阅读说明：本技术 两步随机接入信道配置 (Two-step random access channel configuration ) 是由 曹一卿 雷静 郑瑞明 于 2020-05-14 设计创作，主要内容包括：描述了用于无线通信的方法、系统和设备。无线设备可接收用于两步随机接入信道规程的第一随机接入消息的配置。无线设备可至少部分地基于该配置和无线设备的速度来选择用于传送第一随机接入消息的副载波间隔和解调参考信号出现次数。无线设备可使用副载波间隔和解调参考信号出现次数来传送两步随机接入信道规程的第一随机接入消息。(Methods, systems, and devices for wireless communication are described. The wireless device may receive a configuration of a first random access message for a two-step random access channel procedure. The wireless device may select a subcarrier spacing and a number of occurrences of demodulation reference signals for transmitting the first random access message based at least in part on the configuration and a speed of the wireless device. The wireless device may transmit a first random access message of a two-step random access channel procedure using a subcarrier spacing and a number of occurrences of a demodulation reference signal.)