DUAL FREQUENCY TRACKING LOOP FOR OFDMA SYSTEMS

Methods and apparatus for correcting frequency errors between a carrier frequency of a signal received by a wireless device and a reference frequency local to the device. For certain aspects, such a method generally includes receiving a signal in a receiver having an LO producing a reference frequen...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NARAYANA SUNIL KUMAR KANDUKURI, CHALLA RAGHU N, BANISTER BRIAN C, SRINIVASAN SHIVRATNA G, BREHLER MATTHIAS
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING RESONANT CIRCUITS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION TUNING RESONANT CIRCUITS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Methods and apparatus for correcting frequency errors between a carrier frequency of a signal received by a wireless device and a reference frequency local to the device. For certain aspects, such a method generally includes receiving a signal in a receiver having an LO producing a reference frequency, a radio frequency (RF) phase-locked loop (PLL), and a digital rotator, estimating a frequency difference between a carrier frequency of the received signal and the LO reference frequency, and applying the estimated frequency difference to the RF PLL and the digital rotator.