Method performed by terminal and base station in wireless communication system
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from a base station on a first cell, first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) on first multiple cells and receiving, from the base station, the multiple PDSCHs on the first multiple cells based on the first DCI. at least one CRC of the first DCI is scrambled with at least one of a cell radio network temporary identifier (C-RNTI) or a modulation coding scheme (MCS)-C-RNTI.
1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, configuration information including first information indicating whether to monitor in a UE specific search space (USS) for first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) in first multiple cells;
in case that the first information indicates to monitor in the USS for the first DCI, receiving, from the base station, the first DCI for scheduling the multiple PDSCHs in the first multiple cells; and
receiving, from the base station, the multiple PDSCHs in the first multiple cells based on the first DCI,
wherein at least one cyclic redundancy check (CRC) of the first DCI is scrambled with at least one of a first cell radio network temporary identifier (C-RNTI) or a first modulation and coding scheme (MCS)-C-RNTI.
2 . The method of claim 1 ,
wherein the first information further indicates whether to monitor in the USS for a second DCI for scheduling multiple physical uplink shared channels (PUSCHs) in second multiple cells,
wherein the method further comprises:
in case that the first information indicates to monitor in the USS for the second DCI, receiving, from the base station, the second DCI for scheduling the multiple PUSCHs in the second multiple cells; and
transmitting, to the base station, the multiple PUSCHs in the second multiple cells based on the second DCI, and
wherein at least one CRC of the second DCI is scrambled with at least one of a second C-RNTI or a second MCS-C-RNTI.
3 . The method of claim 1 , further comprising:
validating a physical downlink control channel (PDCCH) for the first DCI to activate or release semi-persistent scheduling (SPS) PDSCHs on at least one serving cell,
wherein the at least one serving cell is based on the first DCI,
wherein the first DCI includes a first field indicating one or more scheduled cells and a second field indicating one or more start and length indicator value (SLIV) entries, and
wherein the at least one serving cell is determined based on at least one of the first field or the second field of the first DCI.
4 . The method of claim 3 , wherein the at least one serving cell is determined based on a cell with a smallest cell index or a largest cell index of the one or more scheduled cells indicated by the first field of the first DCI.
5 . The method of claim 1 , wherein the UE is configured with second information on a number of repetitions for data, and
wherein the multiple PDSCHs are received based on the second information on the number of the repetitions.
6 . A user equipment (UE) comprising:
at least one transceiver;
at least one processor communicatively coupled to the at least one transceiver; and
memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the UE to:
receive, from a base station, configuration information including first information indicating whether to monitor in a UE specific search space (USS) for first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) in first multiple cells,
in case that the first information indicates to monitor in the USS for the first DCI, receive, from the base station, the first DCI for scheduling the multiple PDSCHs in the first multiple cells, and
receive, from the base station, the multiple PDSCHs in the first multiple cells based on the first DCI,
wherein at least one cyclic redundancy check (CRC) of the first DCI is scrambled with at least one of a first cell radio network temporary identifier (C-RNTI) or a first modulation and coding scheme (MCS)-C-RNTI.
7 . The UE of claim 6 ,
wherein the first information further indicates whether to monitor in the USS for a second DCI for scheduling multiple physical uplink shared channels (PUSCHs) in second multiple cells,
wherein the instructions further cause the UE to:
in case that the first information indicates to monitor in the USS for the second DCI, receive, from the base station, the second DCI for scheduling the multiple PUSCHs in the second multiple cells, and
transmit, to the base station, the multiple PUSCHs in the second multiple cells based on the second DCI, and
wherein at least one CRC of the second DCI is scrambled with at least one of a second C-RNTI or a second MCS-C-RNTI.
8 . The UE of claim 6 ,
wherein the instructions further cause the UE to validate a physical downlink control channel (PDCCH) for the first DCI to activate or release semi-persistent scheduling (SPS) PDSCHs on at least one serving cell,
wherein the at least one serving cell is based on the first DCI,
wherein the first DCI includes a first field indicating one or more scheduled cells and a second field indicating one or more start and length indicator value (SLIV) entries, and
wherein the at least one serving cell is determined based on at least one of the first field or the second field of the first DCI.
9 . The UE of claim 8 , wherein the at least one serving cell is determined based on a cell with a smallest cell index or a largest cell index of the one or more scheduled cells indicated by the first field of the first DCI.
10 . The UE of claim 6 , wherein the UE is configured with second information on a number of repetitions for data, and
wherein the multiple PDSCHs are received based on the second information on the number of the repetitions.
11 . A method performed by a base station, the method comprising:
transmitting, to a user equipment (UE), configuration information including first information indicating whether to monitor in a UE specific search space (USS) for first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) in first multiple cells;
in case that the first information indicates to monitor in the USS for the first DCI, transmitting, to the UE, the first DCI for scheduling the multiple PDSCHs in the first multiple cells; and
transmitting, to the UE, the multiple PDSCHs in the first multiple cells based on the first DCI,
wherein at least one cyclic redundancy check (CRC) of the first DCI is scrambled with at least one of a first cell radio network temporary identifier (C-RNTI) or a first modulation and coding scheme (MCS)-C-RNTI.
12 . The method of claim 11 ,
wherein the first information further indicates whether to monitor in the USS for a second DCI for scheduling multiple physical uplink shared channels (PUSCHs) in second multiple cells,
wherein the method further comprises:
in case that the first information indicates to monitor in the USS for the second DCI, transmitting, to the UE, the second DCI for scheduling the multiple PUSCHs in the second multiple cells; and
receiving, from the UE, the multiple PUSCHs in the second multiple cells based on the second DCI, and
wherein at least one CRC of the second DCI is scrambled with at least one of a second C-RNTI or a second MCS-C-RNTI.
13 . The method of claim 11 , further comprising:
activating or releasing semi-persistent scheduling (SPS) PDSCHs on at least one serving cell based on a physical downlink control channel (PDCCH) for the first DCI,
wherein the first DCI includes a first field indicating one or more scheduled cells and a second field indicating one or more start and length indicator value (SLIV) entries, and
wherein the at least one serving cell is associated with at least one of the first field or the second field of the first DCI.
14 . The method of claim 13 , wherein the at least one serving cell is associated with a cell with a smallest cell index or a largest cell index of the one or more scheduled cells indicated by the first field of the first DCI.
15 . The method of claim 11 , wherein the UE is configured with second information on a number of repetitions for data, and
wherein the multiple PDSCHs are transmitted based on the second information on the number of the repetitions.
16 . A base station comprising:
at least one transceiver;
at least one processor communicatively coupled to the at least one transceiver; and
memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the base station to
transmit, to a user equipment (UE), configuration information including first information indicating whether to monitor in a UE specific search space (USS) for first downlink control information (DCI) for scheduling multiple physical downlink shared channels (PDSCHs) in first multiple cells,
in case that the first information indicates to monitor in the USS for the first DCI, transmit, to the UE, the first DCI for scheduling the multiple PDSCHs in the first multiple cells, and
transmit, to UE, the multiple PDSCHs in the first multiple cells based on the first DCI,
wherein at least one cyclic redundancy check (CRC) of the first DCI is scrambled with at least one of a first cell radio network temporary identifier (C-RNTI) or a first modulation and coding scheme (MCS)-C-RNTI.
17 . The base station of claim 16 ,
wherein the first information further indicates whether to monitor in the USS for a second DCI for scheduling multiple physical uplink shared channels (PUSCHs) in second multiple cells,
wherein the instructions further cause the base station to:
in case that the first information indicates to monitor in the USS for the second DCI, transmit, to the UE, the second DCI for scheduling the multiple PUSCHs in the second multiple cells, and
receive, from the UE, the multiple PUSCHs in the second multiple cells based on the second DCI, and
wherein at least one CRC of the second DCI is scrambled with at least one of a second C-RNTI or a second MCS-C-RNTI.
18 . The base station of claim 16 ,
wherein the instructions further cause the base station to activate or release semi-persistent scheduling (SPS) PDSCHs on at least one serving cell based on a physical downlink control channel (PDCCH) for the first DCI,
wherein the first DCI includes a first field indicating one or more scheduled cells and a second field indicating one or more start and length indicator value (SLIV) entries, and
wherein the at least one serving cell is associated with at least one of the first field or the second field of the first DCI.
19 . The base station of claim 18 , wherein the at least one serving cell is associated with a cell with a smallest cell index or a largest cell index of the one or more scheduled cells indicated by the first field of the first DCI.
20 . The base station of claim 16 , wherein the UE is configured with second information on a number of repetitions for data, and
wherein the multiple PDSCHs are transmitted based on the second information on the number of the repetitions.