Apparatus and method of setting gain of RF repeater using synchronization signal
AssigneeSK Telecom Co., Ltd.
InventorMoon Hong Kim
Life of this patent
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Abstract
The present disclosure provides an apparatus for setting a gain of a RF repeater includes: a synchronization signal power calculator configured to determine an average received power level of a synchronization signal received over a predetermined number of times as a synchronization signal power; a downlink power calculator configured to calculate a downlink input power according to a power ratio of synchronization signal to data channel signal based on the synchronization signal power; and a downlink gain setting unit configured to calculate a downlink gain by subtracting the downlink input power from a downlink output power determined by hardware specifications to set the downlink gain.
Claims12
An apparatus for setting a gain of a radio frequency (RF) repeater for a time division duplex (TDD) scheme in which downlink signals and uplink signals are transmitted through a same frequency and at separate times, the apparatus comprising:
- a synchronization signal power calculator configured to determine an average received power level of a synchronization signal included in the downlink signals and received over a predetermined number of times as a synchronization signal power;
- a downlink power calculator configured to calculate a downlink input power of the downlink signals according to a power ratio of the synchronization signal to data channel signals included in the downlink signals and based on the synchronization signal power, wherein the downlink input power is a maximum downlink power for the downlink signals when the synchronization signal is broadcasted;
- and
- a downlink gain setting unit configured to calculate a downlink gain by subtracting the downlink input power from a maximum downlink output power determined by hardware specifications for the RF repeater to set the downlink gain.
A method of setting a gain of a radio-frequency (RF) repeater for a time division duplex (TDD) scheme in which downlink signals and uplink signals are transmitted through a same frequency and at separate times, the method comprising:
- determining, by a synchronization signal power calculator, an average received power level of a synchronization signal included in the downlink signals and received over a predetermined number of times as a synchronization signal power;
- calculating, by a downlink power calculator, a downlink input power of the downlink signals according to a power ratio of the synchronization signal to data channel signals included in the downlink signals and based on the synchronization signal power, wherein the downlink input power is a maximum downlink power for the downlink signals when the synchronization signal is broadcasted;
- and
- calculating, by a downlink gain setting unit, a downlink gain by subtracting the downlink input power from a maximum downlink output power determined by hardware specifications for the RF repeater to set the downlink gain.
A non-transitory storage medium for storing instructions that are executed by at least one processor to set a gain of a radio-frequency (RF) repeater for a time division duplex (TDD) scheme in which downlink signals and uplink signals are transmitted through a same frequency and at separate times, wherein the instructions cause the at least one processor to:
- determine an average received power level of a synchronization signal included in the downlink signals and received over a predetermined number of times as a synchronization signal power;
- calculate a downlink input power of the downlink signals according to a power ratio of the synchronization signal to data channel signals included in the downlink signals and based on the synchronization signal power, wherein the downlink input power is a maximum downlink power for the downlink signals when the synchronization signal is broadcasted;
- and
- calculate a downlink gain by subtracting the downlink input power from a maximum downlink output power determined by hardware specifications for the RF repeater.
Dependencies are inferred from the claim text.