Patent · US Expired

Timing drift compensation in wireless packet-based systems

US7106709B2 · kind B2 · utility

22Cited by

12References

42Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Stefan Davidsson · Skärholmen, SE
Mathias Pauli · Koblenzer Straße, DE
Peter Schramm · Erlangen, DE
Fabian Wenger · Handen, SE
Udo Wachsmann · Schwabach, DE
Roger Walther · Timrå, SE

Key dates

Filing date	Nov 28, 2001
Grant date	Sep 12, 2006
Priority date	—
Expiry date	May 11, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2027/0095
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A radio receiver system (30) comprises a radio receiver (41), a receiver sample clock (60), which is used for sampling a modulated base-band signal; and a timing correction unit (100). The timing correction unit (100) performs, in the frequency domain, a timing drift compensation between a transmitter sample clock (66) and the receiver sample clock (60). In one example context of implementation, the plural modulated radio frequency carriers have been modulated using Orthogonal Frequency Division Multiplexing (OFDM).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.