Apparatus and method of wireless communication of same
An apparatus and a method of wireless communication of the same are provided. The method includes receiving data from a second user equipment, performing decoding on the data from the second user equipment, and transmitting, to the second user equipment, feedback information according to a decoding state associated with the decoding on the data from the second user equipment, wherein the feedback information is carried in a sequence.
1. A first user equipment for wireless communication, comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver;
wherein the processor is configured to:
control the transceiver to receive data from a second user equipment;
perform decoding on the data from the second user equipment; and
control the transceiver to transmit, to the second user equipment, feedback information according to a decoding state associated with the decoding on the data from the second user equipment;
wherein the feedback information is carried in a sequence, and the sequence is determined based on the feedback information and at least one of: an identity (ID) of the first user equipment, or an ID of the second user equipment;
wherein the feedback information is repeatedly transmitted on two adjacent orthogonal frequency division multiplexed (OFDM) symbols, and wherein a second OFDM symbol of the two adjacent OFDM symbols comprises the feedback information adjacent to an OFDM symbol used as a guard period (GP).
2. The first user equipment of claim 1 , wherein the feedback information is a hybrid automatic repeat request (HARQ) acknowledgement (ACK) or a HARQ negative acknowledgement (NACK).
3. The first user equipment of claim 1 , wherein the sequence is further determined based on an ID of a group, wherein the group comprises the first user equipment and the second user equipment.
4. The first user equipment of claim 2 , wherein communication between the first user equipment and the second user equipment is via unicast or groupcast.
5. The first user equipment of claim 1 , wherein a symbol before an OFDM symbol on which the feedback information is transmitted is used as a GP, and a symbol after the OFDM symbol on which the feedback information is transmitted is used as a GP.
6. The first user equipment of claim 2 , wherein a symbol before an OFDM symbol on which the feedback information is transmitted is used as a GP, and a symbol after the OFDM symbol on which the feedback information is transmitted is used as a GP.
7. The first user equipment of claim 1 , wherein the data from the second user equipment is carried in a physical sidelink shared channel (PSSCH), and the feedback information corresponds to the PSSCH in the different slots.
8. The first user equipment of claim 1 , wherein the feedback information is carried in a feedback channel, and a transmission resource of the feedback channel is determined by a transmission resource of a physical sidelink control channel (PSCCH) or a PSSCH, or indicated by the PSCCH.
9. The first user equipment of claim 8 , wherein a number of frequency resources of the feedback channel is same as a number of frequency resources of the PSSCH or the number of the frequency resources of the feedback channel is same as frequency resources of a PSCCH, which is associated to the PSSCH, or the number of the frequency resources of the feedback channel is pre-configured or configured by a network.
10. The first user equipment of claim 8 , wherein a frequency starting position of the feedback channel is same as a frequency starting position of the PSCCH or the PSSCH, or a frequency ending position of the feedback channel is same as a frequency ending position of the PSCCH or the PSSCH.
11. The first user equipment of claim 1 , wherein the feedback information is mapped to one resource element (RE) per N REs on an OFDM symbol, which is mapped with the feedback information.
12. A method of wireless communication of a first user equipment, comprising:
receiving data from a second user equipment;
performing decoding on the data from the second user equipment; and
transmitting, to the second user equipment, feedback information according to a decoding state associated with the decoding on the data from the second user equipment;
wherein the feedback information is carried in a sequence, and the sequence is determined based on the feedback information and at least one of: an identity (ID) of the first user equipment, or an ID of the second user equipment;
wherein the feedback information is repeatedly transmitted on two adjacent OFDM symbols, a second OFDM symbol of the two adjacent OFDM symbols comprising the feedback information adjacent to an OFDM symbol used as a GP.
13. The method of claim 12 , wherein the feedback information is a hybrid automatic repeat request (HARQ) acknowledgement (ACK) or a HARQ negative acknowledgement (NACK).
14. The method of claim 12 , wherein the sequence is further determined based on an ID of a group, wherein the group comprises the first user equipment and the second user equipment.
15. The method of claim 13 , wherein communication between the first user equipment and the second user equipment is via unicast or groupcast.
16. The method of claim 12 , wherein a symbol before an OFDM symbol on which the feedback information is transmitted is used as a GP, and a symbol after the OFDM symbol on which the feedback information is transmitted is used as a GP.
17. The method of claim 13 , wherein a symbol before an OFDM symbol on which the feedback information is transmitted is used as a GP, and a symbol after the OFDM symbol on which the feedback information is transmitted is used as a GP.
18. The method of claim 12 , wherein the data from the second user equipment is carried in a physical sidelink shared channel (PSSCH), and the feedback information corresponds to the PSSCH in different slots.
19. The method of claim 12 , wherein the feedback information is carried in a feedback channel, and a transmission resource of the feedback channel is determined by a transmission resource of a physical sidelink control channel (PSCCH) or a PSSCH, or indicated by the PSCCH.
20. The method of claim 19 , wherein a number of frequency resources of the feedback channel is same as a number of frequency resources of the PSSCH, or the number of the frequency resources of the feedback channel is same as frequency resources of a PSCCH, which is associated to the PSSCH, or the number of the frequency resources of the feedback channel is pre-configured or configured by a network.
21. The method of claim 19 , wherein a frequency starting position of the feedback channel is same as a frequency starting position of the PSCCH or the PSSCH, or a frequency ending position of the feedback channel is same as a frequency ending position of the PSCCH or the PSSCH.
22. The method of claim 12 , wherein the feedback information is mapped to one resource element (RE) per N REs on an OFDM symbol, which is mapped with the feedback information.
23. A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the method of claim 12 .