Heterogeneous network of wireless service and switching method thereof

Abstract

The invention discloses a heterogeneous network of wireless service and a switching method thereof. The inside of each network is provided with a node i-Node; the inside of the i-Node comprises a strategy database for storing various communication strategy data, a knowledge database for storing a vertical switching action model counted and formed according to vertical switching action and occupancy rate of a current network channel, a cognition level interface for collecting parameters of each protocol layer, and a cognition platform, wherein the cognition platform is used for judging whether the vacancy rate of the current channel is more than a threshold value after a switching signaling of an outer network is received, if so, a connected wireless node accessed to the network is triggered; the wireless node utilizes the parameters of the cognition layer interface and the vertical switching model to implement the switching process, and otherwise, the cognition platform replies a signaling of refusing switching. The invention also provides the method for switching the heterogeneous network of the wireless service. Through the strategy and the model pre-stored in the knowledge database and the strategy database, the heterogeneous network and the switching method can rapidly improve the service switching process among the heterogeneous networks and reduce the time delay of the switching.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a heterogeneous network of wireless services and a switching method. Background technique [0002] According to the current development of wireless mobile communication technology, the future wireless communication network is a ubiquitous, heterogeneous and complex network integrated with all IP, which should support different degrees of seamless mobility and provide multiple access methods. It allows multiple nodes to work together to ensure security and high quality of service (QoS) and other features. At the same time, it should be a wireless communication network with cognitive characteristics, which can sense the external environment at any time, and self-configure according to the current network conditions to dynamically adapt to changes in the environment. [0003] 3GPP, the international alliance of cellular mobile communication, which currently dominates wireles...

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Problems solved by technology

[0007] In view of this, the present invention is to provide a heterogeneous network of wireless services and a handover method to solve the problem that the above-mentioned heterogeneous network cannot adaptively control the handover process, and user services are likely to be interrupted during the handover process

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