Method and apparatus for power control of wireless communications
A method performed by a user equipment (UE) is disclosed. The method includes receiving, using a first RAT, first SCI including a first priority value, and receiving, using a second RAT, second SCI including a second priority value. The method also includes determining whether to drop one of a transmission of a first physical channel derived from the first SCI and a transmission of a second physical channel derived from the second SCI based on the first priority value and the second priority value when the first physical channel overlaps the second physical channel in the time domain.
1. A user equipment (UE) comprising:
one or more non-transitory computer-readable media having computer-executable instructions embodied thereon; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to:
receive, using a first Radio Access Technology (RAT), first Sidelink (SL) Control Information (SCI) comprising a first priority value associated with the first RAT, the first SCI having a first SCI format;
receive, using a second RAT, second SCI comprising a second priority value associated with the second RAT, the second SCI having a second SCI format which is different from the first SCI format; and
when a transmission of a first physical channel derived from the first SCI and a transmission of a second physical channel derived from the second SCI overlaps in a time domain:
determine a priority order of the first RAT and the second RAT by comparing the first priority value with the second priority value; and
determine to drop one of a transmission of the first physical channel derived from the first SCI and the transmission of the second physical channel derived from the second SCI according to the priority order.
2. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
receive Downlink Control Information (DCI) from a base station (BS); and
determine whether to perform a power boosting operation of one of a reference signal and a physical channel for an SL based on an indication of the DCI.
3. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
obtain a power boosting parameter which is configured based on a resource pool or based on an anchor carrier, the power boosting parameter indicating a power boosting level; and
determine a transmit power of one of a reference signal and a physical channel for an SL based on the power boosting level.
4. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine whether to perform a power boosting operation of one of a reference signal and a physical channel for an SL based on an indication contained in a logical channel configuration.
5. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine a pathloss value for an SL based on a reference signal index,
wherein the reference signal index is associated with a reference signal of a most recent Master Information Block-SL (MIB-SL) successfully decoded by the UE.
6. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine a pathloss value for an SL based on a Synchronization Signal Block (SSB) which is associated with a Physical Downlink Shared Channel (PDSCH) on which the UE receives a System Information Block (SIB).
7. The UE of claim 1 , wherein the at least one processor is further configured to execute the computer-executable instructions to:
determine a pathloss value for an SL based on a Synchronization Signal Block (SSB) associated with a Physical Downlink Control Channel (PDCCH) containing scheduling information of a System Information Block (SIB).
8. A method performed by a user equipment (UE), the method comprising:
receiving, using a first Radio Access Technology (RAT), first Sidelink (SL) Control Information (SCI) comprising a first priority value associated with the first RAT, the first SCI having a first SCI format;
receiving, using a second RAT, second SCI comprising a second priority value associated with the second RAT, the second SCI having a second SCI format which is different from the first SCI format; and
when a transmission of a first physical channel derived from the first SCI and a transmission of a second physical channel derived from the second SCI overlaps in a time domain:
determining a priority order of the first RAT and the second RAT by comparing the first priority value with the second priority value; and
determining to drop one of the transmission of the first physical channel derived from the first SCI and the transmission of the second physical channel derived from the second SCI according to the priority order.
9. The method of claim 8 , further comprising:
receiving Downlink Control Information (DCI) from a base station (BS); and
determining whether to perform a power boosting operation of one of a reference signal and a physical channel for a Sidelink (SL) based on an indication of the DCI.
10. The method of claim 8 , further comprising:
obtaining a power boosting parameter which is configured based on a resource pool or based on an anchor carrier basis, wherein the power boosting parameter indicating a power boosting level; and
determining a transmit power of a reference signal or a physical channel for an SL based on the power boosting level.
11. The method of claim 8 , further comprising:
determining whether to perform a power boosting operation of one of a reference signal and a physical channel for an SL based on an indication contained in a logical channel configuration.
12. The method of claim 8 , further comprising:
determining a pathloss value for an SL based on a reference signal index,
wherein the reference signal index is associated with a reference signal of a most recent Master Information Block-SL (MIB-SL) successfully decoded by the UE.
13. The method of claim 8 , further comprising:
determining a pathloss value for an SL based on a Synchronization Signal Block (SSB) which is associated with a Physical Downlink Shared Channel (PDSCH) on which the UE receives a System Information Block (SIB).
14. The method of claim 8 , further comprising:
determining a pathloss value for an SL based on a Synchronization Signal Block (SSB) associated with a Physical Downlink Control Channel (PDCCH) containing scheduling information of a System Information Block (SIB).