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:
Jun. 24, 2025
Filed:
Oct. 21, 2021
T-mobile Usa, Inc., Bellevue, WA (US);
Muhammad Tawhidur Rahman, Bellevue, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
Abstract
Systems, devices, and techniques described herein relate to use of an optimized security mode command (SMC) procedure for securing communications. When connecting to a different cellular network (e.g., from a 5generation (5G) Radio Access Network (RAN)) to a different cellular network (e.g., a 4generation (4G) RAN), a User Equipment (UE) performs the SMC procedure without processing subsequent commands until a period of time has elapsed. Instead of allowing the UE to process subsequent commands received close in time to receiving the SMC, the subsequent commands may be delayed/suspended so that the UE has time to perform the SMC procedure and establish secure communications with the 4G LTE network. According to some examples, the delay is set to a period of time (e.g., 1 ms, 10 ms, or some other value) such that the subsequent command does not interfere with performing the SMC procedure.