IP Library Granted Patent US 7,792,488
Granted Patent B2
US 7,792,488 · App. 12/360,554 · Granted Sep 7, 2010

Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength

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Quick Facts
Patent No.
US 7,792,488
App. No.
12/360,554
Granted
Sep 7, 2010
Kind
B2
Abstract

A signal strength that is associated with a first wireless communications channel is detected. Electromagnetic energy is transmitted over the first wireless communications channel in response to the signal strength being sufficiently weak. A determination is made whether a handoff should be made to a second wireless communications channel having a signal that is weaker than a signal of the first wireless communications channel. Related systems and methods are described.

Claims (20)

1. A system comprising:

a detector that is configured to detect a first signal strength that is associated with a first wireless communications channel; and

a transmitter that is configured to radiate electromagnetic energy over the first wireless communications channel responsive to the detector having detected that the first signal strength is sufficiently weak,

wherein the detector is further configured to control the transmitter to perform a handoff to a second wireless communications channel having a signal that is weaker than a signal of the first wireless communications channel.

2. A system according to claim 1 , wherein the detector is at the transmitter and/or spaced apart from the transmitter.

3. A system according to claim 1 , wherein the first wireless communications channel is used by a satellite to provide space-based communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide terrestrial communications.

4. A system according to claim 1 , wherein the first wireless communications channel is used by a terrestrial system to provide terrestrial communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide terrestrial communications.

5. A system according to claim 1 , wherein the first wireless communications channel is used by a wireless communications system to provide wide-area communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide local-area communications.

6. A system according to claim 5 , wherein the transmitter provides local-area communications based upon a Time-Division Duplex (TDD) air interface protocol.

7. A system according to claim 6 , wherein the TDD air interface protocol uses the first wireless communications channel to transmit and to receive information.

8. A method comprising:

detecting by a detector a first signal strength that is associated with a first wireless communications channel;

radiating by a transmitter electromagnetic energy over the first wireless communications channel responsive to detecting that the first signal strength is sufficiently weak; and

controlling the transmitter to perform a handoff to a second wireless communications channel having a signal that is weaker than a signal of the first wireless communications channel.

9. A method according to claim 8 , wherein the first wireless communications channel is used by a satellite to provide space-based communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide terrestrial communications.

10. A method according to claim 8 , wherein the first wireless communications channel is used by a terrestrial system to provide terrestrial communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide terrestrial communications.

11. A method according to claim 8 , wherein the first wireless communications channel is used by a wireless communications system to provide wide-area communications and wherein the transmitter radiates electromagnetic energy over the first wireless communications channel to provide local-area communications.

12. A method according to claim 11 , wherein the transmitter provides local-area communications based upon a Time-Division Duplex (TDD) air interface protocol.

13. A method according to claim 12 , wherein the TDD air interface protocol uses the first wireless communications channel to transmit and to receive information.

14. A method according to claim 8 , wherein the detector is at the transmitter and/or spaced apart from the transmitter.

Assignments (10)
U.S. ASSIGNMENT OF AND AMENDMENT TO INTELLECTUAL PROPERTY SECURITY AGREEMENTS Recorded Mar 3, 2023
From: U.S. BANK NATIONAL ASSOCIATION, AS EXISTING COLLATERAL AGENT
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 062952/0826 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Oct 30, 2020
From: ATC TECHNOLOGIES, LLC
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 054262/0207 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Oct 30, 2020
From: ATC TECHNOLOGIES, LLC
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 054262/0295 →
RELEASE OF SECURITY INTEREST Recorded Oct 26, 2020
From: JEFFERIES FINANCE LLC
To: ATC TECHNOLOGIES, LLC
Reel/Frame 054297/0444 →
RELEASE OF SECURITY INTEREST Recorded Oct 26, 2020
From: CORTLAND CAPITAL MARKET SERVICES LLC
To: LIGADO NETWORKS LLC; ATC TECHNOLOGIES, LLC
Reel/Frame 054297/0724 →
U.S. ASSIGNMENT OF AND AMENDMENT TO INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 26, 2020
From: JEFFERIES FINANCE LLC; LIGADO NETWORKS LLC; ATC TECHNOLOGIES, LLC
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 054298/0001 →
ASSIGNMENT OF SECURITY INTEREST Recorded Oct 22, 2020
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: CORTLAND CAPITAL MARKET SERVICES LLC
Reel/Frame 054214/0165 →
SECURITY INTEREST Recorded Sep 11, 2020
From: ATC TECHNOLOGIES, LLC
To: JEFFERIES FINANCE LLC
Reel/Frame 053755/0916 →
SECURITY AGREEMENT (FIRST LIEN) Recorded Jan 22, 2016
From: ATC TECHNOLOGIES, LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 037573/0939 →
SECURITY AGREEMENT (SECOND LIEN) Recorded Jan 22, 2016
From: ATC TECHNOLOGIES, LLC
To: JEFFERIES FINANCE LLC
Reel/Frame 037573/0963 →