在6670的BCP中的MOD模块时，UVA_VAL是什么意思？有什么用？用在LTE的PDSCH信道时，应该配的值为多少？
Table 4-68 Unit Value a Config Details (Word 0)
Bit Name Description
31-16 UVA_VAL Unit value ‘a’ for both soft and hard modulation. Applied by multiplying the standard constellation points (like those
shown in Figure 4-62) by this value. This parameter is not used for hard “compressed-mode” output since the output is
just an index in that mode.
在提供的BCP工程中，对LTE的PDSCH信道的测试中，此值陪值如下：
if (operationMode == 0) // uncompressed mode hard modulator
{
if (mod == 1 || mod == 2) // BPSK
pModHdrCfg->uva_val = (rms * 23170 + 0x4000) >> 15;
else if (mod == 4) //16 QAM
pModHdrCfg->uva_val = (rms * 10362 + 0x4000) >> 15;
else if (mod == 6) //64 QAM
pModHdrCfg->uva_val = (rms * 5056 + 0x4000) >> 15;
else //256 QAM
pModHdrCfg->uva_val = (rms * 2513 + 0x4000) >> 15;
}
其中rms为1024.为什么这样写？？麻烦解释详细一点，谢谢。。。。。。
