About CDMA RSSI question?
what 's the meant of the CDMA RSSI? May be the basestation transmit signal power -60dBm,then the mobile receiver it? How to test the CDMA RSSI this target?IS it the value the highter,the better?Thanks a lot for your reply!
Its through AT commands......
AT+CSQ?
---------- Post added at 21:09 ---------- Previous post was at 21:04 ----------
you can try AT+WSCAN
Do you want to test using some test equipment or using controller
Hi,ckshivaram
Thank you for your reply !ye,i use the cmu200 to measure the RSSI,but i don't understand How to test it with the CMU200 and what's the test priciple? Can you gve me enplanation?
Hi,ckshivaram
Yesterday I found that the CMU200 haven't the RSSI test target?How to get the RSSI test result?
You can use AT+CCED? or at+csq?
RSSI=Receive signal strengh indicator, it indicate the signal strengh that received by the UE. your sensitivity value might be the target and the indication should be accurate with in +/-2dB (not sure about CDMA but in WiMAX we will do like this)
I am not sure in CDMA but for WCDMA (should be similarities) there is an RX menu in CMU200 where you can find the reported level of the downlink CPICH (Common Pilot Channel) and RSSI, both in dBm.
In CDMA, the RSSI is reported to the base station. To measure the RSSI in CDMA phones, you need to have your device firware to dump the infomation to a display (conneted via USB). The dumped info can redirected to a SD card for further data mining and anlysis.
In GSM, the RSSI is reported to the base station always.
---------- Post added at 14:18 ---------- Previous post was at 13:54 ----------
I meant to say that in CDMA the RSSI is not reported to the basestation. In GSM it is reported. Sorry abouth the confusion.