On the frame structure design for single carrier waveform
An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.
1. A method comprising:
generating data samples associated with a sampling rate;
generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform; and
transmitting the waveform using front end circuitry,
wherein the waveform is a single carrier waveform, and
wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform, and
wherein the slot durations of the first slot and the second slot in the subframe of the waveform equal a subframe duration of the waveform divided by an integer that is based on the sampling rate.
2. The method of claim 1 , wherein the single carrier waveform comprises a single carrier-cyclic prefix-frequency domain equalizer (SC-CP-FDE) waveform or a single carrier-unique word-frequency domain equalizer (SC-UW-FDE) waveform.
3. The method of claim 1 , wherein the OFDM waveform comprises a cyclic prefix-OFDM (CP-OFDM) waveform or a Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) waveform.
4. The method of claim 3 , wherein a symbol boundary of the single carrier waveform is aligned with a symbol boundary of the CP-OFDM waveform or a symbol boundary of the DFT-s-OFDM waveform.
5. The method of claim 1 , wherein a symbol duration of the waveform multiplied by a first integer is a reference unit time duration that equals one of the slot duration of the reference waveform, the slot duration of the reference waveform multiplied by a second positive integer, 0.5 ms or 1 ms.
6. The method of claim 1 , wherein the data samples are generated using a Discrete Fourier Transform (DFT) with a DFT size defined as 2{circumflex over ( )}i·3{circumflex over ( )}j·5{circumflex over ( )}k, wherein i, j, k are non-negative integers.
7. The method of claim 1 , wherein the sampling rate is a fraction of a sampling rate of the reference waveform.
8. A user equipment (UE), comprising:
radio front end circuitry; and
processor circuitry coupled to the radio front end circuitry and configured to:
generate data samples associated with a sampling rate;
generate a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform; and
transmit the waveform using the radio front end circuitry,
wherein the waveform is a single carrier waveform,
wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform, and
wherein the slot durations of the first slot and the second slot in the subframe of the waveform equal a subframe duration of the waveform divided by an integer that is based on the sampling rate.
9. The UE of claim 8 , wherein the single carrier waveform comprises a single carrier-cyclic prefix-frequency domain equalizer (SC-CP-FDE) waveform or a single carrier-unique word-frequency domain equalizer (SC-UW-FDE) waveform.
10. The UE of claim 8 , wherein the OFDM waveform comprises a cyclic prefix-OFDM (CP-OFDM) waveform or a Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) waveform.
11. The UE of claim 10 , wherein a symbol boundary for the single carrier waveform is aligned with a symbol boundary for the CP-OFDM waveform or a symbol boundary of the DFT-s-OFDM waveform.
12. The UE of claim 8 , wherein a symbol duration of the waveform multiplied by a first integer is a reference unit time duration that equals one of the slot duration of the reference waveform, the slot duration of the reference waveform multiplied by a second positive integer, 0.5 ms or 1 ms.
13. The UE of claim 8 , wherein the data samples are generated using a Discrete Fourier Transform (DFT) with a DFT size defined as 2{circumflex over ( )}i·3{circumflex over ( )}j·5{circumflex over ( )}k, wherein i, j, k are non-negative integers.
14. The UE of claim 8 , wherein the sampling rate is a fraction of a sampling rate of the reference waveform.
15. A non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform a method, the method comprising:
generating data samples associated with a sampling rate;
generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform; and
transmitting the waveform using front end circuitry,
wherein the waveform is a single carrier waveform,
wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform, and
wherein the slot durations of the first slot and the second slot in the subframe of the waveform equal a subframe duration of the waveform divided by an integer that is based on the sampling rate.
16. The non-transitory computer-readable media of claim 15 , wherein the single carrier waveform comprises a single carrier-cyclic prefix-frequency domain equalizer (SC-CP-FDE) waveform or a single carrier-unique word-frequency domain equalizer (SC-UW-FDE) waveform.
17. The non-transitory computer-readable media of claim 15 , wherein the OFDM waveform comprises a cyclic prefix-OFDM (CP-OFDM) waveform or a Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) waveform.
18. The non-transitory computer-readable media of claim 15 , wherein a symbol duration of the waveform multiplied by a first integer is a reference unit time duration that equals one of the slot duration of the reference waveform, the slot duration of the reference waveform multiplied by a second positive integer, 0.5 ms or 1 ms.
19. The non-transitory computer-readable media of claim 15 , wherein data samples are generated using a Discrete Fourier Transform (DFT) with a DFT size defined as 2{circumflex over ( )}i·3{circumflex over ( )}j·5{circumflex over ( )}k, wherein i, j, k are non-negative integers.
20. The non-transitory computer-readable media of claim 15 , wherein the sampling rate is a fraction of a sampling rate of the reference waveform.