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GSM Mobile Cellular Phone Interception and Tacking

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Looking to acquire GSM Mobile Cellular Phone Interception and Tracking System patents and technologies


Overview

 

GSM Mobile Cellular Phone Interception and Tacking System is a 10 band over-the-air GSM radio signal interceptor and direction finder that adopts the best available technology in the world today. The system features functionality that facilitate lawful interception of encrypted communication over GSM networks. The system is integrated inside a high mobility GSM Vehicle that provide law enforcement agents with the freedom never seen before in any active and passive intercept system. The phase-comparison method estimates the direction of the incoming electronic wave by measuring the phase difference of each dot signal on the antenna array. It has advanced processing technology, a high precision and accuracy ratio, and strong anti-jamming performance.

Patents and Intellectual Property Requested
The following is a brief outline of technical specifications:

Mobile Cellular Phone Interception and Tacking System is over-the-air GSM radio signal interceptor and direction finder, which can work in no-ciphered GSM network and in any ciphered GSM network like A5/1, A5/2 and A3/A8 of 3G network. (A5/1 and A5/2 is most wanted)

Operation Mode: Passive. Invisible and non-detectable monitoring of GSM phone  conversation.

DF (Direction Finding)tech: Based on Phase Comparison Technology with near GPS accuracy （Experimental conditions）

Type of system: GSM TRACKER on Vehicle. GSM TRACKER Portable.

Interception of Voice: Interception and decryption of A5/1, A5/2, A3 and A8 stream ciphers over encrypted voice channels. (A5/1 and A5/2 is most wanted)

Interception of Data: Intercepts GPRS, EDGE and UMTS (WCDMA) data communication

DF Accuracy: 1 degree

Measurement Rate: Every 5 millisecond

Interception Frequency: GSM 850/900/1800/1900 MHz

Typical Interception Range: 0-50 km, varies with network topology

Power Supply: 24V DC, 220V 50Hz AC

MTBF: 5000

Operation Environment: Temperature 10℃ to 50℃, Humidity <80%

Simultaneous Monitoring Channels: 10/modular

Interfaces: Standard

Additional Information
Integration with existing system

We need to know the an deciphering modular of A5/1/2 (with GPRS and EDGE) and A3/8 (means WCDMA UMTS) that can be integrated with our Existing System.  For the Integration our existing equipment can acquire the information (all the information in PC memory) captured from air interface as followes

(1)      Encryption mode used in one connection. (A5-1/2)

(2)      Several ciphered bursts data of one connection (SDCCH downlink signal and the frame No. of every TDMA burst)

(3)      We would like you to provide GSM A5/1/2 deciphering modular,

(4)      which can be integrated with our existing system in order to enable our system achieve interception and direction finding of GSM signals in A5/1/2 and its varietal enciphering environment.

(5)      Detailed requirement: quasi-real-time GSM A5/1/2 deciphering modular (software or hardware), which can get the Kc No. used in this connecting and output the deciphered data within 1 second.
 

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