DISTRIBUTED ANTENNA SYSTEM USING TIME DIVISION DUPLEXING SCHEME
First Claim
1. A communication system, comprising:
- a first master host unit adapted to communicate first wireless spectrum with a first service provider interface using a first set of bands of analog spectrum;
a plurality of digital communication links coupled to the first master host unit, wherein the first master host unit is further adapted to communicate a first digitized spectrum in first N-bit words over a first digital communication link of the plurality of digital communication links;
wherein the first master host unit is further adapted to convert between the first set of bands of analog spectrum and the first N-bit words of digitized spectrum;
a first hybrid expansion unit communicatively coupled to the first master host unit by the first digital communication link of the plurality of digital communication links and adapted to communicate the first N-bit words of digitized spectrum with the first master host unit across the first digital communication link, the first hybrid expansion unit further adapted to convert between the first N-bit words of digitized spectrum and a second set of bands of analog spectrum;
a first analog communication link coupled to the first hybrid expansion unit, wherein the first hybrid expansion unit is further adapted to communicate the second set of bands of analog spectrum across the first analog communication link;
a first analog remote antenna unit communicatively coupled to the first hybrid expansion unit by the first analog communication link and adapted to communicate the second set of bands of analog spectrum across the first analog communication link, the first analog remote antenna unit further adapted to communicate first wireless signals over a first air interface using a first antenna; and
a first switch in a first data path between the first service provider interface and the first antenna, wherein the first switch is selected between a transmit path and a receive path in response to a first switching control signal.
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Accused Products
Abstract
A communication system includes a master host unit that communicates wireless spectrum with a service provider interface using analog spectrum. Master host unit communicates digitized spectrum in N-bit words over a digital communication link. Master host unit converts between analog spectrum and N-bit words of digitized spectrum. Communication system includes hybrid expansion unit coupled to master host unit by digital communication link. Hybrid expansion unit communicates N-bit words of digitized spectrum with master host unit across digital communication link. Hybrid expansion unit converts between N-bit words of digitized spectrum and analog spectrum. Hybrid expansion unit communicates analog spectrum across analog communication link to analog remote antenna unit. Analog remote antenna unit communicates wireless signals using first antenna. Communication system further includes a switch in a data path between service provider interface and antenna. The switch selects between transmit path and receive path in response to switching control signal.
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Citations
72 Claims
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1. A communication system, comprising:
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a first master host unit adapted to communicate first wireless spectrum with a first service provider interface using a first set of bands of analog spectrum; a plurality of digital communication links coupled to the first master host unit, wherein the first master host unit is further adapted to communicate a first digitized spectrum in first N-bit words over a first digital communication link of the plurality of digital communication links; wherein the first master host unit is further adapted to convert between the first set of bands of analog spectrum and the first N-bit words of digitized spectrum; a first hybrid expansion unit communicatively coupled to the first master host unit by the first digital communication link of the plurality of digital communication links and adapted to communicate the first N-bit words of digitized spectrum with the first master host unit across the first digital communication link, the first hybrid expansion unit further adapted to convert between the first N-bit words of digitized spectrum and a second set of bands of analog spectrum; a first analog communication link coupled to the first hybrid expansion unit, wherein the first hybrid expansion unit is further adapted to communicate the second set of bands of analog spectrum across the first analog communication link; a first analog remote antenna unit communicatively coupled to the first hybrid expansion unit by the first analog communication link and adapted to communicate the second set of bands of analog spectrum across the first analog communication link, the first analog remote antenna unit further adapted to communicate first wireless signals over a first air interface using a first antenna; and a first switch in a first data path between the first service provider interface and the first antenna, wherein the first switch is selected between a transmit path and a receive path in response to a first switching control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method comprising:
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converting first wireless spectrum between a first set of bands of analog spectrum and first N-bit words of digitized spectrum at a first master host unit; transporting the first N-bit words of digitized spectrum on a first digital medium between the first master host unit and a first hybrid expansion unit; converting first wireless spectrum between the first N-bit words of digitized spectrum and a second set of bands of analog spectrum at the first hybrid expansion unit; transporting the second set of bands of analog spectrum on a first analog medium between the first hybrid expansion unit and a first analog remote antenna unit; switching the first analog remote antenna unit between a transmit mode and a receive mode based on a first switching control signal; when the first analog remote unit is in the transmit mode, transmitting first wireless spectrum at the first analog remote antenna unit using a first antenna; and when the first analog remote antenna unit is in the receive mode, receiving the second wireless spectrum at the first analog remote antenna unit using a second antenna. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A hybrid expansion unit comprising:
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at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device; at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device; wherein the hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum; and wherein the hybrid expansion unit is further adapted to communicate a switching control signal to the downstream device, wherein the switching control signal indicates when a switch should be selected between a transmitter and a receiver. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69)
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70. A method comprising:
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transporting a first set of N-bit words of digitized spectrum with an upstream device; transporting a first set of bands of analog spectrum with a downstream device; converting between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum; and communicating a switching control signal to a downstream device, wherein the switching control signal indicates when a switch should be selected between a transmit path and a receive path. - View Dependent Claims (71, 72)
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Specification