| abstract |
A network login method is proposed for application to a user equipment, and includes: in a millimeter wave frequency band, Q scanning beams having Q identification codes are received on M millimeter wave time units, wherein each millimeter wave time unit includes a load a beamforming header region including N beam search signals, wherein each beam search signal corresponds to a different one of the Q scanning beams, where M, N and Q are integers greater than 1, and M * N = Q; the beam search signal of the Q scanning beams is used to determine the optimal beam of the user equipment; after determining the optimal beam of the user equipment, the beam scanning signals of the Q scanning beams are used to determine the Q scanning beams. The best scanning beam in the ; and the random access preamble in the millimeter wave band. |