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SDR (Signals Intelligence) for Hackers: Building a Low- Cost, Private 4G LTE Network
- New advancements enable the construction of cost-effective private cellular networks, beneficial for organizations valuing privacy like R&D firms and law offices.
- The article discusses building a private 4G LTE network using Software Defined Radio (SDR) technology.
- Popular open-source software srsRAN facilitates the setup of a 4G LTE network, offering efficient configuration and deployment.
- Components of LTE networks include EPC (Evolved Packet Core), eNBs (base stations), and UEs (User Equipment) like phones and modems.
- To create your LTE network, specific hardware like full duplex SDR, sim card reader, programmable LTE USIM cards, and an Android smartphone are required.
- Configuration processes involve setting parameters like MCC, MNC, ICCID, IMSI, KI, and OPC to authenticate devices on the network.
- srsRAN supports internet connectivity but not calls and SMS by default. VoLTE for calls necessitates additional components like IMS.
- Launching the network involves running srsepc followed by srsenb, leading to the establishment of a private 4G LTE network.
- Creating a private LTE network with minimal expense and technical know-how can safeguard privacy in scenarios where competitors or adversaries infiltrate conventional networks.
- For those interested in SDR and building private networks, exploring training programs like SDR for Hackers can enhance understanding and skills.
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