Specifications
Chapter 8 – Network Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 121
8.8 AT^SMOND Cell Monitoring
Description: The AT^SMOND execute command can be used to obtain status information of the service cell
and up to six neighbor cells. The advantage over other cell monitoring commands is that
AT^SMOND delivers more detailed information about the received signal strength.
Syntax: Test Command: AT^SMOND=?
Responses: OK
ERROR
+CME ERROR: <err>
Exec Command: AT^SMOND
Responses: ^SMOND: [<sci>][, <nci>][, <TA>][, <rssiber>]
OK
ERROR
+CME ERROR: <err>
Parameters:
<sci> Serving cell information (comma-separated, no cr/lf included)
<MCC>,<MNC>,<LAC>,<cell>,<BSIC>,<chann>,<RxLev>,<RxLev>Full,<RxLev>Sub,<RxQual>,
<RxQual>Full,<RxQual>Sub,<Timeslot>
If no serving cell is found, unavailable values are omitted:” ,,,,,,<RxLev>,,,0,,,0”
<nci> Neighbor cell information for neighbor cell 1 through 6 (comma-separated, no cr/lf included)
<MCC>1,<MNC>1,<LAC>1,<cell>1,<BSIC>1,<chann>1,<RxLev>1, (these parameters repeated
for neighbor cells 2 through 6 with no CR/LF): ...
<MCC>
6
,<MNC>
6
,<LAC>
6
,<cell>
6
,<BSIC>
6
,<chann>
6
,<RxLev>
6
An unavailable cell appears as follows: “ ,,,,,,0”
<rssiber> Values for RSSI and BER (comma-separated, no cr/lf included)
<RSSI>,<BER>
<MCC> Mobile country code
3 digits, e.g. 232
000 Not decoded
<MNC> Mobile network code
2 digits or 3 digits, e.g. 07 or 003
000 Not decoded
<LAC> Location area code
4 hexadecimal digits; e.g., 4EED
0000 Not decoded
<cell> Cell identifier
4 hexadecimal digits, e.g. 4EAF
0000 Not decoded
FFFF Cell ID currently not available because the cell ID information is not yet read from the
Sysinfo 3 transmitted by the base station.
<BSIC> Base station identity code
2 digits, e.g. 32
00 Not decoded
<chann> ARFCN (Absolute Frequency Channel Number)
<RxLev> Received signal level in dBm
<RxQual> Received signal quality as defined in GSM05.08
<Timeslot> Assigned timeslot. If mobile is in idle mode, timeslot 0 (BCCH timeslot) will be indicated.
0...8 Assigned timeslot
<TA> Timing advance for the serving cell, in bits.
<RSSI> Receive Level, with value 99 indicating “not known or not detectable”
0...31 Signifies the RSSI range from -113dBm or less (“0”) to -51dBm or greater (“31”) in steps
of -2dBm (e.g. “1” = -111 dBm, “2” = -109 dBm ..., “30” = - 53dBm)
<BER> Bit Error rate, with value 99 indicating “not known or not detectable”
0...7 as RXQUAL values RXQUAL0 to RXQUAL7 in GSM 05.08 section 8.2.4