HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
Short Message Service Commands
Issue 04 (2013-01-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
77
Table 6-5
Bit number
Number
of Octets
7
6
5
4
3
2
1
0
1
TP-MTI, TP-UDHI
1
TP-PI
0,1
TP-PID
0,1
TP-DCS
0,1
TP-UDL
0 to 159
TP-UD
The 7
th
bit and bits 2
–5 of the first byte are not used in SMS-DELIVER-REPORT, and
the sender should set them to 0. If any bit of them is not 0, the receiver should ignore
them.
Description:
<TP-MTI>: TP-message type. Bits 0 and 1 in the first byte.
bit1
bit0
Message type
0
0
SMS-DELIVER (in the direction SC to MS)
0
0
SMS-DELIVER REPORT (in the direction MS to SC)
1
0
SMS-STATUS-REPORT (in the direction SC to MS)
1
0
SMS-COMMAND (in the direction MS to SC)
0
1
SMS-SUBMIT (in the direction MS to SC)
0
1
SMS-SUBMIT-REPORT (in the direction SC to MS)
1
1
Reserved
<TP-UDHI>: indicates that TP-UD has a header. It is located in bit 6 in the first byte.
0: TP
–UD domain contains only messages.
1: The beginning of TP
–UD domain has a header.
<TP
–PI>: indicates which optional parameters exist. If the bit is set as 1, it means no
corresponding parameter exists.
Table 6-6
The contents of bit number
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Extension bit
Reserved
Reserved
Reserved
Reserved TP-UDL
TP-DCS
TP-PID