SERVICE DISCOVERY USING A LOCATION DATABASE

• US 20160150029A1
• Filed: 11/26/2014
• Published: 05/26/2016
• Est. Priority Date: 11/26/2014
• Status: Abandoned Application

• Current Assignee: Avaya Incorporated
• Original Assignee: Avaya Incorporated
• Inventors: MUNIRAJAIAH, Poornima, SIDDEGOWADA, Pavan Kumar Chikmagalur, ATREYA, Vivek L., ANKAIAH, Shashi Hosakere
• Application Number:
  US14/555,313
• Publication Number:
  US 20160150029A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/2228 Indexing structures
• CPC Class Codes: G06F 16/285 Clustering or classification
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4541 Directories for service discovery
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services

Abstract

Methods, systems and computer readable media for building and using a location database for service discovery are described. In some implementations, the method can include detecting, at a location engine, a connection between a client and a new service within a wireless network, and receiving an RF fingerprint of the client. The method can also include determining a location of the client and the new service based on the RF fingerprint, and querying a location database using the RF fingerprint as a key. The method can further include determining whether a location database entry exists corresponding to the RF fingerprint. The method can also include, when there is no database entry corresponding to the RF fingerprint, adding a new record to the database corresponding to the RF fingerprint and the new service. The method can further include, when there is database entry corresponding to the RF fingerprint, computing a rank for the new service and updating the database entry corresponding to the RF fingerprint corresponding to the RF fingerprint.

Claims

1. A method comprising:

detecting, at a location engine, a connection between a client and a new service within a wireless network;

receiving an RF fingerprint of the client;

determining a location of the client and the new service based on the RF fingerprint;

querying a location database using the RF fingerprint as a key;

determining whether a location database entry exists corresponding to the RF fingerprint;

when there is no database entry corresponding to the RF fingerprint, adding a new record to the database corresponding to the RF fingerprint and the new service; and

when there is database entry corresponding to the RF fingerprint, computing a rank for the new service and updating the database entry corresponding to the RF fingerprint corresponding to the RF fingerprint.

2. The method of claim 1, further comprising:

searching the location database using the RF fingerprint and a service type as a key value;

computing a distance between the RF fingerprint and each stored RF fingerprint of a corresponding record in the location database;

comparing each computed distance with a given distance threshold value, and, when the computed distance is within a given value, adding the corresponding record to a result set;

selecting a given number of records from the result set based on the computed distance; and

providing, from the location engine, the given number of records to a gateway system.

3. The method of claim 2, further comprising:

determining, at the gateway system, one or more service records corresponding to the given number of records from the location engine; and

providing the one or more service records to a client device.

4. The method of claim 1, wherein the RF fingerprint includes an RSSI fingerprint.

5. The method of claim 2, wherein the gateway system is an mDNS gateway system.

6. The method of claim 3, wherein the one or more service records include mDNS records.

7. A system comprising one or more processors configured to perform operations including:

detecting, at a location engine, a connection between a client and a new service within a wireless network;

receiving an RF fingerprint of the client;

determining a location of the client and the new service based on the RF fingerprint;

querying a location database using the RF fingerprint as a key;

determining whether a location database entry exists corresponding to the RF fingerprint;

when there is no database entry corresponding to the RF fingerprint, adding a new record to the database corresponding to the RF fingerprint and the new service; and

when there is database entry corresponding to the RF fingerprint, computing a rank for the new service and updating the database entry corresponding to the RF fingerprint corresponding to the RF fingerprint.

8. The system of claim 7, wherein the operations further comprise:

searching the location database using the RF fingerprint and a service type as a key value;

computing a distance between the RF fingerprint and each stored RF fingerprint of a corresponding record in the location database;

comparing each computed distance with a given distance threshold value, and, when the computed distance is within a given value, adding the corresponding record to a result set;

selecting a given number of records from the result set based on the computed distance; and

providing, from the location engine, the given number of records to a gateway system.

9. The system of claim 8, wherein the operations further comprise:

determining, at the gateway system, one or more service records corresponding to the given number of records from the location engine; and

providing the one or more service records to a client device.

10. The system of claim 7, wherein the RF fingerprint includes an RSSI fingerprint.

11. The system of claim 8, wherein the gateway system is an mDNS gateway system.

12. The system of claim 9, wherein the one or more service records include mDNS records.

13. A nontransitory computer readable medium having stored thereon software instructions that, when executed by one or more processors, cause the one or more processors to perform operations including:

detecting, at a location engine, a connection between a client and a new service within a wireless network;

receiving an RF fingerprint of the client;

determining a location of the client and the new service based on the RF fingerprint;

querying a location database using the RF fingerprint as a key;

determining whether a location database entry exists corresponding to the RF fingerprint;

when there is no database entry corresponding to the RF fingerprint, adding a new record to the database corresponding to the RF fingerprint and the new service; and

when there is database entry corresponding to the RF fingerprint, computing a rank for the new service and updating the database entry corresponding to the RF fingerprint corresponding to the RF fingerprint.

14. The nontransitory computer readable medium of claim 13, wherein the operations further comprise:

searching the location database using the RF fingerprint and a service type as a key value;

computing a distance between the RF fingerprint and each stored RF fingerprint of a corresponding record in the location database;

comparing each computed distance with a given distance threshold value, and, when the computed distance is within a given value, adding the corresponding record to a result set;

selecting a given number of records from the result set based on the computed distance; and

providing, from the location engine, the given number of records to a gateway system.

15. The nontransitory computer readable medium of claim 14, wherein the operations further comprise:

determining, at the gateway system, one or more service records corresponding to the given number of records from the location engine; and

providing the one or more service records to a client device.

16. The nontransitory computer readable medium of claim 13, wherein the RF fingerprint includes an RSSI fingerprint.

17. The nontransitory computer readable medium of claim 14, wherein the gateway system is an mDNS gateway system.

18. The nontransitory computer readable medium of claim 15, wherein the one or more service records include mDNS records.