ANALOG DISTRIBUTED ANTENNA SYSTEMS (DASS) SUPPORTING DISTRIBUTION OF DIGITAL COMMUNICATIONS SIGNALS INTERFACED FROM A DIGITAL SIGNAL SOURCE AND ANALOG RADIO FREQUENCY (RF) COMMUNICATIONS SIGNALS
First Claim
1. A head-end equipment (HEE) signal interface in an analog distributed antenna system (DAS), comprising:
- a downlink communications signal interface configured to receive at least one first downlink analog radio frequency (RF) communications signal and at least one second downlink analog RF communications signal to be distributed to at least one remote unit among a plurality of remote units in the analog DAS over a downlink communications medium;
an uplink communications signal interface configured to provide at least one first uplink analog RF communications signal and at least one second uplink analog RF communications signal received from the at least one remote unit among the plurality of remote units in the analog DAS over an uplink communications medium;
at least one RF signal interface configured to;
receive the at least one first downlink analog RF communications signal from at least one analog RF signal source;
provide the at least one first downlink analog RF communications signal to the downlink communications signal interface;
receive the at least one first uplink analog RF communications signal from the uplink communications signal interface; and
provide the at least one first uplink analog RF communications signal to the at least one analog RF signal source; and
at least one digital signal interface configured to;
receive at least one downlink digital communications signal from at least one digital signal source;
convert the at least one downlink digital communications signal into the at least one second downlink analog RF communications signal;
provide the at least one second downlink analog RF communications signal to the downlink communications signal interface;
receive the at least one second uplink analog RF communications signal from the uplink communications signal interface;
convert the at least one second uplink analog RF communications signal into at least one uplink digital communications signal; and
provide the at least one uplink digital communications signal to the at least one digital signal source.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments disclosed in the detailed description include analog distributed antenna system (DAS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals. Analog RF communications signals received from analog RF signal sources are distributed in the analog DAS without being digitized. The analog DAS is also configured to interface with digital signal sources and compatibly distribute digital communications signals. Hence, a digital signal interface in head-end equipment (HEE) is configured to convert downlink digital communications signals to downlink analog RF communications signals for distribution to a plurality of remote units. The digital signal interface is also configured to convert uplink analog RF communications signals to uplink digital communications signals for distribution to the digital signal source(s). By providing the digital signal interface in the HEE, the analog DAS can be configured to distribute digital communications signals to analog DAS components.
9 Citations
23 Claims
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1. A head-end equipment (HEE) signal interface in an analog distributed antenna system (DAS), comprising:
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a downlink communications signal interface configured to receive at least one first downlink analog radio frequency (RF) communications signal and at least one second downlink analog RF communications signal to be distributed to at least one remote unit among a plurality of remote units in the analog DAS over a downlink communications medium; an uplink communications signal interface configured to provide at least one first uplink analog RF communications signal and at least one second uplink analog RF communications signal received from the at least one remote unit among the plurality of remote units in the analog DAS over an uplink communications medium; at least one RF signal interface configured to; receive the at least one first downlink analog RF communications signal from at least one analog RF signal source; provide the at least one first downlink analog RF communications signal to the downlink communications signal interface; receive the at least one first uplink analog RF communications signal from the uplink communications signal interface; and provide the at least one first uplink analog RF communications signal to the at least one analog RF signal source; and at least one digital signal interface configured to; receive at least one downlink digital communications signal from at least one digital signal source; convert the at least one downlink digital communications signal into the at least one second downlink analog RF communications signal; provide the at least one second downlink analog RF communications signal to the downlink communications signal interface; receive the at least one second uplink analog RF communications signal from the uplink communications signal interface; convert the at least one second uplink analog RF communications signal into at least one uplink digital communications signal; and provide the at least one uplink digital communications signal to the at least one digital signal source. - View Dependent Claims (2, 3, 4, 5)
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6. A method for distributing analog radio frequency (RF) communications signals and digital communications signals in an analog distributed antenna system (DAS), comprising:
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distributing downlink analog RF communications signals and downlink digital communications signals in the analog DAS, comprising; receiving at least one first downlink analog RF communications signal from at least one analog RF signal source; receiving at least one downlink digital communications signal from at least one digital signal source; converting the at least one downlink digital communications signal to at least one second downlink analog RF communications signal; modulating the at least one first downlink analog RF communications signal and the at least one second downlink analog RF communications signal to generate at least one combined downlink analog RF communications signal; and distributing the at least one combined downlink analog RF communications signal to at least one remote unit among a plurality of remote units in the analog DAS over a downlink communications medium; and distributing uplink analog RF communications signals and uplink digital communications signals in the analog DAS, comprising; receiving at least one combined uplink analog RF communications signal from the at least one remote unit among the plurality of remote units in the analog DAS over an uplink communications medium; demodulating the at least one combined uplink analog RF communications signal to generate at least one first uplink analog RF communications signal and at least one second uplink analog RF communications signal; providing the at least one first uplink analog RF communications signal to the at least one analog RF signal source; converting the at least one second uplink analog RF communications signal to at least one uplink digital communications signal; and providing the at least one uplink digital communications signal to the at least one digital signal source. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23-35. -35. (canceled)
Specification