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1
identical with those of the message, and the return path is the same.
<UDHI>: Indicates the user data header. The values are as follows:
0
1
<SRR>: State report request indication
0
1
<MR>: Message ID. Value range: 0~255.
<DA>: DA (destination address), same as defined in SCA. There are a total of
2~12Otects. Therefore, the longest address in the DA segment contains 20 digits.
<PID>: Protocol indication. The values are as follows:
Bit7
Bit7 bit6 (here we assume bit 7 = 0 and bit 6 = 0)
0
1
0
1
The values of Bit5 are as follows:
0
1
Bit4...bit0
If the values are 1 0 0 1 0, it indicates Email. Other values are not supported currently.
<DCS>: Coding mode of user data. The values are as follows:
Bit7...bit4
00xx
Bit5
Bit4
Issue 18 (2009-06-22)
Settings are available. It indicates that the reply has the SC number settings
The user data segment contains only contents of the message.
In addition to the message, the user data segment contains a data header.
State report information about successful sending of a message is not required.
State report information about successful sending of a message is required.
Bit6
Bit5
0
Allocate bits 0..5. The values are defined below.
0
Allocate bits 0..5. The values are defined below.
1
Reserved.
1
Allocate bits 0..5, for special purpose of SC.
no interworking, but SME-to-SME protocol
telematic interworking (in this case, the values of bits 4...0 are valid)
telematic devices type indication:
0: Message is not
compressed
1:
Message
is
compressed.
Not
supported currently.
0: Bit1 and bit0 are
reserved
Commercial in Confidence
HUAWEI UMTS M2M Module V100R001
PID
Bit4
Bit3
Bit3.....bit0
Bit1 bit0 indicate message type
0
0
: Class 0, providing display and reply to the SC
that the message is received but not stored.
0
1
: Class 1, stored to the NV (or SIM card if the
NV is full)
1
0
: Class 2, for use of SIM only. After the
message is stored, the storage state will be replied to the
AT Command Interface Specification
Bit2
Bit1
Page 78 of 169
Bit0
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