Patent ID: 9219520
Filing Date: 2015-12-22
Classification: H04B,H04L,H04W

Abstract:
1. A distributed antenna system, comprising: a first master host unit having circuitry, the first master host unit configured to communicate digital signals with a first service provider interface, wherein the first master host unit is further configured to communicate a first digitized spectrum in first N-bit words over a first digital communication link of a plurality of digital communication links coupled to the first master host unit; wherein the first master host unit is further configured to interface between the digital signals and the first N-bit words of digitized spectrum; a first hybrid expansion unit having circuitry, the 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 configured 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 configured to convert between the first N-bit words of digitized spectrum and a first set of bands of analog spectrum, wherein the first hybrid expansion unit is further configured to communicate the first set of bands of analog spectrum across a first analog communication link coupled to the first hybrid expansion unit; a first analog remote antenna unit communicatively coupled to the first hybrid expansion unit by the first analog communication link and configured to communicate the first set of bands of analog spectrum across the first analog communication link, the first analog remote antenna unit further configured to communicate first wireless signals over a first air interface using a first antenna; a first switch positioned in a first data path between the first service provider interface and the first antenna, wherein the first switch is selected between a first transmit path and a first receive path in response to a first switching control signal; and wherein at least one of: