Switch Between Data Mode And Command Mode; Reference Process - Huawei MU609 Application Manual

HUAWEI MU609 HSPA LGA Module
Application Guide
WCDMA RRC
Version
3GPP Rel
R99/R4
Rel-5
Rel-6
Rel-7
Rel-8
Rel-9

4.4 Switch Between Data Mode and Command Mode

4.4.1 Reference Process

Command
ATD*99#
CONNECT
+++
ATO
CONNECT
Notes:
Issue 02 (2013-09-18)
Modulation Mode
Downlink
QPSK
16QAM+
16QAM
16QAM
64QAM
64QAM
DC-SHDPA+64QAM
DC-SHDPA+64QAM
 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.

Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
External Protocol Stack Application Scenarios
Uplink
BPSK
QPSK
QPSK
16QAM
16QAM
16QAM
16QAM
DC-SHUPA
Description
UE dials up.
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.
Switch the data service port back to data mode so
that the UE can continue to transmit data.
Theoretical Peak
Rate (Mbit/s)
Downlink Uplink
0.384 0.384
14.4 0.38
14.4 5.76
28.8 11.52
21.6 11.52
43.2 11.52
43.2 11.52
84 23
30