Distributed Collaborative Signaling in Full Duplex Wireless Transceivers

• US 20130301484A1
• Filed: 05/13/2013
• Published: 11/14/2013
• Est. Priority Date: 05/13/2012
• Status: Active Grant

• Current Assignee: Amir Keyvan Khandani
• Original Assignee: Amir Keyvan Khandani
• Inventors: Khandani, Amir Keyvan
• Granted Patent: US 9,763,104 B2
• Time in Patent Office: Days
• US Class Current: 370/277
• CPC Class Codes: H04B 1/123 using adaptive balancing or compensation means adaptive filter circuits and algorithms H03H
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver
• CPC Class Codes: H04B 7/026 Co-operative diversity, e.g. using fixed or mobile stations as relays
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0478 Special codebook structures directed to feedback optimisation
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/0669 using different channel coding between antennas space-time coding H04L1/0618
• CPC Class Codes: H04B 7/10 Polarisation diversity; Directional diversity
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks

Abstract

Two-way (full-duplex) wireless links in facilitating network management and improve network performance. Once aspect includes methods for network management using an overlaid network for control signaling. Another aspects include methods to facilitate practical realization and improve performance of some of the network information theoretic configurations, such as Space-Division Multiple Access (SDMA) in uplink and downlink, Interference Channel, and other forms of distributed collaborative signaling schemes. Another aspect includes methods to support cognitive wireless networks.

Claims

1. A method comprising:

in a full duplex transceiver, transmitting a first transmit message to a first receiver while simultaneously receiving a first receive message from a second full duplex transceiver, wherein the first receive message is intended for a second receiver;

in the full-duplex transceiver, transmitting in a next time duration a retransmission of the first receive message to the second receiver superimposed with a second transmit message addressed to the first receiver.

2. The method of claim 1 wherein the first transmit message and the first receive message are coded blocks of data.

3. The method of claim 1 wherein the retransmission of the first receive signal is relaying a noisy version of the receive signal;

4. The method of claim 1 wherein the retransmission of the first receive signal is based on either a completely decoded or partially decoded first receive message to remove or reduce the effect of the noise.

5. The method of claim 4 wherein, to reduce or remove noise, the decoding is based on one of:

hard decision decoding, soft decision decoding or soft output decoding.

6. The method of claim 1 further comprising determining a retransmission policy for a plurality of full duplex transceivers for retransmitting the first receive message from a third full duplex transceiver.

7. A method comprising:

in a full duplex transceiver, transmitting a first transmit message to a first receiver while simultaneously receiving a first receive message from a second full duplex transceiver, wherein the first receive message is intended for a second receiver;

in the full-duplex transceiver, receiving retransmission policy information and responsively transmitting in a next time duration a retransmission of the first receive message to the second receiver superimposed with a second transmit message addressed to the first receiver.

8. The method of claim 7 wherein the retransmission of the first receive signal is relaying a noisy version of the receive signal;

9. The method of claim 7 wherein the retransmission of the first receive signal is based on either a completely decoded or partially decoded first receive message to remove or reduce the effect of the noise.

10. The method of claim 9 wherein, to reduce or remove noise, the decoding is based on one of:

hard decision decoding, soft decision decoding or soft output decoding.

11. A method comprising:

in a full duplex transceiver, in a first signaling interval, receiving a first receive message addressed to the full duplex transceiver and a second receive message addressed to a second full duplex transceiver;

in the full-duplex transceiver, receiving retransmission policy information; and

,

responsively transmitting in a next time duration a retransmission of the second receive message to a receiver of the second full duplex receiver while simultaneously receiving a third receive message intended for the full duplex transceiver.

12. The method of claim 11 wherein the retransmission of the second receive message is relaying a noisy version of the second receive message;

13. The method of claim 11 wherein the retransmission of the second receive message is based on either a completely decoded or partially decoded first receive message to remove or reduce the effect of the noise.

14. The method of claim 13 wherein, to reduce or remove noise, the decoding is based on one of:

hard decision decoding, soft decision decoding or soft output decoding.