Huawei MU509 At Command Interface Specification page 77

HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
Table 6-5 Bit number
Number
of Octets
1
1
0,1
0,1
0,1
0 to 159
The 7
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
0
0
1
1
0
0
1
<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
Extension bit Reserved
Issue 04 (2013-01-28)
7 6 5
th
bit and bits 2–5 of the first byte are not used in SMS-DELIVER-REPORT, and
bit0 Message type
0 SMS-DELIVER (in the direction SC to MS)
0 SMS-DELIVER REPORT (in the direction MS to SC)
0 SMS-STATUS-REPORT (in the direction SC to MS)
0 SMS-COMMAND (in the direction MS to SC)
1 SMS-SUBMIT (in the direction MS to SC)
1 SMS-SUBMIT-REPORT (in the direction SC to MS)
1 Reserved
bit 5 bit 4
Reserved Reserved
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Short Message Service Commands
4 3 2 1
bit 3 bit 2
Reserved TP-UDL
0
TP-MTI, TP-UDHI
TP-PI
TP-PID
TP-DCS
TP-UDL
TP-UD
bit 1 bit 0
TP-DCS TP-PID
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