Duty cycle orthogonal frequency division multiplexing modem for sixth generation ultra-wideband

Patent metadata

Field	Value
Publication number	US-12568013-B2
Application number	US-202418622506-A
Country	US
Kind code	B2
Filing date	Mar 29, 2024
Priority date	Mar 29, 2024
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a duty cycle for transmitting one or more orthogonal frequency division multiplexing (OFDM) symbols via an ultra-wideband (UWB). The UE may transmit the one or more OFDM symbols via the UWB based at least in part on the duty cycle. Numerous other aspects are described.

First claim

What is claimed is:

1 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and one or more processors, coupled to the one or more memories, configured to cause the UE to:
determine a duty cycle for transmitting one or more orthogonal frequency division multiplexing (OFDM) symbols via an ultra-wideband (UWB) communication;
insert one or more zero samples between portions of the UWB communication; and
transmit the one or more OFDM symbols via the UWB based at least in part on the duty cycle.

2 . The UE of claim 1 ,
wherein the one or more OFDM symbols comprises a plurality of OFDM symbols, wherein the duty cycle comprises an inter-symbol duty cycle, and wherein the inter-symbol duty cycle comprises the one or more zero samples between successive OFDM symbols of the plurality of OFDM symbols.

3 . The UE of claim 1 ,
wherein the duty cycle comprises an intra-symbol duty cycle, and wherein the intra-symbol duty cycle comprises the one or more zero samples between successive portions of an OFDM symbol.

4 . The UE of claim 1 ,
wherein the one or more processors are further configured to cause the UE to:
construct the one or more OFDM symbols; and
insert the one or more zero samples between the one or more OFDM symbols according to the duty cycle.

5 . The UE of claim 1 ,
wherein the duty cycle comprises a duty cycle of 1, a duty cycle of ½, or a duty cycle of ⅓.

6 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and one or more processors, coupled to the one or more memories, configured to cause the UE to:
receive a signal that is transmitted via an ultra-wideband (UWB) based at least in part on a duty cycle;
divide the signal into a plurality of fast Fourier transform (FFT) windows based at least in part on the duty cycle;
perform FFT for each FFT window of the plurality of FFT windows; and
demodulate the signal based at least in part on performing FFT for each FFT window of the plurality of FFT windows.

7 . The UE of claim 6 ,
wherein the signal comprises a plurality of OFDM symbols, wherein the duty cycle comprises an inter-symbol duty cycle, and wherein the inter-symbol duty cycle comprises one or more zero samples between successive OFDM symbols.

8 . The UE of claim 6 ,
wherein the signal comprises one or more OFDM symbols, wherein the duty cycle comprises an intra-symbol duty cycle, and wherein the intra-symbol duty cycle comprises one or more zero samples between successive portions of an OFDM symbol.

9 . The UE of claim 6 ,
wherein the one or more processors, to cause the UE to receive the signal that is transmitted via the UWB based at least in part on the duty cycle, are configured to cause the UE to:
receive a plurality of virtual streams corresponding to the signal; or
receive the signal at a plurality of virtual antennas.

10 . The UE of claim 9 ,
wherein a quantity of virtual streams included in the plurality of virtual streams is equal to a quantity of receiver antennas divided by a value representing the duty cycle.

11 . A method of wireless communication performed by a user equipment (UE), comprising:
determining a duty cycle for transmitting one or more orthogonal frequency division multiplexing (OFDM) symbols via an ultra-wideband (UWB) communication; inserting one or more zero samples between portions of the UWB communication; and transmitting the one or more OFDM symbols via the UWB based at least in part on the duty cycle.

12 . The method of claim 11 ,
wherein the one or more OFDM symbols comprises a plurality of OFDM symbols, wherein the duty cycle comprises an inter-symbol duty cycle, and wherein the inter-symbol duty cycle comprises the one or more zero samples between successive OFDM symbols of the plurality of OFDM symbols.

13 . The method of claim 11 ,
wherein the duty cycle comprises an intra-symbol duty cycle, and wherein the intra-symbol duty cycle comprises the one or more zero samples between successive portions of an OFDM symbol.

14 . The method of claim 11 , further comprising:
constructing the one or more OFDM symbols; and inserting the one or more zeros samples between the one or more OFDM symbols according to the duty cycle.

15 . The method of claim 11 ,
wherein the duty cycle comprises a duty cycle of 1, a duty cycle of ½, or a duty cycle of ⅓.

16 . The method of claim 11 , further comprising:
receiving a signal that is transmitted via the UWB based at least in part on the duty cycle; dividing the signal into a plurality of fast Fourier transform (FFT) windows based at least in part on the duty cycle; performing FFT for each FFT window of the plurality of FFT windows; and demodulating the signal based at least in part on performing FFT for each FFT window of the plurality of FFT windows.

17 . The method of claim 16 ,
wherein the signal comprises a plurality of OFDM symbols, wherein the duty cycle comprises an inter-symbol duty cycle, and wherein the inter-symbol duty cycle comprises the one or more zero samples between successive OFDM symbols.

18 . The method of claim 16 ,
wherein the signal comprises one or more OFDM symbols, wherein the duty cycle comprises an intra-symbol duty cycle, and wherein the intra-symbol duty cycle comprises the one or more zero samples between successive portions of an OFDM symbol.

19 . The method of claim 16 ,
wherein receiving the signal that is transmitted via the UWB based at least in part on the duty cycle comprises one or more of:
receiving a plurality of virtual streams corresponding to the signal; or
receiving the signal at a plurality of virtual antennas.

20 . The method of claim 19 ,
wherein a quantity of virtual streams included in the plurality of virtual streams is equal to a quantity of receiver antennas divided by a value representing the duty cycle.

Assignees

• Qualcomm Inc

Inventors

• Sverdlov Alexander
• Levitsky Michael
• Touboul Assaf
• Paz Daniel
• Barak Tom

Classifications

• H04B1/71637 Primary

  Receiver aspects (H04B1/7183 takes precedence) · CPC title

• H04L27/2626

  Arrangements specific to the transmitter only · CPC title

• H04L27/26524 Primary

  Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation · CPC title