公开(公告)号：US10285138B2

公开(公告)日：2019-05-07

申请号：US15364886

申请日：2016-11-30

Applicant: FUJITSU CONNECTED TECHNOLOGIES LIMITED

Inventor： Mythri Hunukumbure

IPC: H04W52/18 ,  H04W52/02 ,  H04W24/10 ,  H04W48/10 ,  H04W52/16 ,  H02J3/38 ,  H02J9/00 ,  H04L5/00 ,  H04W48/20 ,  H04W52/58 ,  H04W64/00 ,  H04W74/08

Abstract: A method of waking up a small cell base station from a sleep mode, the method includes: by the mobile station: determining, based on stored location information indicating a location of the small cell base station and on a monitored current location of the mobile station, that the mobile station is in a coverage area of the small cell base station, determining, from serving cell information and a neighbor cell list, that the small cell base station is in the sleep mode, changing a transmission characteristic of the standard access signal so as to increase its transmission energy, in response to the determinations, and transmitting the changed access signal; and by the small cell base station: harvesting energy from the changed access signal that is transmitted by the mobile station, using a passive energy harvesting sensor, the harvested energy triggering a wake-up procedure in the small cell base station.