Huawei MU609 - Switch between Data Mode and Command Mode; Reference Process

HUAWEI MU609 HSPA LGA Module
Application Guide
External Protocol Stack Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
30
WCDMA RRC
Version
Modulation Mode
Theoretical Peak
Rate (Mbit/s)
3GPP Rel
Downlink
Uplink
Downlink
Uplink
R99/R4
QPSK
BPSK
0.384
0.384
Rel-5
16QAM+
QPSK
14.4
0.38
Rel-6
16QAM
QPSK
14.4
5.76
Rel-7
16QAM
64QAM
16QAM
16QAM
28.8
21.6
11.52
11.52
Rel-8
64QAM
DC-SHDPA+64QAM
16QAM
16QAM
43.2
43.2
11.52
11.52
Rel-9
DC-SHDPA+64QAM
DC-SHUPA
84
23
4.4 Switch Between Data Mode and Command Mode
4.4.1 Reference Process
Command
Description
ATD*99#
UE dials up.
CONNECT
+++
Enter +++ (three plus signs) to switch the data
service port from data mode to command mode.
The UE can then respond to AT commands and
perform corresponding actions.
ATO
Switch the data service port back to data mode so
that the UE can continue to transmit data.
CONNECT
Notes:

If there are no data links available, the module will not switch back to data mode but
remains in command mode.

If the data link is connected, when the module switches from data mode to command mode,
data transmission will be suspended.

If the data link is connected, when the module switches from command mode to data mode,
data transmission will be resumed.

Switching between data mode and command mode applies to UART and Modem ports.