DEVICE TO DEVICE DISCOVERY METHOD FOR USER EQUIPMENT AND NETWORK ENTITY AND USER EQUIPMENT AND NETWORK ENTITY USING THE SAME

摘要

This disclosure is directed to a D2D discovery method applicable to a UE and a network entity and a UE and a network entity using the same. In one of the exemplary embodiments, this disclosure is directed to a D2D discovery method that is applicable to a network entity and includes at least but not limited to receiving a first cancel proximity request comprising a network level discoverer identifier (ID), an application ID, and an application layer discoveree ID, transmitting a second cancel proximity request comprising the network level discoverer ID and a network level discoveree ID in response to receiving the first cancel proximity request, receiving a first acknowledgement signal that corresponds to the second cancel proximity request in response to transmitting the second cancel proximity request, and transmitting a second acknowledgement signal that corresponds to the first cancel proximity request in response to receiving the first acknowledgement signal.

主权项

1. A device to device (D2D) discovery method applicable to a user equipment (UE) comprising:
initiating a D2D discovery process with a first window value, wherein the first window value stands for a time window and is a positive number; transmitting a first proximity discovery request comprising the first window value; detecting a cancellation event to cancel the D2D discovery process in response to transmitting the first proximity discovery request; stopping the D2D discovery process if the first window value decreases to a specific threshold in response to detecting the cancellation event; and transmitting a first cancel proximity discovery request to cancel the D2D discovery process in response to receiving the cancellation event if another proximity discovery request does not exist within the UE.