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Interference detecting processing system and method

A technology of interference detection and processing system, applied in transmission systems, transmission monitoring, electrical components, etc., can solve the problems of inaccurate measurement of reverse load metrics, system malfunction, inability to judge the total received bandwidth power, etc. Power control convergence, reducing the effect of power lift

Inactive Publication Date: 2007-01-31
SHANGHAI HUAWEI TECH CO LTD
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Problems solved by technology

[0008] Due to the interference in the system, the noise floor P N changes due to the received total bandwidth power I total will follow the noise floor P N Changes with the change, so it will cause the measurement index of the reverse load to be inaccurate
Here, despite the noise floor P N is preset, but in practice, the value will change due to interference
[0009] Therefore, the disadvantage of the existing technology is: since there is no special treatment for interference, after the interference occurs, it is impossible to judge whether the rise of the total received bandwidth power is caused by the interference or normal services, which will lead to system misoperation

Method used

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  • Interference detecting processing system and method
  • Interference detecting processing system and method

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Embodiment Construction

[0028] Based on the interference characteristics, it can be divided into time-division interference and frequency-division interference. The invention mainly detects and eliminates time-division interference. Because time-division interference specifically refers to interference signals that have a certain structure in time, and interference signals that have a periodic structure on the order of milliseconds (ms), there are signals at some times and no signals at some times. In the frequency band, it may be a narrowband signal or a wideband signal. Due to the existence of this interference, the received signal also has a time structure: when there is interference, the total received bandwidth power increases; when there is no interference, the received received total bandwidth power decreases. By measuring the received power at the chip level at the base station (Node B) physical layer, the short-term power average value is obtained, so as to automatically judge whether there...

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Abstract

The invention discloses an interference detecting and processing system and method. And the system comprises A / D converter, frequency converting unit, and extracting and filtering unit and also comprising collecting module and analyzing module, where the collecting module is used to collect the base band signal extracted and filtered by the extracting and filtering unit, make short-time energy integration on the base band signal and input the integration result into the analyzing module; the analyzing module is used to form a receiving power-time relation sequence and detect and judge whether interference exist. And it implements detection and elimination for time-sharing interference, obtaining accurate system load, reducing system mis-triggering caused by increase of total bandwidth power and assuring power control astringency.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an interference detection and processing system and method. Background technique [0002] Code division multiple access system, including narrowband code division multiple access (CDMA) communication system, wideband code division multiple access (WCDMA) communication system, code division multiple access 2000 (CDMA2000) communication system, time division duplex - synchronous code division multiple access ( TD-SCDMA) communication system. It is a self-interference system, which requires the reverse load to be maintained within a certain range, so that the stability of the reverse link can be guaranteed under the premise of ensuring the capacity of the reverse link, and there will be no problems due to the reverse load As a result, a large area of ​​the system is dropped, and the network is dropped. [0003] The metric index of the above reverse load is η ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B15/00H04B17/00H04B1/10H04W24/08
Inventor 聂际敏张劲林
Owner SHANGHAI HUAWEI TECH CO LTD
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