Method for transmitting and receiving uplink control information, terminal and base station

A method of a base station for receiving uplink control information, the method comprising:

• transmitting, to a terminal via radio resource control (RRC) signaling, configuration information on a length of a time window for statistically generating the uplink control information,
• wherein based on the configuration information on the length of the time window, a number of downlink transmissions received by the terminal within the time window is accumulated and wherein a plurality of downlink transmissions corresponding to a same transport block (TB) are counted as one downlink transmission, and
• wherein, in response to determining that the accumulated number of the downlink transmission reaches a threshold (Ntotal) decoding statistical information for the downlink transmission is generated,
• wherein the decoding statistical information is generated every time the accumulated number of the downlink transmissions reaches the Ntotal, and
• wherein the decoding statistical information for the downlink transmission includes at least one of:
• a decoding success ratio, a decoding failure ratio, cumulative times of decoding successes, or cumulative times of decoding failures of the downlink transmission within the time window;
• and
• based on that a downlink hybrid automatic repeat and request (HARQ) feedback function is disabled, receiving, from the terminal, the uplink control information including the decoding statistical information for the downlink transmission.

A terminal for transmitting uplink control information, the terminal comprising:

• at least one transceiver;
• and
• at least one processor operably coupled to the transceiver,
• at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor to cause the terminal to:
• receive, from a base station, via radio resource control (RRC) signaling, configuration information on a length of a time window for statistically generating the uplink control information;
• based on the configuration information on the length of the time window, accumulating a number of downlink transmissions received within the time window, wherein a plurality of downlink transmissions corresponding to a same transport block (TB) are counted as one downlink transmission;
• in response to determining that the accumulated number of downlink transmissions reaches a threshold (Ntotal) generate decoding statistical information for the downlink transmissions,
• wherein the decoding statistical information is generated every time the accumulated number of the downlink transmissions reaches the Ntotal, and
• wherein the decoding statistical information for the downlink transmission includes at least one of:
• a decoding success ratio, a decoding failure ratio, cumulative times of decoding successes, or cumulative times of decoding failures of the downlink transmission within the time window;
• and
• based on that a downlink hybrid automatic repeat and request (HARQ) feedback function is disabled, transmit, to the base station, the uplink control information including the decoding statistical information for the downlink transmissions.