Reducing power consumption in a remote unit of a wireless distribution system (WDS) for intermodulation product suppression
First Claim
1. A remote unit in a wireless distribution system (WDS), comprising:
- a power amplifier circuit in a downlink signal path comprising a plurality of power amplifiers, the power amplifier circuit configured to;
receive a downlink radio frequency (RF) signal in the downlink signal path of the remote unit, the downlink RF signal comprising at least one first downlink RF signal and at least one second downlink RF signal; and
amplify the downlink RF signal to generate an amplified downlink RF signal comprising at least one amplified first downlink RF signal, at least one amplified second downlink RF signal, and at least one intermodulation product caused by power amplification of the at least one first downlink RF signal and the at least one second downlink RF signal;
a measurement circuit coupled to an uplink signal path of the remote unit, the measurement circuit configured to measure a power of a leaked intermodulation product caused by the at least one intermodulation product leaked from the downlink signal path into the uplink signal path; and
a control circuit configured to;
receive the measured power of the leaked intermodulation product from the measurement circuit;
determine a selected number of power amplifiers among the plurality of power amplifiers for reducing the measured power of the leaked intermodulation product to a predetermined threshold; and
control the power amplifier circuit to enable the determined selected number of power amplifiers among the plurality of power amplifiers.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the disclosure relate to reducing power consumption in a remote unit of a wireless distribution system (WDS) for intermodulation product suppression. Intermodulation products generated by a power amplifier circuit can leak from a downlink signal path into an uplink signal path to degrade sensitivity of the uplink signal path in a remote unit. In this regard, the remote unit is configured to measure a power of the leaked intermodulation products and enables a selected number of power amplifiers in the power amplifier circuit for reducing the measured power of the leaked intermodulation products to a predetermined threshold. By enabling only the selected number of power amplifiers based on the measured power of the leaked intermodulation products, it is possible to avoid enabling an excessive number of power amplifiers in the power amplifier circuit, thus helping to reduce power consumption for intermodulation product suppression.
44 Citations
28 Claims
-
1. A remote unit in a wireless distribution system (WDS), comprising:
-
a power amplifier circuit in a downlink signal path comprising a plurality of power amplifiers, the power amplifier circuit configured to; receive a downlink radio frequency (RF) signal in the downlink signal path of the remote unit, the downlink RF signal comprising at least one first downlink RF signal and at least one second downlink RF signal; and amplify the downlink RF signal to generate an amplified downlink RF signal comprising at least one amplified first downlink RF signal, at least one amplified second downlink RF signal, and at least one intermodulation product caused by power amplification of the at least one first downlink RF signal and the at least one second downlink RF signal; a measurement circuit coupled to an uplink signal path of the remote unit, the measurement circuit configured to measure a power of a leaked intermodulation product caused by the at least one intermodulation product leaked from the downlink signal path into the uplink signal path; and a control circuit configured to; receive the measured power of the leaked intermodulation product from the measurement circuit; determine a selected number of power amplifiers among the plurality of power amplifiers for reducing the measured power of the leaked intermodulation product to a predetermined threshold; and control the power amplifier circuit to enable the determined selected number of power amplifiers among the plurality of power amplifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for suppressing a leaked intermodulation product in an uplink signal path in a remote unit in a wireless distribution system (WDS), comprising:
-
measuring a power of a leaked intermodulation product caused by at least one intermodulation product leaked from a downlink signal path into an uplink signal path; determining a selected number of power amplifiers among a plurality of power amplifiers in a power amplifier circuit in the remote unit for reducing the measured power of the leaked intermodulation product to a predetermined threshold; and controlling the power amplifier circuit to enable the determined selected number of power amplifiers among the plurality of power amplifiers. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A wireless distribution system (WDS), comprising:
-
a central unit; and a plurality of remote units configured to; receive a plurality of downlink communications signals from the central unit; and provide a plurality of uplink communications signals to the central unit; wherein one or more remote units among the plurality of remote units each comprises; a power amplifier circuit in a downlink signal path comprising a plurality of power amplifiers, the power amplifier circuit configured to; receive a downlink radio frequency (RF) signal in the downlink signal path of the remote unit, the downlink RF signal comprising at least one first downlink RF signal and at least one second downlink RF signal; and amplify the downlink RF signal to generate an amplified downlink RF signal comprising at least one amplified first downlink RF signal, at least one amplified second downlink RF signal, and at least one intermodulation product caused by power amplification of the at least one first downlink RF signal and the at least one second downlink RF signal; a measurement circuit coupled to an uplink signal path of the remote unit, the measurement circuit configured to measure a power of a leaked intermodulation product caused by the at least one intermodulation product leaked from the downlink signal path into the uplink signal path; and a control circuit configured to; receive the measured power of the leaked intermodulation product from the measurement circuit; determine a selected number of power amplifiers among the plurality of power amplifiers for reducing the measured power of the leaked intermodulation product to a predetermined threshold; and control the power amplifier circuit to enable the determined selected number of power amplifiers among the plurality of power amplifiers. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
Specification