Systems and methods for noise floor optimization in distributed antenna system with direct digital interface to base station
First Claim
1. A signal interface unit for a distributed antenna system, comprising:
- a channelized radio carrier interface configured to communicate an uplink channelized radio carrier for a radio frequency carrier to a channelized radio carrier base station interface;
an antenna side interface configured to receive an uplink digitized radio frequency signal from the distributed antenna system communicatively coupled to the antenna side interface; and
a signal conversion module communicatively coupled between the channelized radio carrier interface and the antenna side interface and configured to convert between the uplink digitized radio frequency signal and the uplink channelized radio carrier at least in part by adjusting at least one uplink attribute of the uplink digitized radio frequency signal received from the distributed antenna system to comply with requirements of the channelized radio carrier base station interface to cause the distributed antenna system to appear as a remote radio head to the channelized radio carrier interface.
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Accused Products
Abstract
A signal interface unit for a distributed antenna system includes a channelized radio carrier interface configured to communicate an uplink channelized radio carrier for a radio frequency carrier to a channelized radio carrier base station interface; an antenna side interface configured to receive an uplink digitized radio frequency signal from the distributed antenna system communicatively coupled to the antenna side interface; and a signal conversion module communicatively coupled between the channelized radio carrier interface and the antenna side interface and configured to convert between the uplink digitized radio frequency signal and the uplink channelized radio carrier at least in part by adjusting at least one uplink attribute of the uplink digitized radio frequency signal received from the distributed antenna system to comply with requirements of the channelized radio carrier base station interface.
124 Citations
72 Claims
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1. A signal interface unit for a distributed antenna system, comprising:
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a channelized radio carrier interface configured to communicate an uplink channelized radio carrier for a radio frequency carrier to a channelized radio carrier base station interface; an antenna side interface configured to receive an uplink digitized radio frequency signal from the distributed antenna system communicatively coupled to the antenna side interface; and a signal conversion module communicatively coupled between the channelized radio carrier interface and the antenna side interface and configured to convert between the uplink digitized radio frequency signal and the uplink channelized radio carrier at least in part by adjusting at least one uplink attribute of the uplink digitized radio frequency signal received from the distributed antenna system to comply with requirements of the channelized radio carrier base station interface to cause the distributed antenna system to appear as a remote radio head to the channelized radio carrier interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A signal interface unit for an antenna system, comprising:
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an external device interface configured to communicate a first uplink signal to an external device; an antenna side interface configured to receive a second uplink signal from an antenna unit communicatively coupled to the antenna side interface; a signal conversion module communicatively coupled between the external device interface and the antenna side interface and configured to convert from the second uplink signal to the first uplink signal at least in part by digitally adjusting at least one uplink attribute of the second uplink signal received from the antenna side interface to comply with requirements of the external device to cause the antenna system to appear as a remote radio head to the external device. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for making a distributed antenna system appear as a radio head in a digital radio system, comprising:
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receiving an uplink digitized radio frequency signal for a radio frequency carrier from the distributed antenna system at a signal interface unit; converting the uplink digitized radio frequency signal to an uplink channelized radio carrier at the signal interface unit at least in part by adjusting at least one uplink attribute of the uplink digitized radio frequency signal received from the distributed antenna system to comply with requirements of a channelized radio carrier base station interface communicatively coupled to the signal interface unit to cause the distributed antenna system to appear as a remote radio head to the channelized radio carrier base station interface; communicating the uplink channelized radio carrier for the radio frequency carrier from the signal interface unit to the channelized radio carrier base station interface. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method of conforming uplink signals to requirements of an external device, comprising:
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receiving a first uplink signal from an antenna unit at an antenna side interface of a signal interface unit; converting the first uplink signal to a second uplink signal at the signal interface unit at least in part by adjusting at least one uplink attribute of the first uplink signal received from the antenna unit to comply with requirements of an external device communicatively coupled to the signal interface unit to cause the signal interface unit and the antenna unit to appear as a remote radio head to the external device; and communicating the second uplink signal from an external device interface of the signal interface unit to the external device. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification