Confidential
USERS MANUAL
95(158)
Document number
Revision
1/198 17-4/FCP 101 3045 Uen
D
Parameter
Description
<type>
Specify the Location determination call flow
0
Disable location determination
1
Network calculates the fix by the input provided by the module
4.13.3 AT*EPDRL
(Request
Location)
Description
Syntax
Possible Responses
Sets the Location
capabilities
AT*EPDRL=<request> OK
Reads the current Location
capabilities
AT*EPDRL? *EPDRL:
<request>
OK
This AT command is used to inform the CM52 that the application would like the position calculation from the
network. The module responds with the unsolicited message of *EPDLR when the fix is available from the
network.
It may seem obvious that the position would be known by the onboard GPS; however if the GPS is not
available, the Base Station generates a position based on the pilot code phase measurements, or cell sector
fallback. Carrier testing may also require the value calculated by the network to be reported.
The setting is persistent. As a result, it is saved after a power cycle.
Parameter
Description
<request>
Specify the Location determination session status
0 (Default)
Do not return the calculated location
1
Return the calculated location
4.13.3.1
*EPDLR (Location Response)
This unsolicited message returns the Location Response from the base station. This can be issued as the
result of the application requesting location data (AT*EPDRL) or the PDE simply sending this data after the
position is calculated.
Description
Unsolicited Response Syntax
Location Response
*EPDLR:
<TIME_REF_CDMA>,<LAT>,<LONG>,<LOC_UNCRTNTY_ANG>,<LOC_UNCRTN
TY_A>,<LOC_UNCRTNTY_P>,<FIX_TYPE>,<VELOCITY_INCL>,<VELOCITY_HO
R>,<HEADING>,<VELOCITY_VER>,<CLOCK_INCL>,<CLOCK_BIAS>,<CLOCK_D
RIFT>,<HEIGHT_INCL>,<HEIGHT>,< LOC_UNCRTNTY_V>
Parameter
Description
<TIME_REF_CDMA>
CDMA system time at the time the solution is valid
0 – 16383
The BS shall set this field to [t/50] mod 16384, where t is the CDMA
system time in frames, as defined in IS95-B
<LAT>
Latitude