Method and device for configuring demodulation reference signal for uplink control channel in wireless cellular communication system
The disclosure relates to 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). The disclosure 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. The disclosure relates to an uplink control information transmission method of a terminal in a wireless communication system, wherein in receiving physical uplink control channel (PUCCH) configuration information and transmitting control information by applying PUCCH format 2 on a PUCCH on the basis of the PUCCH configuration information, the terminal applies a scrambling ID of a DMRS sequence on the basis of a configuration of a PUSCH uplink DMRS mapping type.
1. A base station in a wireless communication system, the base station comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to:
transmit, to a terminal, a control message including first information configuring a physical uplink control channel (PUCCH) resource of PUCCH format 2 , second information associated with a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) of a mapping type A, and third information associated with a DMRS for a PUSCH of a mapping type B,
identify the PUCCH resource based on the first information, and
receive, from the terminal, on the PUCCH resource, a DMRS for PUCCH format 2 based on the control message,
wherein a sequence of the DMRS for PUCCH format 2 is generated based on a scrambling identity (ID) included in the third information of the control message.
2. The base station of claim 1 , wherein the DMRS for PUCCH format 2 is mapped to resource elements within a resource block of the PUCCH resource identified by the first information.
3. The base station of claim 1 , wherein the first information indicates at least one of a number of physical resource blocks, a number of symbols, or an index of a starting symbol for the PUCCH resource of PUCCH format 2 .
4. The base station of claim 1 , wherein the sequence is initialized with the scrambling ID included in the third information.
5. The base station of claim 1 , wherein uplink control information is received from the terminal on the PUCCH resource with the DMRS for PUCCH format 2 , and
wherein the uplink control information includes at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), channel state information (CSI), or a scheduling request (SR).
6. A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, a control message including first information configuring a physical uplink control channel (PUCCH) resource of PUCCH format 2 , second information associated with a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) of a mapping type A, and third information associated with a DMRS for a PUSCH of a mapping type B;
identifying the PUCCH resource based on the first information; and
receiving, from the terminal, on the PUCCH resource, a DMRS for PUCCH format 2 based on the control message,
wherein a sequence of the DMRS for PUCCH format 2 is generated based on a scrambling identity (ID) included in the third information of the control message.
7. The method of claim 6 , wherein the DMRS for PUCCH format 2 is mapped to resource elements within a resource block of the PUCCH resource identified by the first information.
8. The method of claim 6 , wherein the first information indicates at least one of a number of physical resource blocks, a number of symbols, or an index of a starting symbol for the PUCCH resource of PUCCH format 2 .
9. The method of claim 6 , wherein the sequence is initialized with the scrambling ID included in the third information.
10. The method of claim 6 , wherein uplink control information is received from the terminal on the PUCCH resource with the DMRS for PUCCH format 2 , and
wherein the uplink control information includes at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), channel state information (CSI), or a scheduling request (SR).
11. A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to:
receive, from a base station, a control message including first information configuring a physical uplink control channel (PUCCH) resource of PUCCH format 2 , second information associated with a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) of a mapping type A, and third information associated with a DMRS for a PUSCH of a mapping type B,
generate a sequence of a DMRS for PUCCH format 2 based on a scrambling identity (ID) included in the third information of the control message, and
transmit, to the base station, on the PUCCH resource identified based on the first information, the DMRS for PUCCH format 2 based on the control message.
12. The terminal of claim 11 , wherein the DMRS for PUCCH format 2 is mapped to resource elements within a resource block of the PUCCH resource identified by the first information.
13. The terminal of claim 11 , wherein the first information indicates at least one of a number of physical resource blocks, a number of symbols, or an index of a starting symbol for the PUCCH resource of the PUCCH format 2 .
14. The terminal of claim 11 , wherein the sequence is initialized with the scrambling ID included in the third information.
15. The terminal of claim 11 , wherein uplink control information is transmitted to the base station on the PUCCH resource with the DMRS for PUCCH format 2 , and
wherein the uplink control information includes at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), channel state information (CSI), or scheduling request (SR).
16. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a control message including first information configuring a physical uplink control channel (PUCCH) resource of a PUCCH format 2 , second information associated with a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) of a mapping type A, and third information associated with a DMRS for a PUSCH of a mapping type B;
generating a sequence of a DMRS for PUCCH format 2 based on a scrambling identity (ID) included in the third information of the control message; and
transmitting, to the base station, on the PUCCH resource identified based on the first information, the DMRS for PUCCH format 2 based on the control message.
17. The method of claim 16 , wherein the DMRS for PUCCH format 2 is mapped resource elements within a resource block of the PUCCH resource identified by the first information.
18. The method of claim 17 , wherein the first information indicates at least one of a number of physical resource blocks, a number of symbols, or an index of a starting symbol for the PUCCH resource of PUCCH format 2 .
19. The method of claim 16 , wherein the sequence is initialized with the scrambling ID included in the third information.
20. The method of claim 16 , wherein uplink control information is transmitted to the base station on the PUCCH resource with the DMRS for PUCCH format 2 , and
wherein the uplink control information includes at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), channel state information (CSI), or a scheduling request (SR).