Extracting sub-bands from signals in a frequency domain
First Claim
1. A unit comprising:
- circuitry configured to;
receive a downlink signal;
sub-divide the downlink signal into a sub-divided downlink signal having downlink signal components in a time domain, each of the downlink signal components corresponding to a respective sub-band;
determine that at least one downlink signal component of the downlink signal components corresponds to at least one sub-band having data to be transmitted via a distributed antenna system;
generate a transformed downlink signal representing the downlink signal in a frequency domain by performing a frequency transform on the downlink signal;
determine that the at least one sub-band of the transformed downlink signal includes the data to be transmitted;
extract the at least one sub-band from the transformed downlink signal at least in part by being configured to provide data for at least one portion of the transformed downlink signal in the frequency domain that corresponds to the at least one sub-band to the at least one remote antenna unit of the distributed antenna system.
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Accused Products
Abstract
A unit includes circuitry configured to: receive a downlink signal; sub-divide the downlink signal into a sub-divided downlink signal having downlink signal components in a time domain, each downlink signal component corresponding to a respective sub-band; determine that at least one downlink signal component corresponds to at least one sub-band having data to be transmitted via a distributed antenna system; generate a transformed downlink signal representing the downlink signal in a frequency domain by performing a frequency transform on the downlink signal; determine that the at least one sub-band of the transformed downlink signal includes the data to be transmitted; extract the at least one sub-band from the transformed downlink signal at least in part by providing data for at least one portion of the transformed downlink signal in the frequency domain that corresponds to the at least one sub-band to the at least one remote antenna unit.
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Citations
20 Claims
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1. A unit comprising:
circuitry configured to; receive a downlink signal; sub-divide the downlink signal into a sub-divided downlink signal having downlink signal components in a time domain, each of the downlink signal components corresponding to a respective sub-band; determine that at least one downlink signal component of the downlink signal components corresponds to at least one sub-band having data to be transmitted via a distributed antenna system; generate a transformed downlink signal representing the downlink signal in a frequency domain by performing a frequency transform on the downlink signal; determine that the at least one sub-band of the transformed downlink signal includes the data to be transmitted; extract the at least one sub-band from the transformed downlink signal at least in part by being configured to provide data for at least one portion of the transformed downlink signal in the frequency domain that corresponds to the at least one sub-band to the at least one remote antenna unit of the distributed antenna system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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sub-dividing a downlink signal into a sub-divided downlink signal having downlink signal components in a time domain, each of the downlink signal components corresponding to a respective sub-band; determining that at least one component of the plurality of downlink signal components corresponds to at least one sub-band having data to be transmitted via a distributed antenna system; generating a transformed downlink signal representing the downlink signal in a frequency domain by performing a frequency transform on the downlink signal; determining that the at least one sub-band of the transformed downlink signal includes the data to be transmitted; extracting the at least one sub-band from the transformed downlink signal at least in part by providing data for at least a portion of the transformed downlink signal in the frequency domain that corresponds to the at least one sub-band to at least one remote antenna unit of the distributed antenna system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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a first unit configured to; receive a downlink signal; sub-divide the downlink signal into a sub-divided downlink signal having downlink signal components in a time domain, each of the downlink signal components corresponding to a respective sub-band; determine that at least one component of the downlink signal components corresponds to at least one sub-band having data to be transmitted via the distributed antenna system; generate a transformed downlink signal representing the downlink signal in a frequency domain by performing a frequency transform on the downlink signal; determine that the at least one sub-band of the transformed downlink signal includes the data to be transmitted; extract the at least one sub-band from the transformed downlink signal at least in part by being configured to provide data for at least one portion of the transformed downlink signal in the frequency domain that corresponds to the at least one sub-band to a second unit of the system; and the second unit configured to; receive the at least one sub-band extracted from the transformed downlink signal from the first unit; generate a radio frequency signal based on the at least one sub-band, and transmit the radio frequency signal to a terminal device. - View Dependent Claims (18, 19, 20)
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Specification