Method for predictive reception of physical layer downlink repetitions in a NB-IoT UE for prolonged battery lifetime

US11218858B2 · kind B2 · utility

Assignee

• SHENZHEN GOODIX TECHNOLOGY CO., LTD. · CN

Inventors

• Mathias Kurth · Dresden, DE
• Chethan Venkatesan · Dresden, DE

Key dates

• Filing date: Apr 15, 2020
• Grant date: Jan 4, 2022
• Expiry date: May 1, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W72/23
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

The disclosure discloses a method for predictive reception of physical layer downlink repetitions in NB-IoT UE. The object of the disclosure to find a method that prolongs the battery lifetime of IoT devices will be achieved by a method for predictive reception of physical layer downlink repetitions in NB-IoT devices, the method comprising the following steps: estimating an expected number of repeated sub-frames required for a successful reception of a current encoded and in sub-frames rate-matched downlink transmission from a base station to an IoT device by applying a redundancy estimation function, using the estimated expected number of repeated sub-frames as input of a repetition reception control function, where a feedback-loop between the redundancy estimation function and the repetition reception control function is used for refining and adapting the predictive reception of physical layer downlink repetitions in NB-IoT.