)
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6. An adaptive coding modulation (ACM)-based simulcast transmission and reception method, comprising:
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receiving channel state information (CSI)resulting from reception of an image signal from a receiver; analyzing whether or not it is raining in a region where the receiver is resent on the basis of the CSI; generating an image of which a resolution has been adjusted on the basis of an or image signal according to the result of analyzing whether or not it is raining; encoding and/or modulating the image signal of which the resolution has been adjusted according to the result of analyzing whether or not it is raining; and providing the encoded and/or modulated image signal through a single band or multiple bands according to the result of analyzing whether or not it is raining, wherein generating the image signal of which the resolution has been adjusted includes; generating at least two image signals having different resolutions when it is analyzed that the region where the receiver is present is in a rainfall state; and generating one image signal when it is analyzed that the region where the receiver is present is in a non-rainfall state. - View Dependent Claims (7, 8, 9)
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Specification