FDD/TDD wireless link for UNII band

• US 20070264935A1
• Filed: 05/02/2007
• Published: 11/15/2007
• Est. Priority Date: 05/02/2006
• Status: Active Grant

• Current Assignee: Nextivity Incorporated
• Original Assignee: Nextivity Incorporated
• Inventors: Mohebbi, Behzad
• Granted Patent: US 8,570,983 B2
• Time in Patent Office: Days
• US Class Current: 455/41.200
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04K 2203/16 for telephony
• CPC Class Codes: H04K 3/226 Selection of non-jammed channel for communication spectrum sharing arrangements H04W16/14; selection of wireless resources by user or terminal H04W72/02
• CPC Class Codes: H04K 3/822 by detecting the presence of a surveillance, interception or detection
• CPC Class Codes: H04L 27/0002 analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line duplex arrangements H04L5/143
• CPC Class Codes: H04L 5/06 the signals being represented by different frequencies combined with time-division multiplexing H04L5/26
• CPC Class Codes: H04L 5/143 for modulated signals H04L5/1469 takes precedence

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

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 and detecting for the presence of a radiating source other than the inbound data on a 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 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, wherein the first and second channels are within the UNII band of frequencies.

3. 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.

4. 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.

5. 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.

6. A method in accordance with claim 5, further comprising:

selecting the second channel; and

performing a channel availability check on the selected second channel until an available second channel is determined.

7. 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.

9. A method in accordance with claim 7, 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.

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

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

11. 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 while detecting for the presence of a radiating source other than the inbound data on a 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 while detecting for the presence of a radiating source other than the inbound data on the first channel.

12. A method in accordance with claim 11, wherein the first and second channels are within the UNII band of frequencies.

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

14. A method in accordance with claim 11, 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.

15. A method in accordance with claim 11, further comprising:

selecting the first channel; and

performing a channel availability check on the selected first channel until an available first channel is determined.

16. A method in accordance with claim 15, further comprising:

selecting the second channel; and

performing a channel availability check on the selected second channel until an available second channel is determined.

17. 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 and detecting for the presence of a radiating source other than the inbound data on a 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 and detecting for the presence of a radiating source other than the inbound data on the first channel.

18. A communication system in accordance with claim 17, wherein each transceiver further includes a radar detector for detecting for the presence of the radiating source other than the inbound data.

19. A communication system in accordance with claim 17, 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.

20. A communication system in accordance with claim 17, further comprising a channel selector for selecting the first and second channels.