Common reference signal design for OFDM and DFTS-OFDM

A terminal for a Radio Access Network, the terminal comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to transmit based on a first frequency division multiple access (FDMA) technology which is a multi-carrier FDMA technology, and wherein the radio circuitry and control circuitry are configured to transmit reference signaling having a comb structure for transmission based on the first FDMA technology, and wherein the radio circuitry and control circuitry are configured to transmit data inside the comb structure.

A terminal for a Radio Access Network, the terminal comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to transmit based on a first frequency division multiple access (FDMA) technology or based on a second FDMA technology or based on both the first and second FDMA technologies, the second FDMA technology differing from the first FDMA technology, and wherein the radio circuitry and control circuitry are configured to transmit reference signaling having a comb structure based on a combination of comb structures, when transmitting the reference signaling based on the first FDMA technology or the second FDMA technology or both the first and second FDMA technologies, wherein the radio circuitry and control circuitry are configured to transmit data inside the comb structure when transmitting the reference signaling based on the first FDMA technology.

A terminal for a Radio Access Network, the terminal comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to transmit based on a first frequency division multiple access (FDMA) technology or based on a second FDMA technology or based on both the first and second FDMA technologies, the second FDMA technology differing from the first FDMA technology, and wherein the radio circuitry and control circuitry are configured to transmit a reference signaling indication indicating the reference signaling structure used for transmission of signaling based on the first FDMA technology or the second FDMA technology or both the first and second FDMA technologies.

A network node for a Radio Access Network, the network node comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to receive signals on a first frequency division multiple access (FDMA) technology and to receive signals based on a second FDMA technology, the second FDMA technology differing from the first FDMA technology, and wherein the radio circuitry and control circuitry are configured to demodulate received signaling or decode received signaling or both demodulate and decode received signaling, based on a reference signaling structure being a comb structure for reception based on either of the first FDMA technology or the second FDMA technology.

A network node for a Radio Access Network, the network node comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to receive signals based on a first frequency division multiple access (FDMA) technology which is a multi-carrier FDMA technology, and wherein the radio circuitry and control circuitry are configured to demodulate received signaling or decode received signaling or both demodulate and decode received signaling, based on a reference signaling structure that is a comb structure, the reference signaling structure comprising data inside the comb structure for reception based on the first FDMA technology.

A network node for a Radio Access Network, the network node comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to receive signals based on a first frequency division multiple access (FDMA) technology or based on a second FDMA technology, and wherein the radio circuitry and control circuitry are configured to demodulate received signaling or decode received signaling or both demodulate and decode received signaling, based on a reference signaling structure being a comb structure based on a combination of comb structures for reception based on the first FDMA or the second FDMA technology or both the first and second FDMA technologies, the second FDMA technology differing from the first FDMA technology, wherein the radio circuitry and control circuitry are further configured to demodulate received signaling or decode received signaling or both demodulate and decode received signaling, based on a reference signaling structure comprising data inside the comb structure for reception based on the first FDMA technology.

A network node for a Radio Access Network, the network node comprising:

• radio circuitry;
• and
• control circuitry operatively coupled to the radio circuitry,
• wherein the radio circuitry and control circuitry are configured to receive signals based on a first frequency division multiple access (FDMA) technology and to receive signals based on a second FDMA technology, the second FDMA technology differing from the first FDMA technology, and wherein the radio circuitry and control circuitry are configured to demodulate received signaling or decode received signaling or both demodulate and decode received signaling, based on a received reference signaling indication indicating the reference signaling structure used for the received signaling.