Block-ifdma multiplexing scheme with flexible payload

A method, comprising:

• determining whether a first type of uplink signal or a second type of uplink signal is to be processed for transmission on an interlace;
• determining whether to apply spreading based on intra-symbol spreading codes, inter-symbol spreading codes, or both intra-symbol spreading codes and inter-symbol spreading codes, based on the determination of whether the first type of uplink signal or the second type of uplink signal is to be processed for transmission;
• and
• causing transmission of the determined at least one of the first type of uplink signal and the second type of uplink signal according to the determination regarding applying spreading.

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including computer program code,
• wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to
• determine whether a first type of uplink signal or a second type of uplink signal is to be processed for transmission on an interlace;
• determine whether to apply spreading based on intra-symbol spreading codes, inter-symbol spreading codes, or both intra-symbol spreading codes and inter-symbol spreading codes, based on the determination of whether the first type of uplink signal or the second type of uplink signal is to be processed for transmission;
• and
• cause transmission of the determined at least one of the first type of uplink signal and the second type of uplink signal according to the determination regarding applying spreading.

A method, comprising:

• receiving an uplink signal on an interlace, the uplink signal comprising at least one of a first type of uplink signal and a second type of uplink signal;
• and
• processing the uplink signal based on whether spreading is applied to the uplink signal,
• wherein spreading is applied to the uplink signal depending on whether the first type of uplink signal or a second type of uplink signal is to be processed for transmission on the interlace,
• wherein the spreading is applied based on intra-symbol spreading codes, inter-symbol spreading codes, or both intra-symbol spreading codes and inter-symbol spreading codes, based on whether the first type of uplink signal or the second type of uplink signal is transmitted.

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including computer program code,
• wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to
• receive an uplink signal on an interlace, the uplink signal comprising at least one of a first type of uplink signal and a second type of uplink signal;
• and
• process the uplink signal based on whether spreading is applied to the uplink signal,
• wherein spreading is applied to the uplink signal depending on whether the first type of uplink signal or a second type of uplink signal is to be processed for transmission on the interlace,
• wherein the spreading is applied based on intra-symbol spreading codes, inter-symbol spreading codes, or both intra-symbol spreading codes and inter-symbol spreading codes, based on whether the first type of uplink signal or the second type of uplink signal is transmitted.