Method and device for receiving physical downlink control channel
The present 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 present 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 present disclosure provides a method and device for receiving a physical downlink control channel in a wireless communication network, and method and device for determining resources.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, configuration information for a physical downlink control channel (PDCCH);
identifying a plurality of PDCCH monitoring occasions for PDCCH repetitions based on the configuration information; and
monitoring at least one PDCCH scheduling a physical downlink shared channel (PDSCH) based on the plurality of PDCCH monitoring occasions,
wherein the plurality of PDCCH monitoring occasions includes a first PDCCH monitoring occasion corresponding to a first search space (SS) and a second PDCCH monitoring occasion corresponding to a second SS,
wherein the first SS and the second SS are associated with each other, and
wherein the first SS and the second SS have a same SS type that is one of a user equipment specific SS (USS) or a common SS (CSS).
2. The method of claim 1 , further comprising receiving, from the base station, information indicating whether a same beam is used for the at least one PDCCH in the first PDCCH monitoring occasion and the second PDCCH monitoring occasion,
wherein in case that the information does not indicate that the same beam is used, the at least one PDCCH is monitored based on different beams.
3. The method of claim 1 ,
wherein the first SS is associated with a first control resource set (CORESET), and
wherein the second SS is associated with a second CORESET.
4. The method according to claim 1 ,
wherein the first SS and the second SS have a same periodicity, a same offset, and a same duration in a time domain.
5. The method of claim 1 , further comprising:
receiving, from the base station, uplink (UL)/downlink (DL) configuration;
receiving, from the base station, downlink control information (DCI) including a slot format indicator (SFI);
identifying a valid resource of the PDCCH monitoring occasions based on the UL/DL configuration and the SFI; and
monitoring the at least one PDCCH based on the valid resource.
6. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a processor operably coupled to the transceiver, wherein the processor is configured to:
receive, from a base station, configuration information for a physical downlink control channel (PDCCH),
identify a plurality of PDCCH monitoring occasions for PDCCH repetitions based on the configuration information, and
monitor at least one PDCCH scheduling a physical downlink shared channel (PDSCH) based on the plurality of PDCCH monitoring occasions,
wherein the plurality of PDCCH monitoring occasions includes a first PDCCH monitoring occasion corresponding to a first search space (SS) and a second PDCCH monitoring occasion corresponding to a second SS,
wherein the first SS and the second SS are associated with each other, and
wherein the first SS and the second SS have a same SS type that is one of a user equipment specific SS (USS) or a common SS (CSS).
7. The terminal of claim 6 , wherein the processor is further configured to receive, from the base station, information indicating whether a same beam is used for the at least one PDCCH in the first PDCCH monitoring occasion and the second PDCCH monitoring occasion, and
wherein in case that the information does not indicate that the same beam is used, the at least one PDCCH is monitored based on different beams.
8. The terminal of claim 6 ,
wherein the first SS is associated with a first control resource set (CORESET), and
wherein the second SS is associated with a second CORESET.
9. The terminal of claim 6 ,
wherein the first SS and the second SS have a same periodicity, a same offset, and a same duration in a time domain.
10. The terminal of claim 6 , wherein the processor is further configured to:
receive, from the base station, uplink (UL)/downlink (DL) configuration;
receive, from the base station, downlink control information (DCI) including a slot format indicator (SFI);
identify a valid resource of the PDCCH monitoring occasions based on the UL/DL configuration and the SFI; and
monitor the at least one PDCCH based on the valid resource.
11. A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, configuration information for a physical downlink control channel (PDCCH), wherein a plurality of PDCCH monitoring occasions for PDCCH repetitions is configured based on the configuration information, and wherein the plurality of PDCCH monitoring occasions includes a first PDCCH monitoring occasion corresponding to a first search space (SS) and a second PDCCH monitoring occasion corresponding to a second SS; and
transmitting, to the terminal, at least one PDCCH scheduling a physical downlink shared channel (PDSCH) based on the plurality of PDCCH monitoring occasions,
wherein the first SS and the second SS are associated with each other, and
wherein the first SS and the second SS have a same SS type that is one of a user equipment specific SS (USS) or a common SS (CSS).
12. The method of claim 11 , further comprising transmitting, to the terminal, information indicating whether a same beam is used for the at least one PDCCH in the first PDCCH monitoring occasion and the second PDCCH monitoring occasion,
wherein in case that the information does not indicate that the same beam is used, the at least one PDCCH is based on different beams.
13. The method of claim 11 ,
wherein the first SS is associated with a first control resource set (CORESET), and
wherein the second SS is associated with a second CORESET.
14. The method of claim 11 ,
wherein the first SS and the second SS have a same periodicity, a same offset, and a same duration in a time domain.
15. The method of claim 11 , further comprising:
transmitting, to the terminal, uplink (UL)/downlink (DL) configuration; and
transmitting, to the terminal, downlink control information (DCI) including a slot format indicator (SFI),
wherein a valid resource of the plurality of PDCCH monitoring occasions for the at least one PDCCH is associated with the UL/DL configuration and the SFI.
16. A base station in a wireless communication system, the base station comprising:
a transceiver; and
a processor operably coupled to the transceiver, wherein the processor is configured to:
transmit, to a terminal, configuration information for a physical downlink control channel (PDCCH), wherein a plurality of PDCCH monitoring occasions for PDCCH repetitions is configured based on the configuration information, and wherein the plurality of PDCCH monitoring occasions includes a first PDCCH monitoring occasion corresponding to a first search space (SS) and a second PDCCH monitoring occasion corresponding to a second SS, and
transmit, to the terminal, at least one PDCCH scheduling a physical downlink shared channel (PDSCH) based on the plurality of PDCCH monitoring occasions,
wherein the first SS and the second SS are associated with each other, and
wherein the first SS and the second SS have a same SS type that is one of a user equipment specific SS (USS) or a common SS (CSS).
17. The base station of claim 16 , wherein the processor is further configured to transmit, to the terminal, information indicating whether a same beam is used for the at least one PDCCH in the first PDCCH monitoring occasion and the second PDCCH monitoring occasion, and
wherein in case that the information does not indicate that the same beam is used, the at least one PDCCH is based on different beams.
18. The base station of claim 16 ,
wherein the first SS is associated with a first control resource set (CORESET), and
wherein the second SS is associated with a second CORESET.
19. The base station of claim 16 ,
wherein the first SS and the second SS have a same periodicity, a same offset, and a same duration in a time domain.
20. The base station of claim 16 , wherein the processor is further configured to:
transmit, to the terminal, uplink (UL)/downlink (DL) configuration, and
transmit, to the terminal, downlink control information (DCI) including a slot format indicator (SFI),
wherein a valid resource of the plurality of PDCCH monitoring occasions for the at least one PDCCH is associated with the UL/DL configuration and the SFI.