User plane integrity protection in cellular networks

US11751055B2 · kind B2 · utility

Assignee

• T-Mobile USA, Inc. · US

Inventors

• John Humbert · Roeland Park, US
• Wafik Abdel Shahid · Kenmore, US
• Joshua Finger · Covington, US
• Geoffrey Todd Gibson · Hamburg, DE
• Jean Cheryl Trakinat · Ewa Beach, US
• Ming Shan Kwok · Seattle, US
• Boris Antsev · Bothell, US

Key dates

• Filing date: Oct 5, 2020
• Grant date: Sep 5, 2023
• Expiry date: Sep 28, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W80/08
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Integrity protection is used to assist in ensuring the secure transmission of wireless data within a cellular network. Instead of performing integrity protection on each packet data unit (PDU) transmitted/received within a PDU session, integrity protection is performed on a portion of PDUs transmitted within a cellular network. For instance, partial integrity protection may be performed on at least one predetermined PDU (e.g., the first, second, fourth, . . . ) that is transmitted via a Physical Downlink Shared Channel (PDSCH)/Physical Uplink Shared Channel (PUSCH) during a communication session. By performing partial integrity protection, user data may be transmitted more quickly throughout the cellular network, compared to performing full integrity protection, while still providing integrity protection.