US 11,818,577 B2
Method and device for negotiating security and integrity algorithms
Ahmad Shawky Muhanna, Richardson, TX (US); and Xin Zeng, Shanghai (CN)
Assigned to FutureWei Technologies, Inc.
Filed by Futurewei Technologies, Inc., Plano, TX (US)
Filed on Apr. 4, 2022, as Appl. No. 17/713,160.
Application 17/713,160 is a continuation of application No. 16/120,906, filed on Sep. 4, 2018, granted, now 11,297,502, issued on Apr. 5, 2022.
Claims priority of provisional application 62/556,053, filed on Sep. 8, 2017.
Prior Publication US 2022/0232384 A1, Jul. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 12/10 (2021.01); H04L 9/40 (2022.01); H04W 12/04 (2021.01); H04L 9/32 (2006.01); H04L 9/06 (2006.01); H04L 9/14 (2006.01); H04W 12/06 (2021.01); H04W 12/08 (2021.01); H04W 76/10 (2018.01); H04W 60/00 (2009.01)
CPC H04W 12/10 (2013.01) [H04L 9/0618 (2013.01); H04L 9/14 (2013.01); H04L 9/3242 (2013.01); H04L 63/061 (2013.01); H04L 63/08 (2013.01); H04L 63/20 (2013.01); H04L 63/205 (2013.01); H04W 12/04 (2013.01); H04W 12/06 (2013.01); H04W 12/08 (2013.01); H04L 2209/80 (2013.01); H04W 60/00 (2013.01); H04W 76/10 (2018.02)] 21 Claims
OG exemplary drawing
 
1. A method for establishing secure communications in a wireless network, the method comprising:
receiving, by a user equipment (UE) from a base station, an access stratum (AS) security mode command (SMC) message during an AS SMC procedure, the AS SMC message being integrity protected with a radio resource control (RRC) integrity key and indicating a first integrity protection algorithm and a first encryption algorithm for a RRC traffic signaling protection procedure between the UE and the base station;
transmitting, by the UE to the base station, a security command complete message that is integrity protected with the RRC integrity key and the first integrity protection algorithm as indicated in the AS SMC message; and
receiving, by the UE from the base station during a data radio bearer (DRB) establishment procedure that is performed after transmitting the security command complete message, a RRC message comprising a user plane (UP) integrity indication and a UP encryption indication for a DRB of a protocol data unit (PDU) session between the UE and the base station.