SYSTEMS AND METHODS FOR IMPROVED DIGITAL RF TRANSPORT IN DISTRIBUTED ANTENNA SYSTEMS
First Claim
1. A communication device for providing digital transport of signals in a distributed antenna system, the communication device comprising:
- a reception path circuit configured to output digitized radio frequency spectrum at an input sampling rate based on input signals;
a logic device coupled to the reception path circuit and configured to receive digitized radio frequency spectrum at the input sampling rate from the reception path circuit, the logic device further configured to produce a first plurality of sets of digitized baseband data samples at a plurality of sampling rates, each set of digitized baseband data samples corresponding to a distinct spectral region of the analog radio frequency spectrum; and
wherein the logic device is further configured to map each of the first plurality of sets of digitized baseband data samples to a set of timeslots of a serial data stream transport frame.
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Accused Products
Abstract
Systems and methods for improved digital RF transport in a DAS are provided. In one embodiment, a transceiver comprises: a receive path circuit including an RF reception interface coupled to an ADC, the ADC receiving a down-converted analog RF spectrum from the RF reception interface and producing a digitized RF spectrum at an input sampling rate; a logic device receiving the digitized RF spectrum and producing a first set of baseband data samples at a first sampling rate, corresponding to a first spectral region of the analog RF spectrum and a second set of baseband data samples at a second sampling rate, corresponding to a second spectral region of the analog RF spectrum. The logic device maps the first set and second sets of baseband data samples to a respective first set and second set of timeslots of a serial data stream transport frame.
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Citations
36 Claims
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1. A communication device for providing digital transport of signals in a distributed antenna system, the communication device comprising:
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a reception path circuit configured to output digitized radio frequency spectrum at an input sampling rate based on input signals; a logic device coupled to the reception path circuit and configured to receive digitized radio frequency spectrum at the input sampling rate from the reception path circuit, the logic device further configured to produce a first plurality of sets of digitized baseband data samples at a plurality of sampling rates, each set of digitized baseband data samples corresponding to a distinct spectral region of the analog radio frequency spectrum; and wherein the logic device is further configured to map each of the first plurality of sets of digitized baseband data samples to a set of timeslots of a serial data stream transport frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communication system for providing digital transport of signals in a distributed antenna system, the communication device comprising:
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a transmission path circuit configured to output signals based on received digitized radio frequency spectrum; a logic device coupled to the transmission path circuit and configured to receive an input transport frame having a plurality of sets of timeslots, wherein each set of timeslots includes a first plurality of sets of digitized baseband data samples at one of the plurality of sampling rates, the set of digitized baseband data samples for each set of timeslots corresponding to a distinct spectral region of analog radio frequency spectrum; wherein the logic device is configured to generate second plurality of sets of digitized data samples for each set of the timeslots at an output sampling rate; and wherein the logic device sums at least two of the second plurality of sets of digitized data samples to produce a set of output data samples at the output sampling rate. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for providing digital transport of signals in a distributed antenna system, the method comprising:
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multiplexing a plurality of sets of digitized baseband signals into a serial data stream by assigning each set of digitized baseband signals to a corresponding timeslot of a transport frame, wherein each of the plurality of sets of digitized baseband signals corresponds to a distinct spectral region of radio frequency spectrum, wherein each of the plurality of sets of digitized baseband signals has a corresponding sampling rate; and transmitting the transport frame. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A method for providing digital transport of signals in a distributed antenna system, the method comprising:
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receiving an input transport signal comprising a transport frame having a plurality of timeslots; parsing the input transport signal into a plurality of sets of digitized baseband signals based on a timeslot configuration of the input transport signal; converting the plurality of sets of digitized baseband signals from first sampling rates to an output sampling rate; and summing at least two of the plurality of sets of digitized baseband signals to produce a set of output data samples. - View Dependent Claims (32, 33, 34, 35, 36)
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Specification