Apparatus and method for configuring and managing quality of service of radio bearer for direct communication in wireless communication system
The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). A method for operating a user equipment in a wireless communication system includes determining service information required by a vehicle to everything (V2X) application and determining a V2X transmission mode. The method also includes determining quality of service (QoS) information required by the V2X application and acquiring sidelink radio bearer configuration information corresponding to the QoS information. The method further includes transmitting and receiving a V2X packet of direct communication using the acquired sidelink radio bearer configuration information.
1. A method performed by a user equipment (UE) in a wireless communication system, comprising:
identifying quality of service (QoS) information for a sidelink (SL) application, wherein the QoS information includes a 5QI value and range information indicating a minimum communication range;
transmitting, to a base station (BS), sidelink UE information message including the QoS information;
receiving, from the BS, sidelink radio bearer (SLRB) configuration information; and
performing a sidelink communication based on the SLRB configuration information, wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window,
wherein the SLRB configuration information includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), information on a bucket size duration (BSD), information on a discard timer, and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size, and
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate.
2. The method of claim 1 , wherein the SLRB configuration information is received via a radio resource control (RRC) dedicated message or system information block (SIB).
3. The method of claim 1 , wherein the sidelink UE information message further includes at least one of reliability parameter or pro-se per packet priority parameter.
4. The method of claim 1 , wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.
5. The method of claim 1 , wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM, or sequence number (SN)-field length.
6. The method of claim 1 , further comprising:
selecting one of unicast, groupcast, or broadcast as a mode for transmitting a service packet required by the SL application.
7. A user equipment (UE) in a wireless communication system, comprising:
at least one transceiver; and
at least one processor coupled to the at least one transceiver,
wherein the at least one processor is configured to:
identify quality of service (QoS) information for a sidelink (SL) application, wherein the QoS information includes a 5QI value and range information indicating a minimum communication range;
transmit, to a base station (BS), sidelink UE information message including the QoS information;
receive, from the BS, sidelink radio bearer (SLRB) configuration information; and
perform a sidelink communication based on the SLRB configuration information, wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window,
wherein the SLRB configuration information includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), information on a bucket size duration (BSD), information on a discard timer, and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size, and
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate.
8. The UE of claim 7 , wherein the SLRB configuration information is received via a radio resource control (RRC) dedicated message or system information block (SIB).
9. The UE of claim 7 , wherein the sidelink UE information message further includes at least one of reliability parameter or pro-se per packet priority parameter.
10. The UE of claim 7 , wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.
11. The UE of claim 7 , wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM, or sequence number (SN)-field length.
12. The UE of claim 7 , wherein the at least one processor is further configured to:
select one of unicast, groupcast, or broadcast as a mode for transmitting a service packet required by the SL application.
13. A base station (BS) in a wireless communication system comprising:
at least one transceiver; and
at least one processor coupled to the at least one transceiver,
wherein the at least one processor is configured to:
receive, from a user equipment (UE), sidelink (SL) UE information message including quality of service (QoS) information, wherein the QoS information includes a 5QI value and range information indicating a minimum communication range; and
transmit, to the UE, sidelink radio bearer (SLRB) configuration information,
wherein the 5QI value indicates a default priority level, packet delay budget, packet error rate, default maximum data burst volume and default averaging window,
wherein the SLRB configuration information includes information on a logical channel (LCH) priority, information on a prioritized bit rate (PBR), information on a bucket size duration (BSD), information on a discard timer, and information on a packet data convergence protocol (PDCP)-sequence number (SN)-size, and
wherein the QoS information further includes at least one of information on a maximum end-to-end latency, information on a reliability, or information on a data rate.
14. The BS of claim 13 , wherein the SLRB configuration information is received via a radio resource control (RRC) dedicated message or system information block (SIB).
15. The BS of claim 13 , wherein the SL UE information message further includes at least one of reliability parameter or pro-se per packet priority parameter.
16. The BS of claim 13 , wherein the SLRB configuration information further includes at least one of information on a subcarrier spacing or information on a configured SL grant.
17. The BS of claim 13 , wherein the SLRB configuration information further includes radio link control (RLC) mode, and
wherein the RLC mode includes at least one of: RLC AM, RLC UM or sequence number (SN)-field length.