A UE for wireless communication, comprising: a first receiving module, receiving a first signaling; and a first transmitting module, transmitting a first radio signal; wherein the first signaling is used for determining K Resource Elements, REs, K first-type complex numbers are respectively mapped onto the K REs, the K first-type complex numbers are used for generating a baseband signal of the first radio signal through a baseband signal generation for generating an SC-FDMA baseband signal, a modulation scheme employed by the first radio signal is π/2-BPSK; the UE characterized in that K first-type parameters respectively correspond to the K first-type complex numbers, the K first-type parameters are respectively complex numbers each of which is of modulus equal to 1; the K first-type parameters are related to a frequency-domain position of the K REs, each of the K first-type parameters is related to a length of a cyclic prefix of an RE onto which a corresponding first-type complex number is mapped; the first radio signal carries a first bit block, the K first-type parameters and the first bit block are used for generating the K first-type complex numbers, the K first-type parameters are unrelated to bits in the first bit block, the K REs are distributed on more than one subcarriers in frequency domain, and the K REs are distributed on more than one multicarrier symbols in time domain; any of the K first-type parameters is related to a time domain position of an RE out of the K REs onto which a corresponding first-type complex number is mapped; a time-domain position of one RE of the K REs among the K REs refers to an index of a multicarrier symbol occupied by the RE among multicarrier symbols occupied by the K REs; each of the K REs occupies a SC-FDMA subcarrier in frequency domain, and an SC-FDMA multicarrier symbol in time domain, an SC-FDMA multicarrier symbol comprising a cyclic prefix, CP. a first receiving module, receiving a first signaling; and a first transmitting module, transmitting a first radio signal; wherein the first signaling is used for determining K Resource Elements, REs, K first-type complex numbers are respectively mapped onto the K REs, the K first-type complex numbers are used for generating a baseband signal of the first radio signal through a baseband signal generation for generating an SC-FDMA baseband signal, a modulation scheme employed by the first radio signal is π/2-BPSK; the UE characterized in that K first-type parameters respectively correspond to the K first-type complex numbers, the K first-type parameters are respectively complex numbers each of which is of modulus equal to 1; the K first-type parameters are related to a frequency-domain position of the K REs, each of the K first-type parameters is related to a length of a cyclic prefix of an RE onto which a corresponding first-type complex number is mapped; the first radio signal carries a first bit block, the K first-type parameters and the first bit block are used for generating the K first-type complex numbers, the K first-type parameters are unrelated to bits in the first bit block, the K REs are distributed on more than one subcarriers in frequency domain, and the K REs are distributed on more than one multicarrier symbols in time domain; any of the K first-type parameters is related to a time domain position of an RE out of the K REs onto which a corresponding first-type complex number is mapped; a time-domain position of one RE of the K REs among the K REs refers to an index of a multicarrier symbol occupied by the RE among multicarrier symbols occupied by the K REs; each of the K REs occupies a SC-FDMA subcarrier in frequency domain, and an SC-FDMA multicarrier symbol in time domain, an SC-FDMA multicarrier symbol comprising a cyclic prefix, CP.