Patent ID: 9729217
Date: 2017-08-08
CPC Classifications: H04B,H04J,H04L

Claim:
1. A method for generating a plurality of signals, generation of the plurality of signals comprising: selecting whether to perform a precoding process; selecting one matrix from among N matrices F[i], wherein i is an integer no less than 0 and no more than N−1, and N is an integer 3 or greater, by hopping between the matrices over each of a plurality of slots, the N matrices F[i] defining the precoding process that is performed on a plurality of baseband signals when the precoding process is performed; and generating a first precoded signal z1 and a second precoded signal z2 by performing the precoding process, which corresponds to the matrix selected from among the N matrices F[i], over each of the plurality of slots on a first baseband signal s1 included in the plurality of baseband signals and a second baseband signal s2 included in the plurality of baseband signals, the first precoded signal z1 and the second precoded signal z2 satisfying (z1, z2) the N matrices F[i] being expressed as: λ representing an arbitrary angle, α representing a positive real number, θ wherein x and y are any integers no less than 0 and no more than N−1 satisfying x≠y, each of the N matrices being selected at least once in a predetermined number of slots, a result of the selecting whether to perform the precoding process, the first precoded signal z1, and the second precoded signal z2 being transmitted from a first antenna and a second antenna respectively in the same frequency at the same time.