HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Issue 18 (2009-06-22)
Commercial in Confidence
Page 31 of 169
31 Equal to or higher than -51 dBm
99 Unknown or unmeasurable.
3.9 Signal %RSSI
3.9.1 Command Syntax
Command
Possible response(s)
ˁ
RSSI
<CR><LF>
ˁ
RSSI:
<rssi><CR><LF><CR><LF>OK<CR><LF>
3.9.2 Description
This command returns received signal strength indication. It is a negative value. The
unit is dBm.
3.9.3 Defined Values
<rssi>: Received Signal Strength Indicator
51 ~ 113: -113 dBm ~ -51 dBm -
125: -125 dBm. No signal.
NOTE: The relationship between RSCP, EC/IO and RSSI is as below, all values
should be negative.
RSCP=RSSI+EC/IO
3.10 Operation mode setting cCFUN
3.10.1 Command Syntax
Command
Possible response(s)
+CFUN=[<fun>[,<rst>]]
<CR><LF>OK<CR><LF>
In case of MS-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
+CFUN?
<CR><LF>+CFUN:
<fun><CR><LF><CR><LF>OK<CR><LF>
In case of MS-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
+CFUN=?
<CR><LF>+CFUN: (list of supported <fun>s), (list of
supported <rst>s)<CR><LF><CR><LF>OK<CR><LF>
3.10.2 Description
The “EXECUTION” command is used to set the MS mode or restart the MS.
Содержание EM770W
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