Transmission Power Determination for Uplink Signals

Abstract

A wireless device receives one or more messages comprising one or more configuration parameters indicating an association between one or more transmission configuration indication (TCI) states and one or more power control parameter sets, wherein each power control parameter set comprises a pathloss factor, a received power value, and a closed-loop index. The wireless device receives a downlink control message indicating a TCI state among the one or more TCI states, wherein the TCI state is associated with a power control parameter set, among the one or more power control parameter sets, comprising a first pathloss factor, a first received power value, and a first closed-loop index. The wireless device transmits an uplink signal using a transmission power determined based on the first pathloss factor, the first received power value, and the first closed-loop index.

What is claimed is: 
     
         1 . A method comprising:
 receiving, by a wireless device, one or more messages comprising one or more configuration parameters indicating an association between one or more transmission configuration indication (TCI) states and one or more power control parameter sets, wherein each power control parameter set comprises a pathloss factor, a received power value, and a closed-loop index;   receiving a downlink control message indicating a TCI state among the one or more TCI states, wherein the TCI state is associated with a power control parameter set, among the one or more power control parameter sets, comprising a first pathloss factor, a first received power value, and a first closed-loop index; and   transmitting an uplink signal using a transmission power determined based on:
 the first pathloss factor; 
 the first received power value; and 
 the first closed-loop index. 
   
     
     
         2 . The method of  claim 1 , wherein each of the one or more TCI states is associated with at least one power control parameter set of the one or more power control parameter sets. 
     
     
         3 . The method of  claim 1 , wherein each of the one or more TCI states is associated with one or more reference signals. 
     
     
         4 . The method of  claim 3 , wherein the one or more reference signals comprise at least one of:
 a synchronization signal block (SSB);   a channel state information reference signal (CSI-RS); or a sounding reference signal (SRS).   
     
     
         5 . The method of  claim 1 , wherein the uplink signal is transmitted in one or more repetition transmission occasions. 
     
     
         6 . The method of  claim 5 , wherein the transmission power comprises one or more different uplink transmission powers for the one or more repetition transmission occasions. 
     
     
         7 . The method of  claim 5 , wherein:
 the transmission power comprises one or more different uplink transmission powers, and   each uplink transmission power, of the one or more different uplink transmission powers, is for a respective repetition transmission occasion of the one or more repetition transmission occasions.   
     
     
         8 . The method of  claim 1 , wherein the downlink control message comprises one or more bitfields indicating the TCI state. 
     
     
         9 . 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 messages comprising one or more configuration parameters indicating an association between one or more transmission configuration indication (TCI) states and one or more power control parameter sets, wherein each power control parameter set comprises a pathloss factor, a received power value, and a closed-loop index; 
 receive a downlink control message indicating a TCI state among the one or more TCI states, wherein the TCI state is associated with a power control parameter set, among the one or more power control parameter sets, comprising a first pathloss factor, a first received power value, and a first closed-loop index; and 
 transmit an uplink signal using a transmission power determined based on:
 the first pathloss factor; 
 the first received power value; and 
 the first closed-loop index. 
 
   
     
     
         10 . The wireless device of  claim 9 , wherein each of the one or more TCI states is associated with at least one power control parameter set of the one or more power control parameter sets. 
     
     
         11 . The wireless device of  claim 9 , wherein each of the one or more TCI states is associated with one or more reference signals. 
     
     
         12 . The wireless device of  claim 11 , wherein the one or more reference signals comprise at least one of:
 a synchronization signal block (SSB);   a channel state information reference signal (CSI-RS); or   a sounding reference signal (SRS).   
     
     
         13 . The wireless device of  claim 9 , wherein the uplink signal is transmitted in one or more repetition transmission occasions. 
     
     
         14 . The wireless device of  claim 13 , wherein the transmission power comprises one or more different uplink transmission powers for the one or more repetition transmission occasions. 
     
     
         15 . The wireless device of  claim 13 , wherein:
 the transmission power comprises one or more different uplink transmission powers, and   each uplink transmission power, of the one or more different uplink transmission powers, is for a respective repetition transmission occasion of the one or more repetition transmission occasions.   
     
     
         16 . The wireless device of  claim 9 , wherein the downlink control message comprises one or more bitfields indicating the TCI state. 
     
     
         17 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:
 receive one or more messages comprising one or more configuration parameters indicating an association between one or more transmission configuration indication (TCI) states and one or more power control parameter sets, wherein each power control parameter set comprises a pathloss factor, a received power value, and a closed-loop index;   receive a downlink control message indicating a TCI state among the one or more TCI states, wherein the TCI state is associated with a power control parameter set, among the one or more power control parameter sets, comprising a first pathloss factor, a first received power value, and a first closed-loop index; and   transmit an uplink signal using a transmission power determined based on:
 the first pathloss factor; 
 the first received power value; and 
 the first closed-loop index. 
   
     
     
         18 . The non-transitory computer-readable medium of  claim 17 , wherein each of the one or more TCI states is associated with at least one power control parameter set of the one or more power control parameter sets. 
     
     
         19 . The non-transitory computer-readable medium of  claim 17 , wherein each of the one or more TCI states is associated with one or more reference signals. 
     
     
         20 . The non-transitory computer-readable medium of  claim 17 , wherein the uplink signal is transmitted in one or more repetition transmission occasions.