Method and system for searching wireless network and multi-mode equipment

Abstract

The invention relates to the wireless communication field, and discloses a wireless network searching method and system, and multimode equipment, reducing the time delay of the multimode equipment by switching among networks and the energy consumption of searching for network. Relatively long time delay and much energy consumption happen if network searching is carried out to all possible networkparameters each time when a network switching is carried out by the multimode equipment because of different network parameters corresponding to networks of different regions; through a second network as a region reference, an association is established in advance between each region in the second network and the wireless network parameter of a first network of the region, thus when the multimodeequipment moves, the network searching only needs to be carried out to the first network according to the wireless network parameter of the first network correlated with the current region of the second network; the correlated information can be saved in managing equipment of the first network or of the second network, or be directly saved in the multimode equipment.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless network search technology for multi-mode equipment. Background technique [0002] For all mobile communication networks, including Global System for Mobile Communication (GSM for short) network and Wideband Code Division Multiple Access (WCDMA for short) network, the mobility problem is a Key issues that affect the quality of network communications. Because in the existing wireless communication technology, the mobile device must connect with some access points in the network to realize the communication. Each access point has a certain wireless coverage area. Due to the mobility of the user, the location of the mobile device often moves from the coverage area of ​​one access point to the coverage area of ​​another access point. Therefore, it is often necessary to Handover is performed according to the location change of the mobile device or the needs of service...

AI Technical Summary

Problems solved by technology

The second is to scan whether there are other access points until there is a problem with the device communication, and switch to a new access point if there is a problem. This method has a relatively long delay and the communication may be discontinuous. Data services that require continuous communication, but do not need to periodically detect channels to save energy, so some networks use this post-processing technology to deal with mobility problems

Because different networks may use different working channels, different network IDs, or different network keys, when scanning access points, it may be necessary to scan on all working channels and try nodes with different network IDs. The network key must also be re-requested, resulting in a large switching delay, and the energy consumed by scanning one by one is also large

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