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详细说明： SMS with the SMS PDU-mode ...................................................................................................... 1 编者序................................................................................................................................ 3 版本变动历史 ...................................................................................................................... 4 1、绪论............................................................................................................................... 5 2、缩写词.. .......................................................................................................................... 6 3、设置指令........................................................................................................................ 7 3.1 服务中心号码 (+CSCA) ...................................................................................... 7 3.2 选择消息服务 (+CSMS)...................................................................................... 7 3.3 选择消息格式 (+CMGF)...................................................................................... 8 4、SMS 文本模式................................................................................................................ 9 5、SMS PDU 模式............................................................................................................... 9 5.1 发送方SMS-Submit (Mobile Originated) ................................................................... 9 5.1.1 向SIM 卡存储区写入一条SMS (+CMGW) ................................................ 10 5.1.2 发送SIM 卡存储区中的一条SMS (+CMSS)............................................... 10 5.1.3 直接从终端设置发送SMS (+CMGS) ..........................................................11 5.2 接收方 SMS-DELIVER (Mobile Terminated)........................................................... 12 5.2.1 列取消息(+CMGL)................................................................................... 12 5.2.2 读取消息(+CMGR)................................................................................... 12 5.2.3 删除消息(+CMGD) .................................................................................. 13 6、SMS PDU 基本组成元素.............................................................................................. 13 6.1 发送方PDU 格式SMS-SUBMIT-PDU (Mobile Originated)....................................... 14 6.2 接受方PDU 格式 SMS-DELIVER-PDU (Mobile Terminated) ................................... 14 6.3 SCA 短消息服务中心地址格式.............................................................................. 15 6.4 PDU Type（第一个八位位组）............................................................................... 16 6.5 MR 信息参考 (Message Reference)......................................................................... 17 6.6 DA/OA 接收方地址与发送方地址.......................................................................... 17 6.7 PID 协议标识 (Protocol-Identifier).......................................................................... 18 6.8 DCS 数据编码方案 (DataCoding-Scheme) .............................................................. 18 6.9 VP 信息有效期（Validity Period） ......................................................................... 19 6.10 SCTS 服务中心时间戳（Service Center TimeStamp）............................................ 20 6.11 UDL 用户数据长度 (User-Data-Length (Amount of Characters)).............................. 20 7、常用 AT 指令.............................................................................................................. 20 8、PDU 操作实例.............................................................................................................. 21 8.1 准备工作.............................................................................................................. 21 8.2 连接手机.............................................................................................................. 22 8.3 发送PDU SMS ..................................................................................................... 22 9、SMS 编码方案与编程实现............................................................................................ 25 附..................................................................................................................................... 27 Message service error.................................................................................................... 27 error codes:.................................................................................................................. 27 默认的字符表 ............................................................................................................. 29 ...展开收缩
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