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. 19, 2023
Filed:
Jul. 19, 2022
Qualcomm Incorporated, San Diego, CA (US);
Jing Lei, San Diego, CA (US);
Linhai He, San Diego, CA (US);
Hung Dinh Ly, San Diego, CA (US);
Seyong Park, San Diego, CA (US);
Naga Bhushan, San Diego, CA (US);
Ying Wang, San Diego, CA (US);
Wanshi Chen, San Diego, CA (US);
Joseph Binamira Soriaga, San Diego, CA (US);
QUALCOMM INCORPORATED, San Diego, CA (US);
Abstract
Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally, or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.