Title:
FREQUENCY DOMAIN PRACH FILTER FOR PRACH SIGNAL RECOVERY
Document Type and Number:
WIPO Patent Application WO/2019/237311
Kind Code:
A1
Abstract:
Systems and methods which provide for detection of a signal using resource elements in the frequency domain where the signal for which detection is provided is multiplexed with other signals having subcarrier spacing that is different than the signal for which detection is provided are disclosed. Embodiments may provide for detection of a physical random access channel (PRACH) signal in a cellular radio communication system using resource elements in the frequency domain, wherein the PRACH signal is multiplexed with signals of other channels (e.g., data and/or control channel signals) of the cellular radio communication system. A frequency domain filter, such as implementing inverse discrete Fourier transform (IDFT) with down-sampling using indices for PRACH recovery, may be utilized to extract PRACH samples from frequency domain resource elements provided in a resource grid corresponding to a different subcarrier spacing than that of the PRACH.
Inventors:
CHU YIJING (CN)
ZHANG YUXIAN (CN)
KWAN MAN WAI (CN)
TSANG ERIC KONG CHAU (CN)
ZHANG YUXIAN (CN)
KWAN MAN WAI (CN)
TSANG ERIC KONG CHAU (CN)
Application Number:
PCT/CN2018/091334
Publication Date:
December 19, 2019
Filing Date:
June 14, 2018
Export Citation:
Assignee:
HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (CN)
International Classes:
H04L27/26; H04W88/08
Foreign References:
| CN103379071A | 2013-10-30 | |||
| CN106792867A | 2017-05-31 | |||
| CN102869027A | 2013-01-09 | |||
| CN103503343A | 2014-01-08 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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