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. 09, 2025
Filed:
Jan. 20, 2022
Qualcomm Incorporated, San Diego, CA (US);
Lei Sun, Shanghai, CN;
Peng Wu, Shanghai, CN;
Arun Prasanth Balasubramanian, San Diego, CA (US);
Jason Tan, San Diego, CA (US);
Yuyi Li, Shanghai, CN;
Vaishakh Rao, San Diego, CA (US);
Sivaram Srivenkata Palakodety, San Diego, CA (US);
Vishal Dalmiya, San Diego, CA (US);
Mariano Iberico Torres, San Diego, CA (US);
Shailesh Maheshwari, San Diego, CA (US);
Tom Chin, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Aspects of the present disclosure provide mechanisms for fast hyper frame number (HFN) resynchronization of Packet Data Convergence Protocol (PDCP) Protocol Data Units (PDUs). A wireless communication device (e.g., a PDCP entity at a wireless communication device) can calculate a current PDCP count of a current PDCP PDU of a plurality of PDCP PDUs received from a radio link control (RLC) sublayer based on a PDCP sequence number (SN) of the current PDCP PDU and an HFN of a first missing PDCP PDU after a successfully received PDCP PDU. The PDCP count may be calculated using the HFN of the first missing PDCP PDU in response to a gap between the PDCP count of the first missing PDCP PDU and the actual PDCP count of the current PDCP PDU being greater than a PDCP window size.