Time-based and frequency-based radio beamforming waveform transmission

Patent metadata

Field	Value
Publication number	US-10079633-B2
Application number	US-201514868509-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Sep 29, 2015
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

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 signal analysis component configured to analyze a first signal for transmission by a first antenna and a second signal for transmission by a second antenna, different from the first antenna, to produce a signal analysis result;
a selection component configured to select a pulse compression technique from among a time-shifted only duplex pulse compression technique, a frequency-shifted only duplex pulse compression technique, or a time-shifted and frequency shifted duplex compression technique; and
a non-transitory computer-readable medium configured to store a command set executable by a processor to facilitate operation of the analysis component, the selection component, or a combination thereof,
where the selection is based, at least in part, on the signal analysis result,
where the first antenna is configured to transmit the first signal subjected to the selected pulse compression technique,
where a second antenna is configured to transmit the second signal subjected to the selected pulse compression technique,
where the first antenna is configured to transmit the first signal and the second antenna is configured to transmit the second signal, at least in part, simultaneously,
where the first antenna is configured to transmit the first signal in a frequency band, and
where the second antenna is configured to transmit the second signal in the frequency band.

2. A method, comprising:
transmitting, by way of a first transmitter that is part of a plurality of transmitters, a first radio beamforming waveform; and
transmitting, by way of a second transmitter that is part of the plurality of transmitters, a second radio beamforming waveform;
receiving, by way of a first receiver that is part of a plurality of receivers, a response to the first radio beamforming waveform, which is transmitted by way of the first transmitter;
receiving, by way of a second receiver that is part of the plurality of receivers, a response to the second radio beamforming waveform, which is transmitted by way of the second transmitter;
processing the response to the first radio beamforming waveform by way of channelization of the first radio beamforming waveform through partitioning of the first radio beamforming waveform into a number of channels that is at least equal to a number of transmitters in the plurality of transmitters; and
processing the response to the second radio beamforming waveform by way of channelization of the second radio beamforming waveform through partitioning of the second radio beamforming waveform into a number of channels that is at least equal to a number of transmitters in the plurality of transmitters.

3. The system of claim 1 , comprising:
where the analysis comprises a comparison of the first signal against the second signal such that the signal analysis result comprises a result of the comparison,
where when the comparison indicates that the first signal and the second signal are the same signal, the selection component selects the time-shifted only duplex pulse compression technique, and
where when the comparison indicates that the first signal and the second signal are not the same signal, the selection component selects either the frequency-shifted only duplex pulse compression technique or the time-shifted and frequency shifted duplex compression technique.

4. The system of claim 3 , comprising:
a frequency analysis configured to analyze an available frequency band for the first signal and the second signal to produce a frequency band analysis result,
where the selection component bases the selection between either the frequency-shifted only duplex pulse compression technique or the time-shifted and frequency shifted duplex compression technique based, at least in part, on the frequency band analysis result.

5. The system of claim 1 ,
where the first signal and the second signal are the same signal,
where the first signal is a multi-pulse signal, and
where when the selection component selects the time-shifted only duplex pulse compression technique, the start of transmission of the second signal occurs after an end of transmission of the first signal.

6. The system of claim 1 ,
where the first antenna is configured to receive a response to the first signal,
where the second antenna is configured to receive a response to the second signal, and
where a set of antennas comprises the first antenna and the second antenna.

7. The system of claim 6 , comprising:
processing the response to the first signal by way of channelization of the first signal through a partition of the signal into a number of channels equal to at least the number of antennas in the plurality of antennas and
processing the response to the second signal by way of channelization of the second signal through partitioning of the second signal into a number of channels equal to at least the number of antennas in the plurality of antennas.

8. The system of claim 1 ,
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a number of sub-pulses.

9. The system of claim 8 ,
where the signal set is dependent, at least in part, on a duration of an individual of sub-pulses from the number of sub-pulses.

10. The system of claim 1 ,
where an antenna set comprises the first antenna and the second antenna
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a number of antennas in the antenna set.

11. The system of claim 1 ,
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a sub-carrier frequency step.

12. The system of claim 1 ,
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a pulse repetition interval.

13. The system of claim 1 ,
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a number of pulses.

14. The system of claim 1 ,
where a signal set comprises the first signal and the second signal and
where the signal set is dependent, at least in part, on a chirp rate.

15. The method of claim 2 ,
where a waveform set comprises the first radio beamforming waveform and the second radio beamforming waveform and
where the waveform set is dependent, at least in part, on a number of sub-pulses.

16. The method of claim 15 ,
where the waveform set is dependent, at least in part, on a duration of an individual of sub-pulses from the number of sub-pulses.

17. The method of claim 2 ,
where a waveform set comprises the first radio beamforming waveform and the second radio beamforming waveform and
where the waveform set is dependent, at least in part, on a sub-carrier frequency step.

18. The method of claim 2 ,
where a waveform set comprises the first radio beamforming waveform and the second radio beamforming waveform and
where the waveform set is dependent, at least in part, on a pulse repetition interval.

19. The method of claim 2 ,
where a waveform set comprises the first radio beamforming waveform and the second radio beamforming waveform and
where the waveform set is dependent, at least in part, on a number of pulses.

20. The method of claim 2 ,
where a waveform set comprises the first radio beamforming waveform and the second radio beamforming wavefo

Assignees

• Us Army

Inventors

• Elwell Ryan
• Govoni Mark

Classifications

• H04B7/0671 Primary

  using different delays between antennas · CPC title

• H04B7/068

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

• H04B7/0676

  using random or pseudo-random delays · CPC title

• H04B7/08

  at the receiving station · CPC title

• H04B7/0617 Primary

  for beam forming · CPC title