Method for realizing feature discovery and identification of mobile digital communication equipment
A technology of communication equipment and implementation method, applied in the field of communication, can solve problems such as inability to detect effectively
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Embodiment 1
[0019] The present invention recognizes and fuzzily locates a target object with a known feature code within a certain distance range on the premise of knowing the hardware feature code of the mobile device of the target object, and the distance range is related to the used hardware feature code.
[0020] Portable SDR device (hereinafter referred to as SDR device): the communication protocol supported by USRP B210 in the present invention includes:
[0021] 1) GSM protocol.
[0022] 2) 4G-LTE protocol.
[0023] 3) Wi-Fi protocols (802.11a, 802.11b, 802.11g, 802.11n).
[0024] 4) Bluetooth protocol.
[0025] The analysis module of the present invention is used for analyzing the signal message captured by the SDR, and the analysis function is related to the protocol. The analysis module processes and analyzes the data in the buffer, and discovers the hardware feature code of the mobile digital communication equipment contained in the wireless signal.
[0026] Such as figure...
Embodiment 2
[0040] Such as figure 2 Shown, GSM protocol information capture of the present invention comprises:
[0041] 1) Load the GSM signal module of the SDR device;
[0042] 2) Turn on the GSM base station frequency point detection function;
[0043] 3) According to the strength of the signal, poll the handshake data between the mobile device and the base station at each frequency point, and capture it to the data buffer (denoted as Buffer);
[0044] 4) The analysis module analyzes the Mobile Identity data in the Buffer, from the offset address 0x40 to 0x46 to the GSM cellular network hardware feature code IMSI (International Mobile Subscriber Identity).
[0045] 4G-LTE protocol information capture of the present invention comprises:
[0046] 1) Load the LTE signal module of the SDR device;
[0047] 2) Build a temporary LTE base station.
[0048] 3) inducing the mobile device to trigger an RRC connection request to attach to the temporary LTE base station;
[0049] 4) Capture ...
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