短信级联 --- 0348标准数据体分析（二）
0348标准SMS-PP级联短信数据格式：《3GPP TS 03.48 V8.80》
| SMS specific elements |
Generalised Command Packet Elements (Refer to Table 1) |
Comments |
| UDL |
|
Indicates the length of the entire SM |
| UDHL |
='07' |
The first octet of the content or User Data part of the Short Message itself. Length of the total User Data Header, in this case, includes the length of IEIa + IEIDLa + IEDa + IEIb + IEIDLb + IEDb (see figure 2), which is '07' in this case. |
| IEIa |
'00', indicating concatenated short message |
identifies this Header as a concatenation control header defined in TS 23.040 [3]. |
| IEIDLa |
Length of Concatenation header |
length of the concatenation control header (= 3). |
| IEDa |
3 octets containing data concerned with concatenation |
These octets contain the reference number, sequence number and total number of messages in the sequence, as defined in TS 23.040 [3]. |
| IEIb |
CPI= '70' |
Identifies this element of the UDH as the Command Packet Identifier. |
| IEIDLb |
='00' |
Length of this object, in this case the length of IEDb alone, which is zero, indicating that IEDb is a null field. |
| IEDb |
|
Null field. |
| SM (8 bit data) |
Length of Command Packet (2 octets) |
Length of the Command Packet (CPL), coded over 2 octets, and shall not be coded according to ISO/IEC 7816-6 [8]. |
|
|
Command Header Identifier |
(CHI) Null field. |
|
|
Length of the Command Header |
Length of the Command Header (CHL), coded over one octet, and shall not be coded according to ISO/IEC 7816-6 [8]. |
|
|
SPI to RC/CC/DS in the Command Header |
The remainder of the Command Header. |
|
|
Secured Data (part) |
Contains the first portion of the Secured Data. The remaining Secured Data will be contained in subsequent concatenated short messages. |
添加0348级联短信数据体后的短信体分析：
====== 第一条0348短信数据体
00 00 00 D7 00 00 00 04 00 00 00 00 00 00 02 33 00 02 01 31 30 36 35 38 34 32 37 00 02 01 38 36 31 35 38 30 30 30 30 30 32 30 30 00 40 7F 00 00 30 38 31 32 30 39 31 36 34 37 33 33 30 30 30 2B 00 01 00 F6 00 8C
07 00 03 UDHL_IEIa_IEIDLA
B7 06 01 IEDa
70 00 IELb_IEIDLb
02 D9 CPL
0D CHL
00 00 SPI
00 00 KIC_KID
B0 00 20 TAR
00 00 00 00 00 CNTR
00 PCNTR
00 00 00 00 90 00 01 01 91 00 17 6C 69 76 65 6D 65 6E 75 2F 74 72 61 76 65 6C 2F 62 65 69 6A 69 6E 67 92 00 02 00 00 93 02 A1 01 00 15 01 10 00 31 00 31 00 32 00 37 4E 2D 5C 71 51 6C 56 ED FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 14 00 2E 00 2E 89 7F 57 CE 53 3A 65 87 6D 25 88 57 00
04 26 00 01 01
====== 第二条0348短信数据体
00 00 00 D7 00 00 00 04 00 00 00 00 00 00 02 34 00 02 01 31 30 36 35 38 34 32 37 00 02 01 38 36 31 35 38 30 30 30 30 30 32 30 30 00 40 7F 00 00 30 38 31 32 30 39 31 36 34 37 33 33 30 30 30 2B 00 01 00 F6 00 8C
05 00 03 UDHL_IEIa_IEIDLa
B7 06 02 IDEa – referenceNum_totalNum_sequenceNum
31 53 F7 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
04 26 00 01 01
====== 最后一条0348短信数据体
00 00 00 90 00 00 00 04 00 00 00 00 00 00 02 38 00 02 01 31 30 36 35 38 34 32 37 00 02 01 38 36 31 35 38 30 30 30 30 30 32 30 30 00 40 7F 00 00 30 38 31 32 30 39 31 36 34 37 33 34 30 30 30 2B 00 01 00 F6 00 45
05 00 03 B7 06 06
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 08 00 2E 00 2E 65 C5 6E 38 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
26 00 01 00
蓝色 -- SMPP 格式数据
红色 -- 0348 格式数据
黄色 -- 被级联分割后的数据（多媒体卡接入规范下的要下发的数据）