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RU

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2 325 757

(13)

C2

(51)

IPC

H04B1/00(2006-01-01)

(21) (22)

Application

2005101415/09, 2003-06-20

(24)

Start date

2003-06-20

(22)

Actual filing date

2003-06-20

(45)

Published

2008-05-27

(72)

Inventor

Uolton Dzhej R.Ketchum Dzhon U.

(73)

Holder

Kvehlkomm Inkorporejted

DIVERSITY TRANSMISSION METHOD FOR COMMUNICATION SYSTEMS WITH MULTIPLE INPUTS AND MULTIPLE OUTPUTS, WHICH USE ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING Russian patent published in 2008 - IPC H04B1/00 

Abstract RU 2325757 C2

FIELD: physics.

SUBSTANCE: in this method, a certain diversity transmission mode is selected for each one or more data flows to use one of several possible transmission modes. These transmission modes may include the frequency division transmission mode, the Walsh diversity transmission mode, or the space time transmit diversity (STTM) transmission mode. Each diversity transmission mode transmits data with time, frequency, or space redundancy, or their combination. Each data flow is coded and modulated to present the modulation symbols, which are additionally processed based on the selected division transmission mode to present the transmission symbols. For the orthogonal frequency multiplexing (OFM), the transmission symbols for all data flows are additionally modulated using the OFM to present a transmission symbol flow for each transmitting antenna used for the data transmission.

EFFECT: provides possibility to use several diversity transmission modes depending on receiving device functionality and channel state.

54 cl, 12 dwg

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RU 2 325 757 C2

Authors

Uolton Dzhej R.

Ketchum Dzhon U.

Dates

2008-05-27—Published

2003-06-20—Filed

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