Invention Grant
- Patent Title: Method, apparatus, and system for reestablishing radio communication links due to radio link failure
-
Application No.: US17104811Application Date: 2020-11-25
-
Publication No.: US11895723B2Publication Date: 2024-02-06
- Inventor: Adrian Edward Escott , Mungal Singh Dhanda , Anand Palanigounder , Soo Bum Lee
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Loza & Loza, LLP
- Main IPC: H04W76/19
- IPC: H04W76/19 ; H04W36/00 ; H04W12/106 ; H04L9/40 ; H04W36/30

Abstract:
One feature pertains to a method that includes establishing a radio communication connection with a first radio access node (RAN) that uses control plane signaling connections to carry user plane data. The method also includes determining that the wireless communication device is experiencing radio link failure (RLF) with the first RAN and that the radio communication connection should be reestablished with a second RAN. A reestablishment request message is transmitted to the second RAN that includes parameters that enable a core network node communicatively coupled to the second RAN to authenticate the wireless communication device and allow or reject reestablishment of the radio communication connection. The parameters include at least a message authentication code (MAC) based in part on one or more bits of a non-access stratum (NAS) COUNT value maintained at the wireless communication device.
Public/Granted literature
- US20210084707A1 METHOD, APPARATUS, AND SYSTEM FOR REESTABLISHING RADIO COMMUNICATION LINKS DUE TO RADIO LINK FAILURE Public/Granted day:2021-03-18
Information query