Patent ID: 9265075
Filing Date: 2016-02-16
CPC Classification: H04L,H04W

Claim Text:
1. A method for quickly establishing a dial-up connection by using a data card, comprising: initiating, by a mobile terminal, a dial-up connection from a computer; performing both a process of initiating a wireless connection establishment through a Unified Messaging (Um) port and a process of initiating a Dynamic Host Configuration Protocol (DHCP) server through a Remote Messaging (Rm) port at the same time; wherein after the DHCP server is initiated, detecting synchronously, a DHCP discovery message from the computer through the Rm port, and an UP message through the Um port; wherein after the DHCP discovery message and the UP message are received, initiating a DHCP negotiation process between the computer and the mobile terminal to finish the dial-up connection; wherein after the process of initiating the wireless connection establishment through the Um port and the process of initiating the DHCP server through the Rm port are started, starting a DHCP timer for performing time-out detection, wherein the DHCP timer is notified of a wireless connection establishment event after the process of the wireless connection establishment ends; and performing the DHCP process according to the wireless connection establishment event wherein: in the case that the wireless connection establishment event is a wireless connection establishment success event, and when the DHCP timer is not yet timed out, continuing to wait, by the DHCP timer, until discovering a DHCP discover message, and then responding with a DHCP offer message and completing the DHCP process; or when the DHCP timer is timed out, determining the connection establishment as being failed; in the case that the wireless connection establishment event is a wireless connection establishment failure event, deleting the DHCP timer and ending the DHCP process.