IP Library Granted Patent US 11,647,478
Granted Patent B2
US 11,647,478 · App. 14/602,786 · Granted May 9, 2023

Network discovery in an autoconfigured backhaul transceiver

Inventor: Curtis Ling (Carlsbad, CA)
Assignee: MaxLinear, Inc.
H04W64/003H04W48/12H04B7/0617H04W16/28H04W92/12
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Quick Facts
Patent No.
US 11,647,478
App. No.
14/602,786
Granted
May 9, 2023
Kind
B2
Abstract

A microwave backhaul transceiver comprises a plurality of antenna arrays, positioning circuitry, and signal processing circuitry. The microwave backhaul transceiver may determine, via the positioning circuitry, a location of the small cell backhaul transceiver. The microwave backhaul transceiver may, generate, via the signal processing circuitry, a beacon signal that uniquely indicates the location. The microwave backhaul transceiver may transmit the beacon signal via at least one of the antenna arrays. The beacon signal may be generated using a spreading code generated from a unique identifier of the location. The unique identifier of the location may comprise global positioning system coordinates and/or a street address. During the transmitting, a directionality at which the beacon radiates from a particular one of the antenna arrays may be varied such that the beacon is transmitted in multiple directions from the particular one of the antenna arrays.

Claims (32)

1. A method comprising:

in a microwave backhaul transceiver comprising a plurality of antenna arrays, positioning circuitry, a sensor and signal processing circuitry:

determining, via said positioning circuitry, a location of said microwave backhaul transceiver;

determining, via said sensor, an orientation of said microwave backhaul transceiver, wherein said microwave backhaul transceiver is operable to adjust said orientation based on a wind load;

identifying, via said signal processing circuitry, a beacon signal, wherein said beacon signal includes a unique identifier of said location;

responsive to a determination that a correlation value between the beacon signal and a spreading code is above a determined threshold, determining that the beacon signal was received from a second backhaul transceiver; and

establishing a link with the second backhaul transceiver.

2. The method of claim 1 , wherein said unique identifier of said location comprises global positioning system coordinates.

3. The method of claim 1 , wherein said unique identifier of said location comprises a street address.

4. The method of claim 1 , wherein:

said microwave backhaul transceiver comprises a plurality of front-end circuits.

5. The method of claim 1 , comprising determining, by said signal processing circuitry, a plurality of spreading codes of possible link partners based on said location, wherein said plurality of spreading codes are a subset of all possible spreading codes.

6. The method of claim 5 , comprising:

receiving a signal via at least one of said antenna arrays;

processing said received signal with said plurality of spreading codes to generate a plurality of despread signals; and

determining a source of said received signal based on said plurality of despread signals.

7. A system comprising:

a microwave backhaul transceiver comprising a plurality of antenna arrays, positioning circuitry, a sensor and signal processing circuitry, wherein:

said positioning circuitry is operable to determine a location of said microwave backhaul transceiver;

said sensor is operable to determine an orientation of said microwave backhaul transceiver, wherein said microwave backhaul transceiver is operable to adjust said orientation based on a wind load; and

said signal processing circuitry is operable to identify a first beacon and disregard the first beacon responsive to a determination that a correlation between the first beacon and a first spreading code is below a determined threshold, generate, in view of a second beacon and for transmission via at least one of said antenna arrays, a beacon signal that uniquely indicates said location, wherein said beacon signal is controlled dynamically according to said orientation, and wherein said signal processing circuitry is operable to generate said beacon signal using a second spreading code algorithmically generated from a unique identifier of said location, and wherein said signal processing circuitry comprises a digital to analog converter (DAC) operable to convert a microwave band comprising said beacon signal from a digital signal to an analog signal.

8. The system of claim 7 , wherein said unique identifier of said location comprises global positioning system coordinates.

9. The system of claim 7 , wherein said unique identifier of said location comprises a street address.

10. The system of claim 7 , wherein:

said microwave backhaul transceiver comprises a plurality of front-end circuits; and each of said front-end circuits is operable to control a directionality at which said beacon signal radiates from a respective one of said antenna arrays.

11. The system of claim 7 , wherein:

said microwave backhaul transceiver comprises a plurality of front-end circuits; and

each of said front-end circuits is operable to vary a directionality at which said beacon signal radiates from a particular one of said antenna arrays such that said beacon is transmitted in multiple directions from said particular one of said antenna arrays.

12. The system of claim 7 , wherein said signal processing circuitry is operable to determine a plurality of spreading codes of possible link partners based on said location, wherein said plurality of spreading codes are a subset of all possible spreading codes.

13. The system of claim 12 , wherein said signal processing circuitry is operable to:

process a received signal with said plurality of spreading codes to generate a plurality of despread signals; and

determine a source of said received signal based on said plurality of despread signals.

Assignments (5)
SECURITY AGREEMENT Recorded Jul 9, 2021
From: MAXLINEAR, INC.; MAXLINEAR COMMUNICATIONS, LLC; EXAR CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 056816/0089 →
RELEASE OF SECURITY INTEREST Recorded Jun 23, 2021
From: MUFG UNION BANK, N.A.
To: MAXLINEAR, INC.; EXAR CORPORATION; MAXLINEAR COMMUNICATIONS LLC
Reel/Frame 056656/0204 →
SUCCESSION OF AGENCY (REEL 042453 / FRAME 0001) Recorded Jul 1, 2020
From: JPMORGAN CHASE BANK, N.A.
To: MUFG UNION BANK, N.A.
Reel/Frame 053115/0842 →
SECURITY AGREEMENT Recorded May 12, 2017
From: MAXLINEAR, INC.; ENTROPIC COMMUNICATIONS, LLC (F/K/A ENTROPIC COMMUNICATIONS, INC.); EXAR CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 042453/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2015
From: LING, CURTIS
To: MAXLINEAR, INC.
Reel/Frame 036306/0675 →