Message control protocol in a communications network having repeaters

• US 7,746,804 B1
• Filed: 09/13/2006
• Issued: 06/29/2010
• Est. Priority Date: 03/21/2002
• Status: Expired due to Term

• Current Assignee: Ax Wireless LLC (SY Ventures)
• Original Assignee: Inovonics Corp. (Roper Technologies, Inc.)
• Inventors: Pierce, Preston, Shurmantine, Neal, Koonce, Steve, Hume, Donald J., Koonce, Nathan, Burkhard, Daryl, Dunbar, Steven T.
• Primary Examiner(s): Pham; Chi H
• Assistant Examiner(s): HYUN, SOON D
• Application Number:
  US11/531,627
• Time in Patent Office: 1,385 Days
• Field of Search: None
• US Class Current: 370/252
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04L 45/26 Route discovery packet
• CPC Class Codes: H04W 40/08 based on transmission power
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A wireless communications network which provides directed transmissions between components of the network is provided. The components within the wireless communications include a master apparatus, a plurality of remote devices, and a plurality of repeaters. The components within the wireless communications network communicate using messages which have a control field and at least one information field. Information within the control field is used by components to make determinations for retransmitting the message, or transmitting a predefined response to the message, such as a signal strength response. The components within the network use the messages to make a determination of a communications target, which may be used as a primary contact for transmitting information, automatically, and may repeat the determination at predetermined intervals. Thus, the wireless communications network is able to adapt over time to additional components added into the network, or changing environmental conditions in and around the network.

Claims

1. A wireless communications system, comprising:

a master apparatus having a memory to store program information and data information,

a processor in communication with said memory to form a first message and receive a second message, said first message transmitted from a transceiver in communication with said processor, and said second message received by said transceiver;

at least one remote device having a remote memory to store program information and data information, a remote processor in communication with said remote memory to form a fourth message and receive a third message, said fourth message transmitted and said third message received by a remote transceiver in communication with said remote processor, and to transmit and receive said fourth and third messages respectively; and

at least one repeater having a repeater memory to store program information and data, a repeater processor in communication with said repeater memory to form said third message and receive said first message, said third transmitted message transmitted and said first message received by a repeater transceiver in communication with said repeater processor and to transmit and receive messages,

wherein each of said messages includes a control field and a plurality of information fields, said control field having a plurality of control bits including at least a first control bit indicative of whether data is contained in an information field and at least a second control bit indicative of a direction of transmission for said message;

wherein said repeater processor determines if said first message is to be re-transmitted as said third message based on information contained in said control field of said first message.

2. A system, as claimed in claim 1, wherein:

said control field includes a survey bit that indicates, when said survey bit is in a predetermined state, one of said information fields includes information related to signal strength.

3. A system, as claimed in claim 1, wherein:

said control field includes a layer bit that indicates, when said layer bit is in a predetermined state, one of said information fields includes information related to a layer of said first message and a number of times said first message has been retransmitted.

4. A system, as claimed in claim 1, wherein:

said control field includes an address bit that indicates, when said address bit is in a predetermined state, one of said information fields includes identification information of said at least one remote device to which said first message is to be delivered.

5. A system, as claimed in claim 1, wherein:

said control field includes a trace bit that indicates, when said trace bit is in a predetermined state, one of said information fields includes information related to a number of addresses and identification information related to where said first message has been sent.

6. A system, as claimed in claim 1, wherein:

said control fields includes a control bit indicating whether said first message is to be retransmitted.

7. A system, as claimed in claim 1, wherein:

said at least one remote device sets said at least one repeater as its primary contact using signal strength.

8. A system, as claimed in claim 1, wherein:

said at least one remote device determines that said at least one repeater is its primary contact based on using a plurality of repeaters including said at least one repeater.

9. A system, as claimed in claim 1, wherein:

said first message includes network identification information that is used to differentiate the wireless communication system from another system that does not include said at least one remote device and said at least one repeater.

23. The wireless communications system of claim 1

wherein said at least one repeater forms said second message and receives said fourth message, wherein said repeater processor is determines if said forth message is to be re-transmitted as said second message based on information contained in said control field of said forth message.

10. A method for configuring a wireless communications network, comprising:

providing a plurality of remote devices including a first remote device, a plurality of repeaters including a first repeater, and a master apparatus; and

selecting said first repeater as a communications target by said first remote device based in part on signal strength associated with at least one signal from said first repeater

wherein;

said selecting step includes transmitting a message from said first remote device and receiving at said first remote device response messages responsive to said message indicative of signal strength from at least some of said plurality of repeaters.

11. A method, as claimed in claim 10, wherein:

said selecting step includes ascertaining by said first remote device information related to desired signal strength.

12. A method, as claimed in claim 11, wherein:

said desired signal strength relates to a greatest signal strength based on a number of response messages from at least said first repeater and said greatest signal strength is based on at least one of;

noise, gain and amplitude.

13. A method, as claimed in claim 10, wherein:

said selecting step includes setting said first repeater as said communications target.

14. A method, as claimed in claim 10, further including:

repeating, at desired time intervals, said determining step.

15. A method, as claimed in claim 10, wherein:

first information related to said signal strength was previously stored in memory and said selecting step includes obtaining said first information from said memory.

16. A method, as claimed in claim 15, further including:

determining a second repeater as a communications target using second information previously stored in said memory related to signal strength, said second repeater communicating with said first repeater when transmitting a packet to said first remote device using said first repeater.

17. A method, as claimed in claim 10, wherein:

said selecting step includes establishing a sign-on threshold and a neighbor maintenance threshold and ascertaining said signal strength exceeds at least said sign-on threshold.

18. A method, as claimed in claim 17, wherein:

said ascertaining step includes ascertaining if said signal strength exceeds said neighbor maintenance threshold.

19. A method, as claimed in claim 17, wherein:

said ascertaining step includes ascertaining if said signal strength exceeds a valid signal for decoding threshold.

20. A method, as claimed in claim 10, wherein said determining step includes:

associating said first repeater as a primary neighbor when said signal strength exceeds a sign-on threshold;

ascertaining later that said signal strength exceeds a neighbor maintenance threshold, but does not exceed said sign-on threshold; and

maintaining said first repeater as a primary neighbor after said ascertaining step.

21. A method, as claimed in claim 10, wherein said determining steps includes:

associating said first repeater as a primary neighbor when said signal strength exceeds a sign-on threshold;

ascertaining after said associating step that said signal strength does not exceed said sign-on threshold and does not exceed a neighbor maintenance threshold; and

removing said first repeater as a primary neighbor.

22. A method, as claimed in claim 20, wherein:

said associating step includes identifying said first repeater as a primary neighbor of said first remote device.