Method and device for detection in cell random access

摘要

A method and a device for detection in cell random access are provided. The method includes: extending an original format used for a random access procedure to change a CP range defined by the original format; in the process of extracting a time-domain signal of a random access channel, extracting and splitting input data into time-domain antenna data in the original format and time-domain antenna data in an enhanced format, and performing signal extraction processing on the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format respectively; and in the process of detection, detecting the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format after the signal extraction processing to obtain detection information. The method can improve the performance of a BS and reduce the network construction costs without affecting an MS.

主权项

1. A method for detection in cell random access, comprising:
in a Long Term Evolution (LTE) protocol, extending an original format used for a random access procedure to change a cyclic prefix range defined by the original format, to obtain an enhanced format used for the random access procedure; in a process of extracting a time-domain signal of a random access channel, extracting and splitting input data into time-domain antenna data in the original format and time-domain antenna data in the enhanced format, and performing signal extraction processing respectively on the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format; and in a process of detection, detecting the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format after the signal extraction processing to obtain detection information, wherein performing the signal extraction processing respectively on the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format respectively comprises: performing filter extraction, two-dimensional Fourier transform (2DFT), reference sequence generation, frequency domain correlation, and inverse fast Fourier transform (IFFT) respectively on the time-domain antenna data in the original format and the time-domain antenna data in the enhanced format.