Power control parameter set and a pathloss reference signal for a wireless device
A wireless device receives one or more radio resource control (RRC) messages. The one or more RRC messages comprise configuration parameters, for physical uplink shared channel (PUSCH), indicating: a plurality of power control parameter sets; and a plurality of pathloss reference signals (RSs). A medium access control control element (MAC CE) is received. The MAC CE indicates: an identity of a power control parameter set of the plurality of power control parameter sets; and a pathloss RS, of the plurality of pathloss RSs, associated with the power control parameter set. A downlink control information is received. The downlink control information indicates: the identity of the power control parameter set; and one or more uplink resources of the PUSCH. A transport block with a transmission power determined based on the pathloss RS associated with the power control parameter set is transmitted via the one or more uplink resources.
1. A method comprising:
receiving, by a wireless device, one or more radio resource control (RRC) messages comprising configuration parameters, for physical uplink shared channel (PUSCH), indicating:
a plurality of power control parameter sets; and
a plurality of pathloss reference signals (RSs);
receiving a medium access control control element (MAC CE) indicating:
an identity of a power control parameter set of the plurality of power control parameter sets; and
a pathloss RS, of the plurality of pathloss RSs, associated with the power control parameter set;
receiving a downlink control information indicating:
the identity of the power control parameter set; and
one or more uplink resources of the PUSCH; and
transmitting, via the one or more uplink resources, a transport block with a transmission power determined based on the pathloss RS associated with the power control parameter set.
2. The method of claim 1 , wherein each of the plurality of power control parameter sets comprises an identifier of one of the plurality of pathloss RSs.
3. The method of claim 1 , wherein the power control parameter set comprises an identifier of the pathloss RS.
4. The method of claim 1 , wherein each of the plurality of power control parameter sets comprises one or more of:
an identifier of a pathloss RS of the plurality of pathloss RSs;
an identifier of an alpha set for a PUSCH pathloss estimation; and
an identifier of a closed loop power control index for the PUSCH pathloss estimation.
5. The method of claim 1 , wherein the downlink control information comprises a sounding reference signal resource indicator.
6. The method of claim 5 , wherein the sounding reference signal resource indicator indicates the power control parameter set.
7. The method of claim 1 , wherein the MAC CE comprises a serving cell identity.
8. The method of claim 1 , wherein the one or more uplink resources comprise:
one or more frequency domain resources; and
one or more time domain resources.
9. The method of claim 1 , wherein the identity of the power control parameter set comprise an index of the power control parameter set.
10. The method of claim 1 , further comprising determining the transmission power based on the power control parameter set.
11. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more radio resource control (RRC) messages comprising configuration parameters, for physical uplink shared channel (PUSCH), indicating:
a plurality of power control parameter sets; and
a plurality of pathloss reference signals (RSs);
receive a medium access control control element (MAC CE) indicating:
an identity of a power control parameter set of the plurality of power control parameter sets; and
a pathloss RS, of the plurality of pathloss RSs, associated with the power control parameter set;
receive a downlink control information indicating:
the identity of the power control parameter set; and
one or more uplink resources of the PUSCH; and
transmit, via the one or more uplink resources, a transport block with a transmission power determined based on the pathloss RS associated with the power control parameter set.
12. The wireless device of claim 11 , wherein each of the plurality of power control parameter sets comprises an identifier of one of the plurality of pathloss RSs.
13. The wireless device of claim 11 , wherein the power control parameter set comprises an identifier of the pathloss RS.
14. The wireless device of claim 11 , wherein each of the plurality of power control parameter sets comprises one or more of:
an identifier of a pathloss RS of the plurality of pathloss RSs;
an identifier of an alpha set for a PUSCH pathloss estimation; and
an identifier of a closed loop power control index for the PUSCH pathloss estimation.
15. The wireless device of claim 11 , wherein the downlink control information comprises a sounding reference signal resource indicator.
16. The wireless device of claim 15 , wherein the sounding reference signal resource indicator indicates the power control parameter set.
17. The wireless device of claim 11 , wherein the MAC CE comprises a serving cell identity.
18. The wireless device of claim 11 , wherein the one or more uplink resources comprise:
one or more frequency domain resources; and
one or more time domain resources.
19. The wireless device of claim 11 , wherein the identity of the power control parameter set comprise an index of the power control parameter set.
20. A system comprising:
a base station comprising:
one or more first processors; and
first memory storing first instructions that, when executed by the one or more first processors, cause the base station to:
transmit one or more radio resource control (RRC) messages comprising configuration parameters, for physical uplink shared channel (PUSCH), indicating:
a plurality of power control parameter sets; and
a plurality of pathloss reference signals (RSs);
transmit a medium access control control element (MAC CE) indicating:
an identity of a power control parameter set of the plurality of power control parameter sets; and
a pathloss RS, of the plurality of pathloss RSs, associated with the power control parameter set; and
transmit a downlink control information indicating:
the identity of the power control parameter set; and
one or more uplink resources of the PUSCH; and
a wireless device comprising:
one or more second processors; and
second memory storing second instructions that, when executed by the one or more second processors, cause the wireless device to:
receive the one or more RRC messages;
receive the MAC CE;
receive the downlink control information; and
transmit, via the one or more uplink resources, a transport block with a transmission power determined based on the pathloss RS associated with the power control parameter set.