CDMA200 1X&EVDO REV A Adjacent channel Interference

[hamody2005]

Dear All

what the effect of interference to An EVDO Carrier between two CDMA200 1X carriers.


F1 119 1x
F2 78 EVDO
F3 37 1X

TILL NOW WE CAN'T MAKE F3 EVDO BECAUSE OF SOME OLD BTS RF UNIT OF 37

[T_ADD]

We have a carrier gap (1.25MHz) between 1x and EVDO. But during Rev.B planning, we were to refarm the band so that the EVDO carrier would be next to 1x.

In other words, no interference issues would actually come of it. You can try try it on a test BTS for 5-10 mins and monitor the rssi while doing so.

Sent from my ADR6300

[hamody2005]

We have a carrier gap (1.25MHz) between 1x and EVDO. But during Rev.B planning, we were to refarm the band so that the EVDO carrier would be next to 1x. In other words, no interference issues would actually come of it. You can try try it on a test BTS for 5-10 mins and monitor the rssi while doing so. Sent from my ADR6300

Now the problem if you are in front of a site with no EVDO service, The terminal can't get EVDO signal (indoor). I think this happen because of interference from nearby carrier to EVDO carrier . I want to how much this will effect the throughput .

[T_ADD]

Prove it using your rssi.

Sent from my ADR6300

[hamody2005]

I will do a test

[jamesbond]

We are using 925 1x, (950, 975, 1000) EVDO Rev. B. No such adjacent channel interference. As long as no big gaps between carriers, no binding problem. Such as binding of 625, 650 not possible with 950/925/975.