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.
57
NOTE
The module's sleep mode is different from working mode or flight mode set using the
AT+CFUN
command. The RF will be turned off when the module enters LPM mode using the
command
AT+CFUN=0
while the RF will enter DRX mode without being turned off when the
module is in sleep mode. For more details, refer to
HUAWEI ME909u-523 LTE LGA Module AT
Command Interface Specification
.
The module enters sleep mode automatically when the sleep task detects that all
other tasks agree on the module's sleep. The sleep period of the module depends on
the current working state and circumstance. The period may last for several seconds,
or up to several minutes.
Figure 8-6
Sleep procedure