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Method for setting power of small base station in heterogeneous network

A technology of small base stations and heterogeneous networks, which can be used in power management, electrical components, sustainable buildings, etc.

Inactive Publication Date: 2011-04-20
NEW POSTCOM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method sacrifices the performance of all CSG users in exchange for minimizing the impact on non-CSG users, which is not the best solution in actual network deployment

Method used

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  • Method for setting power of small base station in heterogeneous network
  • Method for setting power of small base station in heterogeneous network
  • Method for setting power of small base station in heterogeneous network

Examples

Experimental program
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Embodiment Construction

[0074] Taking the LTE system as an example, two specific embodiments of the power setting method provided by the present invention are given below. Such as figure 1 In the LTE same-frequency network deployment scenario shown, in an LTE system with a bandwidth of 10 MHz, an Fcell is powered on and started in the coverage area of ​​the Mcell, and there is a non-CSG user MUE1 near the Fcell. Since the MUE1 cannot be connected to the Fcell, it will receive strong co-channel interference from the Fcell. In contrast, since MUE2 is far away from Fcell, the interference from Fcell to it is negligible.

[0075] The following is an embodiment of the power setting method one, such as figure 2 Shown:

[0076] 1. Start Fcell;

[0077] 2. The Fcell measures the RSRP of the surrounding Mcells, and sets the measured maximum RSRP value as P_m (dBm). Then determine whether P_m meets the trigger condition of power setting, if not, set P_m=0dBm;

[0078] 3. Fcell calculates P1 from (5) acc...

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Abstract

The invention relates to the field of wireless communication, in particular to a method for setting the power of a small base station between adjacent cells in the heterogeneous network of a wireless communication system. According to the invention, an Fcell can automatically adjust the transmitting power in terms of ambient network deployment and distribution of non-CSG users, and the interference of the Fcell to ambient non-CSG users is effectively reduced, thus greatly improving the overall systematic performance of the heterogeneous network, maintaining favorable performance of users at the center of the cell while dramatically improving the performance of users at the edge of the cell of the heterogeneous network, and balancing well between Mcell and Fcell.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a power setting method for small base stations between adjacent cells in a heterogeneous network of a wireless communication system. Background technique [0002] Broadband wireless communication systems, such as the third generation mobile communication (3G), 3GPP long-term evolution (LTE) and the fourth generation mobile communication system (4G), due to the high modulation frequency, the radio wave path loss is large and the building penetration The capacity is low, and it is difficult to achieve effective indoor coverage by using a single macro cell (Macro cell, Mcell for short). Miniaturized base stations, such as femto cell base stations (Femto cell, hereinafter referred to as Fcell), can be installed in homes or offices by users themselves, so as to improve the problem of insufficient indoor coverage of broadband mobile communication systems. [0003] The present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/18H04W52/24
CPCY02B60/50
Inventor 温文坤纪子超江明
Owner NEW POSTCOM EQUIP
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