Method for transmitting and receiving scheduling request between terminal and base station in wireless communication system and device for supporting same
Disclosed are a method for transmitting and receiving a scheduling request between a terminal and a base station in a wireless communication system, and a device for supporting same.
1. A method of transmitting a scheduling request (SR) to a base station (BS) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from the BS, (i) first information related to first physical uplink control channel (PUCCH) resources for a plurality of SRs, and (ii) second information related to a second PUCCH resource for hybrid automatic repeat request acknowledgement (HARQ-ACK) information, wherein at least one of the first PUCCH resources overlaps in time with the second PUCCH resource; and
transmitting a signal comprising (i) the HARQ-ACK information and (ii) bit information related to the plurality of SRs, which is appended to the HARQ-ACK information,
wherein, in a state in which at least one of the plurality of SRs is a positive SR, and based on the HARQ-ACK information being larger than 2 bits: the bit information related to the plurality of SRs is configured to identify one SR from among the plurality of SRs.
2. The method according to claim 1 , wherein the first information is received by higher-layer signaling.
3. The method according to claim 1 , wherein the second information is received in downlink control information (DCI).
4. The method according to claim 1 , wherein the bit information related to the plurality of SRs is configured to identify the one SR from among the plurality of SRs as a positive SR.
5. The method according to claim 1 , wherein the bit information related to the plurality of SRs comprises a plurality of bits in which each bit indicates whether a corresponding SR among the plurality of SRs is a positive SR or a negative SR.
6. The method according to claim 5 , wherein based on an SR among the plurality of SRs being a positive SR, a corresponding bit among the plurality of bits has a value of 1, and
wherein based on an SR among the plurality of SRs being a negative SR, a corresponding bit among the plurality of bits has a value of 0.
7. The method according to claim 5 , wherein the plurality of bits are configured in an order according to identification information for each of the plurality of SRs.
8. The method according to claim 1 , wherein the at least one of the first PUCCH resources overlaps in time fully or partially with the second PUCCH resource.
9. The method according to claim 1 , wherein the second PUCCH resource carries uplink control information (UCI) comprising the HARQ-ACK information.
10. The method according to claim 9 , wherein the bit information related to the plurality of SRs is transmitted in the second PUCCH resource by using a coded bit format generated by combining the bit information with the UCI.
11. The method according to claim 1 , wherein transmitting the signal is performed via a third PUCCH resource.
12. The method according to claim 11 , wherein the third PUCCH resource is the same as the second PUCCH resource for transmitting the HARQ-ACK.
13. The method according to claim 11 , wherein the third PUCCH resource is determined based on a total size of (i) the HARQ-ACK information and (ii) the bit information related to the plurality of SRs.
14. The method according to claim 1 , wherein the bit information related to the plurality of SRs is configured to identify the one SR by an index for the one SR, from among an ordered plurality of indices corresponding to the plurality of SRs.
15. A method of receiving a scheduling request (SR) from a user equipment (UE) by a base station (BS) in a wireless communication system, the method comprising:
transmitting, to the UE, (i) first information related to first physical uplink control channel (PUCCH) resources for a plurality of SRs, and (ii) second information related to a second PUCCH resource for hybrid automatic repeat request acknowledgement (HARQ-ACK) information, wherein at least one of the first PUCCH resources overlaps in time with the second PUCCH resource; and
receiving a signal comprising (i) the HARQ-ACK information, and (ii) bit information related to the plurality of SRs, which is appended to the HARQ-ACK information,
wherein, in a state in which at least one of the plurality of SRs is a positive SR, and based on the HARQ-ACK information being larger than 2 bits: the bit information related to the plurality of SRs is configured to identify one SR from among the plurality of SRs.
16. A user equipment (UE) configured to transmit a scheduling request (SR) to a base station (BS) in a wireless communication system, the UE comprising:
a receiver;
a transmitter;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving, from the BS, (i) first information related to first physical uplink control channel (PUCCH) resources for a plurality of SRs, and (ii) second information related to a second PUCCH resource for hybrid automatic repeat request acknowledgement (HARQ-ACK) information, wherein at least one of the first PUCCH resources overlaps in time with the second PUCCH resource; and
transmitting a signal comprising (i) the HARQ-ACK information, and (ii) bit information related to the plurality of SRs, which is appended to the HARQ-ACK information,
wherein, in a state in which at least one of the plurality of SRs is a positive SR, and based on the HARQ-ACK information being larger than 2 bits: the bit information related to the plurality of SRs is configured to identify one SR from among the plurality of SRs.
17. A base station (BS) configured to receive a scheduling request (SR) from a user equipment (UE) in a wireless communication system, the BS comprising:
a receiver;
a transmitter;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
transmitting, to the UE, (i) first information related to first physical uplink control channel (PUCCH) resources for a plurality of SRs, and (ii) second information related to a second PUCCH resource for hybrid automatic repeat request acknowledgement (HARQ-ACK) information, wherein at least one of the first PUCCH resources overlaps in time with the second PUCCH resource; and
receiving a signal comprising (i) the HARQ-ACK information and (ii) bit information related to the plurality of SRs, which is appended to the HARQ-ACK information,
wherein, in a state in which at least one of the plurality of SRs is a positive SR, and based on the HARQ-ACK information being larger than 2 bits: the bit information related to the plurality of SRs is configured to identify one SR from among the plurality of SRs.