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Method for detecting interference in long-term evolution system and equipment

A long-term evolution and consistent technology, applied in the field of interference detection, can solve the problems of inability to restore base stations, inability to locate quickly and accurately, and difficult to eliminate external interference, to achieve the effect of eliminating external interference and improving efficiency

Active Publication Date: 2012-02-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] If the base station of a cell cannot work normally due to external interference, but cannot quickly and accurately locate the source and cause of the external interference, it will be difficult to eliminate the external interference, and the affected base station will not be able to recover quickly. normal working condition

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  • Method for detecting interference in long-term evolution system and equipment
  • Method for detecting interference in long-term evolution system and equipment
  • Method for detecting interference in long-term evolution system and equipment

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Embodiment Construction

[0018] In the embodiment of the present invention, in the LTE system, if the cell can still receive signals when it is currently in an uplink time slot and no user accesses, the power of each RE in the PRB of several consecutive uplink subframes is detected, wherein one PRB includes multiple symbols in the time domain, and each symbol includes multiple REs in the frequency domain; if the power strength of REs that periodically occurs on a symbol is greater than the set strength, it is determined that the cell is receiving downlink transmission signals from neighboring cells interference.

[0019] figure 1 It is a schematic flow diagram of a specific embodiment of the method of the present invention.

[0020] see figure 1 As shown, the method for detecting interference in the LTE system provided by the embodiment of the present invention specifically includes the following steps:

[0021] Step 101: If the cell can still receive signals when it is currently in an uplink time ...

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Abstract

The invention discloses a method for detecting interference in a long-term evolution (LTE) system and equipment. The method comprises the following steps that: if a current community is in an uplink time slot, no user has accesses into the community and signals can be stilled received, the power of each RE in the packet receive buffers (PRBs) of a plurality of continuous uplink sub-frames is detected, wherein one PRB comprises a plurality of symbols in a time domain, and each symbol comprises a plurality of REs in a frequency domain; and if the power intensity of the REs is higher than the set intensity periodically on one symbol, the interference of the current community by downlink transmission signals of an adjacent community is determined. Consequently, according to the invention, the sources and the causes of the outside interference an be quickly and accurately positioned when a base station is interfered by the outside environment, so that the interference detection efficiency is improved.

Description

technical field [0001] The invention relates to the field of long-term evolution systems, in particular to a method and equipment for detecting interference in a long-term evolution system. Background technique [0002] In an uplink time slot of a Time Division Duplexing (TDD) Long Term Evolution (LTE) system, when a base station receives a signal from a User Equipment (UE), it will be subject to various interference sources However, due to the relatively complete uplink design of the LTE system, user frequency division, and user data using scrambling and interleaving, interference from other users is largely avoided. However, if there is no uplink UE, the base station will be affected by interference signals. [0003] In the downlink time slot of the TDD LTE system, the base station sends data to the user mobile station, and the power of the base station to send data to the user mobile station is much greater than the power of the user mobile station to send data to the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02
Inventor 倪立华王学强王连友
Owner DATANG MOBILE COMM EQUIP CO LTD
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