Telefonaktiebolaget LM Ericsson (publ)
Energy control devices and methods for energy management in a transmission site of a wireless communication network

Abstract:

According to one aspect, a method and an energy control device are provided for estimating electricity consumption during one or more transmission intervals of a transmission site or part of a transmission site. Said site comprises a scheduler for scheduling assignments, and a set of radio transmitters having known radio efficiency .eta..sub.r. Said method comprises a step of estimating scheduled transmission electricity consumption E.sub.TOT based on a quotient of a sum P.sub.sch,sum of scheduled radio transmission powers P.sub.sch and the radio efficiency .eta..sub.r. An energy management control method based on information from the scheduler to control the alternative energy sources on site is provided, wherein said information is depending on radio traffic load. The energy control method for every TTI for efficient and effective control that is based on the real traffic situation.