Patent ID: 8422427
Filing Date: 2013-04-16
Classification: H04L,H04W

Abstract:
1. A method for transmitting a signal via a random access channel by a specific user equipment (UE), the method comprising: selecting, by the specific UE, one random access preamble sequence set from among plural predetermined random access preamble sequence sets by considering a size of information to be transmitted by the specific UE and a degree of a path loss, wherein sequences within the predetermined random access preamble sequence sets are generated by applying a cyclic shift to a CAZAC (Constant Amplitude Zero Auto Correlation) sequence, and wherein a first number of the sequences and a second number of the sequences are allocated to each of a first and a second random access preamble sequence set within the predetermined random access preamble sequence sets; randomly selecting, by the specific UE, a specific sequence within the selected one random access preamble sequence set; and transmitting, by the specific UE, the selected specific sequence via the random access channel.