| US 7,539,238 B2 | ||
| Extended algorithm data estimator | ||
| Jung-Lin Pan, Selden, N.Y. (US); Yuejin Huang, Holbrook, N.Y. (US); and Ariela Zeira, Huntington, N.Y. (US) | ||
| Assigned to InterDigital Patent Holdings, Inc., Wilmington, Del. (US) | ||
| Filed on Jul. 15, 2008, as Appl. No. 12/173,163. | ||
| Application 12/173163 is a continuation of application No. 10/657435, filed on Sep. 08, 2003, granted, now 7,408,978, filed on Aug. 05, 2008. | ||
| Claims priority of provisional application 60/409973, filed on Sep. 09, 2002. | ||
| Prior Publication US 2008/0267321 A1, Oct. 30, 2008 | ||
| Int. Cl. H04L 27/06 (2006.01); H04B 1/707 (2006.01) | ||
| U.S. Cl. 375—149 [375/340] | 6 Claims |
| 1. A wireless communication apparatus for performing an extended algorithm (EA) with over-sampling, the apparatus comprising:
a first input receiving a signal r(1);
a second input for receiving a channel impulse response h(1);
a first zero padding unit for zero padding the received signal r(1) in the tail until the length of sequence achieves length Lm and output a first output rE(1);
a second zero padding unit for zero padding the channel impulse response h(1) in the tail until the length of the extended sequence achieves length Lm and outputting a second output u1;
a first processing unit for performing a discrete Fourier Transform (DFT) or fast Fourier transform (FFT) on rE(1) such that F(rE(1));
a second processing unit for performing a DFT or FFT on u1 such that F(u1);
a conjugate unit for conjugating F(u1) such that F(u1)*; and
a multiplier for multiplying the sequences F(rE(1)) and F(u1)* such that F(rE(1))·F(u1)*, wherein for M sampled sequences, sampled sequences 2, . . . , M are processed such that F(rE(m))·F(um)*, m=2, . . . , M.
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