Wake up procedure for a base station in a communications network

US8787843B2 · kind B2 · utility

Assignee

• Nokia Siemens Networks Oy · FI

Inventors

• Martin Dottling · Neubiberg, DE
• Jurgen Michel · Cambridge, US

Key dates

• Filing date: Jun 26, 2009
• Grant date: Jul 22, 2014
• Expiry date: Mar 4, 2030

Classification

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

Abstract

A mobile apparatus transmits a message for waking up an apparatus of a communications network in order to achieve access to the communications network. An apparatus of the communications network receives the message, determines whether the apparatus is in a standby mode in which the transmitter is deactivated, and shifts to a wake up mode, in which the transmitter is kept deactivated, for at most an apparatus-specific offset time in response to receipt of the message in case the apparatus is in the standby mode. The apparatus detects whether an acknowledgment message acknowledging that a successful access to the communications network has been achieved based on the message is received in the wake up mode of the apparatus, and the apparatus shifts to an active mode in which the transmitter is activated and provides access to the communications network for the mobile apparatus based on the message using the transmitter in case no acknowledgment message has been received in the wake up mode when the apparatus-specific offset time elapses. Otherwise, the apparatus shifts to the standby mode when the acknowledgement message is received in the wake up mode. The acknowledgment message may…