HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Issue 18 (2009-06-22)
Commercial in Confidence
Page 61 of 169
5.6.3 Defined Values
<length>: Integer value, which indicates the number of bytes of PDU data.
<pdu>: Protocol data unit. The data structure is as follows:
[<SCA>]
<sc_len> <type_addr>
<numbers>
TPDU
Where, the <SCA>, <sc_len>, <type_addr>, and <numbers> fields are defined in the
same way as in the section “Message sending command”.
The data structure of TPDU is as follows:
Abbr.
Reference
P1)
R2)
TP-MTI TP-Message-Type-Indicator M
2b
TP-UDHI TP-User-Data-Header-Indication
O
b
TP-MMS TP-More-Messages-to-Send M
b
TP-SRQ TP-Status-Report-Qualifier
M
b
TP-MR
TP-Message-Reference 3)
M I
TP-RA TP-Recipient-Address
M
2-12o
TP-SCTS TP-Service-Centre-Time-Stamp M
7o
TP-DT TP-Discharge-Time
M
7o
TP-ST TP-Status
M
o
TP-PI TP-Parameter-Indicator
O
o
TP-PID TP-Protocol-Identifier
O
o
TP-DCS TP-Data-Coding-Scheme
O
o
TP-UDL TP-User-Data-Length
O
o
TP-UD TP-User-Data
O
1) Mandatory (M) or Optional (O).
2) Integer (I), bit (b), 2 bits (2b), Octet (o), 7 octets (7o), 2-12 octets (2-12o).
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