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

A method for receiving Uplink Control Information, comprising:

• receiving the Uplink Control Information from a terminal;
• calculating Q′ of modulation symbols occupied by the Uplink Control Information;
• determining candidate control information bit sequences according to a number of bits of the Uplink Control Information;
• dividing each candidate control information bit sequence into two parts;
• using a Reed Muller RM (32, O) code to encode each part of each candidate control information bit sequence to obtain a 32-bit coded bit sequence, respectively,
• performing rate matching for each 32-bit coded bit sequence to set a first 32-bit coded bit sequence to ┌Q′/2┐×Qm bits coded bit sequence through rate matching and to set a second 32-bit coded bit sequence to (Q′−┌Q′/2┐)×Qm bits coded bit sequence through rate matching, wherein Qm is modulation order corresponding to the Uplink Control Information, and ┌ ┐ refers to rounding up;
• and
• detecting the Uplink Control Information by using the two parts of coded bit sequences which correspond to each candidate control information bit sequence and have undergone rate matching.

A terminal, comprising:

• a calculating module configured to calculate Q′ of modulation symbols occupied by Uplink Control Information (UCI) to be transmitted, and obtain a modulation order Qm corresponding to the UCI to be transmitted;
• a first dividing module configured to divide an information bit sequence of the UCI to be transmitted in the calculating module into two parts;
• a first encoding module configured to use a Reed Muller (RM) (32, O) code to encode each part of the information bit sequence of the UCI to be transmitted to obtain a 32-bit coded bit sequence respectively, and perform rate matching for each 32-bit coded bit sequence to set a first 32-bit coded bit sequence to ┌Q′/2┐×Qm bits coded bit sequence through rate matching and to set a second 32-bit coded bit sequence to (Q′−┌Q′/2┐)×Qm bits coded bit sequence through rate matching, wherein Qm is the modulation order corresponding to the UCI to be transmitted, and ┌ ┐ refers to rounding up;
• and
• a transmitting module, configured to map the two parts of coded bit sequences that have undergone rate matching onto a Physical Uplink Shared Channel (PUSCH), and transmit the two parts of the coded bit sequences to a base station.

A base station, comprising:

• a receiving module configured to receive Uplink Control Information sent by a terminal, calculate a number Q′ of modulation symbols occupied by the Uplink Control Information, and obtain modulation order Qm corresponding to the Uplink Control Information;
• a determining module configured to determine candidate control information bit sequences according to the number of bits of the Uplink Control Information received by the receiving module;
• a second dividing module, configured to divide each candidate control information bit sequence determined by the determining module into two parts;
• a second encoding module configured to use a Reed Muller (RM) (32, O) code to encode each part of each candidate control information bit sequence to obtain a 32-bit coded bit sequence respectively, and perform rate matching for each 32-bit coded bit sequence to set a first 32-bit coded bit sequence to ┌Q′/2┐×Qm bits coded bit sequence through rate matching and to set a second 32-bit coded bit sequence to (Q′−┌Q′/2┐)×Qm bits coded bit sequence through rate matching, wherein Qm is modulation order corresponding to the Uplink Control Information, and ┌ ┐ refers to rounding up;
• and
• a detecting module configured to detect the Uplink Control Information by using the two parts of coded bit sequences which correspond to each candidate control information bit sequence and have undergone rate matching.