Method and device in ue and base station used for dynamic scheduling

A User Equipment (UE) for wireless communication, comprising:

• hardware including a processing system and one or more antennas, the hardware being configured to perform operations comprising:
• receiving first information;
• and
• monitoring a first signaling in M RE sets, the first signaling is DCI (Downlink Control Information), the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel);
• wherein:
• the first information is used by the UE for determining the M RE sets, the monitoring of the first signaling assumes that P modulation symbol groups are one-to-one mapped to PRE sets, the PRE sets are PRE sets out of the M RE sets, and one blind detection for the first signaling is performed on the PRE sets;
• bits in a first bit sequence of the first signaling have been modulated by the base station device to obtain modulation symbols that constitute a first modulation symbol set sequentially, wherein the bits in the first bit sequence are sequentially arranged according to an output of a channel encoder, each modulation symbol in the first modulation symbol set is modulated based on Quadrature Phase Shift Keying (QPSK), the channel encoder is based on polar coding;
• the first modulation symbol set is divided into the P modulation symbol groups successively from the front to the rear, and each modulation symbol group of the P modulation symbol groups consists of X modulation symbols;
• and
• relative positions of the PRE sets in frequency domain are related to at least one of {M, X}, wherein M is a positive integer, P is a positive integer not greater than M, and X is a positive integer;
• X is related to the number of multicarrier symbols occupied by the M RE sets in time domain, the M RE sets occupy one of {1,2,3} multicarrier symbols in time domain, the M RE sets are discrete in frequency domain.

A base station device for wireless communication, comprising:

• transmitting first information;
• and
• transmitting a first signaling in M RE sets, the first signaling is DCI (Downlink Control Information), the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel);
• wherein:
• the first information is used by the UE for determining the M RE sets, a monitoring of the first signaling by the UE assumes that P modulation symbol groups are one-to-one mapped to PRE sets, the P RE sets are PRE sets out of the M RE sets, and one blind detection for the first signaling is performed on the PRE sets;
• bits in a first bit sequence of the first signaling are modulated by the base station device to obtain modulation symbols that constitute a first modulation symbol set sequentially, wherein the bits in the first bit sequence are sequentially arranged according to an output of a channel encoder, each modulation symbol in the first modulation symbol set is modulated based on Quadrature Phase Shift Keying (QPSK), the channel encoder is based on polar coding;
• the first modulation symbol set is divided into the P modulation symbol groups successively from the front to the rear, and each modulation symbol group of the P modulation symbol groups consists of X modulation symbols;
• and
• relative positions of the PRE sets in frequency domain are related to at least one of {M, X}, wherein M is a positive integer, P is a positive integer not greater than M, and X is a positive integer;
• X is related to the number of multicarrier symbols occupied by the M RE sets in time domain, the M RE sets occupy one of {1,2,3} multicarrier symbols in time domain, the M RE sets are discrete in frequency domain.