TDD-LTE system uplink interference testing tool and testing method
An interference test and tool technology, applied in transmission systems, transmission monitoring, advanced technology, etc., can solve the problem of ineffective spectrum testing of interference sources and extract the specific frequency and power of interference sources, so as to achieve the effect of accurate search
Pending Publication Date: 2016-12-21
GUANGZHOU HANYUN INFORMATION TECH
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Problems solved by technology
[0003] At present, domestic and foreign technologies are unable to test and extract the specific frequency and power of the interference source for the effective spectrum of the TDD-LTE uplink interference source.
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[0035] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0036] refer to figure 1 As shown, the present invention provides an antenna 1 for receiving a space signal transmitted by a base station; a first radio frequency module amplifier 2 connected to the antenna 1 for amplifying the signal received by the antenna 1; The baseband processing module 3 is used to carry out baseband processing to the signal amplified by the first radio frequency module amplifier 2; the central processing unit 4 connected with the baseband processing module 3 is used to digitally filter the signal after the baseband processing, and process the digital filter and the second radio frequency module amplifier 13 connected to th...
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The invention discloses a TDD-LTE system uplink interference testing tool and testing method. The testing tool comprises an antenna, a first radio-frequency module amplifier, a baseband processing module, a central processor, and a second radio-frequency module amplifier, wherein the antenna is used for receiving space signals transmitted by a base station; the first radio-frequency module amplifier is connected with the antenna, and is used for carrying out amplification on the signals received by the antenna; the baseband processing module is connected with the first radio-frequency module amplifier, and is used for carrying out baseband processing on the signals amplified by the first radio-frequency module amplifier; the central processor is connected with the baseband processing module, and is used for carrying out digital filtering on the signals after the baseband processing and carrying out synchronous equipment processing on the signals after the digital filtering; and the second radio-frequency module amplifier is connected with the central processor, and is used for carrying out the amplification on the signals processed by the central processor and outputting the signals to a frequency spectrograph or a frequency sweeper. According to the TDD-LTE system uplink interference testing tool and testing method disclosed by the invention, a frequency spectrum for signal frequencies and power size of an interference source can be effectively extracted; and meanwhile, a specific position of the interference source can be found accurately in a short time.
Description
technical field [0001] The present invention relates to the technical field of communication testing, and more specifically relates to a TDD-LTE system uplink interference testing tool and testing method. Background technique [0002] For mobile communication networks, the prerequisite for ensuring service quality is to use clean spectrum and signal coverage. That is, it is not used or interfered with by other systems. Otherwise, the performance of the interfered system and the use of end users will be greatly affected. With the gradual construction of 4G LTE base stations, the coexistence of 2 / 3 / 4G base stations has formed, and the probability of inter-system interference has also increased significantly. Among the base stations that have been built so far, a large number of mobile 4G TD-LTE base stations have been found disturbed. These interferences include the blocking of 2 / 3G cells to TDD-LTE cells, intermodulation and spurious interference, LTE network interference ...
Claims
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IPC IPC(8): H04W24/08H04B17/345
CPCH04B17/345H04W24/08Y02D30/70
Inventor 杨戬张振周健
Owner GUANGZHOU HANYUN INFORMATION TECH