Negotiation method of mobile reselection parameters between cells in LTE network

Abstract

The invention discloses a method for coordinating mobile and reselection parameters among communities in a long term evolution (LTE) network, which comprises the steps that: (1) a source base station judges mobile parameters to be adjusted according to the own load and the load of adjacent communities, so as to calculate the variation of the mobile parameters of the source base station and a target base station to be adjusted; (2) the source base station sends a mobile parameter modification request to the target base station, and the request contains the variation of reselection parameters of the source base station and the variation of the suggested reselection parameters proposed to the target base station; (3) the target base station sends to the source base station a signaling of accepting or rejecting the mobile parameter modification request after accepting or rejecting the mobile parameter modification request; and (4) the source base station receives the signaling; and if the target base station accepts the mobile parameter modification request, then the target base station and the source base station adjust the own reselection parameters. According to the method for coordinating mobile and reselection parameters among communities in the LTE network, the times of ping-pong reselection are reduced, and the negative impact of the immediate switching which occurs when the switching and the reselection parameters are not matched on a system is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless cellular communication, and relates to a method for negotiating mobile reselection parameters between small cells in an LTE network. Background technique [0002] The LTE (Long Term Evolution) network is composed of E-UTRAN (Evolved UTRAN) base station eNB (EvolvedNodeB) and Evolved Packet Core (EPC), and the network is flat. The E-UTRAN includes a set of eNBs connected to the EPC through the S1 interface, and the eNBs can be connected through the X2. 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. [0003] Self-Organized Network (SON) is a technology for automatic network configuration and optimization. The feature of this technology is self-configuration and self-optimization. The application of this technology in LTE enables the LTE base station (eNB) to automatically configure ...

AI Technical Summary

Problems solved by technology

It can be seen that mismatched modifiers will cause a mismatch between the cell reselection boundary and the handover boundary

Therefore, the non-negotiated cell reselection parameter setting may cause the reselection boundary mismatch between adjacent cells, which may cause ping-pong reselection between cells; The reselection boundary and the handover boundary do not match, resulting in the possibility of an immediate handover when the UE enters the connected state from the standby state

[0005] To sum up, the lack of negotiated reselection parameter setting will lead to high inter-cell ping-pong reselection and immediate handover after the terminal changes from standby state to connected state, which will waste system resources

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