Wireless TDMA system and method for network communications

• US 20050190739A1
• Filed: 05/04/2005
• Published: 09/01/2005
• Est. Priority Date: 06/21/2000
• Status: Abandoned Application

• Current Assignee: Intellectual Ventures Holding 73 LLC (Intellectual Ventures LLC)
• Original Assignee: Intellectual Ventures Holding 73 LLC (Intellectual Ventures LLC)
• Inventors: Ho, Minnie, Sparrell, Carlton, Aiello, Roberto, Rogerson, Gerald
• Application Number:
  US11/121,613
• Publication Number:
  US 20050190739A1
• Time in Patent Office: Days
• US Class Current: 370/347
• CPC Class Codes: H04B 7/2659 for data rate control
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

The present invention describes a network communication system which includes a first slave transceiver configured to communicate a plurality of TDMA data packets at different data rates to a second slave transceiver. The second slave transceiver is also configured to communicate a plurality of TDMA data packets at different data rates to the first slave transceiver. A master transceiver manages data communications between the first slave transceiver and the second slave transceiver. Each transceiver includes a data modulation unit, a transmitter, an antenna, and a receiver. The transmitter is coupled to the data modulation unit and the transmitter is configured to generate a pulse stream according to the data modulation unit. The receiver is configured to detect and demodulate said ultra wide band base band signals operating at variable pulse repetition frequencies and having different modulation methods.

Claims

1. A master transceiver configured to transmit an ultra wide band signal, comprising:

at least one slave transceiver in communication with the master transceiver; and

a framing control unit housed by the master transceiver, the framing control unit configured to generate a plurality of TDMA frames, each of the plurality of TDMA frames having a plurality of slots, each of the plurality of slots having a start of frame slot;

wherein the start of frame slot includes a timestamp slot that is configured to permit the master transceiver to change each of the plurality of TDMA frames.

2. The master transceiver of claim 1, wherein the master transceiver changes each of the plurality of TDMA frames by changing a start time of a data slot section.

3. The master transceiver of claim 1, wherein the master transceiver changes each of the plurality of TDMA frames by changing a duration of a data slot section.

4. The master transceiver of claim 1, further comprising a Medium Access Control protocol in communication with the framing control unit, the Medium Access Control protocol configured to define each of the plurality of TDMA frames.

5. The master transceiver of claim 1, wherein the communication between the master transceiver and the at least one slave transceiver is configured to provide for isochronous data communications.

6. The master transceiver of claim 1, wherein the communication between the master transceiver and the at least one slave transceiver is configured to provide for asynchronous data communications.

7. The master transceiver of claim 1, wherein the start of frame slot further comprises a synchronization slot configured to synchronize communications between the master transceiver and the at least one slave transceiver.

8. A transceiver, comprising:

a data modulation unit configured to generate a plurality of signals having variable pulse repetition frequencies and different modulation techniques;

a transmitter communicating with the data modulation unit, the transmitter configured to generate a pulse stream according to the data modulation unit;

an antenna communicating with the transmitter, the antenna configured to transmit a plurality of ultra wide band signals; and

a receiver configured to detect and demodulate the ultra wide band signals.

9. The transceiver of claim 8, wherein the data modulation unit comprises a transmit module configured to generate the plurality of ultra wide band signals that are communicated to said transmitter.

10. The transceiver of claim 9, wherein the transmit module is configured to modulate signals using different modulation techniques.

11. The transceiver of claim 8, where the transmitter further comprises a pulse generator system configured to generate a plurality of pull-up signals and a plurality of pull-down signals.

12. The transceiver of claim 11, wherein the transmitter further comprises a transistor drive system, the transistor drive system configured to communicate the plurality of pull-up signals and the plurality of pull-down signals to the antenna.

13. The transceiver of claim 8, wherein the receiver further comprises a front end configured to receive and amplify the ultra wide band signal generated by the antenna.

14. The transceiver of claim 13, wherein the receiver further comprises a pulse detection unit communicating with the front end, the pulse detection unit configured to detect a plurality of pulse detection pulses from the received and amplified ultra wide band signals.

15. The transceiver of claim 14, wherein the receiver further comprises a data processing unit communicating with the pulse detection unit, the data processing unit configured to retrieve a plurality of data from the plurality of pulse detection pulses.

16. The transceiver of claim 15, wherein the data processing unit further comprises a divider circuit housed within the data processing unit, the divider circuit configured to provide the pulse repetition frequency for sampling by the data processing unit.

17. The transceiver of claim 15, wherein the data processing unit further comprises a decoder housed within the data processing unit, the decoder configured to detect different modulation techniques.

18. An ultra wide band communication system, comprising:

a first ultra wide band device having a first data bandwidth requirement, and configured to transmit and receive data at different data rates;

a second ultra wide band device having a second data bandwidth requirement, and configured to transmit and receive data at different data rates and configured to communicate with the first device; and

a master transceiver configured to manage data communications between the first ultra wide band device and the second ultra wide band device.

19. The ultra wide band communication system of claim 18, wherein the communication between the first ultra wide band device and the second ultra wide band device is performed in a wireless environment.

20. The ultra wide band communication system of claim 18, wherein the first device, second device and the master transceiver vary an ultra wide band pulse repetition frequency as a function of a signal-to-noise ratio.

21. The ultra wide band communication system of claim 18, wherein the first device, second device and the master transceiver vary an ultra wide band pulse repetition frequency as a function of a bit error rate.

22. An ultra wide band communication system, comprising:

a first ultra wide band slave transceiver configured to communicate a plurality of TDMA data packets at different data rates;

a second ultra wide band slave transceiver configured to communicate a plurality of TDMA data packets at different data rates than the first slave transceiver; and

a master transceiver configured to manage communication between the first ultra wide band slave transceiver and the second ultra wide band slave transceiver.

23. The ultra wide band communication system of claim 22, wherein the master transceiver synchronizes communication between the first slave transceiver and the second slave transceiver.

24. The ultra wide band communication system of claim 22, wherein communication between the first slave transceiver and the second slave transceiver is performed in a wireless environment.

25. The ultra wide band communication system of claim 22, wherein a transmission rate of the plurality of TDMA data packets varies as a function of a signal-to-noise ratio.

26. The ultra wide band communication system of claim 22, wherein a transmission rate of the plurality of TDMA data packets varies as a function of a bit error rate.