Method for Switching from Normal Operation Mode to Sleep Mode for Use in Portable Internet

The present invention relates to a method of entering sleep mode in a normal mode performed in the mobile Internet. The present invention is a portable Internet: the (Portable Internet or WiBro Wireless Broadband Internet) power saving function (Power Saving) determines whether or not used, the normal execution mode (Normal Operation Mode) determines that it is necessary to use the power saving function in the sleep mode involved subscriber terminal to switch to the (Sleep mode) (PSS: Personal subscriber station, hereinafter 'PSS' hereinafter) on in, the time that the external power is connected to set the check time to check the condition setup program, wherein the external power source, is connected determines that it is necessary to use the power saving function to operate in the normal execution mode, and uses its own battery if it determines that there is no need to use the power save mode to switch the normal execution mode to the sleep mode, a program memory for storing a state transition program; A key input unit, which includes a plurality of key buttons for setting the check time; LCD display unit that displays the operation status of the PSS, the display process of setting the check time; Is connected to a charger or a hands-free vehicle power supply for supplying the external power source to the PSS; And wherein, when the using the time on the program and sets the check time, is that the external power source by using the mode conversion program, that there is no need to use the power saving function is determined according to the key input of the user performs the normal mode, operation, and determines that it is necessary to use the power saving function using the battery itself to provide a microprocessor which controls to switch the normal mode to the sleep mode to perform in. According to the present invention, by switching the normal execution mode if it determines the use of the power saving function if the PSS in the portable Internet, and determines that it is necessary to use a power saving function in the sleep mode, data between the RAS and the PSS in accordance with the battery state of the PSS performing transmission by efficiently it is possible to prevent the waste of resources due to the speed and propagation of transmitted and received data forwarding time. Normal execution mode, sleep mode, power-saving features, an external power supply