Method and apparatus for providing services to a geographic area

• US 9,332,413 B2
• Filed: 10/23/2013
• Issued: 05/03/2016
• Est. Priority Date: 10/23/2013
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: Schuette, Michael A, May, Philip E, Pearce, Michael D
• Primary Examiner(s): Kincaid, Lester
• Assistant Examiner(s): Lafontant, Gary
• Application Number:
  US14/060,721
• Publication Number:
  US 20150111516A1
• Time in Patent Office: 923 Days
• Field of Search: 455/404.1, 709/227, 709/209
• US Class Current: 1/1
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Abstract

A method and apparatus for providing a service at an incident scene is provided herein. During operation, a device will enter a geographic area (e.g., an incident scene), join a local-area network (LAN), and determine what services are presently being offered by other devices on the LAN. From a list of services deployed on the device, a determination is then made as to what services the device will run, and those services are then offered to all devices on the LAN.

Claims

1. A method for a computing device to offer a particular service to a Local Area Network (LAN), the method comprising the steps of:

determining, by the computing device, a set of application layer services deployed at the computing device;

determining, by the computing device, a number (T) of other computing devices within the LAN running and offering the particular application layer service;

determining, by the computing device, a number (C) of the other computing devices within the LAN that are capable of running and offering the particular application layer service, but currently are not;

determining, by the computing device, a number (R) being a desired degree of replication of the particular application layer service in the LAN; and

determining, by the computing device, whether to start, cease, or continue to offer the particular application layer service to the other computing devices on the LAN based on R, T, and C.

2. The method of claim 1, wherein the particular application layer service is started by the computing device only when U<

X, where U is a total number of application layer services running on the computing device, and X is a total number of application layer services that could run simultaneously on the wireless computing device and the computing device is currently not running and offering the particular application layer service.

3. The method of claim 2, wherein the particular application layer service is started by the computing device only when I<

=PStart and U<

X, where I is a random number i, 0<

i<

=1, and where PStart=(R−

T)/C, R is a desired degree of replication for the particular application layer service.

4. The method of claim 2, wherein the particular application layer service is ceased if I<

=PStop, where I is a random number i, 0<

i<

=1, and where PStop=(T−

R)/T and the computing device is currently running the particular application layer service.

5. The method of claim 1, wherein the LAN comprises a LAN associated with a public-safety incident scene.

6. The method of claim 1, wherein the step of determining T and C comprises the step of determining T and C with via over-the-air messages transmitted from the other computing devices.

7. A computing device comprising:

a receiver receiving information from other computing devices on a local-area network (LAN); and

logic circuitry configured to;

determine a set of application layer services deployed on the computing device;

from the received information, determine a number (T) of other computing devices within the LAN running and offering a particular application layer service, determining a number (C) of the other computing devices within the LAN that are capable of running and offering the particular application layer service, but currently are not;

determine a number (R) being a desired degree of replication of the particular application layer service in the LAN; and

determine whether to start, cease, or continue to offer the particular application layer service to the other computing devices on the LAN based on R, T, and C.

8. The computing device of claim 7, wherein the particular application layer service is started by the logic circuitry only when U<

X, where U is a total number of application layer services running on the computing device, and X is a total number of application layer services that could run simultaneously on the computing device and the computing device is currently not running and offering the particular application layer service.

9. The computing device of claim 8, wherein the particular application layer service is started by the logic circuitry only when I<

=PStart and U<

X, where I is a random number i, 0<

i<

=1, and where PStart=(R−

T)/C, R is a desired degree of replication for the particular application layer service.

10. The computing device of claim 8, wherein the particular application layer service is ceased if I<

=PStop, and where PStop=(T−

R)/T and the computing device is currently running the particular application layer service.

11. The computing device of claim 7, wherein the LAN comprises a LAN associated with a public-safety incident scene.

12. The computing device of claim 7, wherein receiver receives T and C via over-the-air messages transmitted from the other computing devices.

13. A method for a computing device to cease to offer a particular service to a Local Area Network (LAN), the method comprising the steps of:

determining, by the computing device, a set of application layer services deployed at the computing device;

determining, by the computing device, a number (T) of other computing devices within the LAN running and offering the particular application layer service;

determining, by the computing device, a number (C) of the other computing devices within the LAN that are capable of running and offering the particular application layer service, but currently are not; and

determining, by the computing device, to cease to offer the particular application layer service that it was previously offering to the other computing devices on the LAN based on T and C.

14. A computing device comprising:

a receiver receiving information from other computing devices on a local-area network (LAN); and

logic circuitry configured to;

determine a set of application layer services deployed on the computing device;

from the received information, determine a number (T) of other computing devices within the LAN running and offering a particular application layer service, determining a number (C) of the other computing devices within the LAN that are capable of running and offering the particular application layer service, but currently are not; and

determine to cease to offer the particular application layer service that was previously being offered to the other computing devices on the LAN based on T and C.