I have been blogging related to Open Systems Interconnection Model (OSI Model). Here, is the link to my post HB Blog 53: Open Systems Interconnection Model (OSI Model).
Similar, to OSI model we have Wireless Application Protocol (WAP) standard for accessing information over a mobile wireless network. The WAP protocol stack has a multi-layered architecture (this is very similar to the seven layers model of OSI as follows,
1)Application Layer (WAE) - Wireless Application Environment
2)Session Layer (WSP) - Wireless Session Protocol
3)Transaction Layer (WTP) - Wireless Transaction Protocol
4)Security Layer (WTLS) - Wireless Transport Layer Security
5)Transport Layer (WDP) - Wireless Datagram Protocol
6)Bearer Layer (GSM, CDMA, GPRS, etc.)
Application Layer
The WAE provides a general purpose application environment based on a combination of WWW and Mobile Telephony technologies. The primary objectives is to establish an interoperable environment that will allow operators and service providers to build applications and services that can reach a wide variety of different wireless platforms containing the various functionalities such as Wireless Markup language(WML), WML Script, Wireless Telephony Application etc.
Session Layer
Wireless Session Protocol (WSP) is an open standard for maintaining high level session. Wireless session is nothing but a normal Web browsing session that starts when the user connects to one URL and ends when the user leaves that URL.
Transaction Layer
Wireless transaction protocol is a layer of the Wireless Application Protocol (WAP) that is intended to bring Internet access to mobile phones. WTP provides functions to similar to TCP,except that WTP has reduced amount of information needed for each transaction. WTP saves processing and memory cost as compared to TCP. It Supports 3 types of transaction : 1.Unreliable One-Way Request 2.Reliable One-Way Request 3.Reliable Two-Way request.The WTP runs on top of a datagram service such as User Datagram Protocol (UDP) and is part of the standard suite of TCP/IP protocols used to provide a simplified protocol suitable for low bandwidth wireless stations.
Security Layer
The Wireless Transport Layer Security is the layer that handles security of data and validity of data between two communicating to manage, start, and finish security issues between two portable devices. WTLS incorporates security features that are based upon the established Transport Layer Security (TLS) protocol standard. It includes data integrity checks, privacy, service denial, and authentication services.
Transport Layer
Wireless Datagram Protocol defines the movement of information from receiver to the sender and resembles the User Datagram Protocol in the Internet protocol suite. The Wireless Datagram Protocol (WDP), a protocol in WAP architecture, covers the Transport Layer Protocols in the Internet model. The WDP presents a consistent data format to the higher layers of the WAP protocol stack, thereby offering the advantage of bearer independence to application developers.
Bearer Layer
The bearers of WAP are the products or other types of medium that implements WAP in their network and in their technology, such as GSM, CDMA, GPRS, etc.
Similar, to OSI model we have Wireless Application Protocol (WAP) standard for accessing information over a mobile wireless network. The WAP protocol stack has a multi-layered architecture (this is very similar to the seven layers model of OSI as follows,
1)Application Layer (WAE) - Wireless Application Environment
2)Session Layer (WSP) - Wireless Session Protocol
3)Transaction Layer (WTP) - Wireless Transaction Protocol
4)Security Layer (WTLS) - Wireless Transport Layer Security
5)Transport Layer (WDP) - Wireless Datagram Protocol
6)Bearer Layer (GSM, CDMA, GPRS, etc.)
Application Layer
The WAE provides a general purpose application environment based on a combination of WWW and Mobile Telephony technologies. The primary objectives is to establish an interoperable environment that will allow operators and service providers to build applications and services that can reach a wide variety of different wireless platforms containing the various functionalities such as Wireless Markup language(WML), WML Script, Wireless Telephony Application etc.
Session Layer
Wireless Session Protocol (WSP) is an open standard for maintaining high level session. Wireless session is nothing but a normal Web browsing session that starts when the user connects to one URL and ends when the user leaves that URL.
Transaction Layer
Wireless transaction protocol is a layer of the Wireless Application Protocol (WAP) that is intended to bring Internet access to mobile phones. WTP provides functions to similar to TCP,except that WTP has reduced amount of information needed for each transaction. WTP saves processing and memory cost as compared to TCP. It Supports 3 types of transaction : 1.Unreliable One-Way Request 2.Reliable One-Way Request 3.Reliable Two-Way request.The WTP runs on top of a datagram service such as User Datagram Protocol (UDP) and is part of the standard suite of TCP/IP protocols used to provide a simplified protocol suitable for low bandwidth wireless stations.
Security Layer
The Wireless Transport Layer Security is the layer that handles security of data and validity of data between two communicating to manage, start, and finish security issues between two portable devices. WTLS incorporates security features that are based upon the established Transport Layer Security (TLS) protocol standard. It includes data integrity checks, privacy, service denial, and authentication services.
Transport Layer
Wireless Datagram Protocol defines the movement of information from receiver to the sender and resembles the User Datagram Protocol in the Internet protocol suite. The Wireless Datagram Protocol (WDP), a protocol in WAP architecture, covers the Transport Layer Protocols in the Internet model. The WDP presents a consistent data format to the higher layers of the WAP protocol stack, thereby offering the advantage of bearer independence to application developers.
Bearer Layer
The bearers of WAP are the products or other types of medium that implements WAP in their network and in their technology, such as GSM, CDMA, GPRS, etc.
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