Frequency-based radio beamforming waveform transmission

Patent metadata

Field	Value
Publication number	US-10320467-B2
Application number	US-201514868506-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Sep 29, 2015
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

Various embodiments are described that relate to radio beamforming waveform transmission. Transmission can occur, for example, in three manners. The first manner is time-based where waveform transmission is staggered at the same frequency. The second manner is frequency-based where different frequencies are used at one time. This third manner is a combination of time and frequency such that simultaneous transmission occurs, but at different times different frequencies are used.

First claim

What is claimed is:

1. A system, comprising:
a first transmitter configured to transmit a first radio beamforming waveform within a first frequency band over a period and with a frequency varying within the first frequency band over at least part of the period; and
a second transmitter configured to transmit a second radio beamforming waveform within a second frequency band over the period with a frequency varying within the second frequency band over at least part of the period,
where the first frequency band and the second frequency band are separate and distinct and
where the first transmitter is configured to transmit the first radio beamforming waveform and the second transmitter is configured to transmit the second radio beamforming waveform, at least in part, concurrently.

2. The system of claim 1 ,
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a number of pulses.

3. The system of claim 1 ,
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a pulse repetition interval.

4. The system of claim 1 ,
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a frequency shift.

5. The system of claim 1 ,
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a frequency offset.

6. A non-transitory computer-readable medium configured to store processor-executable instructions that, when executed by a processor, cause the processor to perform a method, the method comprising:
causing a first transmitter to transmit a first radio beamforming waveform within a first frequency band over a period and with a frequency value of the first radio beamforming waveform varying within the first frequency band over at least part of the period; and
causing a second transmitter, at least in part concurrently with the first transmitter transmitting, to transmit a second radio beamforming waveform within a second frequency band over the period and with a frequency value of the second radio beamforming waveform varying within the second frequency band over at least part of the period,
where the first frequency band and second frequency band are separate and distinct.

7. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a number of pulses.

8. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a pulse repetition interval.

9. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a frequency shift.

10. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a frequency offset.

11. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first transmitter and the second transmitter are part of a transmitter set,
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a number of transmitters in the transmitter set.

12. The non-transitory computer-readable medium of claim 6 , the method further comprising:
where the first radio beamforming waveform and the second radio beamforming waveform are a radio beamforming waveform set and
where the radio beamforming waveform set is dependent on a chirp rate.

13. A method performed, at least in part, by a multiple input-multiple output signal system, the method comprising:
transmitting a first signal within a first frequency band over a period and with a frequency value varying within the first frequency band over at least part of the period;
transmitting a second signal within a second frequency band over the period, with a frequency value varying within the second frequency band over at least part of the period, and concurrently with transmitting the first signal within the first frequency band; where the first frequency band and second frequency band are separate and distinct;
where the first signal and the second signal are a signal set and
where the signal set is dependent on a frequency shift.

14. The method of claim 13 , where the signal set is dependent on a number of pulses.

15. The method of claim 14 , where the signal set is dependent on a pulse repetition interval.

16. The method of claim 15 , where the signal set is dependent on a frequency offset.

17. The method of claim 16 , where the signal set is dependent on a number of transmitters in the plurality of transmitters.

18. The method of claim 13 , comprising:
receiving a response to the transmission of the first signal; and
receiving a response to the transmission of the second signal.

Assignees

• Us Army

Inventors

• Elwell Ryan
• Govoni Mark

Classifications

• H04B7/068

  using space frequency diversity (space-frequency coding H04L1/0606) · CPC title

• H04B7/0617

  for beam forming · CPC title

• H04B7/12 Primary

  Frequency diversity · CPC title