LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design 26 / 78
value in the subscription data from the HSS, may also provide different values of the e-I-DRX parameters
than what was requested by the UE. If the EPC accepts the use of e-I-DRX, the UE applies e-I-DRX
based on the received e-I-DRX parameters. If the UE does not receive e-I-DRX parameters in the
relevant accept message because the EPC rejected its request or because the request was received by
EPC not supporting e-I-DRX, the UE shall apply its regular discontinuous reception.
If e-I-DRX is supported by the network, then it can be enabled by AT+CEDRXS=1 command.
Please refer to document [2] for details about AT+CEDRXS command.
3.4.4. Sleep Mode
BG96 is able to reduce its current consumption to a lower value during the sleep mode. The following
sub-chapters describe the power saving procedure of BG96 module.
3.4.4.1. UART Application
If the host communicates with module via UART interface, the following preconditions can let the module
enter into sleep mode.
Execute AT+QSCLK=1 command to enable sleep mode.
Drive DTR to high level.
The following figure shows the connection between the module and the host.
RXD
TXD
RI
DTR
AP_READY
TXD
RXD
EINT
GPIO
GPIO
Module
Host
GND
GND
Figure 3: Sleep Mode Application via UART
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