Method and apparatus for positioning pilot in an OFDMA...

Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions

Reexamination Certificate

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C370S204000, C375S130000

Reexamination Certificate

active

07869341

ABSTRACT:
An apparatus and method for positioning a pilot in a transmitter for an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system. In the apparatus, a consecutive block assignment determiner determines whether it will assign a consecutive block or a single block in a frequency axis or a time axis. A pilot tone pattern generator determines a pilot pattern in the block by applying a predetermined rule according to the determination result. A pilot tone inserter positions pilots in the block based on the determined pilot pattern.

REFERENCES:
patent: 6654429 (2003-11-01), Li
patent: 6996195 (2006-02-01), Kadous
patent: 7012882 (2006-03-01), Wang et al.
patent: 2006/0018394 (2006-01-01), van Zelst et al.
patent: 2006/0120270 (2006-06-01), Han et al.
patent: 2006/0285479 (2006-12-01), Han et al.
patent: 2007/0133386 (2007-06-01), Kim et al.
patent: 2007/0195899 (2007-08-01), Bhushan et al.
Chen, Shaoping, et al., Intercarrier Interference Suppression and Channel Estimation for OFDM Systems in Time-varying Frequency-selective Fading Channels, IEEE, May 2004, IEEE Transactions on Consumer Electronics, vol. 50, Issue 2, pp. 429-435.
Hu, Die, et al., Optimal pilot sequence design for multiple-input multiple-output OFDM systems, IEEE, Dec. 2005, Global Telecommunications Conference, 2005, Globecom '05, vol. 4, PChenage(s): 1-5.
Zhao, Xueyuan, et al., A Comparative Analysis of Pilot Placement Schemes in Frequency-selective Fast Fading Mimo Channel, IEEE, Apr. 26-28, 20007, Wireless Telecommunications Symposium, 2007, pp. 1-7.

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