Dynamic improvement of link symmetry in co-located PLC and RF networks

• US 8,817,847 B2
• Filed: 07/19/2012
• Issued: 08/26/2014
• Est. Priority Date: 07/22/2011
• Status: Active Grant

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Sun, Yanjun, Xu, Gang, Choi, Soon-Hyeok, Sandeep, Bhadra, Lu, Xiaolin, Xhafa, Ariton E., Fu, Minghua, Liang, Robert, Yim, Susan
• Primary Examiner(s): Tran, Khai
• Application Number:
  US13/553,204
• Publication Number:
  US 20130188670A1
• Time in Patent Office: 768 Days
• Field of Search: 375/211, 375/219, 375/210, 373/53, 374/01, 370/353, 370/401
• US Class Current: 375/211
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04B 3/58 Repeater circuits

Abstract

An electronic communication device comprises a first transceiver capable of a bi-directional communication session on a first communication medium; a second transceiver capable of a bi-directional communication session on a second communication medium; and a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to receive, from the first transceiver, a first signal, and cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session.

Claims

1. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session,

wherein the first communication medium and the second communication medium are one of a radio frequency link and a power line communication link.

2. The device of claim 1, wherein the control logic is further configured to:

receive a second signal from the first transceiver; and

cause, in response to the second signal, data transmitted by the second transceiver on the second communication medium to be transmitted instead by the first transceiver on the first communication medium while the first transceiver continues to receive data as part of the communication session.

3. The device of claim 2, wherein the second signal is related to at least one of:

throughput,

signal to noise ratio,

packet delivery ratio,

packet data rate,

packet delivery latency,

energy per bit,

expected transmission count, and

number of probing packets received in a given time window.

4. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session,

wherein the first signal is related to at least one of;

throughput,

signal to noise ratio,

packet delivery ratio,

packet data rate,

packet delivery latency,

energy per bit,

expected transmission count, and

number of probing packets received in a given time window.

5. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session, wherein the first communication medium and the second communication medium are the same.

6. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium;

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to;

receive, from the first transceiver, a first signal,

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session; and

an extended acknowledgment timeout parameter.

7. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to;

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session, wherein the data transmitted by the second transceiver on the second communication medium is transmitted through at least one relay node.

8. The device of claim 7, wherein acknowledgments transmitted on the second communication medium are not sent or received through a relay node.

9. A method for electronic communication comprising:

providing a first transceiver capable of a bi-directional communication session on a first communication medium, a second transceiver capable of a bi-directional communication session on a second communication medium, wherein the first communication medium and the second communication medium are the same; and

a control logic coupled to the first transceiver and the second transceiver;

receiving, by the control logic from the first transceiver, a first signal; and

causing, by the control logic in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session.

10. The method of claim 9, further comprising:

receiving, by the control logic from the first transceiver, a second signal; and

causing, by the control logic in response to the second signal, data transmitted by the second transceiver on the second communication medium to be transmitted instead by the first transceiver on the first communication medium while the first transceiver continues to receive data as part of the communication session.

11. The method of claim 10, wherein the second signal is related to at least one of:

throughput,

signal to noise ratio,

packet delivery ratio,

packet data rate,

packet delivery latency,

energy per bit,

expected transmission count, and

number of probing packets received in a given time window.

12. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session, wherein the first signal is related to at least one of;

throughput,

signal to noise ratio,

packet delivery ratio,

packet data rate,

packet delivery latency,

energy per bit,

expected transmission count, and

number of probing packets received in a given time window.

13. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session,

wherein

the first communication medium and the second communication medium are one of a radio frequency link and a power line communication link.

14. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session, wherein the first communication medium and the second communication medium are accessed in a single device.

15. The method of claim 14, wherein the single device is configured with an extended acknowledgment timeout parameter.

16. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to

receive, from the first transceiver, a first signal, and

cause, in response to the first signal, data transmitted by the first transceiver on the first communication medium as part of a communication session to be transmitted instead by the second transceiver on the second communication medium while the first transceiver continues to receive data as part of the communication session, wherein the data transmitted by the second transceiver on the second communication medium is transmitted through at least one relay node.

17. The method of claim 16, wherein acknowledgments transmitted on the second communication medium are not sent or received through a relay node.

18. An electronic communication device comprising:

a first transceiver capable of a bi-directional communication session on a first communication medium;

a second transceiver capable of a bi-directional communication session on a second communication medium; and

a control logic coupled to the first transceiver and the second transceiver, wherein the control logic is configured to;

receive, from the first transceiver, a first signal,

determine an existence of asymmetric communication in the first communication medium,

broadcast, to neighboring nodes, information related to the first signal and information related to the existence of asymmetric communication in the first communication medium, and

couple, in response to at least one of the first signal and the existence of asymmetric communication in the first communication medium, the first communication medium and the second communication medium.

19. The device of claim 18, wherein the control logic is further configured to:

receive, from the first transceiver, a second signal,

determine an existence of substantially symmetric communication in the first communication medium, and

decouple, in response to at least one of the second signal and the existence of substantially symmetric communication in the first communication medium, the first bi-directional medium and the second bi-directional medium.

20. The device of claim 18, wherein the coupling is based on at least one of:

an ability to improve communication symmetry,

a cost, and

performance gains.

21. The device of claim 18, wherein the neighboring nodes re-broadcast to additional nodes at least one of information related to the first signal and information related to the existence of asymmetric communication.

22. The method of claim 18, wherein

the first communication medium and the second communication medium are one of a radio frequency link and a power line communication link, and

the first bi-directional medium and the second bi-directional medium are not the same.

23. The method of claim 18, wherein the first communication medium and the second communication medium are the same.