Communication device and method for wireless signal transmission

Patent metadata

Field	Value
Publication number	US-10291383-B2
Application number	US-201514686949-A
Country	US
Kind code	B2
Filing date	Apr 15, 2015
Priority date	Apr 15, 2015
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

The invention is related to a communication device and a method for wireless signal transmission. An interference reduction means is arranged in between a transmitting path and a receiving path. The interference reduction mean is a wideband interference reduction means which converts a signal from said transmitting path into an anti-phased signal to provide the anti-phased signal to said receiving path.

First claim

What I claim is:

1. A communication device for wireless signal transmission,
wherein an interference reduction means is arranged in-between a transmitting path and a receiving path,
wherein a first node of the interference reduction means is configured to, at least one of:
be directly connected to both the transmitting path and a transmitting antenna, or
provide the same signal from the transmitting path to the transmitting antenna,

wherein a second node of the interference reduction means is configured to, at least one of:
be directly connected to both the receiving path and a receiving antenna, or
provide the same signal from the receiving antenna to the receiving path,

wherein the interference reduction means is a wideband interference reduction means, capable of working bidirectionally, which converts a signal from the transmitting path into an anti-phased signal to provide the anti-phased signal to the receiving path,
wherein the communication device comprises a plurality of transceivers in a housing of the communication device,
wherein the transmitting path is a transmitting path of a first transceiver of the plurality of transceivers and the receiving path is a receiving path of a second transceiver of the plurality of transceivers, and
wherein the transmitting path is also a transmitting path of the second transceiver and the receiving path is also a receiving path of the first transceiver.

2. The communication device according to claim 1 , wherein the transmitting path and the receiving path are coupled to a common antenna for a wireless signal transmission to external devices, the common antenna functioning as the transmitting antenna and the receiving antenna.

3. The communication device according to claim 1 , wherein an antenna of the first transceiver is arranged in spatial proximity to a corresponding antenna of the second transceiver.

4. The communication device according to claim 1 , wherein the interference reduction means comprises an attenuation module.

5. The communication device according to claim 1 , wherein a propagation delay of the interference reduction means is equal to a propagation delay between the transmitting path and the receiving path.

6. The communication device according to claim 1 , wherein the interference reduction means comprises a transformer, wherein a winding direction of a first winding is opposite to a winding direction of a second winding.

7. The communication device according to claim 1 , wherein the interference reduction means comprises at least an inverting amplifier means.

8. The communication device according to claim 1 , wherein the interference reduction means comprises a micro strip arrangement.

9. The communication device according to claim 8 , wherein the micro strip arrangement comprises resistance elements.

10. The communication device according to claim 8 , wherein the micro strip arrangement comprises a defected ground structure.

11. The communication device according to claim 8 , wherein the micro strip arrangement comprises one of a Z-structure or a double-Z-structure.

12. The communication device according to claim 1 , wherein the interference reduction means comprises a frequency adjusting means.

13. The communication device according to claim 1 , wherein a combining element is used to combine the transmitting path and the receiving path.

14. A method for wireless signal transmission with a communication device, the method comprises the steps of:
providing a signal to a transmitting path of the communication device;
converting the signal into an anti-phased signal by an interference reduction means, wherein the interference reduction means is a wideband interference reduction means capable of working bidirectionally, and wherein a first node of the interference reduction means is configured to, at least one of:
be directly connected to both the transmitting path and a transmitting antenna, or
provide the same signal from the transmitting path to the transmitting antenna; and

providing the anti-phased signal to a receiving path of the communication device, wherein a second node of the interference reduction means is configured to, at least one of:
be directly connected to the receiving path and a receiving antenna, or
provide the same signal from the receiving antenna to the receiving path,

wherein the signal is provided by a first transceiver of the communication device,
wherein the transmitting path is part of the first transceiver, and
wherein the receiving path is part of a second transceiver arranged in the communication device.

15. The method according to claim 14 , wherein the communication device is a communication device for wireless signal transmission, wherein:
the interference reduction means is arranged in-between the transmitting path and the receiving path; and
the interference reduction means converts the signal from the transmitting path into the anti-phased signal to provide the anti-phased signal to the receiving path.

16. The method according to claim 14 , further comprising combining the transmitting path and the receiving path.

17. A communication device for wireless signal transmission comprising
a plurality of transceivers located within a housing of the communication device, transmitters of the plurality of transceivers share a transmitting path, receivers of the plurality of transceivers share a receiving path;
an interference reduction means coupled to the transmitting path and the receiving path, the interference reduction means being a wideband interference reduction means capable of working bidirectionally and configured to passively convert a signal from the transmitting path into an anti-phased signal applied to the receiving path,
wherein a first node of the interference reduction means is configured to, at least one of:
be directly connected to both the transmitting path and a transmitting antenna, or
provide the same signal from the transmitting path to the transmitting antenna, and

wherein a second node of the interference reduction means is configured to, at least one of:
be directly connected to both the receiving path and a receiving antenna, or
provide the same signal from the receiving antenna to the receiving path.

18. The communication device according to claim 17 , wherein the anti-phased signal is a static signal.

Assignees

• Rohde & Schwarz

Inventors

• Liebl Detlev

Classifications

• H04B1/48

  in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter {(H04B1/46 takes precedence)} · CPC title

• H04L27/0014

  Carrier regulation (of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657) · CPC title

• H04B1/0458

  Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages (matching circuits in general H03H) · CPC title

• H04L5/1461 Primary

  Suppression of signals in the return path, i.e. bidirectional control circuits · CPC title