Communication apparatuses and communication methods for random access

• Main Authors: KO RAI, KOH TIEN MING BENJAMIN, HUANG LEI, SUZUKI HIDETOSHI
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The present disclosure provides apparatuses and methods for establishing a random access. The apparatuses include a terminal which comprises circuitry which, in operation, generates a first random access preamble; and a transmitter which, in operation, transmits the first random access preamble to a base station on a first physical random access channel (PRACH) occasion (RO) among a plurality of RO candidates, the plurality of RO candidates being determined based on PRACH configuration information received from the base station, wherein the first RO is assigned within a first frequency region, the first frequency region being equal to a first sub-band in which a listen before talk (LBT) procedure is performed at the terminal. 本公开提供用于建立随机接入的设备和方法。该设备包括终端，该终端包括生成第一随机接入前导码的电路以及发送器，所述发送器在多个RO候选中的第一物理随机接入信道(PRACH)时机(RO)上向基站发送第一随机接入前导码，所述多个RO候选基于从基站接收到的PRACH配置信息来确定，其中在第一频率区域内分配第一RO，该第一频率区域等于在终端处执行先听后说(LBT)过程的第一子带。