IP Library Granted Patent US 8,570,983
Granted Patent B2
US 8,570,983 · App. 11/799,838 · Granted Oct 29, 2013

FDD/TDD wireless link for UNII band

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Quick Facts
Patent No.
US 8,570,983
App. No.
11/799,838
Granted
Oct 29, 2013
Kind
B2
Abstract

Systems and methods for full duplex communications on a wireless link between two transceiver devices are disclosed. A first portion of outbound data is transmitted from one transceiver device to the other transceiver device on a first channel, while a first portion of inbound data from the other transceiver device is received on a second channel and the presence of a radiating source other than the inbound data is detected. A second portion of the outbound data is transmitted from the transceiver device to the other transceiver device on the second channel, while a second portion of the inbound data is received from the other of the two transceiver devices on the first channel and the presence of a radiating source other than the inbound data is detected.

Claims (25)

1. A method for full duplex communications on a wireless link between two transceiver devices, the method comprising:

transmitting a first portion of outbound data to the other of the two transceiver devices on a first channel, while receiving a first portion of inbound data from the other of the two transceiver devices on a second channel, wherein the first and second channels are within the UNII band of frequencies, and detecting for the presence of a radiating source other than the inbound data on the second channel; and

transmitting a second portion of the outbound data to the other of the two transceiver devices on the second channel, while receiving a second portion of the inbound data from the other of the two transceiver devices on the first channel and detecting for the presence of a radiating source other than the inbound data on the first channel.

2. A method in accordance with claim 1 , further comprising estimating pathloss while receiving the first portion of inbound data and while receiving the second portion of inbound data.

3. A method in accordance with claim 1 , wherein the first channel corresponds to a first set of frequencies in the UNII band of frequencies, and the second channel corresponds to a second set of frequencies in the UNII band of frequencies.

4. A method in accordance with claim 1 , further comprising: selecting the first channel; and performing a channel availability check on the selected first channel until an available first channel is determined.

5. A method in accordance with claim 4 , further comprising: selecting the second channel; and performing a channel availability check on the selected second channel until an available second channel is determined.

6. A method in accordance with claim 1 , further comprising switching from transmitting the first portion of outbound data to the other of the two transceiver devices on the first channel to transmitting the second portion of the outbound data to the other of the two transceiver devices on the second channel.

7. A method in accordance with 1 , wherein the switching occurs at a predetermined time.

8. A method in accordance with claim 6 , further comprising switching from receiving the first portion of inbound data from the other of the two transceiver devices on the second channel to receiving the second portion of the inbound data from the other of the two transceiver devices on the first channel.

9. A method in accordance with claim 8 , wherein the switching occurs at the predetermined time.

10. In a transceiver device, a method for full duplex communications on a wireless link to another transceiver device, the method comprising:

transmitting, with a transmitter, a first portion of outbound data to the other of the two transceiver devices on a first channel and receiving, with a receiver, a first portion of inbound data from the other of the two transceiver devices on a second channel, wherein the first and second channels are within the UNII band of frequencies, while detecting for the presence of a radiating source other than the inbound data on the second channel;

switching the transmitter and receiver to transmit a second portion of the outbound data to the other of the two transceiver devices on the second channel and receive a second portion of the inbound data from the other of the two transceiver devices on the first channel while detecting for the presence of a radiating source other than the inbound data on the first channel.

11. A method in accordance with claim 10 , further comprising estimating pathloss while receiving the first portion of inbound data and while receiving the second portion of inbound data.

12. A method in accordance with claim 10 , wherein the first channel corresponds to a first set of frequencies in the UNII band of frequencies, and the second channel corresponds to a second set of frequencies in the UNII band of frequencies.

13. A method in accordance with claim 10 , further comprising: selecting the first channel; and performing a channel availability check on the selected first channel until an available first channel is determined.

14. A method in accordance with claim 13 , further comprising: selecting the second channel; and performing a channel availability check on the selected second channel until an available second channel is determined.

15. A communication system comprising:

a first transceiver device configured for full duplex communications on a wireless link with a second transceiver device, each transceiver device further configured to:

transmit a first portion of outbound data to the other of the two transceiver devices on a first channel, while receiving a first portion of inbound data from the other of the two transceiver devices on a second channel, wherein the first and second channels are within the UNII band of frequencies, and detecting for the presence of a radiating source other than the inbound data on the second channel; and

transmit a second portion of the outbound data to the other of the two transceiver devices on the second channel, while receiving a second portion of the inbound data from the other of the two transceiver devices on the first channel and detecting for the presence of a radiating source other than the inbound data on the first channel.

16. A communication system in accordance with claim 15 , wherein each transceiver further includes a radar detector for detecting for the presence of the radiating source other than the inbound data.

17. A communication system in accordance with claim 15 , wherein each transceiver further includes a timer for setting a time to switch between transmitting on the first channel and transmitting on the second channel.

18. A communication system in accordance with claim 15 , further comprising a channel selector for selecting the first and second channels.

Assignments (9)
SECURITY INTEREST Recorded Jun 7, 2024
From: NEXTIVITY, INC.
To: WTI FUND X, INC.
Reel/Frame 067666/0001 →
RELEASE OF SECURITY INTEREST Recorded Dec 28, 2022
From: VENTURE LENDING & LEASING IV, INC; VENTURE LENDING & LEASING V, INC.
To: NEXTIVITY, INC.
Reel/Frame 062222/0056 →
SECURITY INTEREST Recorded Dec 23, 2022
From: NEXTIVITY, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 062213/0590 →
RELEASE OF SECURITY INTEREST Recorded Dec 22, 2022
From: VENTURE LENDING & LEASING IV, INC.; VENTURE LENDING & LEASING V, INC.
To: NEXTIVITY, INC.
Reel/Frame 062180/0367 →
RELEASE OF SECURITY INTEREST Recorded Jan 8, 2021
From: VENTURE LENDING & LEASING VII, INC.; VENTURE LENDING & LEASING VIII, INC.
To: NEXTIVITY, INC.
Reel/Frame 054863/0645 →
SECURITY INTEREST Recorded Dec 13, 2020
From: NEXTIVITY, INC.
To: LIVE OAK BANKING COMPANY
Reel/Frame 054711/0816 →
SECURITY INTEREST Recorded Jan 9, 2017
From: NEXTIVITY, INC.
To: VENTURE LENDING & LEASING VII, INC.; VENTURE LENDING & LEASING VIII, INC.
Reel/Frame 041306/0273 →
SECURITY AGREEMENT Recorded Jun 30, 2008
From: NEXTIVITY, INC.
To: VENTURE LENDING & LEASING IV, INC.; VENTURE LENDING & LEASING V, INC.
Reel/Frame 021193/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 2, 2007
From: MOHEBBI, BEHZAD
To: NEXTIVITY, INC.
Reel/Frame 019369/0021 →