Technique for synchronizing network access modules in a mobile communication device

US8170001B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Jürgen Lerzer · Dresden, DE
• Stefan Meyer · Langensendelbach, DE

Key dates

• Filing date: Dec 22, 2009
• Grant date: May 1, 2012
• Expiry date: Oct 27, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W56/0015
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A technique for synchronizing different network access modules in a mobile communication device is provided. A device embodiment (100) comprises a first network access module (102) having a first radio technology, or RAT, interface (114) and being clocked at a first clock frequency and a second network access module (104) having a second RAT interface (130) and being clocked at a second clock frequency, wherein the first clock frequency is different from the second clock frequency. A method implementation of this technique comprises the steps of generating a clock signal having the first clock frequency, outputting the clock signal for use as a first reference clock signal in the first network access module (102), converting the clock signal to the second clock frequency, and outputting the converted clock signal for is use a second reference clock signal in the second network access module (104).