Patent ID: 9439223
Filing Date: 2016-09-06
CPC Classification: H04J,H04L,H04W

Claim Text:
1. A method for transmitting a random access preamble by a terminal in a wireless communication system employing time division duplex (TDD), the method comprising: receiving configuration information to allocate a random access channel (RACH) resource in an uplink pilot time slot (UpPTS) from a base station; acquiring a physical resource block among a plurality of physical resource blocks in the UpPTS using a frequency resource index according to the configuration information; generating a random access preamble; transmitting the random access preamble using a first resource determined based on the physical resource block if the terminal transmits the random access preamble in a first time; and transmitting the random access preamble using a second resource determined based on the physical resource block if the terminal transmits the random access preamble in a second time, wherein the first resource and the second resource are configured to different positions in the UpPTS.