Patent ID: 9560655
Date: 2017-01-31
CPC Classifications: H04J,H04L,H04W

Claim:
1. A method for assigning resource elements to resource element groups in a communication system using Orthogonal Frequency-Division Multiplexing (OFDM), wherein the resource elements of a resource block pair are assigned to a plurality of m resource element groups according to a mapping that applies to each of a first and second frequency domain half of the resource block pair as follows: assigning the resource elements of the first OFDM symbol to the resource element groups, in a first predetermined order of the resource elements and a second predetermined order of the resource element groups, and assigning the resource elements of the second OFDM symbol and of each of the remaining OFDM symbols in the resource block pair to the resource element groups, in the first predetermined order of the resource elements and in the second predetermined order of the resource element groups, such that the first resource element group to be assigned for an OFDM symbol is the one subsequent-in-order to the last resource element group assigned for the previous OFDM symbol, wherein space-frequency block coding (SFBC) is used for transmitting resource element groups in a resource block pair, one out of a plurality of SFBC pairs is defined to use two resource elements of the same resource element group within each OFDM symbol, wherein one of the two resource elements of the SFBC pair in the same OFDM symbol has a subcarrier index k and another of the two resource elements of the SFBC pair has a subcarrier index k+3 or k+6 in a frequency domain.