Device and method for transmitting random access preamble

摘要

Base Station (BS) and User Equipment (UE) apparatuses for configuring a Random Access CHannel (RACH), and methods thereof, are provided. The method for a BS to configure a RACH includes generating configuration information on RACH resources, transmitting the configuration information on the RACH resources to a UE, receiving a random access preamble multiplexed on a plurality of continuous RACH resources from the UE, extracting the random access preamble multiplexed on the plurality of continuous RACH resources, and detecting the extracted random access preamble. The method for a UE to configure a RACH includes receiving configuration information on RACH resources from a BS, selecting occupied RACH resources among a plurality of continuous RACH resources, generating a random access preamble, multiplexing the generated random access preamble on the selected RACH resources, and transmitting the random access preamble on the selected RACH resources to the BS.

主权项

1. A method for allocating a Random Access CHannel (RACH) resource at a base station in a wireless communication system employing Time Division Duplex (TDD) mode, the method comprising:
allocating the RACH resource at one side of a system frequency band in a time capable of allocating the RACH resource; and transmitting RACH resource allocation information to a user equipment, wherein the allocating of the RACH resource includes allocating a first set of continuous resource blocks at one side of the system frequency band in a first time, and allocating a second set of continuous resource blocks at the other side of the system frequency band in a second time, and wherein each of the first set of continuous resource blocks and the second set of continuous resource blocks is determined based on RACH resource frequency index.