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. 30, 2025
Filed:
Aug. 04, 2021
Apple Inc., Cupertino, CA (US);
Yushu Zhang, Beijing, CN;
Dawei Zhang, Saratoga, CA (US);
Haitong Sun, Cupertino, CA (US);
Hong He, San Jose, CA (US);
Huaning Niu, San Jose, CA (US);
Oghenekome Oteri, San Diego, CA (US);
Seyed Ali Akbar Fakoorian, San Diego, CA (US);
Wei Zeng, Saratoga, CA (US);
Weidong Yang, San Diego, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Systems and methods for associating phase tracking reference signal (PTRS) and demodulation reference signal (DMRS) ports for multi-beam physical uplink shared channel (PUSCH) transmissions are described herein. A base station may provide, to a user equipment (UE), PTRS and DMRS port associations for the multiple beams on which the PUSCH is transmitted. In some cases, a 2-bit downlink control information (DCI) field may be used to alternatively provide single beam or multiple beam PTRS and DMRS port associations to a UE. For non-codebook (NCB) based transmissions, the UE may alternatively determine PTRS and DMRS port associations for multiple beams independently of any PTRS and DMRS port association indicated in DCI.