Huawei MC509 manual WPDST-Command for Setting Session Type, Wpdst?, Crlfokcrlf WPDST=?

HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification	GPS Commands

14.2 ^WPDST–Command for Setting Session Type

14.2.1 Syntax

Command	Possible Response(s)
^WPDST=<type>	<CR><LF>OK<CR><LF>
	Error:
	<CR><LF>+CME ERROR: <err><CR><LF>
^WPDST?	<CR><LF>^WPDST: <type><CR><LF>
	<CR><LF>OK<CR><LF>
^WPDST=?	<CR><LF>^WPDST: (list of supported <type>s)
	<CR><LF>
	<CR><LF>OK<CR><LF>

14.2.2Interface Description

This command is used to set the position session type. READ command queries current session type. TEST command returns supported session type. SET command can only be used before position session beginning or after end, can‟t be used during positioning, or will be error.

14.2.3Parameter Description

<type>: session type, default value is 0, no storing at power down

0: single-shot fix, this provides the ability to obtain a one-shot position location according to user-specified QoS. The QoS is set by command ^WPQOS.

1: tracking fix, this provides the ability to request continuous position fixes and obtain fixes at the user-specified rate. The rate is set by command ^WPDFR.

2: last result, this provide the last position information available at the time of request, no fix action.

3: Data download, this allow the MS to download ephemeris/almanac data and coarse position a-priori. The data can be used by the PD module to obtain future fixes with a minimal TTF.（Only available in CDMA, not support in UMTS）

<err>: error description or error code

Error code	Error description
4	Operation not supported
281	Invalid parameter
283	PD session is ongoing
285	Too many parameters

Issue 01 (2011-08-26)	Huawei Proprietary and Confidential	136
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