Method for controlling device-to-device discovery and related device

A method for controlling device-to-device discovery, wherein the method comprises:

• obtaining, by a mobility management entity (MME), N first relay function parameter sets of N user equipment supporting a relay function, wherein N is a positive integer;
• obtaining, by the MME, a second relay function parameter set of a remote user equipment;
• obtaining, by the MME, a third relay function parameter set of the remote user equipment;
• incorporating, by the MME, the third relay function parameter set into the second relay function parameter set to update the second relay function parameter set to obtain a new second relay function parameter set, wherein the N first relay function parameter sets comprise the new second relay function parameter set;
• determining, by the MME for the remote user equipment, at least one of the N user equipment supporting the N first relay function parameter sets, wherein the N first relay function parameter sets of the at least one of the N user equipment supporting the N first relay function parameter sets and the new second relay function parameter set satisfy a preset matching relationship;
• and
• sending, by the MME, a third notification message instructing a base station to send a first notification message to the at least one of the N user equipment supporting the N first relay function parameter sets, wherein the first notification message triggers the at least one of the N user equipment to initiate the device-to-device discovery.

A method for controlling device-to-device discovery, wherein the method comprises:

• obtaining, by a mobility management entity (MME), N first relay function parameter sets of N user equipment supporting a relay function, wherein N is a positive integer;
• obtaining, by the MME, a Non Access Stratum (NAS) message, wherein the NAS message comprises a second relay function parameter set of a remote user equipment;
• determining, by the MME for the remote user equipment, at least one of the N user equipment supporting the N first relay function parameter sets, wherein the N first relay function parameter sets of the at least one of the N user equipment supporting the N first relay function parameter sets and the second relay function parameter set satisfy a preset matching relationship;
• and
• sending, by the MME, a first notification message to the at least one of the N user equipment supporting the N first relay function parameter sets wherein the first notification message triggers the at least one of the N user equipment supporting the N first relay function parameter sets to initiate the device-to-device discovery.