Apparatus and method for reducing power consumption in multi antenna system
First Claim
1. A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit, the method comprising:
- identifying a resource assigned by the BS;
determining, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, whether to transition the at least one RF unit to a power saving mode;
if the at least one RF unit is transitioned to the power saving mode, turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit; and
if the at least one RF unit is not transitioned to the power saving mode, maintaining power inputs to power amplifiers of the at least two antenna paths of the at least one RF unit.
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Abstract
An apparatus and method for reducing the power consumption of a Base Station (BS) in a multi antenna system are provided. The method for reducing the power consumption of the BS includes identifying an amount of resources being in use for communication, determining whether to convert at least one Radio Frequency (RF) unit into a power saving mode considering the amount of resources, if converting at least one RF unit into the power saving mode, turning OFF a power supply of a power amplifier of at least one of at least two antenna paths constituting the at least one RF unit converted into the power saving mode, and increasing a gain of at least one antenna path turning ON a power supply such that a transmission Power Spectral Density (PSD) is not changed according to the power saving mode conversion.
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Citations
19 Claims
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1. A method for reducing power consumption of a base station (BS) including at least one radio frequency (RF) unit, the method comprising:
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identifying a resource assigned by the BS; determining, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, whether to transition the at least one RF unit to a power saving mode; if the at least one RF unit is transitioned to the power saving mode, turning off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit; and if the at least one RF unit is not transitioned to the power saving mode, maintaining power inputs to power amplifiers of the at least two antenna paths of the at least one RF unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A base station (BS) apparatus for reducing power consumption in a wireless communication system, the apparatus comprising:
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at least two antennas; and at least one processor configured to; determine, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, whether to transition at least one radio frequency (RF) unit into a power saving mode based on the RBs assigned by the BS for communication, if the at least one processor determines to transition into the power saving mode for the at least one RF unit, turn off a power input to a power amplifier of at least one of at least two antenna paths of the at least one RF unit transitioned into the power saving mode, and if the at least one processor determines not to transition into the power saving mode for the at least one RF unit, maintain power inputs to power amplifiers of the at least two antenna paths of the at least one RF unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification