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Communication shielding gating method based on redirection mechanism

A redirection and mechanism technology, applied in wireless communication, electrical components, etc., can solve the problems of huge transmission power cost, low communication shielding efficiency, inability to achieve precise control of CDMA2000EV-DO mobile communication, etc., to achieve communication control and precise communication. effect of regulation

Inactive Publication Date: 2015-04-29
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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Problems solved by technology

However, the disadvantages of this method are: first, the communication shielding efficiency is low, and when suppressing the CDMA2000EV-DO signal with strong immunity to interference, a huge transmission power price will be paid (the power of the interference signal is 21dB higher than that of the normal communication signal) , in order to achieve the effect of shielding; second, it is impossible to realize the precise control of CDMA2000EV-DO mobile communication. In special occasions, it is necessary to implement precise shielding or gating for designated users, and electromagnetic signal suppression cannot meet the requirements.

Method used

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  • Communication shielding gating method based on redirection mechanism

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Embodiment Construction

[0013] A communication shield gating method based on redirection mechanism, such as figure 1 As shown, it includes the following two parts:

[0014] 1. Virtual cell to realize CDMA2000 terminal adsorption:

[0015] Through the CDMA2000 base station wirelessly broadcasting cell information, two new cells are "virtualized", and the location area to which the virtual cell belongs is set (different from the location area of ​​adjacent cells). The virtual cell information includes: frequency point, PN offset, transmit power, location area code, etc. The working frequency points of the two virtual cells are respectively set as PRL frequency points (for example, 283, 201 and 242 in China, firstly 283) and non-PRL frequency points. When the CDMA2000 mobile terminal within the effective coverage monitors the signal of the virtual cell, and the signal condition meets the conditions for cell handover or reselection, the CDMA2000 mobile terminal will switch from the original operator’s ...

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Abstract

The invention discloses a communication shielding gating method based on a redirection mechanism. According to the method, a CDMA2000 terminal is forced to execute cell handover or reselection by reasonably arranging the transmitted power of a virtual cell region so as to realize adsorption to the CDMA2000 terminal; by using a location updating mechanism and on the basis of a communication gating shielding list (ISMI number list), the precise regulation of a mobile terminal is realized. By adopting the method, the problems of high-performance communication shielding and precise regulation of the CDMA2000 are solved. Through the method, high performance communication shielding is realized (communication shielding can be realized when the interference signal is 4-6dB higher than a communication signal); by using the location updating mechanism, the terminal can be distinguished accurately, so that accurate communication regulation is realized.

Description

technical field [0001] The invention relates to a CDMA2000EV-DO communication shielding and gating method based on a redirection mechanism. Background technique [0002] CDMA2000EV-DO is one of the mainstream mobile communication systems in China and has been widely used in various industries. In application fields such as anti-terrorism, stability maintenance, security protection, etc., it is sometimes necessary to control regional CDMA2000EV-DO mobile communications due to security needs. The invention mainly aims at the CDMA2000EV-DO mobile communication system, and designs an accurate mobile communication control scheme. [0003] For the regulation of mobile communication, most of the previous technical means used electromagnetic signal suppression to achieve interference to mobile communication signals and achieve the purpose of communication shielding. However, the disadvantages of this method are: first, the communication shielding efficiency is low, and when suppre...

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Application Information

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IPC IPC(8): H04W36/00H04W36/08
CPCH04W36/00H04W36/0033H04W36/0055H04W36/08
Inventor 饶志宏邱涛康英来邓杨凡
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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