Discontinuous reception mode with multiple-stage wake-up

US9872252B1 · kind B1 · utility

Inventors

• Peter Pui Lok Ang · San Diego, US
• Amir Aminzadeh Gohari · Sunnyvale, US
• Alexei Yurievitch Gorokhov · San Diego, US
• Raghu Narayan Challa · San Diego, US
• Tingfang Ji · San Diego, US
• Krishna Kiran Mukkavilli · San Diego, US
• Ravi Agarwal · San Diego, US
• Joseph Binamira Soriaga · San Diego, US
• Hao Xu · Cupertino, US

Key dates

• Filing date: Mar 15, 2017
• Grant date: Jan 16, 2018
• Expiry date: Mar 15, 2037

Classification

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

Abstract

Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.