Huawei ME909u-521 manual 5 Currency state when the module is in sleep mode

HUAWEI ME909u-521 LTE LGA Module
Application Guide	Sleeping and Waking Up Application Scenarios

Figure 8-5Currency state when the module is in sleep mode

T 2 ( S L E E P )

T 1 ( W a k e u p )

For more information about the module's sleep procedure, see Figure‎ 8-6

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-521 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.

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	55
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