Hello folks;
When I do some WCL optimization, and check bad CSFB SR% Cells, I’ve found cell with bad performance and its CSFB from LTE to GSM can be consider bad as shown below, however by checking in which phase the CSFB fails I’ve found that, it is when the eNB sends RRC Release message, so does anyone work and solve this issue before, experts any advice.
=> Note for the configuration is correct and no issue
- CSFB Switch on GSM.
2 Blind HO SW is ON for both eNB level and Cell level.
3. Redirection to GSM SW is ON.
4. Policy is Redirection.
5. GERANNFREQGROUP configured with frequency priority for connected mode
6. GERANNCELL configured with priority
=> So, is there any reason that could prevent the eNB to send RRC Release message.