Method and apparatus for deciding packet communication range in terminal direct communication system
A communication method and system for converging a 5 th -Generation (5G) communication system for supporting higher data rates beyond a 4 th -Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for determining a reception area of a packet in a V2X system are provided. In described aspects, a reception terminal may receive location information of a transmitting terminal and range information of transmitted data, and may determine whether to provide feedback regarding the transmitted data based on the location information and the range information.
1. A method performed by a first terminal in a wireless communication system, the method comprising:
generating a medium access control (MAC) protocol data unit (PDU) including a plurality of MAC service data units (SDUs), wherein each MAC SDU of the plurality of MAC SDUs has a communication range value;
identifying a longest communication range value from among communication range values of the plurality of MAC SDUs;
transmitting, to a second terminal, sidelink control information (SCI) including the identified longest communication range value;
transmitting, to the second terminal, the MAC PDU including the plurality of MAC SDUs; and
receiving, from the second terminal, a hybrid automatic repeat request (HARQ) feedback for the MAC PDU, in case that a range identified based on a zone identification is smaller than or equal to a range identified based on the identified longest communication range value.
2. The method of claim 1 , wherein at least one of the plurality of MAC SDUs included in the MAC PDU has a different communication range value.
3. The method of claim 1 ,
wherein the SCI further includes the zone identification associated with the first terminal.
4. A method performed by a second terminal in a wireless communication system, the method comprising:
receiving, from a first terminal, sidelink control information (SCI) including a communication range value;
receiving, from the first terminal, a medium access control (MAC) protocol data unit (PDU) including a plurality of MAC service data units (SDUs);
determining whether a hybrid automatic repeat request (HARQ) feedback for the MAC PDU is transmitted to the first terminal based on the received communication range value; and
transmitting, to the first terminal, the HARQ feedback for the MAC PDU based on the determination, in case that a range identified based on a zone identification is smaller than or equal to a range identified based on the received communication range value,
wherein the received communication range value is a longest communication range value among communication range values corresponding to the plurality of MAC SDUs.
5. The method of claim 4 , wherein at least one of the plurality of MAC SDUs included in the MAC PDU has a different communication range value.
6. The method of claim 4 ,
wherein the SCI further includes the zone identification associated with the first terminal.
7. A first terminal comprising:
a transceiver; and
a controller configured to:
generate a medium access control (MAC) protocol data unit (PDU) including a plurality of MAC service data units (SDUs), wherein each MAC SDU of the plurality of MAC SDUs has a communication range value,
identify a longest communication range value from the communication range values of the plurality of MAC SDUs,
transmit, to a second terminal via the transceiver, sidelink control information (SCI) including the identified longest communication range value, and
transmit, to the second terminal via the transceiver, the MAC PDU including the plurality of MAC SDUs, and
receive, from the second terminal, a hybrid automatic repeat request (HARQ) feedback for the MAC PDU, in case that a range identified based on a zone identification is smaller than or equal to a range identified based on the identified longest communication range value.
8. The first terminal of claim 7 , wherein at least one of the plurality of MAC SDUs included in the MAC PDU has a different communication range value.
9. The first terminal of claim 7 ,
wherein the SCI further includes the zone identification associated with the first terminal.
10. A second terminal comprising:
a transceiver; and
a controller configured to control to:
receive, from a first terminal via the transceiver, sidelink control information (SCI) including a communication range value,
receive, from the first terminal via the transceiver, a medium access control (MAC) protocol data unit (PDU) including a plurality of MAC service data units (SDUs),
determine whether a hybrid automatic repeat request (HARQ) feedback for the MAC PDU is transmitted to the first terminal based on the received communication range value, and
transmit, to the first terminal via the transceiver, the HARQ feedback for the MAC PDU based on the determination, in case that a range identified based on a zone identification is smaller than or equal to a range identified based on the received communication range value,
wherein the received communication range value is a longest communication range value among communication range values corresponding to the plurality of MAC SDUs included in the MAC PDU.
11. The second terminal of claim 10 , wherein at least one of the plurality of MAC SDUs included in the MAC PDU has a different communication range value.
12. The second terminal of claim 10 ,
wherein the SCI further includes the zone identification associated with the first terminal.