Technical data
WMO2 G900 / G1800 / G1900
WCOM/GSM/WMO2/WMO2ATDOC Friday 21 May 1999
WAVECOM confidential © 73
4.9.12 Auto-tests &T
AT&T0 is used to perform auto-tests. The response will be OK if no
software problem is detected (E2P, RAM and ROM checksums), otherwise
a simple ERROR response is sent.
AT&T1 is used to close the audio loop, and AT&T2 is used to open the
audio loop. This is used to validate the audio loop (microphone to speaker).
Application to GSM AT&T0 Perform software auto-tests
GSM to application OK No software problem detected, all checksums are correct
Application to GSM AT&T1 Do the audio loop test (close)
GSM to application OK command valid
Application to GSM AT&T2 Stop the audio loop test (open)
GSM to application OK command valid
4.10 Specific AT commands
4.10.1 Cell environment description +CCED
This command can be used by the application to retrieve the cell
parameters of the main cell and of up to six neighbour cells.
Two ways may exist for the external application to know these cell
parameters: on request of the application, or automatically by the module
every 5 seconds.
The automatic mode is not supported during communication or
registration.
The command to manage this functionality is:
Command syntax: AT+CCED=<mode>[, <requested dump>]
* <mode>:
0 One shot requested
1 Automatic shots requested
2 Stop automatic shots
* <requested dump>:
1 Main Cell:
MCC, MNC, LAC, CI, BSIC,
BCCH Freq (absolute), RxLev,
RxLev Full, RxLev Sub,
RxQual, RxQual Full, RxQual
Sub,Idle TS
2 Neighbour1 to Neighbour6:
MCC, MNC, LAC, CI, BSIC,
BCCH Freq (absolute), RxLev
4 Timing Advance
Combination (addition of the values) of the requested dumped are
supported.
Notice that in idle mode, only RxLev measures (one the main cell and on
the neighbour cells) are done. The value of these RxLev is set in the RxLev
Full field for the main cell.
The response will be:
+CCED:<value>, ... , <value>
OK
Where <value> is the ASCII string of the values (in hexadecimal) of the
parameters. If a field can not be measured - or has no sense - the
parameter is not filled (two consecutive commas are then found).