Patent ID: 8165239
Filing Date: 2012-04-24
Classification: H04L

Abstract:
1. A method for coding data symbols transmitted in an orthogonal frequency division multiplex radio transmission via at least two transmitting antennas, comprising: providing two first adjacent data symbols of a selected first subcarrier for initialization of differential space time frequency block code coding which takes place in a subcarrier direction; using the two first adjacent data symbols of the selected first subcarrier for differential space time frequency block code coding of similarly positioned data symbols of other subcarriers, where the differential space time frequency block code coding takes place from the data symbols of the first subcarrier onward over adjacent subcarriers in the subcarrier direction, each subcarrier having at two symbol positions two further adjacent data symbols formed by differential space time frequency block code coding in dependence on the two first adjacent data symbols of the first subcarrier; using on each other subcarrier the two further adjacent data symbols, formed by differ-ential space time frequency block code coding, for initialization of a differential space time block code coding, taking place in an orthogonal frequency division multiplex symbol direction, which is carried out from a third orthogonal frequency division multiplex data symbol onward, and using on the selected first subcarrier, the two first adjacent data symbols formed by differential space time frequency block code coding, for initialization of a differential space time block code coding, taking place in an orthogonal frequency division multiplex symbol direction, which is carried out from a third orthogonal frequency division multiplex data symbol onward.