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Switching method in wireless cellular network

A wireless cellular and switching parameter technology, applied in wireless communication, access restrictions, electrical components, etc., can solve the problems of not giving adjustment parameters, not giving detection methods, etc., to improve network optimization efficiency, reduce human intervention, The effect of reducing the frequency

Inactive Publication Date: 2010-01-27
SAMSUNG ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] -Huawei's solution only proposes that the indication is too early or too late, but does not give a detection method if the judgment is too early or too late, nor does it give a plan on how to adjust the parameters according to the too early or too late indication

Method used

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  • Switching method in wireless cellular network
  • Switching method in wireless cellular network
  • Switching method in wireless cellular network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0060] (1) 101eNB collects handover performance or detects handover problems

[0061] In order to effectively detect handover problems, we divide the measurement report events that occur during the handover process into:

[0062] -A1 entry, i : A1 entry event occurred in cell i

[0063] -A1 leaving, i : A1 leaving event occurred in cell i

[0064] -A2 entry, i : A2 entry event occurred in cell i

[0065] -A2 leaving, i : A2 leaving event occurred in cell i

[0066] -A3 i->j : A3 event occurs. The occurrence of A3 event indicates that the signal of neighboring cell j is stronger than the signal of this cell i. After receiving the A3 event report, the eNB will generally make a handover decision. Therefore, for the convenience of description, A3 i->j The event represents the UE handover from cell i to cell j

[0067] -RLF i : A wireless link failure occurs in cell i

[0068] -RSA i : UE re-enters the effective service area of ​​cell i after radio link failure

[0069] -RRC i : Establish ...

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Abstract

The invention discloses a switching method in a wireless cellular network, comprising the following steps: a base station reports the switching performance or switching problems to an information network core node, the network core node adjusts a switching parameter, and informs the adjusted switching parameter to the base station; the base station adjusts and broadcasts the switching parameter according to the instructions of the network core node. By adopting the method of the invention, the frequency of switching problems, such as ping-pong switching and the like occurring in the cell edge, is obviously lowered, and human intervention is reduced, thus the cost is lowered and efficiency of network optimization is improved. Besides, the technical scheme of the invention can be used for pilot frequency, different system switching parameters optimization and cell reselection parameters optimization.

Description

Technical field [0001] The present invention relates to wireless communication, in particular to a handover method in a wireless cellular network. Background technique [0002] Mobility management is an important part of radio resource management, and handover is the most important part of mobility management. In a cellular network, due to the continuous movement of the UE, the UE crosses the zone, and the connection of the UE must be switched from the original cell to the new cell. In the cellular network, handover can generally be divided into same frequency handover, different frequency handover and different system handover. [0003] In LTE, intra-system handover is UE-assisted network control handover. The access network (E-UTRAN) mainly prepares handover signaling and prepares resources. The handover process does not require EPC participation. For example, handover preparation messages are directly exchanged between eNBs. At the end of the handover, the source node needs to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W36/08H04W48/18
Inventor 张光辉刘美丽雷艺学周续涛
Owner SAMSUNG ELECTRONICS CO LTD
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