A mobility handover control method, device and storage medium

Abstract

The invention provides a mobility handover control method, device and storage medium. The mobility handover control method includes: receiving a handover token indication from the network side for instructing delivery of handover tokens to user equipment; entering an automatic mobility control mode, and selecting a target cell according to cell measurement results; notifying the network side of the The selected target cell; initiate random access to the target cell for handover. In the mobility handover control method of the present invention, the UE can have the autonomy of handover, and there is no need to report measurement reports to the network side during the UE autonomous handover process, and there is no need to wait for handover preparations from the network side, so that the UE can The handover process can be triggered, the flexibility of handover triggering is improved, the handover waiting time of the UE is reduced, the possibility of handover failure and RLF is further reduced, and the overall performance of the network is improved.

Description

technical field [0001] The present invention relates to mobile communication technology, and in particular, to a mobility handover control method, device and storage medium. Background technique [0002] In LTE (Long Term Evolution) and 5G urban networks, hierarchical deployment has become a common network deployment mode, and cells of different levels such as macro base stations, micro base stations, home base stations, and indoor base stations have been introduced. , which is used to improve the network coverage in different scenarios. In such a highly complex network environment, mobility control of UE (UserEquipment, user equipment) faces greater interference and challenges. In the existing handover mechanism of LTE, the network side has the absolute right to speak to the mobility control of the UE, including the trigger and the complete process of the handover, which are determined by the network side. [0003] The handover process of the existing LTE is as follows f...

AI Technical Summary

Problems solved by technology

Moreover, starting from the handover triggered by the UE's measurement report, at least steps 3, 4, and 5 are required, that is, the backhaul (backhual) delay of at least two X2 interfaces is about 10ms. If the wireless channel of the UE during this process The rapid quality decline will lead to radio link failure (RLF: Radio Link Failure) on the UE side, which will lead to handover failure

Under the complex network conditions of mixed networks in cities, the quality of wireless channels changes rapidly, which is prone to coverage holes or unstable signal quality. road failure

Moreover, this causes the UE to enter the idle state or re-initiate the access behavior, which greatly affects the key performance indicators of the network, thereby reducing the satisfaction of the terminal user

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