TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD, AND COMPUTER-READABLE STORAGE MEDIUM FOR EXECUTING TWO-STEP RANDOM ACCESS PROCEDURE

摘要

A terminal apparatus that establishes, on the basis of a two-step random access procedure, an initial connection with a base station apparatus by transmitting a first message to the base station apparatus and receiving a second message, which is a reply to the first message, from the base station apparatus, is provided. The first message includes a preamble to be transmitted using one sequence selected from a plurality of sequence candidates and predetermined information for initial access, each one of the plurality of sequence candidates is associated with a radio resource to be used for transmitting the predetermined information, wherein a first radio resource associated with a first candidate of the plurality of sequence candidates is different from a second radio resource associated with a second candidate of the plurality of sequence candidates.