Method and device in UE and base station used for wireless communication

A method in a base station for wireless communication, comprising:

• transmitting a first signaling;
• and
• receiving a first radio signal;
• wherein the first signaling is used for determining K REs, K first-type complex numbers are respectively mapped onto the K REs, the K first-type complex numbers are used for generating the first radio signal, K first-type parameters respectively correspond to the K first-type complex numbers, the K first-type complex numbers 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 subcarrier in frequency domain, and the K REs are distributed on more than one multicarrier symbol in time domain.

A UE for wireless communications, comprising:

• a first receiver, receiving a first signaling;
• and
• a first transmitter, 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 the first radio signal, 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 subcarrier in frequency domain, and the K REs are distributed on more than one multicarrier symbol in time domain.

A base station for wireless communications, comprising:

• a second transmitter, transmitting a first signaling;
• and
• a second receiver, receiving 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 the first radio signal, K first-type parameters respectively correspond to the K first-type complex numbers, the K first-type parameters are respectively complex numbers of which each 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 subcarrier in frequency domain, and the K REs are distributed on more than one multicarrier symbol in time domain.