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Handover method in a cellular wireless communication system

A wireless communication system, cellular technology, applied in wireless communication, electrical components, etc., can solve the problem that RSRQ cannot measure the quality well, and achieve the effect of fewer handover events and lower handover failure rate

Active Publication Date: 2014-11-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is similar to the A3 event using RSRQ measurements, but has the drawbacks mentioned above because RSRQ is not a good measure of quality

Method used

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  • Handover method in a cellular wireless communication system
  • Handover method in a cellular wireless communication system
  • Handover method in a cellular wireless communication system

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Embodiment Construction

[0059] In order to achieve the above and other objects, the present invention relates to a handover method in a wireless communication system. The method comprises the steps of: monitoring a downlink SINR value SINR between a source cell of a mobile station and said mobile station DL ; select a target cell based on one or more measurement reports from the mobile station, wherein the measurement reports include measurements of reference signals transmitted by one or more candidate target cells; based on the downlink SINR value SINR DL initiating handover preparation to said selected target cell of the mobile station; and finally handing over the mobile station from the source cell to said selected target cell. Candidate target cells are cells detected by the mobile station.

[0060] Therefore, the present invention will carry the signaling identifying the measurement of the best target cell (i.e. the selected target cell) together with the signaling determining the handover ti...

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Abstract

The present invention relates to a method for handover in a cellular wireless communication system, said method comprising the steps of: monitoring a downlink SINR value SINR DL between a source cell for a mobile station and said mobile station; selecting a target cell based on one or more measurement reports from said mobile station, wherein said measurement reports include measurements on reference signals transmitted from one or more candidate target cells; initiating a handover preparation to said selected target cell for said mobile station based on said downlink SINR value SINR DL ; and handing over said mobile station from said source cell to said selected target cell. Furthermore, the invention also relates to a method in a network control node, a network control node device, a computer program, and a computer program product thereof.

Description

technical field [0001] The invention relates to a handover method in a cellular wireless communication system. Furthermore, the invention relates to a method in a network control node, a network control node device, a computer program and a computer program product of a computer program. Background technique [0002] Typically, when a UE in active mode in a cellular wireless communication system traverses the network, the UE is handed over from one cell to the next and data can be sent and received without significant interruption due to these handovers . [0003] A handover (HO) procedure may consist of many steps. In most cellular radio communication systems, handovers are: [0004] 1) Controlled by the network, ie the UE is at the mercy of the network when it wants to connect to another cell. [0005] 2) Ready, that is, the target cell (the cell to which the UE will move) is ready. [0006] 3) UE assisted, i.e. UE will provide measurement reports to the serving cell ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/30
CPCH04W36/30H04W36/0058H04W36/0079H04W36/08H04W36/0085H04W24/10H04W36/008375
Inventor 彼得·莱格高慧周国华
Owner HUAWEI TECH CO LTD
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