Example embodiments are directed towards a base station, and corresponding method therein, for transmitting reference signals in a TOD wireless communications network, if a transmission format Is a Demodulation Reference Signal (DMRS) based format, the base station may transmit, to a user equipment, reference signals according a time and frequency Orthogonal Frequency Division Multiplex: (OFDM) grid featuring a special subframe configuration with a 6;6;2 timing ratio, where a DMRS: pattern is spanned among four time and frequency OFDM symbols.
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