Method and apparatus for transmitting an soap message in a mobile communication system

A gateway for transmitting/receiving an internet protocol (IP) based simple object access protocol (SOAP) message, the gateway comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to:
• control the transceiver to receive a schema definition file including pre-defined functions by a server, from the server,
• generate an index table based on the pre-defined functions by the server, for compressing or decompressing a SOAP message,
• control the transceiver to transmit the generated index table to the server and a terminal,
• compress a first SOAP message to a first compressed-SOAP message based on the index table to be transmitted using a short message service (SMS) message, if a request for transmission of the first SOAP message is received from the server by:
• extracting functions and input values of the functions from the received first SOAP message,
• determining whether a method index for the extracted functions and the extracted input values exists based on the index table, and
• compressing, if the method index exists, the received first SOAP message to the first compressed-SOAP message by recording the method index, the extracted functions, and the extracted input values,
• control the transceiver to transmit the first compressed-SOAP message using a non-IP based protocol to the terminal,
• control the transceiver to receive, using the non-IP based protocol, a second compressed-SOAP message that is compressed based on the index table to be transmitted using an SMS message by the terminal, if a second SOAP message is transmitted from the terminal to the server,
• decompress the second compressed-SOAP message to the second SOAP message based on the index table, and
• control the transceiver to transmit the second SOAP message to the server.