Apparatus and method for reducing power consumption in multi antenna system
First Claim
1. A method for operating a base station (BS) including a radio frequency (RF) unit, the method comprising:
- transmitting signals by using a first antenna path and a second antenna path in the RF unit;
determining, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, to transition the RF unit into a power saving mode;
deactivating a first power amplifier of the first antenna path; and
transmitting signals by using the second antenna path.
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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.
22 Citations
16 Claims
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1. A method for operating a base station (BS) including a radio frequency (RF) unit, the method comprising:
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transmitting signals by using a first antenna path and a second antenna path in the RF unit; determining, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, to transition the RF unit into a power saving mode; deactivating a first power amplifier of the first antenna path; and transmitting signals by using the second antenna path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A base station (BS) in a wireless communication system, the base station comprising:
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a radio frequency (RF) unit including a first antenna path and a second antenna path; and at least one processor coupled to the RF unit and configured to; transmit signals by using the first antenna path and the second antenna path in the RF unit; determine, by comparing a number of resource blocks (RBs) assigned by the BS for communication with a reference value, to transition the RF unit into a power saving mode; deactivate a first power amplifier of the first antenna path; and transmit signals by using the second antenna path. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification