Method and device for repeatedly transmitting uplink channel in wireless communication system
A method for a terminal to repeatedly transmit an uplink channel in a wireless communication system includes: an uplink channel mapping step for mapping one uplink channel to a plurality of transmission occasions (TO) associated with a plurality of transmission units (TU) that are fewer in number than the plurality of TOs, wherein each of one or more specific TUs among the plurality of TUs includes two or more contiguous TOs; a step for mapping a spatial relation reference signal (RS) to each of the plurality of TOs; and a step for transmitting the one uplink channel to a base station at each of the plurality of TOs on the basis of the spatial relation reference signals, wherein the spatial relation reference signals to be mapped to the two or more contiguous TOs included in the one or more specific TUs may be identical or different.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a network, configuration information including a parameter of a number of repetitions related to a physical uplink shared channel (PUSCH), wherein a number of configured repetitions is given by the parameter of the number of repetitions, wherein a configured repetition includes one or more actual repetitions, each actual repetition includes at least one symbol within a slot, the configured repetitions include at least one configured repetition each including multiple actual repetitions and another at least one configured repetition each including one actual repetition;
receiving, from the network, a single downlink control information (DCI) including one or more sounding reference signal (SRS) resource indicators (SRIs);
applying the one or more SRIs given by the single DCI to the configured repetitions according to an associated SRS resource set of each of the configured repetitions; and
transmitting, to the network, a transport block (TB) repeatedly across the actual repetitions,
wherein, based on multiple SRS resource sets being configured, an association of the multiple SRS resource sets to the configured repetitions is based on a predetermined mapping pattern,
wherein, based on the multiple SRS resource sets including a first SRS resource set and a second SRS resource set, the predetermined mapping pattern is:
a first mapping pattern of the first SRS resource set and the second SRS resource set being applied to an earliest configured repetition and a next configured repetition, respectively, and the first mapping pattern being further applied to at least one remaining configured repetition, or
a second mapping pattern of the first SRS resource set being applied to earliest multiple configured repetitions, and the second SRS resource set being applied to next multiple configured repetitions, and the second mapping pattern being further applied to at least one remaining configured repetition.
2. The method of claim 1 ,
wherein the multiple actual repetitions included in a same configured repetition are associated with a same SRS resource set.
3. A terminal in a wireless communication system, the terminal comprising:
at least one transceiver; and
at least one processor connected to the at least one transceiver,
wherein the at least one processor is configured to:
receive, from a network, through the at least one transceiver, configuration information including a parameter of a number of repetitions related to a physical uplink shared channel (PUSCH), wherein a number of configured repetitions is given by the parameter of the number of repetitions, and wherein a configured repetition includes one or more actual repetitions, each actual repetition includes at least one symbol within a slot, the configured repetitions include at least one configured repetition each including multiple actual repetitions and another at least one configured repetition each including one actual repetition;
receive, from the network, through the at least one transceiver, a single downlink control information (DCI) including one or more sounding reference signal (SRS) resource indicators (SRIs);
apply the one or more SRIs given by the single DCI to the configured repetitions according to an associated SRS resource set of each of the configured repetitions; and
transmit, to the network, through the at least one transceiver, a transport block (TB) repeatedly across the actual repetitions,
wherein, based on multiple SRS resource sets being configured, an association of the multiple SRS resource sets to the configured repetitions is based on a predetermined mapping pattern,
wherein, based on the multiple SRS resource sets including a first SRS resource set and a second SRS resource set, the predetermined mapping pattern is:
a first mapping pattern of the first SRS resource set and the second SRS resource set being applied to an earliest configured repetition and a next configured repetition, respectively, and the first mapping pattern being further applied to at least one remaining configured repetition, or
a second mapping pattern of the first SRS resource set being applied to earliest multiple configured repetitions, and the second SRS resource set being applied to next multiple configured repetitions, and the second mapping pattern being further applied to at least one remaining configured repetition.
4. A base station in a wireless communication system, the base station comprising:
at least one transceiver; and
at least one processor connected to the at least one transceiver,
wherein the at least one processor is configured to:
transmit, from a terminal, through the at least one transceiver, configuration information including a parameter of a number of repetitions related to a physical uplink shared channel (PUSCH), wherein a number of configured repetitions is given by the parameter of the number of repetitions, and wherein a configured repetition includes one or more actual repetitions, each actual repetition includes at least one symbol within a slot, the configured repetitions include at least one configured repetition each including multiple actual repetitions and another at least one configured repetition each including one actual repetition;
transmit, to the terminal, through the at least one transceiver, a single downlink control information (DCI) including one or more sounding reference signal (SRS) resource indicators (SRIs); and
receive, from the terminal, through the at least one transceiver, a transport block (TB) repeatedly across the actual repetitions, wherein the one or more SRIs given by the single DCI are applied to the configured repetitions according to an associated SRS resource set of each of the configured repetitions,
wherein, based on multiple SRS resource sets being configured, an association of the multiple SRS resource sets to the configured repetitions is based on a predetermined mapping pattern,
wherein, based on the multiple SRS resource sets including a first SRS resource set and a second SRS resource set, the predetermined mapping pattern is:
a first mapping pattern of the first SRS resource set and the second SRS resource set being applied to an earliest configured repetition and a next configured repetition, respectively, and the first mapping pattern being further applied to at least one remaining configured repetition, or
a second mapping pattern of the first SRS resource set being applied to earliest multiple configured repetitions, and the second SRS resource set being applied to next multiple configured repetitions, and the second mapping pattern being further applied to at least one remaining configured repetition.