Cell Change in a Wireless Communication System

A wireless device configured for use in a wireless communication system, the wireless device comprising:

• processing circuitry and a memory, the memory containing instructions executable by the processing circuitry whereby the wireless device is configured to:
• obtain, for each of one or more cells, information derived from a measure of dispersion of the values of received signal measurements respectively performed by the wireless device on different transmit beams of the cell;
• use the obtained information to select, or to assist network equipment to select, from the one or more cells a target cell to which the wireless device is to change;
• and
• perform a cell change to the selected target cell.

Network equipment configured for use in a wireless communication system, the network equipment comprising:

• processing circuitry and a memory, the memory containing instructions executable by the processing circuitry whereby the network equipment is configured to:
• obtain, for each of one or more cells, information derived from a measure of dispersion of the values of received signal measurements respectively performed by the wireless device on different transmit beams of the cell;
• use the obtained information to select from the one or more cells a target cell to which the wireless device is to change;
• and
• command the wireless device to perform a cell change to the selected target cell.

A method performed by a wireless device configured for use in a wireless communication system, the method comprising:

• obtaining, for each of one or more cells, information derived from a measure of dispersion of the values of received signal measurements respectively performed by the wireless device on different transmit beams of the cell;
• using the obtained information to select, or to assist network equipment to select, from the one or more cells a target cell to which the wireless device is to change;
• and
• performing a cell change to the selected target cell.

A method performed by network equipment configured for use in a wireless communication system, the method comprising:

• obtaining, for each of one or more cells, information derived from a measure of dispersion of the values of received signal measurements respectively performed by the wireless device on different transmit beams of the cell;
• using the obtained information to select from the one or more cells a target cell to which the wireless device is to change;
• and
• commanding the wireless device to perform a cell change to the selected target cell.