Load control method

A technology of load control and load index, which is applied in access restriction, network traffic/resource management, electrical components, etc., can solve problems such as inability to control load, large range of noise floor variation, and inability to ensure judgment results, etc., to improve accuracy , the effect of high reliability

Active Publication Date: 2009-05-27
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, for a WCDMA communication system as a self-interfering system, the existence of interference is unavoidable, and the noise floor usually changes very quickly and in a large range when the interference exists, which makes the actual noise floor and the pre-set noise floor different. Correspondingly, the judgment made by comparing the current RTWP measured in the actual noise floor environment with the RTWP threshold calculated based on the preset noise floor environment cannot ensure accurate judgment results, which will lead to the inability to effectively control the load

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Embodiment 1

[0030] Embodiment 1: In this embodiment, SIR, which is not affected by changes in the noise floor, is used as a load index to perform load control.

[0031] figure 2 It is a flowchart of an SIR-based load control method according to an embodiment of the present invention. In the figure, the load control task of NodeB for HSUPA scheduling is taken as an example. It is assumed that the cell includes N UEs in total, and the N UEs are respectively identified as UE1, UE2, ...UEN, where NodeB calculates the scheduling load threshold based on the preset noise floor environment, that is, the scheduling signal-to-interference ratio threshold SIR Threshold , the embodiment of the present invention one load control method based on SIR comprises:

[0032] Step 201: NodeB obtains the current load of the cell, that is, the current SIR of the cell Current .

[0033] Step 202: NodeB compares SIR Current and SIR Threshold , and judge whether to implement HSUPA scheduling according to the...

Embodiment 2

[0040] Embodiment 2: In this embodiment, Ti, which is not affected by the change of the background noise, is used as the load index for load control.

[0041] image 3 It is a flow chart of the Ti-based load control method in Embodiment 2 of the present invention. In the figure, the load control task of NodeB for HSUPA scheduling is taken as an example. It is assumed that the cell includes N UEs in total, and the N UEs are respectively identified as UE1, UE2, ...UEN, where NodeB calculates the scheduling load threshold based on the preset noise floor environment, that is, the scheduling throughput threshold Ti Threshold . The Ti-based load control method in Embodiment 2 of the present invention includes:

[0042] Step 301: NodeB obtains the current load of the cell, that is, the current throughput Ti of the cell Current .

[0043] Step 302: NodeB compares Ti Current and Ti Threshold , and judge whether to implement HSUPA scheduling according to the comparison result. Sp...

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Abstract

The present invention discloses load control method. Said method includes A, obtaining cell current load indices; B, according to acquired current load indices and load indices threshold to determine whether current making load control, if then making load control; wherein said load indices not influenced by base noise variation. The present invention provided load control method can effectively controlling load in interference existent status, further raising load control accuracy.

Description

technical field [0001] The invention relates to a wireless resource management technology of a Wide Code Division Multiple Access (WCDMA) communication system, in particular to a load control method in the WCDMA communication system. Background technique [0002] An important task of radio resource management in the WCDMA communication system is to control the load of the communication system, which is also called the overload control of the communication system. As far as each cell is concerned, load control tasks including access control, primary congestion control, fast congestion control, high-speed uplink packet data access (HSUPA) scheduling, etc., are usually completed by the base station NodeB in charge of the cell, as follows Briefly describe how NodeB performs these specific load control tasks. [0003] 1) Access control. NodeB presets the access load threshold of the cell and measures the current load of the cell in real time. When receiving an access request, No...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W48/06
Inventor 聂际敏
Owner HUAWEI TECH CO LTD
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