MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202647110473 A) filed by Panasonic Intellectual Property Corporation Of on September 15, 2026, for Pdcp Keystream Handling For Lower Layer Mobility Failures To Ensure Data Security And Integrity.
Inventors include Dhananjaya, Harshith; Kuang, Quan; and Suzuki, Hidetoshi.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: Provided are a user equipment, a base station, and a handover method for LTM cell switching and LTM cell recovery. For example, the user equipment comprises: a transceiver, which, in operation, receives from a source cell an indication to switch from the source cell to a target cell, wherein the source cell and the target cell are operated by a first base station. The user equipment further comprises circuitry, which, in operation, performs an attempt to switch from the source cell to the target cell, the attempt to switch including: changing a count variable to a first value; and control the transceiver to transmit, via the target cell, to the first base station a switching completion message encrypted using the first value of the count variable. After determining a failure in the attempt to switch, the circuitry performs an attempt to recover to a candidate cell out of a set of preconfigured candidate cells operated by the first base station, the attempt to recover including: setting the count variable to a second value different from the first value; and control the transceiver to transmit, via the candidate cell, to the first base station a recovery completion message encrypted using the second value of the count variable.
Disclaimer: Curated by HT Syndication.
