Latency reduction in TDD systems with carrier aggragation

US11223467B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Thomas FEHRENBACH · Berlin, DE
• Dennis Wieruch · Berlin, DE
• Bernd Holfeld · Berlin, DE
• Thomas WIRTH · Berlin, DE
• Cornelius HELLGE · Berlin, DE
• Lars THIELE · Berlin, DE
• Thomas Haustein · Potsdam, DE

Key dates

• Filing date: Feb 11, 2019
• Grant date: Jan 11, 2022
• Expiry date: Feb 11, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W74/0833
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

The present invention is concerned with different novel concepts for reducing latency in data transmission. These concepts may be exploited by a transceiver configured to perform wireless data communication with a third party device by aggregating time division duplex carriers having different temporal distribution of uplink times and downlink times. These concepts may further be exploited by an apparatus configured to perform data transmission or reception via allocations of transmission resources of aggregated carriers in units of transmission time intervals into which the aggregated carriers are subdivided, wherein the aggregated carriers are temporally subdivided into the transmission time intervals in a temporal grid, respectively, wherein the aggregated carriers' grids are temporally mutually offset.