1 0 000001 000000 2 0 –26 –28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 10 2 下表为RxGainA（CSP部分）的放大增益控制词：
Gain in CSP1093 (dB) 0 2 4 6 8 10 12 14 16 18 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X C3 C2 C1 C0 7 6 5 4 3 2 1 0 RxGainA Decimal 0 256 512 768 1024 1280 1536 1792 2048 2304 下图为接收放大器的接收特性，在不同的信道有不同的放大增益，为了获得更准确地增益，应该把他们考虑进去，在下面关键的校准步骤中会介绍。
Sub-Bands
RSS 2 5 0 3 6 7 1 4 2dB
1010 975 1018 7 12 24 40 5124 Channe
关键的校准步骤： 1）、设置工作点（Setworkingpoint）
Setworkingpoint主要的目的是寻找CSP.ADC处信号电平在-20dBfs时且通道增益已定义的情况下的Cellpower。这样，通道增益就包含有前置低噪放大器的增益，直接变频器的增益和22dB的HD155141TF内部的基带增益，但不包括CSP的基带增益，其手机接受的控制词（RxGainA = 0，RxGainB = 202）。选一个任意的测试信道，例如：A9/A90的就选择975信道，这是由于低信道的决定了频率边带的补偿。 1/发送PTE指令ReadRSS,
975,0,0,202,975,0,0,202,975,0,0,202,975,0,0,202
2/读取结果算出平均值并转换成dBfs单位，公式：10 log ((Reading1 + Reading2 + Reading3 + Reading4) / (4 * 32767))
3/如果计算出的结果偏离-20dBfs的0.2dB，就得调整信号发生器的信号电平，然后重复测试。 4/记录下信号发生器的信号电平 2）、测试边带信道（Measure band ripple for EGSM band）
目的是计算在相同的通道增益和相同的信号强度条件下，其通道放大器对不同频段的响应的补偿，即将偏差范围较大的响应曲线纠正在一定的范围如上图
1/发送PTE指令ReadRSS,Chan No,0,0,202,Chan No,0,0,202,Chan No 0,0,202,Chan No,0,0,202
2/读取结果并将其转换为dBfs单位（取平均值）
3/测试每个边缘信道，根据公式：Sub–Band Average = (Average Lower Channel + Average Upper Channel) / 2算出这个频段的平均值，再根据公式：Overall Band Mean = Sum of Sub–Band Mean Column / 8计算出这8组频段的平均值。
4/计算频段补偿，根据公式：（每个频段的平均值-8组频段的平均值）*16,并记录下参数 3）、测试Rx基本通道增益(LNA开启)(Calculate the EGSM Basic Rx Path Gain for LNA on case)
已知：Channel=62 ；取基本通道增益BB_Gain =12 ，因此基本通道开关增益为12-（-28）=40（因为通道增益关闭时增益为-28dBm）
1/根据已知的-54.5dBm 对应的BB_Gain数值202 ，换算成BB_Gain数值162时，信号发生器的信号电平
公式：-54.5 + ((202-2)/8) - ((162-2)/8)
2/发送PTE指令，ReadRSS,62,0,0,162,62,0,0,162,62,0,0,162,62,0,0,162
3/读取结果并将其转换成dBfs单位，（Mean）
4/取出原先计算的现在测试信道所对应的频段补偿 5/计算基本通道增益，Basic Rx Path Gain= Mean-换算出来的信号发生器的信号电平-基带部分的开关增益-频段补偿
6/将其结果乘以16，保存下来。 4）、测试基本通道的补偿值（Calculate the BB_Gain compensation values） 已知：Channel=62，BB_Gain=-16 dB (RxGainA = 0, RxGainB = 50)，LNA = on
设置信号发生器的信号电平能保证CSP的ADC处的信号强度在-20dBfs，通过SetWorkingPoint部分完成 例如：现在的信号发生器的信号电平为：Signal level at antenna = – 24.375dBm 1/发送PTE指令：ReadRSS, 62,0,0,50,62,0,0,50,62,0,0,50,62,0,0,50
2/读取结果并计算其CSP处的信号强度Mean=10 Log ((327 + 326 + 326 + 326) / 4) / 7FFF) = – 20.0188 dBfs 那么，Rx基带通道增益=Mean-信号发生器的信号电平-基带开关增益-频带补偿 重复以上的操作，将BB_Gain设为-2，26，40，54dB，得到以下结果： Basic Rx Path Gain for – 16dB Base–Band gain = – 8.7688 Basic Rx Path Gain for – 2dB Base–Band gain = – 8.8134 Basic Rx Path Gain for + 12dB Base–Band gain = – 8.7678 Basic Rx Path Gain for + 26dB Base–Band gain = – 8.851 Basic Rx Path Gain for + 40dB Base–Band gain = – 9.2095 Basic Rx Path Gain for + 54dB Base–Band gain = – 9.5656
3/分别计算各个测试的BB_Gain值与-8.7678的差值，并取整
4/通过PTE指令将值存入手机，SetGainCalBBIF %d,%d,,%d,%d,%d,%d
BB_Gain[0] = 16 * (– 8.7678 + 8.7688) = 0.256 which is rounded to 0 BB_Gain[1] = 16 * (– 8.7678 + 8.8134) = 0.7296 which is rounded to 1 BB_Gain[2] = 16 * (– 8.7678 + 8.7678) = 0
BB_Gain[3] = 16 * (– 8.7678 + 8.851 ) = 1.3312 which is rounded to 1 BB_Gain[4] = 16 * (– 8.7678 + 9.2095) = 7.0672 which is rounded to 7 BB_Gain[5] = 16 * (– 8.7678 + 9.5656) = 12.7648 which is rounded to 13 5）、计算Rx基带通道增益（LNA关闭）（Calculate the EGSM Basic Rx Path Gain for LNA off case） 已知：Channel 62，BB_Gain = 52dB (RxGainA = 0, RxGainB = 1536 + 322=1858 , RG0 and RG1 位设置为1，使LNA完全关闭)，LNA = off
设置信号发生器的信号电平能使CSP处的信号强度保持在-20dBfs 例如：
此时信号发生器的信号电平，Signal level at antenna = – 39.86dBm
1/ 发送PTE指令：ReadRSS, 62,0,0,1858,62,0,0,1858,62,0,0,1858,62,0,0,1858
2/读取结果并将其转换为dBfs单位，Mean = 10 Log ((323 + 323 + 325 + 323) / 4) / 7FFF) = – 20.0556 dBfs 3/其频带增益：Sub–Band Compensation = 1.125dB
4/当前的BB_Gain=52dB，那么其通道开关增益 BB switched gain = 52 + 28 = 80dB
5/由于BB_Gain=52dB，在46dB和62dB之间，其基带补偿：BB_Gain compensation = 13/16 = 0.8125dB，即使用BB_Gain[5]的补偿
6/现在我们可以计算出在LNA关闭的情况下的Rx基带通道增益：Basic Rx Path Gain =– 20.0556 – (Sub–Band Compensation) – (BB_Gain compensation) – (Level at antenna) – (BB switched gain)= – 20.0556 – 1.125 – 0.8125 + 39.86 – 80 = – 62.1331dB
7/将其乘以16转换回去，并分成两部分存储：Round(– 62.1331 * 16)=-994 或者0xFC1E(MSB=252,LSB=30) 6）、将校准的值存入手机
<1>通过PTE指令SetGainCalGSM和SetGainCalDCS来存值 <2>指令的参数说明：
例如：SetGainCalGSM, Param1, Param2,..,Param36 其36个参数见下表
Param 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Compensation Value EGSM Sub–band offset 0:1 (Low word) EGSM Sub–band offset 0:1 (High word) EGSM Sub–band offset 1:2 (Low word) EGSM Sub–band offset 1:2 (High word) EGSM Sub–band offset 2:3 (Low word) EGSM Sub–band offset 2:3 (High word) EGSM Sub–band offset 3:4 (Low word) EGSM Sub–band offset 3:4 (High word) EGSM Sub–band offset 4:5 (Low word) EGSM Sub–band offset 4:5 (High word) EGSM Sub–band offset 5:6 (Low word) EGSM Sub–band offset 5:6 (High word) EGSM Sub–band offset 6:7 (Low word) EGSM Sub–band offset 6:7 (High word) EGSM LNA threshold (Low word) EGSM LNA threshold (High word) Basic Rx Path Gain EGSM LNA On (Low Word) Basic Rx Path Gain EGSM LNA On (High Word) EGSM Sub–band Compensation 0, LNA on (16 dB, signed) EGSM Sub–band Compensation 1, LNA on (16 dB, signed) EGSM Sub–band Compensation 2, LNA on (16 dB, signed) EGSM Sub–band Compensation 3, LNA on (16 dB, signed) EGSM Sub–band Compensation 4, LNA on (16 dB, signed) EGSM Sub–band Compensation 5, LNA on (16 dB, signed) EGSM Sub–band Compensation 6, LNA on (16 dB, signed) EGSM Sub–band Compensation 7, LNA on (16 dB, signed) Basic Rx Path Gain EGSM LNA Off (Low Word) Basic Rx Path Gain EGSM LNA Off (High Word) EGSM Sub–band Compensation 0, LNA off (16 dB, signed) EGSM Sub–band Compensation 1, LNA off (16 dB, signed) EGSM Sub–band Compensation 2, LNA off (16 dB, signed) EGSM Sub–band Compensation 3, LNA off (16 dB, signed) EGSM Sub–band Compensation 4, LNA off (16 dB, signed) EGSM Sub–band Compensation 5, LNA off (16 dB, signed) EGSM Sub–band Compensation 6, LNA off (16 dB, signed) EGSM Sub–band Compensation 7, LNA off (16 dB, signed) thththththththththththththththth 7）、DC偏移量校准（DC Offset calibration for GSM1800 band） 1/发送PTE指令：DSPPoke,4198,0 ，开启DCOffset 外部校准 2/取出结果：DSPPoke, addr=4198, val=0
已知：Channel 539，BB_Gain = 62dB (RxGainA = 0, RxGainB = 362) ，LNA = on
3/设置适当的初始值,(PTE指令：SetDCROffsetArea, Band,0）,返回结果：CTSetDCROffsetArea:DONE
4/发送PTE指令：ReadRSS, 539,1,0,362,539,1,0,362,539,1,0,362,539,1,0,362，更新接收电平，返回结果：ReadRSS:RET:8,9,8,6 ，这是预设的弱信号，看看世纪的信号强度是否小于-30dBfs 10 Log (8 / 7FFF) = – 36.1425dBfs 10 Log (9 / 7FFF) = – 35.6309dBfs 10 Log (8 / 7FFF) = – 36.1425dBfs 10 Log (6 / 7FFF) = – 37.3918dBfs
Mean = 10 Log ((8 + 9 + 8 + 6) / 4) / 7FFF) = – 36.2804 dBfs 从DSP处读取测试值使用下面的命令：
a、发送PTE指令：ReadRSS, 539,1,0,362,539,1,0,362,539,1,0,362,539,1,0,362 b、发送PTE指令：DSPPeek,bc048,2 ，返回结果：DSPPeek, addr=bc048, num=2 DSP Memory 2 Words read:
Addr: 000bc048, Data: 4eaf= 20143 ANDed with 8191 = 3759 Addr: 000bc049, Data: 08bb = 2235 ANDed with 8191 = 2235
重复a，b两个步骤4次获取4组I/Q数值（I：20143，19914，19904，20013；Q：18520,18485，18369，18481）分别与8191进行与运算获得（I：3759 ,3530, 3520 ,3645；Q：2235, 2101, 1985, 2097）,在分别取I/Q信号的平均值（I：3614；Q：2105）
c、 发送PTE指令存储结果：(分别对539,593,648,702,755,809 and 860各个信道重复a/b两个步骤获取各个信道的对应值，然后通过PTE指令：SetDCROffsetData,3614,2105,3395,2464,3423,2717,3364,2806,3265,2976,3325,3204,3397,3551将其存入手机 该指令的格式：SetDCROffsetData,Param1,Param2,Param3,…Param14
Param1, Param3, Param5…Param13 分别是 539,593,648,702,755,809 and 860 各信道的I值. Param2, Param4, Param6…Param14 分别是 539,593,648,702,755,809 and 860 各信道的Q值 重复以上a/b/c三个步骤将BB_Gain分别设为62,60, 58, 56, 54, 52 and 50dB DCS1800与PCS1900同GSM900的校准过程大致相同，这里就不重复。 B）、Florence平台：
由于Florence平台使用的芯片与恒9系列的不一样，因此校准也有些不一样，下图是Florence平台的接收图。 1930-1990MHzA-PGADigitalInterfaceCell??ADCSi4200IDAT/CTLDAT/CTLCLK/CTLCLK/CTLSi4201IIIRDigital FilterDigitalInterfaceCell1805-1880MHzD-PGADACRXIPRXINQ824-849MHz880-915MHzA-PGAPGACtrl??ADCQD-PGADACRXQPRXQN13MHz_BB100kHzClockGeneratorSerial ControlInterfacePoly-phase& DividerNetworkAFCRF PLLVCO2DCXOLO1=1805.1-1989.7MHzMUXVCO1?SelfTune/R/1/2Ⅰ Ⅱ Ⅲ /NIF PLL/NSelfTuneSerial ControlInterface766-896MHzSERDATSERCLKSERLENRF_ENVDD_RF?Si4134TⅣ Ⅴ VDD_TX_900VDD_TX_1800VDD_RX_1900