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:
Sep. 08, 2026
Filed:
Apr. 27, 2023
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Haitong Sun, Cupertino, CA (US);
Huaning Niu, San Jose, CA (US);
Hong He, San Jose, CA (US);
Dawei Zhang, Saratoga, CA (US);
Wei Zeng, San Diego, CA (US);
Yushu Zhang, Beijing, CN;
Jie Cui, San Jose, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2607 (2013.01); H04L 27/261 (2013.01);
Abstract
Embodiments herein provide sounding reference signals (SRS) enhancements to support more than four layers of codebook based uplink operation (e.g., 6 and 8 layer uplink operation). To support 6 and 8 layer SRS uplink operation, some embodiments herein use multiple SRS Comb offsets. Some embodiments propose an increase maximum number of SRS cyclic shifts. Some embodiments use a flexible SRS cyclic shift selection.