Radio frequency communication and jamming device and method for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication

Patent metadata

Field	Value
Publication number	US-11038619-B2
Application number	US-201916703345-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Jun 6, 2017
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device including: an antenna arrangement having a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals; a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section of the antenna arrangement in a receiving frequency band; a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the jamming signal is transmitted as one of the outgoing signals via the transmission section, wherein the at least one jamming frequency band includes the receiving frequency band; and a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in the incoming signals received via the receiving section at least in the receiving frequency band.

First claim

The invention claimed is:

1. A radio frequency communication and jamming device configured for physically securing friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device comprising:
an antenna arrangement comprising a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals;
a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section in a receiving frequency band;
a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the at least one jamming signal is transmitted as one of the outgoing signals via the transmission section, and wherein the at least one jamming frequency band comprises the receiving frequency band; and
a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in the incoming signals received via the receiving section at least in the receiving frequency band,
wherein the transmission section comprises a first radiation pattern control unit configured for adapting a radiation pattern for transmitting at least one outgoing information signal and/or a second radiation pattern control unit configured for adapting a radiation pattern for transmitting the at least one jamming signal.

2. The radio frequency communication and jamming device according to claim 1 , wherein the self-interference cancellation device comprises an inserting device for inserting a self-interference cancelation signal into the incoming signals downstream of the receiving section and a self-interference cancelation signal calculating device for calculating the self-interference cancelation signal from the at least one jamming signal.

3. The radio frequency communication and jamming device according to claim 1 , wherein the radio frequency communication and jamming device further comprises:
a transmitter device configured for generating the at least one outgoing information signal in a transmission frequency band,
wherein the at least one outgoing information signal is transmitted as one of the outgoing signals via the transmission section,
wherein the transmission frequency band and the receiving frequency band do not overlap, and
wherein the at least one jamming frequency band excludes the transmission frequency band.

4. The radio frequency communication and jamming device according to claim 3 , wherein the receiver device is configured for extracting the incoming information signal and a further incoming information signal from the incoming signals received via the receiving section, wherein the incoming information signal is in the receiving frequency band, wherein the further information incoming signal is in a further receiving frequency band, wherein the at least one jamming frequency band comprises the further receiving frequency band;
wherein the transmitter device is configured for generating the at least one outgoing information signal and a further outgoing information signal, wherein the further outgoing information signal is transmitted via the transmission section in a further transmission frequency band, which is not overlapping the frequency band of the at least one outgoing information signal; and
wherein the further transmission frequency band and the further receiving frequency band do not overlap.

5. The radio frequency communication and jamming device according to claim 3 , wherein the receiving section is configured for receiving the incoming information signal and a further incoming information signal of the incoming signals, which are in the same receiving frequency band;
wherein the receiving section comprises a direction estimation unit configured for estimating directions of origin for both of the incoming information signal and the further incoming information signal;
wherein the receiver device is configured for extracting the incoming information signal and the further incoming information signal from the incoming signals received via the receiving section using the estimated directions of origin; and
wherein the transmitter device is configured for generating the at least one outgoing information signal and a further outgoing information signal, wherein the further outgoing information signal is transmitted via the transmission section in the transmission frequency band.

6. The radio frequency communication and jamming device according to claim 1 , wherein the transmission section comprises a power control unit configured for adapting a power of the at least one jamming signal.

7. The radio frequency communication and jamming device according to claim 1 , wherein the jamming generator is configured for generating a plurality of jamming signals for jamming the at least one jamming frequency band, wherein the plurality of jamming signals comprise different characteristics,
wherein the transmission section comprises a plurality of transmission channels, wherein each jamming signal of the plurality of jamming signals is transmitted over one transmission channel of the plurality of transmission channels, and wherein the plurality of transmission channels comprise different radiation patterns for transmitting the respective jamming signal.

8. A radio frequency communication and jamming device configured for physically securing friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device comprising:
an antenna arrangement comprising a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals;
a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section in a receiving frequency band;
a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the at least one jamming signal is transmitted as one of the outgoing signals via the trans-mission section, and wherein the at least one jamming frequency band comprises the receiving frequency band; and
a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in the incoming signals received via the receiving section at least in the receiving frequency band,
wherein the receiving section comprises a direction estimation unit configured for estimating a direction from which the incoming information signal is arriving.

9. The radio frequency communication and jamming device according to claim 8 , wherein the direction estimation unit is configured for adapting a receiving pattern for receiving the incoming information signal based on the estimated direction.

10. A system for physically securing friendly radio frequency communication and for jamming hostile radio frequency communication, the system comprising:
a first radio frequency communication and jamming device and a second radio frequency communication and jamming device;
wherein each of the first and second radio frequency communication and jamming devices is configured for physically securing friendly radio frequency communication and for jamming hostile radio frequency communication, and comprises:
an antenna arrangement comprising a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals;
a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section in a receiving frequency band;
a jamming generato

Assignees

• Fraunhofer Ges Forschung

Inventors

• Askar Ramez
• Keusgen Wilhelm

Classifications

• H04W72/541

  using the level of interference · CPC title

• H04K2203/34

  involving multiple cooperating jammers · CPC title

• H04K3/28 Primary

  with jamming and anti-jamming mechanisms both included in a same device or system, e.g. wherein anti-jamming includes prevention of undesired self-jamming resulting from jamming · CPC title

• H04K2203/32

  including a particular configuration of antennas · CPC title

• H04K3/44

  characterized by the control of the jamming waveform or modulation type · CPC title