Anritsu MT8820C - CS Fallback to Cdma2000;Redirection to CDMA2000

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CS Fallback to CDMA2000/Redirection to CDMA2000 6.1.4.
This chapter describes an example where the LTE cell executes CS fallback to CDMA2000 Band Class is 0 and the
channel is 283.
1. Execute STDSEL CDMA2K to switch the system to CDMA2000.
2. Execute PRESET to perform CDMA2000 initialization.
3. Execute PRESET to perform CDMA2000 initialization.
4. Execute CHAN 283,1X to set Channel to 283.
5. Execute STDSEL LTE to switch the system to LTE.
6. Execute PRESET to perform LTE initialization.
7. Execute PREREGIST 1XRTT to set Call Processing Parameter - Pre-Registration to 1xRTT for execution to
CDMA2000-1xRTT.
8. Execute IRAT CSFB_CDMA2000 to set the destination at CS Fallback execution to CDMA2000.
9. Execute IRATC BC 0 to set Call Processing Parameter - Inter-RAT Mobility - CDMA2000 - bandclass to the
same values as the above CDMA2000 Band class settings.
10. Execute IRATC CH 283 to set Call Processing Parameter - Inter-RAT Mobility - CDMA2000 - Channel to the
same values as the above CDMA2000 Channel settings.
11. Execute IRAT_STDCNG ON to set automatic switching when CS Fallback is executed to change Standard.
12. Perform LTE connection. (2.1.2, 2.1.3, 2.1.4)
13. Execute CSFB to set CS Fallback or Redirection to CDMA2000.
14. Execute CALLSTAT? to query the call processing status is 6 (= Connected/Conversation).
(If not 6 (= Connected/Conversation), repeat step 14.)
For Redirection, the changes to the above procedure are shown below.
8. Execute IRAT REDIRECT _CDMA2000 to set the destination at CS Fallback execution to CDMA2000.
14. Execute CALLSTAT? to query the call processing status is 1(= Idle (Regist)).
(If not 1 (= Idle (Regist)), repeat step 14.)
NOTE:
 To perform CS Fallback/Redirection to CDMA2000 at 1 Port, version v22.24 or later of the CDMA2000
software version is required.