A kind of wireless terminal and wireless access method

Abstract

The invention provides a wireless terminal. The wireless terminal comprises a PC (Personal Computer) data packet processing subsystem, a DNS (Domain Name Server) cache subsystem and an operator network data packet processing subsystem, wherein the PC data packet processing subsystem and the operator network data packet processing subsystem establish a data path for data uplink and downlink between a PC side and an operator network and complete the format conversion function of a data packet; the DNS cache subsystem is positioned between the PC data packet processing subsystem and the operator network data packet processing subsystem, completes DNS information cache by recognizing uplink and downlink data streams and transmits a DNS response data packet to the PC side through downlink data. Compared with the prior art, a DNS cache function is added to the wireless terminal to make up function loss that a PC does not remain effective DNS cache information for the wireless terminal. Due to the adoption of the wireless terminal, Internet access waiting time of a user can be shortened, and in particular in a poor wireless environment, a remarkable effect is realized. Simultaneously, Internet access expense is reduced and the network load of an operator is lightened.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a wireless terminal and a method for wirelessly accessing the Internet. Background technique [0002] A wireless terminal (such as a data card, referred to as "terminal" or "terminal side" in the present invention), accessing the Internet through a wireless terminal refers to a kind of wireless terminal that finally accesses the Internet through a certain operator's access network or core network. Internet access method. The salient feature of this Internet access method is that information such as the IP address used by the terminal to access the Internet and the IP address of the DNS server are all allocated or determined by the core network equipment of the operator. [0003] Devices that use terminals to access the Internet, such as personal computers (PCs) and netbooks (NetBooks), are collectively referred to as "PC" or "PC side" in the prese...

AI Technical Summary

Problems solved by technology

This not only increases the waiting time for users to access the Internet, but also wastes users' Internet access fees, and also increases the network load of operators.

Images