Reducing energy consumption in a basestation by shutting off secondary pilot transmission in absence of MIMO users

摘要

A method for reducing energy consumption of a base station is described. A first pilot channel is transmitted via a first antenna using a first downlink power amplifier. A second pilot channel is transmitted via a second antenna using a second downlink power amplifier. It is determined that no multiple-input and multiple-output users are in a cell corresponding to the base station. The second pilot channel is shut off.

主权项

1. A method for reducing energy consumption of a base station, comprising:
receiving, at the base station, instructions from a radio network controller (RNC) to reduce energy consumption, wherein based on the instructions, the base station performs:
transmitting a first pilot channel via a first antenna using a first downlink power amplifier;transmitting a second pilot channel via a second antenna using a second downlink power amplifier;determining that no multiple-input and multiple-output users are in a cell corresponding to the base station; andshutting off the second pilot channel and the second downlink power amplifier; andtransmitting only the first pilot channel via the first antenna using the first downlink power amplifier in response to shutting off the second pilot channel and the second downlink power amplifier.