System for controlling the emissions of a repeater
A system and method for minimizing interference between communication systems in an area. A system includes a repeater that is positioned within the area. The repeater includes a donor antenna communicating between the repeater and a wireless base station, a server antenna communicating between the repeater and a user device, a downlink transmission path to boost and repeat signals received by the donor antenna to the server antenna, and an uplink transmission path to boost and repeat signals received by the server antenna to the donor antenna. The system includes an emissions control system having control inputs that are processed to control a total output power level in a passband of the signal transmissions on the uplink transmission path by the repeater, and/or emissions outside the passband of the signal transmissions on the uplink transmission path by the repeater, based on the one or more processed control inputs.
1 . A system for controlling emissions of a repeater to avoid interference with other communication systems in an area associated with the repeater, the system comprising:
a donor antenna configured for communicating between the repeater and a wireless base station;
a server antenna configured for communicating between the repeater and a user device;
a downlink transmission path configured to boost and repeat signals received by the donor antenna to the server antenna;
an uplink transmission path configured to boost and repeat, signals received by the server antenna to the donor antenna; and
an emissions control system having one or more control inputs and being configured to generate an output to limit in-band or out-of-band emissions of the repeater, and being further configured to combine the two or more control inputs to generate the output to limit in-band or out-of-band emissions of the repeater.
2 . The system in accordance with claim 1 , wherein the emissions control system is configured to control emissions of signal transmissions from the uplink transmission path based on the one or more control inputs.
3 . The system in accordance with claim 1 , wherein the one or more control inputs includes a signal level measured at an input to the repeater within the passband of the repeater.
4 . The system in accordance with claim 1 , wherein the one or more control inputs includes a physical position spaced from the repeater.
5 . The system in accordance with claim 1 , wherein the one or more control inputs includes location information derived from control information transmitted by the wireless base station.
6 . The system in accordance with claim 1 , wherein the one or more control inputs includes location information derived from control information transmitted by a cellular tower and received via the donor antenna.
7 . The system in accordance with claim 6 , wherein the location information includes a location of each of the other communication systems.
8 . The system in accordance with claim 6 , wherein the location information includes a location of the repeater.
9 . The system in accordance with claim 6 , wherein the location information includes a location of the repeater and a location of each of the other communication systems.