Granted Patent B2

US 7,680,090 · App. 11/711,705 · Granted Mar 16, 2010

Abstract

Claims (41)

1. A transceiver, comprising:

a receiver circuit configured to process an incoming signal received over a transmission channel;

a transmitter circuit configured to generate an outgoing signal;

a preamble detector configured to monitor the transmission channel to determine whether a preamble or header is currently being transmitted over the transmission channel; and

a control circuit configured to enable the transmitter circuit to generate the outgoing signal whenever the preamble detector determines that no preamble or header is currently being received,

wherein the preamble and the header both use a first spreading code different from a second spreading code used by the payload associated with the header.

2. The transceiver of claim 1 ,

further comprising a memory for storing packet details regarding a status of other packets being sent over the transmission channel,

wherein the control circuit is further configured to enable the transmitter circuit to generate the outgoing signal whenever the preamble detector determines that no preamble or header is currently being received, and that a target device is not currently sending or receiving a data signal.

3. The transceiver of claim 1 , further comprising an antenna configured to receive the incoming signal from the transmission channel, to provide the incoming signal to the receiver circuit, to receive the outgoing signal generated by the transmitter circuit, and to transmit the outgoing signal over the transmission channel.

4. The transceiver of claim 3 , further comprising a switching element configured to connect one of the receiver circuit and the transmitter circuit to the antenna based on a switch control signal from the control circuit.

5. The transceiver of claim 1 , wherein the receiver circuit is further configured to decode the preamble and the header when the preamble and the header are detected by the preamble detector, to determine a target device for a payload associated with the header, and to identify the target device to the control circuit.

6. The transceiver of claim 1 , wherein the incoming signal and the outgoing signal use a waveform with a processing gain of about 10 dB or greater.

7. The transceiver of claim 1 , wherein the transmission channel is a wireless channel.

8. The transceiver of claim 1 , wherein the incoming signal and the outgoing signal are both ultrawide bandwidth signals.

9. The transceiver of claim 1 , wherein the transceiver is implemented in an integrated circuit.

10. A method of operating a local transceiver, comprising:

receiving at least a preamble and a header portion of an incoming packet over a transmission medium, the incoming packet comprising the preamble, the header portion, and a payload;

decoding the preamble and header; and

transmitting an outgoing packet over the transmission medium to a target transceiver after the preamble and header are received and decoded, but before the payload is finished being transmitted over the transmission medium,

wherein the incoming packet is addressed to a device other than the local transceiver or the target transceiver.

11. The method of claim 10 , wherein the preamble and the header both use a first spreading code different from a second spreading code used by the payload.

12. The method of claim 10 , wherein the operation of decoding the preamble and header comprises:

identifying a destination transceiver for the payload based on the header;

determining whether the destination transceiver corresponds to the local transceiver; and

determining whether the destination transceiver corresponds to the target transceiver.

13. The method of claim 10 , wherein the method incoming packet is sent using an ultrawide bandwidth transmission.

14. The method of claim 10 , wherein the method is implemented in an integrated circuit.

15. A method of operating a local transceiver, comprising:

receiving at least a preamble and a header portion of an incoming packet over a transmission medium, the incoming packet comprising the preamble, the header portion, and a payload;

decoding the preamble and header;

determining whether an incoming destination address for the payload corresponds to one of a local address for the local transceiver or an outgoing address for a remote transceiver that is an intended destination for an outgoing packet;

repeating the receiving, decoding, and determining operations after the preamble and header are received and decoded, but before the payload is finished being transmitted,

wherein the incoming packet is addressed to the remote transceiver.

16. The method of claim 15 , wherein the preamble and the header both use a first spreading code different from a second spreading code used by the payload.

17. The method of claim 15 , wherein the operation of decoding the preamble and header comprises:

identifying a destination transceiver for the payload based on the header;

determining whether the destination transceiver corresponds to the local transceiver; and

determining whether the destination transceiver corresponds to the target transceiver.

18. The method of claim 15 , wherein the method incoming packet is sent using an ultrawide bandwidth transmission.

19. The method of claim 15 , wherein the method is implemented in an integrated circuit.

Assignments (32)