Implicit radio resource control state transitions

US11166336B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Sethuraman Gurumoorthy · San Jose, US
• Srirang A. Lovlekar · Cupertino, US
• Murtaza A. Shikari · Mountain View, US
• Srinivasan Nimmala · San Jose, US
• Haijing Hu · Beijing, CN
• Fangli Xu · Beijing, CN
• Yuqin Chen · Lo Wu, CN
• Longda Xing · San Jose, US
• Xu Ou · San Jose, US
• Li Su · Cupertino, US
• Vijay Venkataraman · San Jose, US
• Dawei Zhang · Saratoga, US
• Muthukumaran Dhanapal · Dublin, US
• Sree Ram Kodali · Sunnyvale, US
• Srinivas Burugupalli · Union City, US

Key dates

• Filing date: Feb 1, 2019
• Grant date: Nov 2, 2021
• Expiry date: Feb 1, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D30/70
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

This disclosure relates to performing implicit radio resource control state transitions in a cellular communication system. A wireless device may establish a radio resource control (RRC) connection with a cellular base station. A data inactivity timer length and a target RRC state for implicit RRC transitions may be determined. A data inactivity timer having the determined data inactivity timer length may be initiated. It may be determined that the data inactivity timer has expired. The wireless device may transition to the target RRC state based at least in part on determining that the data inactivity timer has expired.