Patent ID: 8909216

Claim:
A method comprising observing, at a first user equipment residing in a cell representing a serving cell of said first user equipment, a device-to-device discovery signal that is directly received from a second user equipment residing in another cell representing a non-serving cell of the first user equipment, and on the basis of the observed device-to-device discovery signal, modifying at least one of one or more cell reselection parameters which the first user equipment uses to reselect the serving cell and one or more cell selection parameters which the first user equipment uses to select the non-serving cell, wherein the modifying comprises at least one of: summing a power-related cell reselection parameter referring to the serving cell of the first user equipment with a power-related cell reselection offset parameter referring to the serving cell of the first user equipment and/or summing a quality-related cell reselection parameter referring to the serving cell of the first user equipment with a quality-related cell reselection offset parameter referring to the serving cell of the first user equipment, when the power-related cell reselection parameter referring to the serving cell is larger than a power-related cell reselection threshold and/or the quality-related cell reselection parameter referring to the serving cell is larger than a quality-related cell reselection threshold; and summing a power-related cell selection parameter referring to the non-serving cell of the first user equipment with a power-related cell selection offset parameter referring to the non-serving cell of the first user equipment and/or summing a quality-related cell selection parameter referring to the non-serving cell of the first user equipment with a quality-related cell selection offset parameter referring to the non-serving cell of the user equipment.