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Method, device and system for measuring system noise

A system noise and measurement system technology, applied in the mobile field, can solve problems that affect the wireless resource management power control strategy, cannot be changed, and affect the accuracy of baseband power measurement values, etc., to increase measurement functions, enhance accuracy, ensure accuracy and The effect of stability

Inactive Publication Date: 2009-08-26
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

If the measured value fails at this time, it will seriously affect the power control strategy of the radio resource management (RRM)
In the current solution, the system noise correction value is usually obtained when the base station performs equipment testing, and is configured to the baseband, and cannot be changed unless manually reconfigured
In fact, due to device aging, temperature and other reasons, the system noise correction value will change with the environment after a period of time, thus affecting the accuracy of the baseband power measurement value

Method used

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  • Method, device and system for measuring system noise
  • Method, device and system for measuring system noise

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Embodiment Construction

[0019] In order to make the purpose, technical solution, and advantages of the present invention clearer, the technical solution provided by the present invention will be further described in detail below with reference to the accompanying drawings and examples. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] see figure 1 , the method for measuring system noise provided by the embodiment of the present invention includes:

[0021] Step 11, acquire idle air interface time-frequency resources of the measurement frame.

[0022] Step 12, obtain the average system noise power of the measurement frame according to the free air interface time-frequency resources.

[0023] Take the frame structure of t...

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Abstract

The embodiment of the invention discloses a method, a device and a system for detecting system noise, which can enhance accuracy of base-band power measured value. The method provided by the embodiment of the invention includes steps of obtaining idle air interface time frequency resource of uplink frame of measurement frame; obtaining average system noise power of the measurement frame according to the obtained idle air interface time frequency resource of the uplink frame; carrying out smooth filtering to the average system noise power of the measurement frame to obtain smooth value of the average system noise power of the measurement frame; and using the smooth value of the average system noise power of the measurement frame to linearly correct practical measured value of base-band power and using the linear correction value as final measured value of the base-band power. The technical solution of the embodiment of the invention increases measurement function of middle radio frequency system noise and can be used in OFDM system.

Description

technical field [0001] The present invention relates to the field of mobile technology, in particular to a method, device and system for measuring system noise. Background technique [0002] Current mobile networks, such as the physical layer of Worldwide Interoperability for Microwave Access (Wimax), Long Term Evolution (LTE), and Ultra Mobile Broadband (UMB), aim to reduce the uplink transmission power by coordinating terminal transmission power. The packet error rate and the purpose of ensuring normal business have realized the measurement power control of multiple terminals. That is, by measuring the Received Signal Strength Indication (RSSI) and Carrier to Interference + Noise Ratio (CINR) of the uplink user, the demodulation threshold is determined according to the modulation and coding method of the user , by raising or lowering the power, the measurement control of the uplink received signal is realized, and the purpose of reducing the packet error rate is achieved....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04W52/24H04W52/34H04W24/00
Inventor 张鹏程郑勐龚小年郎涛
Owner HUAWEI TECH CO LTD
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