Systems and methods for uplink transmission power control

Abstract

Uplink Transmission Power Control (TPC) techniques configured to compensate for variations in path loss and/or interference on a plurality of uplink transmission beams.

What is claimed is: 
     
         1 - 32 . (canceled) 
     
     
         33 . An apparatus of a user equipment (UE) operable to configure uplink transmission power in a multi-beam system, the UE comprising:
 one or more processors configured to,
 decode, at the UE, higher level signaling received from a Base Station (BS) including one or more power control factors for corresponding ones of a plurality of uplink transmission beams; 
 estimate, at the UE, a path loss for corresponding ones of the plurality of uplink transmission beams; and 
 determine, at the UE, a transmission power of one or more of the plurality of uplink transmission beams as a function of the one or more decoded power control factors and the estimated path loss of the corresponding ones of the plurality of uplink transmission beams; and 
   a memory interface configured to send to a memory one or more indicators of the determined transmission power of the corresponding ones of the plurality of uplink transmission beams.   
     
     
         34 . The apparatus of  claim 33 , wherein the one or more processors are further configured to encode an uplink signal for transmission on one or more of the plurality of uplink transmission beams based on the determined transmission power of the corresponding ones of the plurality of uplink transmission beams. 
     
     
         35 . The apparatus of  claim 33 , wherein the determined transmission power can be used for an Open Loop Power Control (OLPC) portion of a Transmit Power Control (TPC). 
     
     
         36 . The apparatus of  claim 33 , wherein the one or more power control factors includes a resource block power (P 0 ) for each of the plurality of uplink transmission beams. 
     
     
         37 . The apparatus of  claim 36 , wherein the resource block power (P 0 ) is a function of one or more of an interference, a thermal noise and a target signal interference noise ratio for each of the plurality of uplink transmission beams. 
     
     
         38 . The apparatus of  claim 36 , wherein the one or more power control factors includes a path loss compensation factor (α) for each of a plurality of uplink transmission beams. 
     
     
         39 . The apparatus of  claim 33 , wherein a first set of one or more power control factors are decoded for a first waveform used for a first one of the plurality of uplink transmission beams, and a second set of one or more power control factor are decoded for a second waveform used for a second one of the plurality of uplink transmission beams. 
     
     
         40 . The apparatus of  claim 33 , wherein the higher level signaling includes one or more of a System Information Block (SIB), a Master Information Block (MIB), a Radio Resource Control (RRC), or a Media Access Control (MAC) Control Element (CE). 
     
     
         41 . The apparatus of  claim 33 , wherein the transmission power of the one or more of the plurality of uplink transmission beams are each determined independently based on one or more of a target receive power, a path loss compensation factor (α), a power offsets and an accumulation flag, for one or more uplink data channels and uplink control channels. 
     
     
         42 . An apparatus of a user equipment (UE) operable to configure uplink transmission power in a multi-beam system, the UE comprising:
 one or more processors configured to,
 decode, at the UE, higher level signaling received from a Base Station (BS) including one or more power control factors common for a plurality of uplink transmission beams; 
 decode, at the UE, higher level signaling received from the base station including one or more offset power control factors for corresponding ones of a plurality of uplink transmission beams; 
 estimate, at the UE, a path loss for corresponding ones of the plurality of uplink transmission beams; and 
 determine, at the UE, a transmission power of one or more of the plurality of uplink transmission beams as a function of the decoded common power control factor, the offset power control factors for corresponding ones of a plurality of uplink transmission beams, and the estimated path loss of the corresponding ones of the plurality of uplink transmission beams; and 
   a memory interface configured to send to a memory one or more indicators of the determined transmission power of the corresponding ones of the plurality of uplink transmission beams.   
     
     
         43 . The apparatus of  claim 42 , wherein the one or more processors are further configured to transmit on one or more of the plurality of uplink transmission beams based on the determined transmission power of the corresponding ones of the plurality of uplink transmission beams. 
     
     
         44 . The apparatus of  claim 42 , wherein the common power control factors include a common resource block power (P 0 ) for the plurality of uplink transmission beams. 
     
     
         45 . The apparatus of  claim 44 , wherein the one or more offset power control factors for corresponding ones of the plurality of uplink transmission beams are a function of a difference in resource block power (P 0 ) for corresponding ones of the plurality of uplink transmission beams. 
     
     
         46 . The apparatus of  claim 44 , wherein the resource block power (P 0 ) is a function of one or more of an interference, a thermal noise and a target signal interference noise ratio for the plurality of uplink transmission beams. 
     
     
         47 . The apparatus of  claim 44 , wherein the common power control factor includes a path loss compensation factor (α) for the plurality of uplink transmission beams. 
     
     
         48 . The apparatus of  claim 42 , wherein a first set of one or more power control factors are decoded for a first waveform used for a first one of the plurality of uplink transmission beams, and a second set of one or more power control factor are decoded for a second waveform used for a second one of the plurality of uplink transmission beams. 
     
     
         49 . The apparatus of  claim 42 , wherein the higher level signaling includes one or more of a System Information Block (SIB), a Master Information Block (MIB), a Radio Resource Control (RRC), or a Media Access Control (MAC) Control Element (CE). 
     
     
         50 . The apparatus of  claim 42 , wherein the transmission power of the one or more of the plurality of uplink transmission beams are each determined independently based on one or more of a target receive power, a path loss compensation factor (α), a power offsets and an accumulation flag, for one or more uplink data channels and uplink control channels. 
     
     
         51 . An apparatus of a user equipment (UE) operable to configure uplink transmission power in a multi-beam system, the UE comprising:
 one or more processors configured to,
 decode, at the UE, higher level signaling received from a Base Station (BS) including one or more power control factors of a plurality of Beam Management Signals (BMS); 
 estimate, at the UE, a path loss for corresponding ones of the plurality of Beam Management Signals (BMS); 
 determine, at the UE, a k th  least path loss (PL k     th   ) for the plurality of Uplink Beam Management Signals (UL BMS); and 
 determine, at the UE, a transmission power of corresponding ones of the plurality of Uplink Beam Management Signals (UL BMS) as a function of the one or more decoded power control factors and the determined k th  least path loss (PL k     th   ) of the Downlink Beam Measurement Reference Signal (DL BM RS); and 
   a memory interface configured to send to a memory one or more indicators of the determined transmission power of the corresponding ones of the plurality of Uplink Beam Management Signals (UL BMS).   
     
     
         52 . The apparatus of  claim 51 , wherein one or more power control factors can be configured independently for different Beam Management Signals (BMS). 
     
     
         53 . The apparatus of  claim 51 , wherein the resource block power (P 0 ) is a function of one or more of an interference, a thermal noise and a target signal interference noise ratio for each of the plurality of Uplink Beam Management Signals (UL BMS). 
     
     
         54 . The apparatus of  claim 51 , wherein the transmission power is further determined as a function of a power control offset ({circumflex over (λ)}). 
     
     
         55 . The apparatus of  claim 51 , wherein the transmission power is further determined as a function of a first power control offset ({circumflex over (λ)} r ) configured by higher level signaling and a second power control offset ({circumflex over (Δ)} d ) configured by Downlink Control Information (DCI). 
     
     
         56 . The apparatus of  claim 51 , wherein the one or more processors are further configured to transmit on one or more of the of the plurality of Uplink Beam Management Signals (UL BMS) based on the determined transmission power of the corresponding ones of the plurality of Uplink Beam Management Signals (UL BMS). 
     
     
         57 . The apparatus of  claim 51 , wherein the plurality of Uplink Beam Management Signals (UL BMS) includes a Physical Random Access Channel (PRACH), a Sounding Reference Signal (SRS), or Physical Uplink Control Channel (PUCCH).