RRHs are usually located close to antennas, often mounted on the cell tower. The BBUs used to be co-located with the cell-tower but current infrastructure has them located further away, at a central site. The evolution of RAN is shown in this diagram from Analysys Mason. Virtualized RAN (vRAN) is a virtualized BBU that runs […]
Cybersecurity agencies from Japan and the U.S. have warned of attacks mounted by a state-backed hacking group from China to stealthily tamper with branch routers and use them as jumping-off points to access the networks of various companies in the two countries. The attacks have been tied to a malicious cyber actor dubbed BlackTech by […]