Method and device for energy efficient signal transmission in massive multi-antenna wireless communication system

摘要

A method for selecting a Multiple-Input Multiple-Output (MIMO) mode based on energy efficiency and selecting an antenna subset to be used in a communication, in a wireless communication system using a multi-user massive multi-antenna is provided. The method selects an antenna subset capable of minimizing transmission power without using all antennas, based on power consumed by an Radio Frequency (RF) circuit as well as the transmission power. The method further includes selecting a mobile station to which the signal is to be transmitted, selecting a multi-antenna technique based on power consumption of all antennas, selecting an antenna subset to transmit the signal to the mobile station among all the antennas, and transmitting the signal to the mobile station by using the antenna subset.

主权项

1. A method for transmitting a signal by a base station in a wireless communication system, the method comprising:
determining at least one mobile station to which the signal is transmitted; determining a multiple-input multiple-output (MIMO) mode based on a total transmission power consumption of the base station; selecting an antenna subset among a plurality of antennas of the base station based on the determined MIMO mode; and transmitting the signal to the at least one mobile station using the antenna subset, and wherein the total transmission power consumption comprises a signal transmission power and a power consumption of a radio frequency (RF) circuit of the base station.