Wireless local area network (WLAN) access method and multi-mode terminal

Abstract

The invention provides a wireless local area network (WLAN) access method and a multi-mode terminal. The method comprises the following steps that A. The multi-mode terminal acquires cellular network coverage information and WLAN coverage information from a service desk and associates the acquired cellular network coverage information and the WLAN coverage information; B. The multi-mode terminal determines whether a current position is covered by a cellular-network indoor station; if the current position is covered by the cellular-network indoor station, a step C is executed; C. The multi-mode terminal determines whether the current position is in a WLAN effective coverage scope according to an association relation of the cellular network coverage information and the WLAN coverage information; if the current position is in the WLAN effective coverage scope, a step D is executed; D. A service set identification SSID and / or a MAC address of a site which is in the WLAN effective coverage information is acquired from the WLAN coverage information, a configured WLAN switch is opened and the opened WLAN switch is used to identify and access the site possessing the SSID and / or the MAC address.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a wireless local area network (WLAN: Wireless Local Area Network) access method and a multi-mode terminal. Background technique [0002] At present, the commonly used WLAN access method is: first collect cellular network coverage information and WLAN local area network coverage information, wherein the above-mentioned cellular network mainly includes 2G (such as GSM, CDMA95, etc.), 3G (such as WCDMA, CDMA2000, TDSCDMA, etc.), 4G (such as LTE, WIMAX, UMB, etc.); after that, the terminal uses the cellular network information received in the current area to determine whether there is effective WLAN coverage in the current area according to the collected cellular network coverage information and WLAN coverage information. If so, Then, according to the WLAN signal strength of the current area, it is determined whether to access the station covered by the effective WLAN. In t...

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Problems solved by technology

[0003] In the above method, although WLAN access can be discovered, since the above-mentioned cellular network coverage information and WLAN coverage information are collected by the terminal itself or other multiple terminals, this cannot guarantee the comprehensiveness and timely coverage of the cellular network and WLAN coverage information. reliability, because only operators can have complete and reliable cellular network coverage information and WLAN coverage information

In addition, due to the large coverage of the cellular network, usually hundreds of meters or even thousands of meters, and the relatively small coverage of the WLAN local area network, usually tens of meters, there is a big difference between the two. Judging whether there is effective WLAN coverage in the area based on the information of a cellular network will cause large judgment errors. In addition, the above method is to determine whether to access the site in the effective WLAN coverage according to the WLAN signal strength of the current area. When a terminal accesses a site with relatively good WLAN signal strength but does not have login permission, the access fails

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