PDU specific（PDU特定域）简称为PS域，它是根据PDU format来确定的，由于PDU format（简称为PF）由八位组成，所以为0-255，当PF表示为0-239时，为PDU1格式（PDU1格式报文向特定或全局地址发送），PS为DA；当PF表示为240-255时，为PDU2格式（PDU2格式报文向全局地址发送），PS表示为GE。DA表示该...
网络协定资料单元规范;协议数据单元细节;特定协议数据单元 网络释义
WwanSmsFormatCdma1 到 WWAN_SMS_CDMA_MAX_MSG_LEN 注意对于基于 GSM 的设备,如果ElementType设置为WwanStructSmsPdu,此成员将描述不包括 Service Center 地址PduData的大小(以字节为单位)。PduData的第一个字节表示微型端口驱动程序在计算PduData缓冲区的确切大小时必须添加的服务中心地址的大小。
in the osi model, each layer adds its own header to the pdu, encapsulating the data from the layer above. this process allows each layer to manage specific tasks and protocols for data transmission. how does a pdu differ from a frame or a packet? a pdu is a generic term that can ...
手机短信的PDU编码和解码,共有三种方式来发送和接收SMS信息:Block是不能收发中文短信;而PDU模式不仅支持中文短信,也能发
The Open PDU is sent by the server and indicates that the server requests to start recording from the client device. The
Referringtothespecification,specificanalysis: Subparagraphmeaningexplanation 88-bytebytes(including91)forthelengthofSMSCaddressinformation 91SMSCaddressformat(TON/NPI)withinternationalformatnumber(infrontplus'+') F0SMSCaddress8613800100500,andthe'F'isinevennumber ...
Data Unit (PDU) for a specific block of information from a specific layer, which is transferred over the network from sender to receiver. Protocol Data Unit (PDU) is often used in reference to theOSI reference model. A Protocol Data Unit (PDU) includes the headers, trailers and actual ...
VPF: Validity Period Format 有效期格式 MMS: More Messages to Send 有更多的信息需要发送 RD: Reject Duplicate 拒绝复本 MTI: Message Type Indicator 消息类型指示 ME: Mobile Equipment 移动设备 TE: Terminal Equipment 终端设备 SIM: Subscriber Identity Modul ...
SMS采用存储转发模式,短消息被发送出去之后,不是直接地发送给接收方,而是先存储在SMS(短消息服务中心),然后再由SMC将其转发给接收方。如果接收方当时关机或不在服务区内,SMC会自动保存该短消息,排队并尝试再次发送给接收方。 点到点短消息服务包含两个基本服务: ...