Abstract:
The present invention relates to methods and apparatuses for supporting or controlling a small cell on or off procedure. The method may comprise steps of receiving, by the MSC from a Source Small Cell (SSC), a Cell Off Indication message including a Cell State Change Indication parameter indicating a cell status of the SSC; transmitting, by the MSC to the SSC, an Expand Indication message indicating an expanding of the MSC when the Cell State Change Indication parameter indicates a cell off status, the Expanding Indication message including a Time to Start Expand parameter indicating when the MSC starts an expanding of its coverage and an Expand Timer parameter indicating a time period during which the expanding is performed; and starting the expanding of its coverage at a time indicated by the Time to Start Expand parameter during the time period indicated by the Expand Timer.
Abstract:
The present invention relates to a wireless access system and provides methods and apparatuses for controlling and supporting dynamic cell on or off. In an embodiment of the present invention, a method for supporting on or off of a second cell at a first cell in a wireless access system includes receiving a cell on/off state indicator message indicating on or off of the second cell from the second cell, adjusting a handover offset of the second cell, taking into account interference caused by the on or off of the second cell, and transmitting handover offset information about the adjusted handover offset to at least one of the second cell and a first User Equipment (UE).