Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-12-11
2007-12-11
Ha, Dac V. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S146000, C375S267000, C375S140000, C370S204000, C370S320000, C370S441000, C370S479000
Reexamination Certificate
active
10473468
ABSTRACT:
The invention relates to the preparation and numerical optimization of non-linear space-time block codes for application in a digital mobile radio system, with a maximum transmission diversity for “Rate 1,” transmission systems in the case of two or more transmitter antennae and with complex symbols.
REFERENCES:
patent: 6804307 (2004-10-01), Popovic
patent: 7012967 (2006-03-01), Hammons et al.
Hassibi et al., “Cayley Differential Unitary Space-Time Codes”, Department of Electrical Engineering, California Institute of technology, Pasadena, CA, Bell Laboratories, Lucent Technologies, Murray Hill, NJ, Feb. 27, 2001, pp. 1-44.
Popovic, “New Complex Space-Time Block Codes for Efficient Transmit Diversity”, Ericsson Research, Stockholm, Sweden, IEEE 6th Int. Symp. On Spread-Spectrum Tech. & Appli., NJIT, NJ, USA, Sep. 6-8, 2000, pp. 132-136.
3GPP TS 25.211 V3.4.0 (Sep. 2000), Technical Specification, 3rd Generation Partnership Project, Technical Specification Group Radio Access Network, Physical Channels and Mapping of Transport Channels onto Physical Channels (FDD), Released 1999, pp. 1-43.
Tarokh et al., “Space-Time Codes for High Data Rate Wireless Communication: Performance Criterion and Code Construction”, IEEE Transactions on Information Theory, vol. 44, No. 2, Mar. 1998, pp. 744-765.
Tarokh et al., “Space-Time Block Codes from Orthogonal Designs”, IEEE Transactions on Information Theory, vol. 45, No. 5, Jul. 1999, pp. 1456-1467.
Simon, “Representations of Finite and Compact Groups”, 1996, Graduate Studies in Mathematics, American Mathematical Society, pp. 136-145.
Tirkkonen et al., “Complex Space-Time Block Codes for Four T× Antennas”, Nokia Research Center, Nokia Group, Finland, 2000.
Seeger Alexander
Vogl Ulrich
Ha Dac V.
Siemens Aktiengesellschaft
Staas & Halsey , LLP
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