Time-error and frequency-error correction in a multi-carrier...

Details Time-error and frequency-error correction in a multi-carrier... Time-error and frequency-error correction in a multi-carrier...

2011-08-02

2011-08-02

Le, Nhan (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S182100, C455S323000, C375S326000

Reexamination Certificate

active

07991378

ABSTRACT:
Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end circuits configured to receive first and second wireless communication signals transmitted via first and second radio-frequency carriers at distinct first and second radio frequencies, respectively, a control processor configured to designate a master carrier signal and a slave carrier signal from among the received wireless communication signals, and a frequency error estimation circuit configured to estimate a first receiver frequency error using the received master carrier signal. The control processor is further configured to calculate a second receiver frequency error from the first receiver frequency error, for use in compensating one or more receiver processes performed on the slave carrier signal.

REFERENCES:
patent: 5953649 (1999-09-01), Junell
patent: 6049708 (2000-04-01), Tsujita
patent: 6571088 (2003-05-01), Hasegawa
patent: 7072783 (2006-07-01), Makhlouf et al.
patent: 7149260 (2006-12-01), Kim et al.
patent: 2007/0098097 (2007-05-01), Khan et al.
patent: 2007/0286262 (2007-12-01), Sestok et al.
patent: 2008/0151980 (2008-06-01), Lindoff et al.
patent: 03/098258 (2003-11-01), None
patent: 2005/029722 (2005-03-01), None
patent: 2008/042575 (2008-04-01), None
Meyr, H. et al. “Chapter 8 Frequency Estimation.” Digital Communication Receivers: Synchronization, Channel Estimation, and Signal Processing, John Wiley & Sons, Inc., 1998, pp. 445-504.
Smida, B. et al. “A Spectrum-Efficient Multicarrier CDMA Array-Receiver and Diversity-Based Enhanced Time and Frequency Synchronization.” IEEE Transactions on Wireless Communications, vol. 6, No. 6, Jun. 2007, pp. 2315-2327.
3rd Generation Partnership Project. 3GPP TR 25.825, V1.0.0 (May 2008). “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Dual-Cell HSDPA Operation.”
3rd Generation Partnership Project. 3GPP TR 36.913, V8.0.0 (Jun. 2008). “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Requirements for Further Advancements for E-UTRA (LTE-Advanced)(Release 8).”
3rd Generation Partnership Project. 3GPP TSG RAN #39. RP-080228. “Feasibility Study on Dual-Cell HSDPA Operation.” Puerto Vallarta, Mexico, Mar. 4-7, 2008.

Affiliated with

Also associated with

Rating

Time-error and frequency-error correction in a multi-carrier... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time-error and frequency-error correction in a multi-carrier..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-error and frequency-error correction in a multi-carrier... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2710136