Patent ID: 8670499

Claim:
A method for communication, comprising: in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number; allocating an actual number of the spatial layers, which does not exceed the upper limit, for transmission to a given receiver; encoding input data with an Error Correction Code (ECC) to produce a given number of code words that is restricted to be at most two, and modulating the code words to produce a respective given number of streams of modulated symbols; mapping the streams of the modulated symbols onto the allocated actual number of the spatial layers; and transmitting the actual number of the spatial layers from the transmitter to the given receiver, and comprising, when the actual number of spatial layers is between one and four, mapping the modulated symbols onto the spatial layers in accordance with the table shown in FIG. 4A in which d (q) (n) denotes an n th modulated symbol originating from a code word q, and x (p) (n) denotes an n th value of a spatial layer p.