Random access preamble sending method and apparatus

Abstract

Embodiments of the present invention disclose a random access preamble sending method and an apparatus. The method includes: sending, by user equipment, a first random access preamble to a network device, where the first random access preamble is used by the user equipment to access the network device; and when the user equipment fails in accessing the network device by using the first random access preamble, sending at least one second random access preamble to the network device, where access characteristic information of each second random access preamble is different from that of the first random access preamble, the access characteristic information includes at least one of a time length, a transmit beam, and a random access resource, and the at least one second random access preamble is used by the user equipment to access the network device. In the embodiments of the present invention, a problem of a random access failure in a future wireless communications network caused by the fact that a random access preamble does not arrive at the network device is resolved, thereby increasing a probability that the random access preamble arrives at the network device and increasing a random access success rate.

Dependencies are inferred from the claim text.