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. 01, 2025
Filed:
May. 01, 2020
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/0833 (2024.01); H04L 5/00 (2006.01); H04W 56/00 (2009.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/1263 (2023.01); H04W 74/08 (2024.01);
U.S. Cl.
CPC ...
H04W 74/0841 (2013.01); H04L 5/0051 (2013.01); H04W 56/001 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/1263 (2013.01); H04W 74/0866 (2013.01);
Abstract
This disclosure describes improving a 4-step RACH procedure by using a 2-step RACH procedure. A UE transmits a PRACH preamble and associated MsgA physical uplink shared channel (PUSCH) on a configured time and frequency resource. After successful detection of the PRACH preamble, and decoding of the MsgA PUSCH, the gNB transmits MsgB in the second step. Generally, a mapping is used between the PRACH preamble and the PUSCH resource unit for 2-step RACH. This disclosure describes the mapping for 2-step RACH.