An user access device and wireless LAN system including this device

Abstract

The invention provides a user access device and a wireless LAN system including the same. The device comprises an antenna, and further comprises: a mainframe terminal device, and an equipment terminal device connected with the mainframe terminal device through connection devices disposed at both sides of a twisted pair. The mainframe terminal device comprises: an interface device for connecting to the terminal, and a first transfer circuit for two-way transferring the terminal signal and the twisted pair signal. The equipment terminal device comprises: a connector for connecting the antenna, and a second transfer circuit for two-way transferring the radio frequency signal and the twisted pair signal, wherein the twisted pair transfers a digital baseband signal, the connector of the equipment terminal device is connected to the antenna through a radio frequency cable. The user access device has a long distance between the antenna and the user mainframe, so that the sender and the receiver for the wireless signal can be arranged indoor or outdoor with a little shield or a few reflecting objects.

Description

technical field [0001] The invention relates to a wireless local area network, in particular to a low-cost wireless local area network (WiFi) long-distance user access device and a wireless local area network system. Background technique [0002] WiFi is also called a wireless local area network, and its network is generally composed of access point devices and user access devices. The access point device completes the access from the wireless LAN to the wired network. The user access device is also called a wireless network card, which implements wireless communication between a user terminal, such as a computer, and an access point device. [0003] Wireless local area network (WiFi) has a wide range of applications. For example, in the application of wireless local area network access in rural areas of our country, in a village, an access point device is usually placed in a higher place, and each user's user access device is scattered in Everywhere, usually farther away ...

AI Technical Summary

Problems solved by technology

This technology uses a USB extension cable to free the USB network card from the slot in the computer case, but the disadvantage of this connection method is that the wireless network card can only be placed near the computer, and cannot be placed farther away or outdoors.

Because according to the USB data transmission protocol, the length of the USB extension cable is usually less than 4.8 meters, so although the communication effect of this prior art has been improved to a certain extent, it is still not ideal enough to satisfy the user's need to conveniently arrange the antenna further away. need

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