Simultaneous use of multiple radio frequency channels
First Claim
1. A method comprising:
- modulating, by a first communication system, a first digital signal that encodes a first stream of data with a second digital signal that encodes a second stream of data that is different than the first stream of data, to generate a third digital signal that is adapted to occupy a first range of frequencies during wireless transmission by the first communication system,wherein the second digital signal encodes the second stream of data at a second frequency that is greater than a first frequency at which the first digital signal encodes the first stream of data;
generating, by the first communication system, a filtered digital signal by removing or reducing a power level of frequency components of the third digital signal over a second range of frequencies that is to fall within the first range of frequencies during wireless transmission by the first communication system; and
providing the filtered digital signal for wireless transmission by the first communication system.
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Accused Products
Abstract
In general, the subject matter described in this specification can be embodied in methods, systems, and program products for identifying data that is designated for wireless transmission to a remote computing device. A digital signal that encodes the data for transmission across a band of radio frequency channels is generated.
Multiple radio frequency channels in the band that are available are determined. The digital signal is filtered to substantially reduce a power level of the digital signal at frequencies that correspond to channels in the band that have not been determined to be available. The filtered digital signal is converted to an analog signal. The analog signal is provided to an analog transmitter that isolates the band of channels to generate an isolated analog signal and that wirelessly transmits the isolated analog signal over the multiple available channels using one or more antennas.
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Citations
20 Claims
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1. A method comprising:
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modulating, by a first communication system, a first digital signal that encodes a first stream of data with a second digital signal that encodes a second stream of data that is different than the first stream of data, to generate a third digital signal that is adapted to occupy a first range of frequencies during wireless transmission by the first communication system, wherein the second digital signal encodes the second stream of data at a second frequency that is greater than a first frequency at which the first digital signal encodes the first stream of data; generating, by the first communication system, a filtered digital signal by removing or reducing a power level of frequency components of the third digital signal over a second range of frequencies that is to fall within the first range of frequencies during wireless transmission by the first communication system; and providing the filtered digital signal for wireless transmission by the first communication system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable storage device including instructions that, when executed by a computer processor, cause performance of operations that comprise:
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modulating, by a first communication system, a first digital signal that encodes a first stream of data with a second digital signal that encodes a second stream of data that is different than the first stream of data, to generate a third digital signal that is adapted to occupy a first range of frequencies during wireless transmission by the first communication system, wherein the second digital signal encodes the second stream of data at a second frequency that is greater than a first frequency at which the first digital signal encodes the first stream of data; generating, by the first communication system, a filtered digital signal by removing or reducing a power level of frequency components of the third digital signal over a second range of frequencies that is to fall within the first range of frequencies during wireless transmission by the first communication system; and providing the filtered digital signal for wireless transmission by the first communication system. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification