IP Library Granted Patent US 8,244,175
Granted Patent B2
US 8,244,175 · App. 11/864,735 · Granted Aug 14, 2012

Method and system for signal repeater with gain control and spatial isolation

Assignee: Broadcom Corporation
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Quick Facts
Patent No.
US 8,244,175
App. No.
11/864,735
Granted
Aug 14, 2012
Kind
B2
Abstract

A repeater device may be utilized to enable forwarding extreme high frequency (EHF) communication between EHF-enabled wireless devices. The repeater device may utilize spatial isolation to prevent and/or reduce interference between received and transmitted EHF RF signals, wherein reception and/or transmission of EHF RF signals in the repeater device may be performed via narrow beams that may enable minimal interference by transmit EHF RF signals to reception of EHF RF. The repeater device may utilize phased arrays to enable performing beamforming, and signal processing operations, including shift and/or amplitude adjustment, may be performed on signals received and/or transmitted via antenna elements in the phased arrays to enable beamforming during reception and transmission of EHF RF signals. Signal processing operations performed in the repeater device may be modifiable to enable continued spatial isolation between receive and transmit EHF RF signal in the repeater device.

Claims (55)

1. A method for wireless communication, the method comprising:

mitigating, via spatial isolation, signal interference between receive (Rx) and transmit (Tx) signals in a repeater device, wherein said mitigating comprises utilizing beamforming during said reception and/or transmission of extremely high frequency (EHF) signals in said repeater device; and

forwarding, via said repeater device, EHF signals to extend a range of EHF signals communicated between a plurality of wireless devices, said forwarding comprises:

receiving an EHF signal via a plurality of receive antenna elements, wherein said receiving comprising:

amplifying each of a plurality of signals received via said plurality of receive antenna elements;

phase shifting each of said plurality of amplified signals; and

combining said plurality of amplified and phase shifted signals to generate a combined signal corresponding to said EHF signal; and

transmitting said combined signal via a plurality of transmit antenna elements, wherein said transmitting comprises:

generating a plurality of transmit signals corresponding to said plurality of transmit antenna elements, and each of said plurality of transmit signals is generated by:

phase shifting said combined signal; and

amplifying said phase shifted signal.

2. The method according to claim 1 , wherein said extremely high frequency (EHF) signals comprise 60 GHz signals.

3. The method according to claim 1 , comprising configuring one or more receive (Rx) phased arrays comprising said plurality of receive antenna elements, and/or one or more transmit (Tx) phased arrays comprising said plurality of transmit antenna elements to perform said beamforming in said repeater device.

4. The method according to claim 1 , comprising utilizing Low-Noise Amplifiers (LNAs) and Phase Shifter (PAs) during said receiving of said EHF signal via said plurality of receive antenna elements and/or said transmitting of said combined signal via said plurality of transmit antenna elements.

5. The method according to claim 4 , wherein said Low-Noise Amplifiers (LNAs) and/or Phase Shifter (PAs) are programmable.

6. The method according to claim 1 , comprising coordinating said spatial isolation in said repeater device utilizing one or more control connections between said repeater device, and a source wireless device and/or target wireless device to enable spatial isolation in said repeater device.

7. The method according to claim 6 , wherein said one or more control connections comprise non-extremely high frequency (non-EHF) connections.

8. The method according to claim 7 , wherein said non-EHF connections comprise Bluetooth (BT) connections and/or ultra-wideband (UWB) connections.

9. The method according to claim 6 , wherein said coordinating comprises enabling said repeater device to negotiate, via said one or more control connections, with said source wireless device and/or said target wireless device to set a phase and/or an amplitude of said receive (Rx) and/or transmit (Tx) signals to enable said spatial isolation in said repeater device.

10. A machine-readable storage having stored thereon, a computer program having at least one code section for wireless communication, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

mitigating, via spatial isolation, signal interference between receive (Rx) and transmit (Tx) signals in a repeater device, wherein said mitigating comprises utilizing beamforming during said reception and/or transmission of extremely high frequency (EHF) signals in said repeater device; and

forwarding, via said repeater device, EHF signals to extend a range of EHF signals communicated between a plurality of wireless devices, said forwarding comprises:

receiving an EHF signal via a plurality of receive antenna elements, wherein said receiving comprising:

amplifying each of a plurality of signals received via said plurality of receive antenna elements;

phase shifting each of said plurality of amplified signals; and

combining said plurality of amplified and phase shifted signals to generate a combined signal corresponding to said EHF signal; and

transmitting said combined signal via a plurality of transmit antenna elements, wherein said transmitting comprises:

generating a plurality of transmit signals corresponding to said plurality of transmit antenna elements, and each of said plurality of transmit signals is generated by:

phase shifting said combined signal; and

amplifying said phase shifted signal.

11. The machine-readable storage according to claim 10 , wherein said extremely high frequency (EHF) signals comprise 60 GHz signals.

12. The machine-readable storage according to claim 10 , wherein said at least one code section comprises code for configuring one or more receive (Rx) phased arrays comprising said plurality of receive antenna elements, and/or one or more transmit (Tx) phased arrays comprising said plurality of transmit antenna elements to perform said beamforming in said repeater device.

13. The machine-readable storage according to claim 12 , wherein said at least one code section comprises code for utilizing Low-Noise Amplifiers (LNAs) and Phase Shifter (PAs) during said receiving of said EHF signal via said plurality of receive antenna elements and/or said transmitting of said combined signal via said plurality of transmit antenna elements.

14. The machine-readable storage according to claim 13 , wherein said Low-Noise Amplifiers (LNAs) and/or Phase Shifter (PAs) are programmable.

15. The machine-readable storage according to claim 10 , wherein said at least one code section comprises code for coordinating said spatial isolation in said repeater device utilizing one or more control connections between said repeater device, and a source wireless device and/or target wireless device to enable spatial isolation in said repeater device.

16. The machine-readable storage according to claim 15 , wherein said code for coordinating said spatial isolation comprises code for enabling said repeater device to negotiate, via said one or more control connections, with said source wireless device and/or said target wireless device to set a phase and/or an amplitude of said receive (Rx) and/or transmit (Tx) signals to enable said spatial isolation in said repeater device.

17. A system for wireless communication, the system comprising:

one or more circuits for use in a repeater device, said one or more circuit being operable to mitigate, via spatial isolation, signal interference between receive (Rx) and transmit (Tx) signals in said repeater device, wherein said mitigation comprises utilizing beamforming during said reception and/or transmission of extremely high frequency (EHF) signals in said repeater device; and

said one or more circuits are operable to forward via said repeater device, EHF signals to extend a range of EHF signals communicated between a plurality of wireless devices, said forwarding comprises:

receiving an EHF signal via a plurality of receive antenna elements;

wherein said receiving comprising:

amplifying each of a plurality of signals received via said plurality of receive antenna elements via a corresponding receive Low-Noise Amplifier (LNA);

phase shifting each of said plurality of amplified signals via a corresponding receive Phase Shifter (PA); and

combining said plurality of amplified and phase shifted signals via a signal combiner to generate a combined signal corresponding to said EHF signal; and

transmitting said combined signal via a plurality of transmit antenna elements; wherein said transmitting comprises:

generating a plurality of transmit signals corresponding to said plurality of transmit antenna elements, and each of said plurality of transmit signals is generated by:

phase shifting said combined signal signals via a corresponding transmit Phase Shifter (PA) associated with one of said plurality of transmit antenna elements; and

amplifying said phase shifted signal via a corresponding transmit Low-Noise Amplifier (LNA).

18. The system according to claim 17 , wherein said extremely high frequency signals comprises 60 GHz signals.

19. The system according to claim 17 , wherein said one or more circuits enable configuration of one or more receive (Rx) phased arrays comprising said plurality of receive antenna elements, and/or one or more transmit (Tx) phased arrays comprising said plurality of transmit antenna elements to perform said beamforming in said repeater device.

20. The system according to claim 17 , wherein said receive and transmit Low-Noise Amplifiers (LNAs) and/or said receive and transmit Phase Shifter (PAs) are programmable.

21. The system according to claim 17 , wherein said one or more circuits enable coordination of said isolation in said repeater device utilizing one or more control connections between said repeater device, and a source wireless device and/or target wireless device to enable spatial isolation in said repeater device.

22. The system according to claim 21 , wherein said one or more control connections comprise non-extremely high frequency (non-EHF) connections.

23. The system according to claim 22 , wherein said non-EHF connections comprise Bluetooth (BT) connections and/or ultra-wideband (UWB) connections.

24. The system according to claim 21 , wherein said one or more circuits that enable said coordination of said isolation enables said repeater device to negotiate, via said one or more control connections, with said source wireless device and/or said target wireless device to set a phase and/or an amplitude of said receive (Rx) and/or transmit (Tx) signals to enable said spatial isolation in said repeater device.

Assignments (4)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 041712/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2017
From: BROADCOM CORPORATION
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 041706/0001 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: BROADCOM CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037806/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2007
From: ROFOUGARAN, AHMADREZA
To: BROADCOM CORPORATION
Reel/Frame 020062/0240 →
Continuity (1)
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