Method for determining a position, a positioning system, and an electronic device

An electronic device comprising:

• a positioning receiver;
• means for selecting satellites to be used for positioning in a positioning system which includes information on the orbits of the satellites;
• means for selecting at least one satellite to be searched for;
• and
• means for searching for at least one selected satellite by finding out if the signal transmitted by the selected satellite is detected,
• wherein the electronic device further comprises means for performing at least a first selection step, and means for performing one or more continued selection steps,
• wherein the electronic device is arranged to perform a searching step after each of said first selection step and said one or more continued selection steps to examine whether the signal transmitted by at least one selected satellite is detected,
• wherein during the continued selection step, the selection of at least one satellite is arranged to be performed at least partly based on a finding about detectability in the searching step previously taken.

A positioning system comprising:

• a positioning receiver;
• means for selecting the satellites to be used for positioning;
• information on the orbits of the satellites;
• means for selecting at least one satellite to be searched;
• and
• means for searching at least one selected satellite by finding out if the signal transmitted by the selected satellite is detected,
• wherein the positioning system further comprises means for performing at least a first selection step, and means for performing one or more continued selection steps,
• wherein the searching means is arranged to perform a searching step, after each of said first selection step and said one or more continued selection steps, to examine whether the signal transmitted by at least one selected satellite is detected,
• wherein the selection means is arranged to select, during the continued selection step, at least one satellite that is selected at least partly based on a finding about detectability in the searching step previously taken.