5g Nr, Transmission Channels, Cellular Communication, 5g Technology, 5g Wireless.
(PRACH) is used for channel access in a 5G cell. A device starts random access by sending Random Access Preamble (PRACH preamble or MSG-1) over this channel. Fig 4: Four-step random-access procedure from the book in ref [1] References [1] E. Dahlman et al. “5G NR the Next Generation Wireless Access