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Signal interference method and signal interference device

A signal jammer and signal jamming technology, applied in the field of communication, can solve problems affecting network quality, signal jammers cannot distinguish uplink and downlink time slots, uplink time slot interference, etc.

Active Publication Date: 2013-07-03
中国移动通信集团广西有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a signal interference method and a signal jammer, which are used to solve the problem that the signal jammer in the prior art cannot distinguish the uplink and downlink time slots, and also interferes with the uplink time slots, thereby affecting the network quality.

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  • Signal interference method and signal interference device

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Embodiment 1

[0022] The signal jammer described in Embodiment 1 of the present invention can be applied in time-division communication systems, such as TD-SCDMA and TD-LTE communication systems; specifically, Embodiment 1 of the present invention takes the TD-SCDMA communication system as an example, Describe the signal jammer in detail.

[0023] As shown in Figure 1(a), it is a schematic structural diagram of a signal jammer in Embodiment 1 of the present invention, the signal jammer includes a synchronization unit 11 and an interference signal processing unit 12, wherein:

[0024] The synchronization unit 11 is used to obtain a synchronization signal from the base station, and send the synchronization signal to the interference signal processing unit 12, the synchronization signal includes time slot information of a subframe, and the subframe can be one or more The interference signal processing unit 12 is configured to determine a downlink time slot according to the synchronization sign...

Embodiment 2

[0051] Such as image 3 As shown, it is a schematic flow chart of the signal interference method in Embodiment 2 of the present invention, and the method includes the following steps:

[0052] Step 101: The signal jammer acquires a synchronization signal from a base station, and the synchronization signal includes time slot information of a subframe.

[0053] The signal jammer can specifically obtain signals from the base station through an external or built-in receiving antenna or GPS, and perform synchronous processing on the signals obtained from the base station, specifically including operations such as signal extraction and analog-to-digital conversion, to obtain synchronous signals, The synchronization signal is a digital synchronization signal.

[0054] Preferably, the signal jammer can also determine the time domain corresponding to the network time slot ratio between the time slots in the obtained synchronization signal according to the preset correspondence between...

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Abstract

The invention discloses a signal interference method and a signal interference device. A synchronous signal of a base station is obtained by utilizing the signal interference device, and an uplink time slot and a downlink time slot are differentiated based on time slot information in the synchronous signal. An interference signal is only emitted in the downlink time slot. The problems that a signal interference device in the prior art can not differentiate the uplink time slot and the downlink time slot and interferes with the uplink time slot, and therefore network quality is affected are solved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a signal interference method and a signal interference device. Background technique [0002] At present, in some specific scenarios, such as various examination rooms, schools, churches, courts, prisons, military centers and other places where the use of communication terminals such as mobile phones is prohibited, signal jammers are usually used to shield the communication terminals. The interference signal sent by the device can form garbled interference in the message signal received by the communication terminal, so that the interfered communication terminal cannot normally detect the data sent from the base station, so that it cannot establish a connection with the base station, manifested as searching the network, no signal, Phenomena such as no server system. [0003] Current signal jammers can be applied in Global System of Mobile communication (GSM), Code Division...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00
Inventor 苏华强陈海峰顾国龙李丽智
Owner 中国移动通信集团广西有限公司