Heterogeneous wireless network switching method based on RAN slice

Abstract

A heterogeneous wireless network switching method based on RAN slice overcomes the problem of ignoring of user customized services and interruption of customized services in the switching process of the prior art, and comprises the implementation steps as follows: (1) selecting an optimal target wireless network; (2) determining whether there is a RAN slice required by the user in the network, ifso, performing the step (6), and otherwise, performing the step (3); (3) transmitting a request of constructing a RAN slice; (4) constructing a RAN slice required by the user; (5) transmitting a switching request; (6) releasing the connection of the wireless network to the user; (7) establishing a connection of an optimal target wireless network to the user; and (8) scheduling the RAN slice required by the user. In the process of designing heterogeneous wireless network switching, the invention utilizes an optimal target wireless network to schedule RAN slices, thereby improving the user customized service experience and network reliability.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a heterogeneous wireless network switching method based on RAN (Radio Access Network) slicing in the technical field of wireless communication. The invention can be used in a wireless communication system to ensure optimal target wireless network scheduling of wireless access network RAN ​​slices, and users can enjoy customized services and heterogeneous network switching of customized service continuity. Background technique [0002] A heterogeneous wireless network refers to the intelligent combination of overlapping wireless access systems of different types, and multiple different types of networks jointly provide users with wireless access anytime and anywhere. Heterogeneous network switching refers to the transformation of a network state and structure to another network state and structure. It is a network state switching process that can better meet the needs ...

AI Technical Summary

Problems solved by technology

There are three deficiencies in this method: first, the vertical handover decision process decides to trigger the selection of the network at an appropriate time

Increase the complexity of the vertical handover decision system, and the channel resource overhead is large

Second, when the mobile client performs switching connections, it is required to achieve seamless switching connections between heterogeneous networks. Optimized services, reducing user service quality

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