Patent ID: 9059755
Filing Date: 2015-06-16
Classification: H04B,H04L

Abstract:
1. A communication device adapted for single-carrier transmission over a MIMO radio link, the communication device comprising: a transmitter comprising a plurality of antennas; and processing circuitry, said processing circuitry being adapted for single-carrier transmission and to apply a precoding matrix to a symbol vector to generate a precoded vector, said precoding matrix having four rows and two or three columns, said transmitter being adapted to transmit said precoded vector over a MIMO radio link using only a single carrier, wherein said precoding matrix is constrained such that each row comprises at least one zero element, such that the number of non-zero elements in each row is less than the number of columns in said precoding matrix, and said precoding matrix is further constrained in that each of said columns has at least one non-zero element and each of said rows has at least one non-zero element.