Multiplexed architecture for simultaneous transmission and reception

• US 7,835,427 B1
• Filed: 03/30/2007
• Issued: 11/16/2010
• Est. Priority Date: 03/30/2007
• Status: Active Grant

• Current Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Frank, Robert Joseph, Vagher, Michael R., Chavez, Carlos J., Welty, Carlen R.
• Primary Examiner(s): Bayard; Emmanuel
• Application Number:
  US11/731,798
• Time in Patent Office: 1,327 Days
• Field of Search: 375219-222, 375/130, 375132-133
• US Class Current: 375/219
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04B 1/7143 Arrangements for generation of hop patterns

Abstract

A system for simultaneously transmitting and receiving signals in a frequency hopping system. The system includes a multiplexor configured to filter a plurality of frequency hopping message pulses based on a frequency associated with each pulse, a plurality of transceivers configured to receive the pulses from the multiplexor, and a modem configured for simultaneous transmission and reception whereby transmission of the pulses are isolated from potentially received pulses by selecting a specific sub-band and transceiver corresponding to the specific sub-band through which to transmit each pulse.

Claims

1. A system for simultaneously transmitting and receiving signals in a frequency hopping system, comprising:

a multiplexor configured to filter a plurality of frequency hopping message pulses based on a frequency associated with each pulse;

a plurality of transceivers configured to receive the pulses from the multiplexor; and

a modem configured for simultaneous transmission and reception, wherein the modem is further configured to select a specific sub band and one of the plurality of transceivers corresponding to the specific sub band through which to transmit each pulse, whereby transmission of the pulses are isolated from potentially received pulses.

2. The system of claim 1, wherein each of the plurality of transceivers is associated with a unique frequency sub band.

3. The system of claim 2, wherein the range of frequencies within the unique frequency sub band is variable.

4. The system of claim 2, wherein the modem is further configured to command the transceivers to transmit on an associated frequency.

5. The system of claim 4, wherein the associated frequency is selected to provide desired isolation between the transceivers.

6. The system of claim 5, wherein the desired isolation and associated frequency are determined as a function of current transmit power.

7. The system of claim 1, wherein the modem includes a digital signal processor configured to receive and process received signals while concurrently sending pulses to the plurality of transceivers for transmission.

8. A system for simultaneously transmitting and receiving signals in a frequency hopping system, comprising:

a multiplexor means configured to filter a plurality of frequency hopping message pulses based on a frequency associated with each pulse;

a plurality of transceiving means configured to receive the pulses from the multiplexor; and

a modem means configured for simultaneous transmission and reception, wherein the modem means is further configured to select a specific sub band and one of the plurality of transceivers corresponding to the specific sub band through which to transmit each pulse, whereby transmission of the pulses are isolated from potentially received pulses.

9. The system of claim 8, wherein each of the plurality of transceiving means is associated with a unique frequency sub band.

10. The system of claim 9, wherein the range of frequencies within the unique frequency sub band is variable.

11. The system of claim 9, wherein the modem is further configured to command the transceivers to transmit on an associated frequency.

12. The system of claim 11, wherein the associated frequency is selected to provide isolation between the transceiving means.

13. The system of claim 12, wherein the provided isolation and associated frequency are determined as a function of current transmit power.

14. The system of claim 8, wherein the modem means includes a digital signal processing means configured to receive and process received signals while concurrently sending pulses to the plurality of transceiving means for transmission.

15. A computer implemented method for simultaneously transmitting and receiving signals in a frequency hopping system, comprising:

transmitting a frequency hopping message pulse on a frequency associated with the transmitted pulse;

receiving a frequency hopping message pulse on a different frequency associated with the received pulse during the transmission of the transmitted pulse; and

assigning a frequency to the transmitted pulse based on a frequency associated with the received pulses by selecting a specific sub band and transceiver corresponding to the specific sub band.

16. The method of claim 15, wherein associating a frequency with a transmitted pulse includes providing the transmitted pulse to one of a plurality of transceivers, each transceiver being associated with a unique frequency sub band.

17. The method of claim 16, wherein the range of frequencies within the unique frequency sub band is variable.

18. The method of claim 16, wherein providing the transmitted pulse to one of a plurality of transceivers includes commanding the transceiver to transmit on a particular frequency within the frequency sub band.

19. The method of claim 15, wherein the associated frequency is selected to provide isolation between the transceivers.

20. The method of claim 19, wherein the provided isolation and associated frequency are determined as a function of current transmit power.