The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Jul. 12, 2024
Sharp Kabushiki Kaisha, Sakai, JP;
Po-Chun Chou, Taipei, TW;
Chia-Hung Lin, Taipei, TW;
Mei-Ju Shih, Taipei, TW;
Wan-Chen Lin, Taipei, TW;
Yen-Hua Li, Taipei, TW;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A method for performing codebook-based Physical Uplink Shared Channel (PUSCH) transmission by a User Equipment (UE) is provided. The method receives a Radio Resource Control (RRC) message including a PUSCH configuration indicating a codebook-based PUSCH transmission. The method receives a Downlink Control Information (DCI) format including a first field and a second field. The first field indicates an 8-port Sounding Reference Signal (SRS) resource. The second field indicates an index associated with a Transmission Precoding Matrix Indicator (TPMI) and the number of transmission layers. The method determines the number of codewords to be one or two based on the number of transmission layers. The method determines a codeword-to-layer mapping for spatial multiplexing based on the number of transmission layers and the number of codewords. The method determines a precoding matrix based on the index and the codeword-to-layer mapping. The method performs the codebook-based PUSCH transmission using the precoding matrix.