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Inter cell interference coordination (ICIC) method and apparatus thereof

A technology for inter-cell interference and interference coordination, applied in the field of communications, can solve problems such as inability to achieve, Iub port delay is large, and achieve the effect of good interference coordination effect

Active Publication Date: 2012-10-17
NANJING ZHONGXING XIN SOFTWARE CO LTD
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Problems solved by technology

However, in the TD-HSDPA system, the dynamic interference coordination algorithm needs to transmit the relevant information of adjacent cells from the Iub interface (the interface between the radio network controller and the node B), and the delay of the Iub interface is too large, so that it cannot be implemented in the current network

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  • Inter cell interference coordination (ICIC) method and apparatus thereof
  • Inter cell interference coordination (ICIC) method and apparatus thereof
  • Inter cell interference coordination (ICIC) method and apparatus thereof

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] figure 1 It is a flowchart of a method for inter-cell interference coordination according to an embodiment of the present invention. As shown in the figure, the inter-cell interference coordination method according to the embodiment of the present invention includes:

[0030] Step S102, judging whether all UEs in the cell have GBR (Guaranteed BitRate, guaranteed bit rate);

[0031] Step S104, when not all UEs in the cell have GBR, obtain the SIRs of all UEs in the cell, and determine the Gini coefficient of the cell according to the SIRs of all UEs in the cell;

[0032] Step S106, when the above-mentioned Gini coefficient is greater than the preset first threshold (denoted as Thr 1 ), the ...

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Abstract

The invention discloses an inter cell interference coordination (ICIC) method and an apparatus thereof. The method comprises the following steps: determining whether all the UE possess GBRs in a cell; if the GBRs are not possessed by all the UE in the cell, acquiring SIRs of all the UE in the cell and determining a Gini coefficient in the cell according to the SIRs of all the UE in the cell; when the Gini coefficient is greater than a preset first threshold, starting a interference coordination function of the cell. In the prior art, dynamic ICIC can not acquire adjacent cell information in time so as to adjust the cell and static interference coordination is only suitable for an occasion with an uniform load so that an interference coordination effect is not ideal. Through a technical scheme provided in the invention, the above problem can be solved and the each cell can achieve a good interference coordination effect under the condition that the load is nonuniform.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for inter-cell interference coordination. Background technique [0002] The data rate provided by the existing cellular mobile communication system (such as 3G system) is very different between the center of the cell and the edge of the cell, which not only affects the capacity of the entire system, but also makes the quality of service obtained by users in different locations greatly different. fluctuations. Therefore, the new generation of broadband wireless communication systems currently being developed all regard improving cell edge performance as one of the main demand indicators. Especially in the cell edge area, the performance is greatly affected by inter-cell interference. And because the physical layer technology itself has no inter-cell interference suppression mechanism, if the frequency reuse factor is 1, the inter-cell interference level will...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/04H04B17/00H04B17/345
Inventor 吴友芮华李兰兰陈海生胡啸
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD
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