Method and apparatus for prioritization inside configured grant
The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. Disclosed are a method and apparatus for prioritizing an I-AQR process of a CG resource in a wireless communication system.
1 . A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, configured grant (CG) configuration information including configuration information on intra-CG prioritization through a radio resource control (RRC) message;
identifying a priority of a hybrid automatic repeat request (HARQ) process, wherein in case that a medium access control protocol data unit (MAC PDU) to be transmitted is not stored in a HARQ buffer, the priority of a HARQ process is determined by a highest priority among priorities of logical channels that have data available; and
transmitting, to the base station, a MAC PDU corresponding to the HARQ process based on the CG configuration information.
2 . The method of claim 1 , wherein in case that the MAC PDU to be transmitted is stored in the HARQ buffer, the priority of a HARQ process is determined by the highest priority among priorities of logical channels multiplexed in the MAC PDU.
3 . The method of claim 2 , further comprising:
selecting a HARQ process with the highest priority among one or more HARQ processes determined based on the case that a MAC PDU to be transmitted is stored in the HARQ buffer of the HARQ process, and one or more HARQ processes determined based on the case that a MAC PDU to be transmitted is not stored in the HARQ buffer of the HARQ process.
4 . The method of claim 1 , wherein at least one of the logical channels is composed of a logical channel configured to use the CG resource based on the CG configuration information.
5 . The method of claim 1 , further comprising:
selecting a HARQ process with the highest priority for retransmission, in case that there are at least one HARQ process with the highest priority for retransmission and at least one HARQ process with the highest priority for initial transmission.
6 . A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller,
wherein the controller is configured to:
receive, from a base station, configured grant (CG) configuration information including configuration information on intra-CG prioritization through a radio resource control (RRC) message,
identify a priority of a hybrid automatic repeat request (HARQ) process, wherein in case that a medium access control protocol data unit (MAC PDU) to be transmitted is not stored in a HARQ buffer, the priority of a HARQ process is determined by a highest priority among priorities of logical channels that have data available, and
transmit, to the base station, a MAC PDU corresponding to the HARQ process based on the CG configuration information.
7 . The terminal of claim 6 , wherein in case that the MAC PDU to be transmitted is stored in the HARQ buffer, the priority of a HARQ process is determined by the highest priority among priorities of logical channels multiplexed in the MAC PDU.
8 . The terminal of claim 7 , wherein the controller is configured to select a HARQ process with the highest priority among one or more HARQ process es determined based on the case that a MAC PDU to be transmitted is stored in the HARQ buffer of the HARQ process, and one or more HARQ process es determined based on the case that a MAC PDU to be transmitted is not stored in the HARQ buffer of the HARQ process.
9 . The terminal of claim 6 , wherein at least one of the logical channels is composed of a logical channel configured to use the CG resource based on the CG configuration information.
10 . The terminal of claim 6 , wherein the controller is configured to select a HARQ process with the highest priority for retransmission, in the case that there are at least one HARQ process with the highest priority for retransmission and at least one HARQ process with the highest priority for initial transmission.
11 . A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, configured grant (CG) configuration information including configuration information on intra-CG prioritization through a radio resource control (RRC) message; and
receiving, from the terminal, a medium access control protocol data unit (MAC PDU) through a CG resource determined based on the CG configuration information,
wherein the MAC PDU is a MAC PDU corresponding to a HARQ process with a highest priority among at least one hybrid automatic repeat and request (HARQ) process identified by the terminal, and
wherein in case that a medium access control protocol data unit (MAC PDU) to be transmitted is not stored in a HARQ buffer, a priority of a HARQ process is determined by the highest priority among priorities of logical channels that have data available.
12 . A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller,
wherein the controller is configured to:
transmit, to a terminal, configured grant (CG) configuration information including configuration information on intra-CG prioritization through a radio resource control (RRC) message, and
receive, from the terminal, a medium access control protocol data unit (MAC PDU) through a CG resource determined based on the CG configuration information, wherein the MAC PDU is a MAC PDU corresponding to a HARQ process with a highest priority among at least one hybrid automatic repeat and request (HARQ) process identified by the terminal, and
wherein in case that a medium access control protocol data unit (MAC PDU) to be transmitted is not stored in a HARQ buffer, a priority of a HARQ process is determined by the highest priority among priorities of logical channels that have data available.