一、对于高通平台分析log的工具自然是QXDM和QCAT，对于信号强度和信号质量的查看是分析通话、短信等故障必看的项目，而对于不同的网络制式，所过滤的标签也不一样

1、WCDMA

Thank you for consulting with us! You can check log packets 0x4186,4176,0x4023 for checking the signal quality and signal strength of WCDMA. For more information on log packets you can refer document 80-V2708-3.

2、LTE

Dear Customer,

For LTE, please check log packet 0xB193 for RSRP/RSRQ/RSSI.

3、CDMA

You can filter "rx agc" in 1x search message log to see RSSI and ECIO.

One good way is to filter QMI messate with keyword "strength". Then you can refer to frameworks\base\telephony\Java\Android\telephony\SignalStrength.java -> getLevel() to know the qualilty about each RAT.

MSG [00063/00] Android QCRIL/Low 09:30:55.036 qcril_qmi_nas.c 09637 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: function entry MSG [00063/01] Android QCRIL/Medium 09:30:55.036 qcril_qmi_nas.c 09639 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: ..GW MSG [00063/01] Android QCRIL/Medium 09:30:55.036 qcril_qmi_nas.c 09641 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: .. signalStrength 99, bitErrorRate 0 MSG [00063/01] Android QCRIL/Medium 09:30:55.036 qcril_qmi_nas.c 09643 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: ..TDSCDMA MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09645 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: .. signalStrength 2147483647 MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09648 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: ..CDMA MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09650 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: .. dbm 93, ecio 70 MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09652 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: ..EVDO MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09655 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: .. dbm -1, ecio -1, signalNoiseRatio -1 MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09657 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: ..LTE MSG [00063/01] Android QCRIL/Medium 09:30:55.037 qcril_qmi_nas.c 09661 RIL[0][event] qcril_qmi_nas_dump_sign_strength_report: .. signalStrength 19, rsrp 102, rsrq 8, rsnnr 114

4、GSM

0X5A6C

5、TDSCDMA

You could check the 0xD00A.

In where, ASET is service sell, MSET is N cells.