Method of controlling power of physical layer device of base station in mobile communication system

摘要

A method of controlling power of a physical layer device of a base station in a mobile communication system which is applied to a fifth generation (5G), that is the next generation, mobile communication system and makes it possible to efficiently control the power of physical layer devices managing each beam spot, such as a radio frequency (RF) module and a modem, according to the number of pieces of user equipment (UE) or an amount of traffic processed by the beam spot. The method is applied to a mobile communication system including a plurality of media access control processing units (MACs) corresponding to a plurality of modems on a one-to-one basis and the plurality of modems each connected with one or more RF modules covering beam spots dividing a base station cell.

主权项

1. A method of controlling power of a physical layer device of a base station in a mobile communication system including a plurality of media access control processing units (MACs) corresponding to a plurality of modems on a one-to-one basis and the plurality of modems each connected with one or more radio frequency (RF) modules covering beam spots dividing a base station cell, the method comprising:
operation (a) of checking, by each MAC, information relating to user equipment (UE) traffic managed by the MAC, and determining whether or not a physical layer device managed by the MAC satisfies a power-off condition based on a result of the checking; operation (b) of, when it is determined in operation (a) that an arbitrary MAC satisfies the power-off condition, receiving, information relating to traffic managed by adjacent MACs from the adjacent MACs, and determining whether or not there is an MAC capable of covering based on the received information; and operation (c) of, when it is determined in operation (b) that there is an MAC capable of covering, requesting, by the MAC satisfying the power-off condition, the MAC capable of covering to cover a beam spot managed by the MAC satisfying the power-off condition, and then turning off power of a physical layer device managed by the MAC satisfying the power-off condition, wherein the MAC requested to cover the beam spot in operation (c) adjusts a beam antenna angle of an RF module managed by the MAC requested to cover the beam spot so that a beam antenna of the RF module is directed toward the beam spot for which the request has been made.