IP Library Granted Patent US 8,064,533
Granted Patent B2
US 8,064,533 · App. 12/210,678 · Granted Nov 22, 2011

Reconfigurable MIMO transceiver and method for use therewith

Assignee: Broadcom Corporation
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Quick Facts
Patent No.
US 8,064,533
App. No.
12/210,678
Granted
Nov 22, 2011
Kind
B2
Abstract

A wireless transceiver includes a plurality of antennas. A plurality of signal recovery circuits generate a selected number of received signals from a first subset of the plurality of antennas, based on a control signal. A receiver section recovers an inbound data stream from the selected number of received signals. A plurality of transmitter sections generate a selected number of transmitted signals to a second subset of the plurality of antennas, based on the control signal, wherein the intersection between the first subset of the plurality of antennas and the second subset of the plurality of antennas is the null set for each value of the control signal.

Claims (37)

1. A wireless transceiver comprising:

a plurality of antennas;

a plurality of signal recovery circuits, coupled to the plurality of antennas, that generate a selected number of received signals from a first subset of the plurality of antennas, based on a control signal;

a receiver section, coupled to the plurality of signal recovery modules, that recovers an inbound data stream from the selected number of received signals; and

a plurality of transmitter sections, coupled to the plurality of antennas, that generate a selected number of transmitted signals to a second subset of the plurality of antennas, based on the control signal;

wherein the intersection between the first subset of the plurality of antennas and the second subset of the plurality of antennas is a null set for each value of the control signal and wherein the second subset of the plurality of antennas produce a combined RF signal that is intermodulated based on a first RF signal produced by a first antenna of the second subset of the plurality of antennas and a second RF signal produced by a second antenna of the second subset of the plurality of antennas.

2. The wireless transceiver of claim 1 further comprising:

a plurality of transmission lines for coupling the plurality of antennas to the plurality of signal recovery circuits and the plurality of transmitter sections.

3. The wireless transceiver of claim 1 further comprising:

a processing module, coupled to the plurality of signal recovery circuits and the plurality of transmitter sections, that generates the control signal.

4. The wireless transceiver of claim 3 wherein the receiver section further generates a combined signal based on the selected number of received signals and the wireless transceiver section further comprises:

a clock recovery circuit, coupled to the receiver section, that generates a recovered clock signal based on the combined signal, and wherein the processing module is clocked based on the recovered clock signal.

5. The wireless transceiver of claim 1 wherein the second subset of the plurality of antennas produce a combined RF signal with controllable power based on a selection of the second subset of the plurality of antennas.

6. The wireless transceiver of claim 1 wherein the second subset of the plurality of antennas produce a combined RF signal that is polar modulated based on a first RF signal produced by a first antenna of the second subset of the plurality of antennas and a second RF signal produced by a second antenna of the second subset of the plurality of antennas.

7. The wireless transceiver of claim 1 wherein the plurality of signal recovery circuits includes a plurality of rectifiers that generate a selected number of power supply signals, the wireless transceiver further comprising:

a power recovery circuit, coupled to the plurality of rectifiers, that generates a recovered power signal based on the selected number of power supply signals.

8. The wireless transceiver of claim 7 wherein the selected number of power supply signals includes a plurality of power supply signals and wherein the power recover circuit generates the recovered power signal based on a combination of the plurality of power supply signals.

9. The wireless transceiver of claim 1 wherein the selected number of received signals includes a plurality of received signals and wherein the receiver section generates the inbound data stream based on a combination of the plurality of received signals.

10. A method comprising:

generating a selected number of received signals from a first subset of a plurality of antennas, based on a control signal;

recovering an inbound data stream from the selected number of received signals;

generating a selected number of transmitted signals to a second subset of the plurality of antennas, based on the control signal;

generating a selected number of power supply signals; and

generating a recovered power signal based on the selected number of power supply signals;

wherein the intersection between the first subset of the plurality of antennas and the second subset of the plurality of antennas is a null set for each value of the control signal.

11. The method of claim 10 further comprising:

coupling the plurality of antennas to a plurality of signal recovery circuits and a plurality of transmitter sections via a plurality of transmission lines.

12. The method of claim 10 further comprising:

generating the control signal.

13. The method of claim 10 further comprising:

generating a combined signal based on the selected number of received signals; and

generating a recovered clock signal based on the combined signal.

14. The method of claim 10 wherein the second subset of the plurality of antennas produce a combined RF signal with controllable power based on a selection of the second subset of the plurality of antennas.

15. The method of claim 10 wherein the second subset of the plurality of antennas produce a combined RF signal that is intermodulated based on a first RF signal produced by a first antenna of the second subset of the plurality of antennas and a second RF signal produced by a second antenna of the second subset of the plurality of antennas.

16. The method of claim 10 wherein the second subset of the plurality of antennas produce a combined RF signal that is polar modulated based on a first RF signal produced by a first antenna of the second subset of the plurality of antennas and a second RF signal produced by a second antenna of the second subset of the plurality of antennas.

17. The method of claim 10 wherein the selected number of power supply signals includes a plurality of power supply signals and wherein generating the recovered power signal is based on a combination of the plurality of power supply signals.

18. The method of claim 10 wherein the selected number of received signals includes a plurality of received signals and wherein generating the inbound data stream is based on a combination of the plurality of received signals.

Assignments (7)
MERGER AND CHANGE OF NAME Recorded May 22, 2017
From: FREESCALE SEMICONDUCTOR, INC.; NXP USA, INC.
To: NXP USA, INC.
Reel/Frame 042525/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ADD OMITTED PAGE 6 OF 22 TO THE ASSIGNMENT AGREEMENT PREVIOUSLY RECORDED AT REEL: 040569 FRAME: 0572. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 28, 2017
From: BROADCOM CORPORATION
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 042108/0597 →
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 Nov 5, 2016
From: BROADCOM CORPORATION
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 040569/0572 →
RELEASE OF SECURITY INTEREST Recorded Sep 30, 2016
From: BANK OF AMERICA N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 040192/0701 →
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 Sep 17, 2008
From: ROFOUGARAN, AHMADREZA (REZA)
To: BROADCOM CORPORATION
Reel/Frame 021544/0901 →
Continuity (2)
Continuation In Part 11648826 · Dec 29, 2006
Related Publication 20090010316A1 · Jan 8, 2009