Radio distribution system
View Patent ↗A distributed antenna system for providing extended signal coverage within an indoor area is disclosed. In the system, a master unit receives a first modulated signal from an outdoor base transceiver station, and relays the modulated signal to a remote unit through a distribution network. The master unit also receives a base band signal originating outside the indoor area, and transmits the baseband signal to a micro base transceiver station through the distribution network. The micro base transceiver station modulates the base band signal and transmits the modulated base band signal to a terminal unit through an indoor antenna.
1. A distributed antenna system for providing extended signal coverage within an indoor area comprising:
a master unit;
a remote unit;
a micro base transceiver station;
an indoor antenna;
a distribution network; and
a terminal unit;
wherein the master unit receives a first modulated signal from an outdoor base transceiver station, and relays the modulated signal to said remote unit through the distribution network;
wherein the master unit receives a base band signal originating outside said indoor area, and transmits the baseband signal to the micro base transceiver station through the distribution network;
wherein the micro base transceiver station modulates the base band signal and transmits the modulated base band signal to said terminal unit through the indoor antenna; and
wherein the micro base transceiver station is located within said indoor area and has a lower RF output than an RF output of the outdoor base transceiver station.
2. The system of claim 1 , wherein the micro base transceiver station receives a signal from the terminal unit and perform spectral measurements on said signal from the terminal unit.
3. The system of claim 2 , wherein said spectral measurements include power per channel, integrated power, or power per time.
4. The system of claim 1 , wherein the micro base transceiver station generates locally public safety signals within the indoor area.
5. The system of claim 1 , further comprising a second micro base transceiver station connected to the master unit through the distribution network.
6. The system of claim 5 , wherein the first and second micro base transceiver stations receive a signal from the terminal unit, and based on said signal received by the first and second micro base transceiver stations, the master unit calculates the location of the terminal unit.
7. The system of claim 1 , further comprising a second micro base transceiver station, wherein the master unit and the first and second micro base transceiver stations are connected in a daisy chain configuration.
8. The system of claim 1 , further comprising a second micro base transceiver station, wherein the master unit and the first and second micro base transceiver stations are connected in a closed loop daisy chain configuration.