Title:
SIGNAL SCRAMBLING METHOD AND APPARATUS, TERMINAL, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/066931
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of wireless access. Disclosed are a signal scrambling method and apparatus, a terminal, and a computer-readable storage medium. The signal scrambling method comprises: generating a mask scrambling sequence according to a preset synchronization signal period and a specified system frame number index; unmasking a log likelihood ratio sequence on the basis of the mask scrambling sequence to obtain an unmasked scrambling sequence; and generating a combined scrambling sequence on the basis of the unmasked scrambling sequence to perform physical broadcast channel information blind detection. According to the present application, in a blind detection process, a signal is scrambled prior to entering a decoder, thereby ensuring that a decoded all-zero signal is necessarily illegitimate and thus reducing the false detection rate of all-zero verification, and also ensuring that a decoding result is not all-zero when an original MIB signal is all-zero and thus reducing the missing detection ratio. The missing detection problem when MIB original information is all-zero and the false detection problem under a low signal-to-noise ratio are solved.
Inventors:
ZHAO LIJUAN (CN)
XIA ZIJIE (CN)
YU HAN (CN)
XIA ZIJIE (CN)
YU HAN (CN)
Application Number:
PCT/CN2023/116696
Publication Date:
April 04, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
SANECHIPS TECH CO LTD (CN)
International Classes:
H04L25/02
Domestic Patent References:
| WO2022042473A1 | 2022-03-03 |
Foreign References:
| CN114095118A | 2022-02-25 | |||
| CN111817823A | 2020-10-23 | |||
| CN111213330A | 2020-05-29 | |||
| US20180375696A1 | 2018-12-27 |
Attorney, Agent or Firm:
TEE & HOWE INTELLECTUAL PROPER TY ATTORNEYS (CN)
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