HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Issue 18 (2009-06-22)
Commercial in Confidence
Page 68 of 169
TP-UDHI TP-User-Data-Header-Indication
O
b
Indicate that TP-UD has
a header
TP-PI TP-Parameter-Indicator
M
o Indicate which optional
parameters exist
TP-PID TP-Protocol-Identifier
O o Protocol
ID
TP-DCS
TP-Data-Coding-Scheme
O
o
Data coding scheme
TP-UDL
TP-User-Data-Length
O
o
User data length
TP-UD TP-User-Data
O 3)
User
data
Note:
1) Whether it is mandatory or optional: Mandatory (M) or Optional (O).
2) Indicates:
Integer (I), Bit (b), 2 bits (2b), octet (o).
3) Depends on TP-DCS.
Table 5-1
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.
Summary of Contents for EM770W
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