APPARATUS AND METHOD FOR CELL FREQUENCY CHANGE PROCEDURE SIGNAL TIMING SELECTION

• Main Authors: ALRIKSSON, Peter, LIU, Yusheng, SUGIRTHARAJ, David, ZIRÉN, Mikael
• Format: Patent
• Language: English; French; German
• Published: 18.05.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

A method of a network node for changing a first frequency of a first original cell, wherein one or more wireless communication devices are served by the original cell, and wherein the network node controls a plurality of other cells. The method comprises selecting one or more second frequency of an unlicensed spectrum that the network node should switch the original cell to, determining a second cell on the selected one or more second frequency as target cell and causing the target cell to maintain the same neighbor cell relations as the original cell. The method also comprises moving the one or more wireless communication devices from the original cell to the target cell, turning off the original cell when the one or more wireless communication devices have been moved from the original cell to the target cell and informing one or more neighboring network nodes of the frequency change to the one or more second frequency. Also disclosed is a computer program product, an arrangement and a network node.