Method and apparatus for providing non-scheduled network access

US11924882B2 · kind B2 · utility

Assignee

• NOKIA TECHNOLOGIES OY · FI

Inventors

• Andreas Maeder · Würzburg, DE
• Richard Waldhauser · Munich, DE
• Mikhail Vilgelm · Munich, DE
• Murat Guersu · Munich, DE
• Wolfgang Kellerer · Fürstenfeldbruck, DE

Key dates

• Filing date: Dec 21, 2018
• Grant date: Mar 5, 2024
• Expiry date: Dec 17, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W74/0838
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A terminal device selects are source indicator to be used for non-scheduled access and transmits it to an access device of the network in the non-scheduled access. If it determines based on a response to the non-scheduled access, that it has selected the same resource indicator as another terminal device, it keeps the resource indicator but selects different physical random access channel occasions by setting a time offset for a retransmission with the selected resource indicator. An initial waiting time may be determined by the access device (e.g. based on a traffic amount on the access channel) and transmitted to the terminal device for setting the time offset. Also, a layer (2) error caused by a random access channel resource collision of terminal devices may be determined at the access device and a feedback indicating a non-acknowledgement for layer (2) may be transmitted to colliding terminal devices.