Mitigation of radio-frequency interference at a remote radio head
First Claim
1. One or more non-transitory computer-readable media having computer executable instructions embodied thereon that, when executed, perform a method of mitigating radio-frequency (RF) interference at a remote radio head (RRH) of a base station due to non-linearity in one or more of the RRH components including at least a power amplifier, wherein the power amplifier is configured to operate in an at least an active mode and a saturation mode, the method comprising:
- receiving RF-interference indicators from a plurality of user devices communicating with the base station;
using the RF-interference indicators;
adjusting the power amplifier such that the power amplifier operates in the active mode when the RF-interference indicators indicate that RF interference at the RRH is below a predefined threshold; and
adjusting the power amplifier such that the power amplifier operates in the saturation mode when the RF-interference indicators indicate that RF interference at the RRH is above the predefined threshold.
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Accused Products
Abstract
A method, system, and medium are provided for mitigating radio-frequency (RF) interference at a remote radio head (RRH) of a base station due to non-linearity in at least one of the RRH components. RF-interference indicators received from one or more user devices are monitored. When the RF-interference indicators indicate that RF interference at the RRH is above a predefined threshold, then a power amplifier associated with the RRH is adjusted to operate in a saturation mode thereby reducing the generation of inter-modulation products and reducing RF interference at the RRH. When the RF-interference indicators indicate that RF interference at the RRH is below the predefined threshold, then the power amplifier is adjusted to operate in an active mode thereby optimizing signal gain.
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Citations
20 Claims
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1. One or more non-transitory computer-readable media having computer executable instructions embodied thereon that, when executed, perform a method of mitigating radio-frequency (RF) interference at a remote radio head (RRH) of a base station due to non-linearity in one or more of the RRH components including at least a power amplifier, wherein the power amplifier is configured to operate in an at least an active mode and a saturation mode, the method comprising:
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receiving RF-interference indicators from a plurality of user devices communicating with the base station; using the RF-interference indicators; adjusting the power amplifier such that the power amplifier operates in the active mode when the RF-interference indicators indicate that RF interference at the RRH is below a predefined threshold; and adjusting the power amplifier such that the power amplifier operates in the saturation mode when the RF-interference indicators indicate that RF interference at the RRH is above the predefined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A remote radio head (RRH) system of a base station, the RRH system comprising:
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a first non-linear power amplifier; a second linear power amplifier; and a logic unit programmably coupled to both the first non-linear power amplifier and the second linear power amplifier, the logic unit adapted to; monitor radio-frequency (RF) interference at the RRH, activate the first non-linear power amplifier when the RF interference is below a predefined threshold, and activate the first non-linear power amplifier and the second linear power amplifier when the RF interference is above the predefined threshold. - View Dependent Claims (9, 10, 11, 12)
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13. A computerized method carried out by at least one server having at least one processor for mitigating radio-frequency (RF) interference at a remote radio head (RRH) system of a base station due to non-linearity in at least one of the RRH components, the method comprising:
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monitoring RF-interference indicators received from a plurality of user devices communicating with the base station; determining that the RF-interference indicators indicate at least one of;
1) that RF interference at the RRH system is above a predefined threshold, or
2) that RF interference at the RRH system is below the predefined threshold, wherein;when the RF interference is above the predefined threshold, adjusting the at least one of the RRH components such that the at least one component is operating in a saturation mode; and when the RF interference is below the predefined threshold, adjusting the at least one component such that the at least one component is operating in an active mode. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification