Method and device for transmitting or receiving multiple data in wireless cooperative communication system
A method of receiving a PDSCH, by a terminal, in a wireless communication system includes: receiving, from a base station through higher layer signaling, configuration information as to whether information of a transmission configuration indication (TCI) field included in downlink control information (DCI) is to be applied; receiving, from the base station, at least one physical downlink control channel (PDCCH) for scheduling a first PDSCH and a second PDSCH transmitted from different base stations from each other; and when it is configured to apply the TCI field, and when a scheduling time offset between the at least one PDCCH and at least one of the first PDSCH and the second PDSCH is longer than or equal to a beam switching time limit, receiving each of the first PDSCH and the second PDSCH based on a quasi co-location (QCL) parameter of a TCI state indicated by a codepoint of a TCI field included in DCI transmitted through the at least one PDCCH.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station through higher layer signaling, configuration information indicating whether a transmission configuration indication (TCI) field is present in downlink control information (DCI);
receiving, from the base station, DCI on a physical downlink control channel (PDCCH) for scheduling both a first physical downlink shared channel (PDSCH) associated with a first transmission and reception point (TRP) and a second PDSCH associated with a second TRP; and
when it is configured to apply in case that the configuration information indicates that the TCI field is present in DCI and a time offset between the reception of the DCI and at least one of the first PDSCH or the second PDSCH is longer than or equal to a value related to a time duration for quasi co-location (QCL), receiving the first PDSCH and the second PDSCH based on at least one QCL parameter associated with at least one TCI state in a codepoint of the TCI field included in the DCI, and
wherein the DCI, the first PDSCH, and the second PDSCH are received on a same cell.
2. The method of claim 1 , further comprising:
in case that the time offset is shorter than the value related to the time duration for QCL, receiving the first PDSCH and the second PDSCH based on at least one QCL parameter used for the PDCCH.
3. The method of claim 2 , wherein the at least one QCL parameter used for the PDCCH comprises a QCL parameter used for a QCL indication for PDCCH of a control resource set (CORESET) associated with a search space having a lowest CORESET identifier (ID) in a most recent slot.
4. The method of claim 1 , wherein information on the time duration for QCL is transmitted to the base station through capability information of the terminal.
5. The method of claim 1 , further comprising:
receiving, from the base station, a medium access control (MAC) control element (CE) including information related to at least one TCI state candidate for PDSCH, from among TCI states configured by higher layer signaling,
wherein the at least one TCI state in the codepoint of the TCI field included in the DCI indicates at least one of the at least one TCI state candidate.
6. A method performed by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal through higher layer signaling, configuration information indicating whether a transmission configuration indication (TCI) field is present in downlink control information (DCI);
transmitting, to the terminal, DCI on a physical downlink control channel (PDCCH) for scheduling both a first physical downlink shared channel (PDSCH) s associated with a first transmission and reception point (TRP) and a second PDSCH associated with a second TRP; and
in case that the configuration information indicated that the TCI field is present in DCI, and a time offset between the reception of the DCI and at least one of the first PDSCH and the second PDSCH is longer than or equal a value related to a time duration for quasi co-location (QCL), transmitting the first PDSCH and the second PDSCH according to at least one QCL parameter associated with at least one TCI state in a codepoint of the TCI field included in the DCI,
wherein the DCI, the first PDSCH, and the second PDSCH are transmitted on a same cell.
7. The method of claim 6 , further comprising:
in case that the time offset is shorter than the value related to the time duration for QCL, transmitting the first PDSCH and the second PDSCH according to at least one QCL parameter used for the PDCCH.
8. The method of claim 7 , wherein the at least one QCL parameter used for the PDCCH comprises a QCL parameter used for a QCL indication for PDCCH of a control resource set (CORESET) associated with a search space having a lowest CORESET identifier (ID) in a most recent slot.
9. The method of claim 6 , wherein information on the time duration for QCL is received from the terminal through capability information of the terminal.
10. The method of claim 6 , further comprising:
transmitting, to the terminal, a medium access control (MAC) control element (CE) including information related to at least one TCI state candidate for PDSCH, from among TCI states configured by higher layer signaling,
wherein the at least one TCI state in the codepoint of the TCI field included in the DCI indicates at least one of the at least one TCI state candidate.
11. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver configured to:
receive, from a base station through higher layer signaling, configuration information indicating whether transmission configuration indication (TCI) field is present in downlink control information (DCI),
receive, from the base station, DCI on a physical downlink control channel (PDCCH) for scheduling both a first physical downlink shared channel (PDSCH) associated with a first transmission and reception point (TRP) and a second PDSCH associated with a second TRP, and
in case that the configuration information indicates that the TCI field is present in DCI and a time offset between the reception of the DCI and at least one of the first PDSCH or the second PDSCH is longer than or equal to a value related to a time duration for quasi co-location (QCL), receive the first PDSCH and the second PDSCH based on at least one QCL parameter associated with at least one TCI state in a codepoint of the TCI field included in the DCI,
wherein the DCI, the first PDSCH, and the second PDSCH are received on a same cell.
12. The terminal of claim 11 , wherein the controller is further configured to, in case that the time offset is shorter than the value related to the time duration for QCL, receive the first PDSCH and the second PDSCH based on at least one QCL parameter used for the PDCCH.
13. The terminal of claim 12 , wherein the at least one QCL parameter used for the PDCCH comprises a QCL parameter used for a QCL indication for PDCCH of a control resource set (CORESET) associated with a search space having a lowest CORESET identifier (ID) in a most recent slot.
14. The terminal of claim 11 ,
wherein the controller is further configured to receive, from the base station, a medium access control (MAC) control element (CE) including information related to at least one TCI state candidate for PDSCH, from among TCI states configured by higher layer signaling, and
wherein the at least one TCI state in the codepoint of the TCI field included in the DCI indicates at least one of the at least one TCI state candidate.
15. A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller coupled with the transceiver configured to:
transmit, to a terminal through higher layer signaling, configuration information indicating whether a transmission configuration indication (TCI) field is present in downlink control information (DCI),
transmit, to the terminal, DCI on a physical downlink control channel (PDCCH) for scheduling both a first physical downlink shared channel (PDSCH) associated with a first transmission and reception point (TRP) and a second PDSCH associated with a second TRP, and
in case that the configuration information indicates that the TCI field is present in DCI and a time offset between the reception of the DCI and at least one of the first PDSCH or the second PDSCH is longer than or equal to a time duration for quasi co-location (QCL), transmit the first PDSCH and the second PDSCH according to at least one QCL parameter associated with at least one TCI state in a codepoint of the TCI field included in the DCI,
wherein the DCI, the first PDSCH, and the second PDSCH are transmitted on a same cell.