Method of transmitting data in a mobile communication system

摘要

Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.

主权项

1. A method for transmitting a preamble sequence from user equipment to a base station to at least improve detection performance, the method comprising:
generating, by the user equipment, a specific sequence, having a length (L), from a Zadoff-Chu Constant Amplitude Zero Auto Correlation (CAZAC) sequence; applying, by the user equipment, a circular shift to the specific sequence by multiplying the specific sequence by an exponential sequence; repeating, by the user equipment, the circular-shifted specific sequence to generate a consecutive sequence having a length (N*L), wherein N is an integer greater than 1; generating, by the user equipment, the preamble sequence by concatenating a single cyclic prefix (CP) to a front end of the consecutive sequence; and transmitting, by the user equipment, on a random access channel, the preamble sequence to the base station to access a cellular network.