Advanced rake delay control

US7197063B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Andres Reial · Lomma, SE
• Anders Ericsson · Skutskär, SE
• Christer Östberg · Staffanstorp, SE
• Robert Svensson · Loftahammar, SE
• Johan Nilsson · Höllviken, SE
• Håkan Eriksson · Täby, SE

Key dates

• Filing date: Feb 7, 2003
• Grant date: Mar 27, 2007
• Expiry date: Apr 3, 2025

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B2201/70707
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Method and system are disclosed for providing advanced RAKE delay control in wireless communications systems. The RAKE delay control method and system of the invention is capable of tracking presently known paths over time and merging the tracking results with new path searcher results. The invention is particularly suitable for devices where the resources (e.g., computational load, power) available for detecting the multipath components are limited. The result is a resource efficient architecture for positioning the RAKE fingers to best extract the signal power available in the channel and to utilize the inherent diversity due to the multipath nature of the signal.