Method and apparatus for controlling relay traffic in wireless communication system supporting d2d communication

An apparatus in a base station (BS) in a wireless communication system supporting device-to-device (D2D) communication, the apparatus comprising:

• a transmitter;
• and
• a controller configured to:
• determine whether received traffic is relay traffic,
• identify a port number in each cluster of the relay traffic if the received traffic is relay traffic, and
• determine a priority of the relay traffic depending on the port number;
• and
• transmit a packet based on the determined priority to a relay user equipment (UE).

A method of a relay user equipment (UE) in a wireless communication system supporting device-to-device (D2D) communication, the method comprising:

• receiving a packet from a base station (BS);
• determining whether the packet is a D2D-related packet;
• and
• transmitting the packet to a UE supporting D2D if the packet is a D2D-related packet,
• wherein a priority of the packet is determined depending on a port number.

An apparatus for controlling relay traffic in a relay user equipment (UE) in a wireless communication system supporting device-to-device (D2D) communication, the apparatus comprising:

• a transmitter:
• and
• a controller configured to:
• to receive a packet from a base station (BS);
• to determine whether the packet is a D2D-related packet;
• and
• transmit the packet to a UE supporting D2D if the packet is a D2D-related packet,
• wherein a priority of the packet is determined depending on a port number.

A method of a base station (BS) in a wireless communication system supporting device-to-device (D2D) communication, the method comprising:

• creating a radio bearer;
• identifying a logical channel identifier (LCID) of a packet if the packet is received from a relay user equipment (UE);
• and
• mapping the LCID with a target evolved packet system (EPS) bearer.