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:
Nov. 30, 2021
Filed:
May. 22, 2019
Apple Inc., Cupertino, CA (US);
Alexander Sirotkin, Tel-Aviv, IL;
Xu Zhang, Beijing, CN;
Jaemin Han, Hillsboro, OR (US);
Feng Yang, Beijing, CN;
Honglei Miao, Nuremberg, DE;
Jerome Parron, Fuerth, DE;
Markus Dominik Mueck, Unterhaching, BY;
Jing Zhu, Portland, OR (US);
Ellen Liao, Hillsboro, OR (US);
Jeongho Jeon, San Jose, CA (US);
Youn Hyoung Heo, Seoul, KR;
Anthony Lee, San Diego, CA (US);
Seau S. Lim, Swindon, GB;
Marta Martinez Tarradell, Hillsboro, OR (US);
Meghashree Dattatri Kedalagudde, Hillsboro, OR (US);
Puneet Jain, Hillsboro, OR (US);
Bharat Shrestha, Hillsboro, OR (US);
Apple Inc., Cupertino, CA (US);
Abstract
A Next Generation Node-B (gNB) and methods of communication are generally described herein. The gNB is configurable to operate as a source gNB. The gNB is configured with logical nodes including a gNB central unit (gNB-CU) and a gNB distributed unit (gNB-DU). The gNB-CU comprises a gNB-CU control plane (gNB-CU-CP) for control-plane functionality, and a gNB-CU user plane (gNB-CU-UP) for user-plane functionality. When a handover of a User Equipment (UE) from the source gNB to a target gNB is performed, the gNB transfers, from the gNB-DU to the gNB-CU-UP, a downlink data delivery status (DDDS) message to indicate that the gNB-CU-UP is to stop transfer, to the gNB-DU, of downlink data intended for the UE.