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:
Jul. 28, 2026
Filed:
Aug. 23, 2022
Apple Inc., Cupertino, CA (US);
Hong He, San Jose, CA (US);
Chunhai Yao, Beijing, CN;
Chunxuan Ye, San Diego, CA (US);
Dawei Zhang, Saratoga, CA (US);
Haitong Sun, Cupertino, 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);
Yushu Zhang, Beijing, CN;
APPLE INC., Cupertino, CA (US);
Abstract
Systems, methods, and apparatuses for cross division duplex (XDD) operation in a wireless communication system are described herein. A user equipment (UE) is configured with one or more sub-bands (SBs) within a larger overall bandwidth (BW) (e.g., represented by a component carrier (CC), a bandwidth part (BWP), etc.), and that use uplink (UL)/downlink (DL) resource allocation(s) that may be different than the larger BW. Configurations for such SB-specific (SBS) arrangements that use guard bands (GBs) between SBs are discussed. Mechanisms for slot format indications (SFIs) within such SBs using either SBS DCI or cross-SB DCI are discussed. Mechanisms for providing SBS uplink resource for initial access (e.g., random access) using at least one initial UL BWP that is configured relative to one or more SBs and that may be used by XDD-capable UEs are discussed.