Patent ID: 8117477
Filing Date: 2012-02-14
Classification: H04W,Y02D

Abstract:
1. A method for entering an idle mode of a terminal, the method comprising: a first operation for starting a first timer after transmitting an idle mode request message; a second operation for, when an idle mode approval message is not received before the first timer expires, checking whether a number of retransmissions of the idle mode request message exceeds a number of allowed retransmissions of the idle mode request message; a third operation for, when the number of the retransmissions of the idle mode request message exceeds the number of the allowed retransmissions of the idle mode request message, increasing a number of idle mode entry failures; and a fourth operation for, when the increased number of the idle mode entry failures is greater than a value, entering a power saving mode which powers off a modem of the terminal.