Anritsu MT8820C - 6. RRM; 6.1. 1 Port CS Fallback;Redirection

230
RRM 6.
The following test procedure can be used by both the MT8820C and MT8821C.
1Port CS Fallback/Redirection 6.1.
This chapter describes CS Fallback/Redirection to Inter-RAT at 1 Port.
Using CS Fallback/Redirection after completion of all measurements in LTE can shorten the switching time to
Inter-RAT.
The required options for CS Fallback/Redirection are shown below. Refer to Chapter 1.1.
LTE
Inter-RAT
W-CDMA
TD-SCDMA
GSM
CDMA2000/1xEV-DO
FDD
MX882012C-016
-
MX882012C-016
MX882012C-017
TDD
MX882013C-016
MX882013C-018
MX882013C-016 or 018
MX882013C-017
CS Fallback to W-CDMA/Redirection to W-CDMA 6.1.1.
This chapter describes an example where the LTE cell executes CS fallback to W-CDMA DL Channel 10700.
1. Execute STDSEL WCDMA to change the system to W-CDMA.
2. Execute PRESET_3GPP to perform W-CDMA initialization.
3. Execute DLCHAN 10700 to set the Common Parameter - Downlink Channel to 10700.
4. Execute INTEGRITY ON to set Call Processing Parameter - Integrity Protection to ON.
5. Execute REGMODE CS to set Call Processing Parameter - Registration Mode to CS.
6. Execute CONMODE CSFB to set Call Processing Parameter - Connection Mode to CS Fallback.
7. Execute LAC 0001 to set Call Processing Parameter - LAC to 0001.
8. Execute STDSEL LTE to change the system to LTE.
9. Execute PRESET to perform LTE initialization.
10. Execute IRAT CSFB_WCDMA to set the destination at CS Fallback execution to W-CDMA.
11. Execute IRATW_CH 10700 to set Call Processing Parameter - Inter-RAT Mobility - W-CDMA - DL Channel to
the same value as the above W-CDMA Downlink Channels setting.
12. Execute IRAT_STDCNG ON to set automatic switching when CS Fallback is executed to change Standard
13. Perform the LTE connection. (2.1.2, 2.1.3, 2.1.4)
14. Execute CSFB to set either CS Fallback or Redirection to W-CDMA.
15. Execute CALLSTAT? to query the call processing status is 7 (= Loop Mode 1).
(If not 7 (= Loop Mode 1 ), repeat step 15.)
For Redirection, the changes to the above procedure are shown below.
10. Execute IRAT REDIRECT_WCDMA to set the destination when Redirection is executed to W-CDMA.
15. Execute CALLSTAT? to query the call processing status is 2 (= Idle (Regist)).
(If not 2 (= Idle (Regist)), repeat step 15.)
NOTE:
 W-CDMA LAC must be fixed to “0001”.
 To perform CS Fallback/Redirection to W-CDMA at 1 Port, version 22.23 or later of the W-CDMA software
is required.