Method and apparatus for handling repetitions of physical uplink shared channel (PUSCH) transmission in a wireless communication system
A method performed by a BS for handling repetitions of transmissions is provided. The method includes transmitting an RRC configuration including a first parameter configured with a first value and a second parameter configured with at least one second value; and transmitting DCI on a PDCCH scheduling a PUSCH transmission. The DCI enables the UE to select one of the first parameter and the second parameter to determine a number of PUSCH repetitions; determine the number of PUSCH repetitions as the first value when the first parameter is selected; determine the number of PUSCH repetitions as one of the at least one second value indicated by the DCI when the second parameter is selected; and perform the PUSCH transmission for a number of times based on the number of PUSCH repetitions. A BS using the aforementioned method is also provided.
1. A method performed by a Base Station (BS) for handling repetitions of transmissions in a wireless communication system, the method comprising:
transmitting, to a User Equipment (UE), a Radio Resource Control (RRC) configuration comprising a first parameter configured with a first value and a second parameter configured with at least one second value, each of the first value and the at least one second value indicating a number of Physical Uplink Shared Channel (PUSCH) repetitions; and
transmitting, to the UE, Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) scheduling a PUSCH transmission,
wherein the DCI enables the UE to:
select one of the first parameter and the second parameter to determine the number of PUSCH repetitions for the PUSCH transmission;
determine the number of PUSCH repetitions for the PUSCH transmission as the first value when the first parameter is selected;
determine the number of PUSCH repetitions for the PUSCH transmission as one of the at least one second value indicated by the DCI when the second parameter is selected; and
perform the PUSCH transmission for a number of times based on the determined number of PUSCH repetitions for the PUSCH transmission.
2. The method of claim 1 , wherein the DCI further enables the UE to:
select the second parameter to determine the number of PUSCH repetitions for the PUSCH transmission when the DCI has a DCI format associated with the second parameter and comprises an index indicating the one of the at least one second value.
3. The method of claim 2 , wherein the second parameter defines an association between the index and a set of values including a third value indicating a starting symbol of the PUSCH transmission and a fourth value indicating a number of consecutive symbols of the PUSCH transmission.
4. The method of claim 1 , wherein the first parameter and the second parameter are configured per a Bandwidth Part (BWP) basis.
5. A Base Station (BS) for handling repetitions of transmissions in a wireless communication system, the BS comprising:
one or more non-transitory computer-readable media storing one or more computer-executable instructions; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the one or more computer-executable instructions to:
transmit, to a User Equipment (UE), a Radio Resource Control (RRC) configuration comprising a first parameter configured with a first value and a second parameter configured with at least one second value, each of the first value and the at least one second value indicating a number of Physical Uplink Shared Channel (PUSCH) repetitions; and
transmit, to the UE, Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) scheduling a PUSCH transmission,
wherein the DCI enables the UE to:
select one of the first parameter and the second parameter to determine the number of PUSCH repetitions for the PUSCH transmission;
determine the number of PUSCH repetitions for the PUSCH transmission as the first value when the first parameter is selected;
determine the number of PUSCH repetitions for the PUSCH transmission as one of the at least one second value indicated by the DCI when the second parameter is selected; and
perform the PUSCH transmission for a number of times based on the determined number of PUSCH repetitions for the PUSCH transmission.
6. The method of claim 5 , wherein the DCI further enables the UE to:
select the second parameter to determine the number of PUSCH repetitions for the PUSCH transmission when the DCI has a DCI format associated with the second parameter and comprises an index indicating the one of the at least one second value.
7. The method of claim 6 , wherein the second parameter defines an association between the index and a set of values including a third value indicating a starting symbol of the PUSCH transmission and a fourth value indicating a number of consecutive symbols of the PUSCH transmission.
8. The method of claim 5 , wherein the first parameter and the second parameter are configured per a Bandwidth Part (BWP) basis.