Analysis on the Structure of WAP protocol stack

In the development of wireless communication, our current standard is the WAP protocol stack. In order to make everyone better understand this content. Now we will give a detailed introduction to the relevant content of this agreement. Let's first understand the meaning of WAP. WAP (Wireless Communication Protocol) is used on digital mobile phones, the internet, or other personal digital assistant machines (PDAs) global Open Standards for communications between computer applications and future information appliances. The birth of this standard was the result of the efforts of members of the WAP Forum. The WAP Forum was held in June 1997, composed of Nokia, Ericsson, Motorola, and Unwi redPlanet ｡

With the WAP technology, you can introduce a large amount of Internet information and various services to wireless terminals such as mobile phones and PALM. wherever and whenever you need information, you can open your WAP mobile phone and enjoy endless online information or resources. WAP can run on various wireless networks, such as GSM, GPRS, and CDMA ｡

WML wireless tagging language

WML is short for Wireless Makeup language. Mobile phones supporting WAP technology can browse Internet content described by WML ｡

WML is an XML-based markup language used in standardized narrow-frequency devices, such as mobile phones, receivers, and other languages for displaying content and user interfaces. Due to the narrow-frequency, WML is partially restricted, such as small displays, limited user input devices, narrow-frequency network connections, and limited memory and resources ｡

WML supports text and image display. In the content organization, a page is a Card, and a group of cards constitute a Deck. When a user requests a browser from the server, WML sends the entire Deck to the browser of the client, so that the user can view all the Card content in the Deck without downloading each Card from the network ｡

Through WAP Technology, a large amount of Internet information and various services can be introduced into wireless terminals such as mobile phones and PALM. Whenever and wherever information is needed, by enabling the WAP mobile phone, you can enjoy endless online information or resources ｡

For example: comprehensive news, weather forecasts, stock market dynamics, business reports, current exchange rates, etc. E-commerce and online banking will also be implemented one by one. Through WAP mobile phone users can also obtain Sports Competition Results anytime, anywhere, and interesting news in the entertainment circle., you can also use the online booking function to arrange your life in an orderly manner ｡

WAP protocol stack

The protocol stack of WAP communication protocol adopts a hierarchical design. it provides a scalable and scalable environment for application system development. Each layer of the protocol stack is defined as t-J, which can be used by the previous layer of protocols, it can also be directly applied by other services or applications. In the design, WAP fully draws on the Internet protocol stack idea, modifies and simplifies it, and effectively applies it to wireless application environments ｡

The WAP protocol stack includes the following five layers:

1. Wireless Application Environment (WAE )｡

WAE is a universal framework for corridor development. It supports convenient and efficient development and operation of WAP application services on different telecom networks. This framework is mainly based on existing Internet technologies.

2. Wireless Session Layer (WSP )｡

The WSP Session Layer Protocol provides connection-oriented, WTP-based, or WDP-based, and reliable communication services for upper-layer WAP applications ｡

3. Wireless Transaction Protocol WTP (Wreless Transaction Layer )｡

WTP provides a lightweight transaction-oriented service that is specially optimized and suitable for mobile terminals ｡

4. Wireless Transport Layer Security (WTLS )｡

WTLS is an SSL-based secure transmission protocol that provides functions such as data integrity, confidentiality, authenticity, and denial of service protection ｡

5. Wireless Datagram Protocol (WDP )｡

WDP is a Wireless Transport Layer Protocol, supports data transmission on different types of network carriers. The WAP architecture provides a scalable and scalable environment for the development of mobile communication devices. other servers and applications ｡

WTA Application

In addition to the WAE and WAP protocol stacks, the WAP standard also defines the WTA (Wireless Te ~ Phony Applications) wireless phone Applications. it enables WAP to be well integrated with a variety of advanced telecommunications services in the current telecommunications Network, such as Intelligent Network services, mobile users can apply various intelligent network services without modifying mobile terminals ｡