Method and transceiver for full duplex communication of ultra wideband signals

• US 7,321,611 B2
• Filed: 04/11/2003
• Issued: 01/22/2008
• Est. Priority Date: 09/20/1994
• Status: Expired due to Fees

• Current Assignee: Alereon Incorporated (PNG Telecommunications, Inc.)
• Original Assignee: Alereon Incorporated (PNG Telecommunications, Inc.)
• Inventors: Fullerton, Larry W.
• Primary Examiner(s): Ghebretinsae, Temesghen
• Application Number:
  US10/411,090
• Publication Number:
  US 20030189975A1
• Time in Patent Office: 1,747 Days
• Field of Search: 375/130, 375/219, 375/342, 375/295, 370/503, 370/280
• US Class Current: 375/219
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• CPC Class Codes: H04B 2201/70707 Efficiency-related aspects

Abstract

An impulse radio transceiver for full duplex ultrawide-band communications. The transceiver comprises an impulse radio transmitter that transmits impulse radio signal pulses, an impulse radio receiver that receives impulse radio signal pulses. Either or both of the impulse radio transmitter and the impulse radio receiver synchronizes the transmission and the reception of the impulse radio signal pulses for the pulse interleaved communications. Pulse interleaving avoids self-interference between the transmitted impulse radio signal pulses and the received impulse radio signal pulses. In addition to pulse interleaved communications, bursts of pulses can be transmitted between two transceiver in an interleaved fashion. Alternatively, two different pulse repetition rates are used to transmit and receive impulse impulse radio signal pulses simultaneously. Still further, selected pulses of the received or transmitted impulse radio signal pulses are blanked to avoid interference.

Claims

1. A method for full duplex communication of ultra wideband signals, comprising:

transmitting a first ultra wideband signal from a first ultra wideband transceiver, the first ultra wideband signal having a first repetition rate, wherein the first repetition rate indicates a number of pulses of the first ultra wideband signal in a time period; and

receiving a second ultra wideband signal at the first ultra wideband transceiver, the second ultra wideband signal having a second repetition rate selected relative to the first repetition rate to reduce interference, wherein the second repetition rate indicates a number of pulses of the second ultra wideband signal in the time period and the second repetition rate is different from the first repetition rate.

2. The method of claim 1, wherein at least one of said first ultra wideband signal and said second ultra wideband signal comprises a plurality of pulses.

3. The method of claim 1, wherein a blanking pulse is produced to prevent receiving of said second ultra wideband signal when transmitting said first ultra wideband signal.

4. The method of claim 3, wherein said blanking pulse is produced by gating a trigger signal that controls transmitting said first ultra wideband signal.

5. The method of claim 1, wherein said first repetition rate and said second repetition rate are selected in accordance with a frequency division multiple access scheme.

6. An ultra wideband transceiver for full duplex ultra wideband communications, comprising:

an ultra wideband radio receiver that receives a first ultra wideband signal having a first repetition rate from a first ultra wideband transceiver, the first ultra wideband-signal having a first repetition rate, wherein the first repetition rate indicates a number of pulses of the first ultra wideband signal in a time period; and

an ultra wideband radio transmitter that transmits a second ultra wideband signal having a second repetition rate selected relative to the first repetition rate to reduce interference, wherein the second repetition rate indicates a number of pulses of the second ultra wideband signal in the time period and the second repetition rate is different from the first repetition rate.

7. The ultra wideband transceiver of claim 6, wherein at least one of said first ultra wideband signal and said second ultra wideband signal comprises a plurality of pulses.

8. The ultra wideband transceiver of claim 6, further comprising a controller that produces a blanking pulse to prevent interference between said second ultra wideband signal and said first ultra wideband signal.

9. The ultra wideband transceiver of claim 8, wherein said blanking pulse is produced by gating a trigger signal that controls the transmission of said first ultra wideband signal.

10. The ultra wideband transceiver of claim 6, wherein said first repetition rate and said second repetition rate are in accordance with a frequency division multiple access scheme.