HUAWEI ME909u-523 LTE LGA Module
Application Guide
Sleeping and Waking Up Application Scenarios
Issue 04 (2014-12-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
60
Figure 8-8
Successful procedure of remote wake-up
WAKEUP_OUT Waking up the Host
The module will output a 1s pulse using WAKE# as shown in Figure 8-1 or
WAKEUP_OUT as shown in Figure 8-2 when a wake-up source arrives. The host
wakes itself up after detecting the level change.
Remote Wake-up Configuration
The power consumption of the host increases if it is frequently woken up. The host
can configure the module's wake-up sources using ^WAKEUPCFG and ^CURC
command so as to reduce the power consumption.
The ^WAKEUPCFG command can be used to choose wake-up sources and the
wake-up channel (USB or WAKEUP_OUT). The ^CURC command can choose
unsolicited messages. For more details, refer to AT Command Interface Specification.
8.4 Application Scenarios: System with USB Connection
only
A host runs on Android, with support for USB suspend, USB remote resume, voice
calling, and text messages.
8.4.1
Hardware Connection
The host connects to the module using USB.
8.4.2
Software Procedure
Command
Description
AT^WAKEUPCFG=?
Query the parameter
range of
WAKEUPCFG
.
^WAKEUPCFG: (0-1),(0-3),(0-15)
OK