Apparatus and method for configuring and managing quality of service of radio bearer for direct communication in wireless communication system

A first user equipment (UE) in a wireless communication system, the first UE comprising:

• a transceiver;
• and
• a controller coupled with the transceiver, and configured to:
• transmit, to a base station (BS), a sidelink UE information message including quality of service (QOS) information for a sidelink (SL) communication,
• obtain sidelink radio bearer (SLRB) configuration information,
• transmit, to a second UE via a radio resource control (RRC) signaling, an SLRB configuration for the SL communication, and
• perform the SL communication with the second UE based on the SLRB configuration information,
• wherein the QoS information for the SL communication includes a 5G QOS identifier (5QI) value and range information indicating a minimum communication range, and
• wherein the SLRB configuration information includes information on a discard timer and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

A method performed by a base station (BS) in a wireless communication system, the method comprising:

• receiving, from a user equipment (UE) via a radio resource control (RRC) message or a system information message, a sidelink UE information message including quality of service (QOS) information for a sidelink (SL) communication;
• and
• transmitting, to the UE, sidelink radio bearer (SLRB) configuration information,
• wherein the QoS information for the SL communication includes a 5G QoS identifier (5QI) value and range information indicating a minimum communication range, and
• wherein the SLRB configuration information includes information on a discard timer and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.

A base station (BS) in a wireless communication system, the BS comprising:

• a transceiver;
• and
• a controller coupled with the transceiver, and configured to:
• receive, from a user equipment (UE) via a radio resource control (RRC) message or a system information message, a sidelink (SL) UE information message including quality of service (QOS) information for a sidelink (SL) communication, and
• transmit, to the UE, sidelink radio bearer (SLRB) configuration information,
• wherein the QoS information for the SL communication includes a 5G QoS identifier (5QI) value and range information indicating a minimum communication range, and
• wherein the SLRB configuration information includes information on a discard timer, and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size.