Content differentiated hierarchical modulation used in radio frequency communications
First Claim
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1. A communication system comprising at least one base station, the at least one base station comprising transmit circuitry operable to:
- transmit first data using a first modulation layer of a first carrier radio frequency (RF) signal;
transmit second data using a second modulation layer of the first carrier RF signal during transmission of the first data; and
wherein the first and second modulation layers are hierarchical modulation layers of the carrier RF signal, and the first data comprises different content than the second data.
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Abstract
The present invention employs hierarchical modulation to simultaneously transmit data over different modulation layers using a carrier RF signal. Each modulation layer may be of a higher or lower order than the other modulation layers. Certain embodiments of the present invention may transmit different information on the different modulation layers. Other embodiments of the present invention may use the different layers for processing different information streams.
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Citations
40 Claims
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1. A communication system comprising at least one base station, the at least one base station comprising transmit circuitry operable to:
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transmit first data using a first modulation layer of a first carrier radio frequency (RF) signal; transmit second data using a second modulation layer of the first carrier RF signal during transmission of the first data; and wherein the first and second modulation layers are hierarchical modulation layers of the carrier RF signal, and the first data comprises different content than the second data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification