Space-time coding and channel estimation scheme, arrangement...

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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C375S267000, C375S240000

Reexamination Certificate

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06891897

ABSTRACT:
The evolution of high rate data services within future wireless networks will call for new RF access technologies to enable substantial increases in overall system spectral efficiency at an acceptably low cost to the user. Space-Time Coding (STC) is an antenna array processing technology currently simulating considerable Interest across the wireless industry. The invention provides a space-time coding apparatus having an input, a trellis encoder, a modulator, a demultiplexer, and a set of signal outputs wherein the input is operable to receive a stream of data. This allows de-multiplexing to take place after coding and modulation has been performed. The trellis encoder comprises a convolutional encoder operable to sequentially group data to provide coded bits to provide QPSK symbols. By the selection of convolutional encoder rates and/or modulation alphabets STCs of any desired dimensionality may be produced including multi-dimensional codes.

REFERENCES:
patent: 5056112 (1991-10-01), Wei
patent: 5301209 (1994-04-01), Wei
patent: 5838267 (1998-11-01), Wang et al.
patent: 6115427 (2000-09-01), Calderbank et al.
patent: 6128330 (2000-10-01), Schilling
patent: 6185258 (2001-02-01), Alamouti et al.
patent: 6208669 (2001-03-01), Cimini et al.
patent: 6353911 (2002-03-01), Brink
patent: 6424642 (2002-07-01), Schmidl et al.
patent: 6501803 (2002-12-01), Alamouti et al.
patent: 6614861 (2003-09-01), Terry et al.
Multidimensional M-PSK trellis codes for fading channels, Leonardo, E.J.; Lin Zhang; Vucetic, B.S.; Information Theory, IEEE Transactions on , vol.: 42 Issue: 4 , Jul. 1996, pp.: 1093-1108.*
Rate 3/4 Convolutional Coding of 16-PSK: Code Design and Performance Study Wilson, S.; Sleeper, H., II; Schottler, P.; Lyons, M.; Communications, IEEE Transactions on [legacy, pre—1988] , vol.: 32 Issue: 12 , Dec. 1984, pp.: 1308-1315.*
Trellis-coded multidimensional phase modulation Pietrobon, S.S.; Deng, R.H.; Lafanechere, A.; Ungerboeck, G.; Costello, D.J., Jr.; Information Theory, IEEE Transactions on , vol.: 36 Issue: 1 , Jan. 1990 pp.:63-89.*
Channel estimation and symbol detection for multiuser CDMA receivers using HMMs□□Perreau, S.; White, L.B.; Statistical Signal and Array Processing, 1998. Proceedings., Ninth IEEE SP Workshop on , Sep. 14-16, 1998; pp.:272-275.*
Perreau, “Channel Estimation and Symbol Detection for Space-Time Codes In Mobility Conditions”, IEEE 2000 Proceedings.

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