Prioritizing radio access technologies for measurement

A method of selecting cells to be measured by a user equipment, the method comprising:

• storing in a computer readable memory a prioritized measurement list in which are represented at least two radio access technologies, each entry in the prioritized measurement list defining a unique combination of frequency layer and radio access technology for a serving cell and for neighbor cells;
• and
• based on at least signal strength or quality of the serving cell, selecting from a neighbor list according to the prioritized measurement list a set of entries for measuring according to a selection rule;
• wherein the selection rule provides:
• for the case in which the at least signal strength or quality of the serving cell is higher than a respective strength or quality threshold, the selected set is a first set;
• and
• for the case in which the at least signal strength or quality of the serving cell is lower than a respective strength or quality threshold, the selected set is a second set of the prioritized measurement list, the second set excluding all frequency layers of the prioritized measurement list belonging to the radio access technology having a highest priority or alternatively a lowest priority, and the second set is different from the first set.

A non-transitory memory storing a computer program that is executable by at least one processor, in which the computer program comprises:

• code for storing in a computer readable memory a prioritized measurement list in which are represented at least two radio access technologies, each entry in the prioritized measurement list defining a unique combination of frequency layer and radio access technology for a serving cell and for neighbor cells;
• and
• code for selecting from a neighbor list according to the prioritized measurement list a set of entries for measuring according to a selection rule, where the selecting is based on at least signal strength or quality of the serving cell;
• wherein the selection rule provides:
• for the case in which the at least signal strength or quality of the serving cell is higher than a respective strength or quality threshold, the selected set is a first set;
• and
• for the case in which the at least signal strength or quality of the serving cell is lower than a respective strength or quality threshold, the selected set is a second set of the prioritized measurement list, the second set excluding all frequency layers of the prioritized measurement list belonging to the radio access technology having a highest priority or alternatively a lowest priority, and the second set is different from the first set.