| US 7,499,406 B2 | ||
| Method and apparatus for estimating and reporting the quality of a wireless communication channel | ||
| Philip J. Pietraski, Huntington Station, N.Y. (US); Gregory S. Sternberg, Mt. Laurel, N.J. (US); Rui Yang, Greenlawn, N.Y. (US); and Bin Li, Ronkonkoma, N.Y. (US) | ||
| Assigned to InterDigital Technology Corporation, Wilmington, Del. (US) | ||
| Filed on Apr. 04, 2007, as Appl. No. 11/732,904. | ||
| Application 11/732904 is a continuation of application No. 10/940079, filed on Sep. 14, 2004, granted, now 7,215,646. | ||
| Claims priority of provisional application 60/517696, filed on Nov. 05, 2003. | ||
| Prior Publication US 2007/0183335 A1, Aug. 09, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G06F 11/00 (2006.01); H04B 3/46 (2006.01); H04B 17/00 (2006.01); H04Q 1/20 (2006.01) | ||
| U.S. Cl. 370—241 [375/224] | 18 Claims |
| 1. A method of estimating the quality of a wireless communication channel comprising:
receiving a modulated signal via the wireless communication channel;
performing a channel estimation on the modulated signal to obtain a channel estimate;
performing a signal-to-interference (SIR) estimation on the channel estimate to obtain a pre-demodulation SIR estimate;
demodulating the modulated signal based on the channel estimate to obtain a demodulated signal;
performing a SIR estimation on the demodulated signal to obtain a post-demodulation SIR estimate; and
estimating the quality of the wireless communication channel based on the pre-demodulation SIR estimate and the post-demodulation
SIR estimate.
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