Patent ID: 9386439
Filing Date: 2016-07-05
CPC Classification: H04W

Claim Text:
1. A mobile communications device for performing device-to-device (D2D) communications with a first neighboring mobile communications device, comprising: a wireless module, performing wireless transmissions and receptions; a counter, having a count value and a threshold value; and a controller module, determining whether to broadcast proximity signal via the wireless module according to a comparison result of the count value and the threshold value; wherein the controller module determines to broadcast a first proximity signal to the first neighboring mobile communications device via the wireless module when the count value reaches the threshold value; wherein the count value of the counter is changed according to a second proximity signal broadcasted by the first neighboring mobile communications device; and wherein the mobile communications device and the first neighboring mobile communications device are performing a first service and the count value of the counter is periodically increased by a first predetermined amount when no proximity signal is received and the count value of the counter is increased by a second predetermined amount when receiving the second proximity signal broadcasted by the first neighboring mobile communications device, or