Historical cell information application method, target cell switching confirmation method and system

Abstract

The invention discloses a historical cell information application method, comprising the following steps of: acquiring historical cell information and a mobility state judgment parameter of UE (User Equipment); and judging the mobility state of the UE according to the acquired historical cell information and the mobility state judgment parameter of the UE. The invention further discloses a confirmation method for switching a target cell, which comprises the steps of: judging the mobility state of the UE by a base station when the UE requires cell switching; and confirming a target cell to be switched by the base station with a reference to the mobility state of the UE. The invention further correspondingly discloses a terminal mobility state judgment system and a target cell switching confirmation system. The invention can be used for judging the mobility sate of the UE in a connection state, and a judgment result of the mobility state can further provide a reference for confirming the target cell to be switched, therefore, user service continuity and user satisfaction degree can be improved.

Description

technical field [0001] The invention relates to wireless cellular communication technology, in particular to a method for applying historical cell information, a method and a system for determining a handover target cell. Background technique [0002] LTE (Long Term Evolution) network consists of E-UTRAN (Evolved Universal Terrestrial Radio Access) base station eNB (Evolved NodeB) and Evolved Packet Center EPC (Evolved Packet Core), and the network is flat. Among them, the E-UTRAN includes a set of eNBs connected to the EPC through the S1 interface, and the eNBs can also be connected through the X2, where S1 and X2 are logical interfaces. One EPC can manage one or more eNBs, one eNB can also be controlled by multiple EPCs, and one eNB can manage one or more cells. The LTE-A system is evolved from the LTE system, and its network architecture is consistent with that of LTE. [0003] Currently, the protocol defines the criteria for judging the mobile state of a user terminal ...

AI Technical Summary

Problems solved by technology

[0008] It can be seen from the above description that when the UE is in the connected state, the existing technology cannot judge the mobility state of the UE. However, in the LTE / LTE-A system, the mobility state of the UE is not only optimized with the normal handover decision Correlation, similarly, in the SON scenario, under load balancing optimization, for the UE to be balanced, because the mobility status of the current UE cannot be obtained, the target cell cannot be selected well for handover, for example, for the mobility status is high-speed Mobile users frequently choose small cells for handover, which is not conducive to user service continuity and has a certain impact on user satisfaction.

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