Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-07-05
2008-12-16
Ahn, Sam K (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
Reexamination Certificate
active
07466759
ABSTRACT:
The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
REFERENCES:
patent: 2004/0196919 (2004-10-01), Mehta et al.
Lindskog Erik David
Paulraj Arogyaswami
Rajan Balaji Sundar
Tujkovic Djordje
Vummintala Shashidhar
Ahn Sam K
Beceem Communications Inc.
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