PUSCH Transmit Power Calculator

Author: Dustin_Chen, email: Dustin_Chen@compal.com or chuhpsdustin@gmail.com

• 【Spec】: ETSI TS 138 213 / chap 7 Uplink Power control / sec 7.1 Physical uplink shared channel
  
• 【Formula】:PUSCH_Transmit_Power = p0-NominalWithGrant + p0 + 10 * log(2^μ* NumRB ) + alpha * Pathloss + Delta_TF + TPC_Adjustment
  • Enter the following parameters, and press "Calculate" to get the PUSCH power
    • p0nominal (-202 to 24)：
      
    • p0 (-16 to 15)：
      
    • μ (SCS configuration)：
      
    • Num RB (PUSCH Data)：
      
    • alpha (can be 0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1)：
      
    • Pathloss (=nSsbPwr - RSRP)：
      
    • Delta TF(if more than one layer Delta_TF=0)：
      
    • TPC Adjustment (need to enable featureSetBitMap "RGR_PUSCH_CLOSE_LOOP_PWR_CNTRL_ENABLE" )：
      
    Calculate

=====================================================================================
//log-20240516-101712_teak_n78_cpe_camp● 05-16.10-18-25-680.hdf

2024/04/13 01:37:32.820	[0xB821]	BCCH_DL_SCH / SystemInformationBlockType1
              pusch-ConfigCommon setup : 
                {
                  p0-NominalWithGrant -74 ●
                },

2024/04/13 01:37:32.964	[0xB821]	DL_CCCH / RRC Setup
                                  p0 -10, ●
                                  alpha alpha1 ●
								  
//(685,9)
01:37:32.995767	[0xB883]	NR5G MAC UL Physical Channel Schedule Report
      System Time {
         Slot = 9
         Numerology = 30kHz ●
         Frame = 685
      }
            Num RBs =      24 ●
		 
//(685,9)	
// ●PUSCH_Tx_Power = Pcmax - PHR = 20-24 = -4 dBm 接近 -5 驗證成立！
01:37:33.020	[0xB8D2]	NR5G LL1 FW MAC TX IU Power
         Log Header {
            System Frame Number = 685
            Slot Number = 9
         }
         Power Info[0] {
            Carrier Id = 0
            Channel Type = PUSCH ●
            PUSCH Data {
               Transmit Power = -5 ●
               Pathloss = 63 ●
               TPC Adjustment = 0 ●
               PHR MTPL = 20 ●
               Delta TF = -1 ●
               Is Msg3 = 0
               Minimum Power = -38
            }
			
//(685,9)	
2024/04/13 01:37:33.147	[0xB872]	NR5G L2 UL TB
   TTI Info[0] {
      TTI Info Meta {
         Sys Time {
            Slot Number =     9
            FN =    685
         }
            McePayload[1] {
               MCE Type =    S-PHR
               SinglePhr {
                  PH = 56       	●24 dB <= PH < 26 dB (56)
                  Pcmax fc = 50 	●Pcmax,c,f: 20 dBm <= Pcmax,f,c < 21 dBm (50)
                  R = 0
               }
=====================================================================================
// (wireshark bbuiolog.pcap) keyword: mac-nr.ulsch.lcid == 0x39 || mac-nr.control.se-phr.ph || mac-nr.control.se-phr.pcmax_f_c
No.	Protocol	Info	SFN	SF	Slot Index
105236	PDCP-NR	UEId=17017  [UL] [AM] SRB:1  [DATA] (P) SN=0               [33-bytes]  (Short BSR LCG ID=0 BS=0)   (PHR PH=56 PCMAX_f_c=50)   (Padding 226 bytes) 	685	4	1

Subheader: (PHR PH=56 PCMAX_f_c=50) 
    00.. .... = Reserved: 0x00
    ..11 1001 = LCID: Single Entry PHR (0x39)
    00.. .... = Reserved: 0x0
    ..11 1000 = Power Headroom: 24 dB <= PH < 26 dB (56)     ●PH = 56
    00.. .... = Reserved: 0x0
    ..11 0010 = Pcmax,c,f: 20 dBm <= Pcmax,f,c < 21 dBm (50)  ●Pcmax fc = 50
=====================================================================================