Generic transmission parameter configuration

• US 7,310,380 B1
• Filed: 05/28/2004
• Issued: 12/18/2007
• Est. Priority Date: 05/28/2004
• 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: VanLaningham, Steven, Young, C. David, Barton, Jeffrey A.
• Primary Examiner(s): Payne; David C.
• Assistant Examiner(s): NGUYEN, LEON VIET Q
• Application Number:
  US10/857,786
• Time in Patent Office: 1,299 Days
• Field of Search: 375/216, 375/295, 455/73, 455/91
• US Class Current: 375/295
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0016 involving special memory structures, e.g. look-up tables
• CPC Class Codes: H04L 1/002 Algorithms with memory of the previous states, e.g. Markovian models
• CPC Class Codes: H04L 25/0212 of impulse response

Abstract

A method of determining transmission parameters for a wireless transceiver is disclosed. According to the method, a state table is loaded into a transceiver. The state table includes a plurality of states, each of which has a set of transmission parameters associated therewith. Based upon characteristics of the signals received from a signal source, the transceiver is assigned a first state. The received signals are received and processed using the set of transmission parameters associated with the first state. It is determined whether an observed behavior of the received signals exceeds a threshold associated with the first one of the plurality of states. The transceiver is assigned a second state when the behavior exceeds the threshold. The received signals are received and processed using the set of transmission parameters associated with the second state.

Claims

1. A method of determining transmission parameters for a wireless communication transceiver, comprising:

loading a state table into a transceiver that includes a plurality of states, each of the plurality of states having a set of transmission parameters associated therewith;

receiving signals from a signal source;

based upon characteristics of the received signals, assigning to the transceiver a first one of the plurality of states;

receiving and processing the received signals using the set of transmission parameters associated with the first one of the plurality of states;

observing a behavior of the received signals;

determining whether the behavior exceeds a threshold associated with the first one of the plurality of states;

assigning to the transceiver a second one of the plurality of states when the behavior exceeds the threshold; and

receiving and processing the received signals using the set of transmission parameters associated with the second one of the plurality of states;

wherein the assigning the second one of the plurality of states operates to change at least one of signal transmission rate and transmission power used with the received signals;

wherein the state table is a first state table configured for use with a first type of signal, and further including a second loadable state table configured for use with a second type of signal, the method further including;

assigning to the transceiver one of the plurality of states from the first state table when the received signals are the first type of signal; and

assigning to the transceiver one of a plurality of states from the second state table when the received signals are the second type of signal.

2. The method of claim 1, wherein the behavior is a signal-to-noise ratio of the received signals.

3. The method of claim 2, wherein the determining step factors in an amount of variance, over time, of the signal-to-noise ratio when determining whether the signal-to-noise ratio exceeds the threshold.

4. The method of claim 1, wherein the behavior is a symbol error rate of the received signals.

5. The method of claim 4, wherein the determining step factors in an amount of variance, over time, of the symbol error rate when determining whether the symbol error rate exceeds the threshold.

6. The method of claim 1, wherein the determining step further includes determining whether the behavior, modified by a behavior stability factor, exceeds the threshold associated with the first one of the plurality of states.

7. The method of claim 6, wherein the behavior stability factor is a time-based, weighted mean deviation of the observed behavior.

8. The method of claim 1, wherein the first set of transmission parameters includes a factor expressing how many times a transceiver in a network repeats a transmission of a signal, wherein the transmission is transmitted on at least one frequency.

9. The method of claim 1, wherein the first set of transmission parameters includes a factor expressing a forward error correction rate.

10. The method of claim 1, wherein the first set of transmission parameters includes a type of modulation to be used with the received signals.

11. The method of claim 1, wherein the transceiver is a node in a network of a plurality of nodes, and further wherein the determining step includes factoring in how many transmissions the transceiver is required to transmit.

12. The method of claim 11, wherein the determining step further includes factoring in a received signal strength.

14. The method of claim 1, wherein the states in the state table are defined such that a threshold from one of the states overlaps a threshold from another of the states.

13. A method of determining transmission parameters for a wireless communication transceiver, comprising:

loading a state table into a transceiver that includes a plurality of states, each of the plurality of states having a set of transmission parameters associated therewith;

receiving signals from a signal source;

based upon characteristics of the received signals, assigning to the transceiver a first one of the plurality of states;

receiving and processing the received signals using the set of transmission parameters associated with the first one of the plurality of states;

observing a behavior of the received signals;

determining whether the behavior exceeds a threshold associated with the first one of the plurality of states;

assigning to the transceiver a second one of the plurality of states when the behavior exceeds the threshold;

receiving and processing the received signals using the set of transmission parameters associated with the second one of the plurality of states;

wherein the assigning the second one of the plurality of states operates to change at least one of signal transmission rate and transmission power used with the received signals; and

wherein the state table is a first state table configured for use with a first transmission scenario, and further including a second loadable state table configured for use with a second transmission scenario, the method further including assigning to the transceiver one of the plurality of states from the first state table when the transceiver determines the presence of the first transmission scenario, and assigning to the transceiver one of a plurality of states from the second state table when the transceiver determines the presence of the second transmission scenario.

15. A method of determining transmission parameters for a wireless communication transceiver, comprising:

loading a state table into a transceiver that includes a plurality of states, each of the plurality of states having a set of transmission parameters associated therewith;

receiving signals from a signal source;

based upon characteristics of the received signals, assigning to the transceiver a first one of the plurality of states;

receiving and processing the received signals using the set of transmission parameters associated with the first one of the plurality of states;

observing a behavior of the received signals;

determining whether the behavior exceeds a threshold associated with the first one of the plurality of states;

assigning to the transceiver a second one of the plurality of states when the behavior exceeds the threshold;

receiving and processing the received signals using the set of transmission parameters associated with the second one of the plurality of states;

wherein the assigning the second one of the plurality of states operates to change at least one of signal transmission rate and transmission power used with the received signals; and

wherein the state table is a first state table configured to maximize signal transmission rate of the transceiver, and further including a second loadable state table configured to maximize efficient transmit power use of the transceiver, the method further including

assigning to the transceiver one of the plurality of states from the first state table when it is desired to maximize the signal transmission rate of the transceiver, wherein the transceiver is directed to use successive others of the plurality of states to increase transmit power until a maximum transmit rate is achieved; and

assigning to the transceiver one of a plurality of states from the second state table when it is desired to maximize efficient transmit power use of the transceiver, wherein the transceiver is directed to use successive others of the plurality of states to maintain a transmit power level when said transceiver has communicated with all neighboring transceivers with which said transceiver is required to communicate.