Motion detector device

A motion detector device comprising:

• a receiver operable to:
• (1) receive via a first channel region a first reference signal transmitted by a first transmission point and (2) receive via a second channel region a second reference signal transmitted by a second transmission point located remotely from the first transmission point, wherein the first channel region includes a region portion that is not included in the second channel region;
• an analyzer configured to:
• analyze the received first reference signal to determine how first certain parameters of the first signal are influenced by the first channel region,
• analyze the received second reference signal to determine how second certain parameters of the second signal are influenced by the second channel region,
• analyze temporal variation of said first certain parameters during a certain time, wherein the temporal variation of said first certain parameters differs based on a movement of the motion detector device and a movement of objects surrounding the motion detector device,
• analyze temporal variation of said second certain parameters during the certain time, wherein the temporal variation of said second certain parameters differs based on a movement of the motion detector device and a movement of objects surrounding the motion detector device,
• determine, based on the analysis of the temporal variations of said first and second certain parameters, whether an object is located in the region portion of the first channel region that is not included in the second channel region, and
• determine, based on the analysis of the temporal variations of said first and second certain parameters, whether the motion detector device has moved within the certain time.