Transmission of uplink control information via set of channel resources

A method comprising:

• performing channel encoding on a plurality of information bits to obtain a codeword that includes a plurality of code bits;
• segmenting the codeword into a plurality of segments of code bits, wherein each segment of code bits includes a subset of code bits of the codeword;
• communicating a signal for each of the plurality of segments of code bits of the codeword based on a set of channel resources selected for each segment of code bits;
• and for each of the plurality of segments of code bits of the codeword:
• selecting, based on the segment of code bits, a set of channel resources, wherein each set of channel resources is selected among a plurality of sets of channel resources, wherein each of the sets of channel resources includes a unique combination of channel resources including one or more of a selected base sequence, a cyclic shift and a selected set of frequency domain resource elements;
• mapping the selected base sequence onto the selected set of frequency domain resource elements;
• and
• transmitting the selected and frequency mapped base sequence via an orthogonal frequency division multiplexing symbol.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code;
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
• perform channel encoding on a plurality of information bits to obtain a codeword that includes a plurality of code bits;
• segment the codeword into a plurality of segments of code bits, wherein each segment of code bits includes a subset of code bits of the codeword;
• communicate a signal for each of the plurality of segments of code bits of the codeword based on a set of channel resources selected for each segment of code bits;
• and for each of the plurality of segments of code bits of the codeword:
• select, based on the segment of code bits, a set of channel resources, wherein each set of channel resources is selected among a plurality of sets of channel resources, wherein each of the sets of channel resources includes a unique combination of channel resources including one or more of a selected base sequence, a cyclic shift and a selected set of frequency domain resource elements;
• map the selected base sequence onto the selected set of frequency domain resource elements;
• and
• transmit the selected and frequency mapped base sequence via an orthogonal frequency division multiplexing symbol.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code;
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
• configure a plurality of sets of channel resources, wherein each of the sets of channel resources includes a unique combination of channel resources including one or more of a selected base sequence, a cyclic shift and a selected set of frequency domain resource elements;
• receive a plurality of signals via orthogonal frequency division multiplexing symbols, wherein each signal of the plurality of signals is associated with a unique combination of channel resources including one or more of a selected base sequence, a cyclic shift and a selected set of frequency domain resource elements;
• and for each received signal and for each of the sets of channel resources:
• correlate the received signal on the set of frequency domain resource elements with the base sequence of the set of channel resources;
• associate an output of the correlating with a block of code bit values that is associated with a set of the channel resources, wherein each block of code bit values forms a segment of a codeword among a set of codewords, wherein each codeword corresponds to a plurality of information bits via channel encoding;
• and
• detect a plurality of information bits based on outputs of the correlating, for the received plurality of signals.