Method and apparatus for enforcing tiered geographical anonymity in a mobile device

• US 9,426,776 B2
• Filed: 07/30/2014
• Issued: 08/23/2016
• Est. Priority Date: 07/30/2014
• Status: Expired due to Fees

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Inventors: Ji, Jlng, Wang, Hui, Bellamkonda, Krishna K., Robertson, Brett L., Yoshino, Hideki
• Primary Examiner(s): Kasraian, Allahyar
• Assistant Examiner(s): HANNAN, B M M
• Application Number:
  US14/446,876
• Publication Number:
  US 20160037480A1
• Time in Patent Office: 755 Days
• Field of Search: 455/456.1, 455/456.2, 455/456, 455/456.3, 455/423, 455/457, 455/561
• US Class Current: 1/1
• CPC Class Codes: H04L 63/04 for providing a confidential data exchange among entities communicating through data packet networks
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 4/025 using location based information parameters
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination

Abstract

A disclosed method of operation includes generating a first resolution geographic descriptor that identifies a first size geographic grid area. The first size geographic grid area includes a specific location identified by mobile device location data but does not identify the specific location. The method proceeds with adjusting the first resolution geographic descriptor to a second resolution geographic descriptor, by increasing or decreasing the resolution to correspondingly decrease or increase, respectively, the corresponding geographic grid area to a second size geographic grid area that includes the specific location. An information update is then sent to a server. The information update includes the second resolution geographic descriptor but does not provide the mobile device location data, in order to preserve the mobile device user'"'"'s anonymity.

Claims

1. A method comprising:

generating, by a mobile device, a first resolution geographic descriptor that identifies a first size geographic grid area comprising a specific location identified by mobile device location data;

adjusting, by the mobile device as requested by a server, the first resolution geographic descriptor to a second resolution geographic descriptor, by increasing or decreasing the resolution to correspondingly decrease or increase, respectively, the corresponding geographic grid area to a second size geographic grid area comprising the specific location;

measuring a network performance metric at the mobile device, the network performance metric including a data quality metric or a voice quality metric;

geotagging the network performance metric using the second resolution geographic descriptor; and

sending, to the server, an information update comprising the network performance metric and the second resolution geographic descriptor without providing the mobile device location data in order to perform data analysis to identify, by the server, a source of a network performance problem associated with the network performance metric.

2. The method of claim 1, further comprising:

adjusting the first resolution geographic descriptor to the second resolution geographic descriptor to meet a minimum population density of mobile devices within the second size geographic grid area.

3. The method of claim 2, further comprising:

determining the population density using historical population data.

4. The method of claim 2, further comprising:

determining that the mobile device population density within the second size geographic grid area is time dependent; and

adjusting the second resolution geographic descriptor to a third resolution geographic descriptor that identifies a third size geographic grid area comprising the specific location to meet a minimum population density of mobile devices within the third size geographic grid area.

5. The method of claim 2, further comprising:

determining that a number of radio access points within the second size geographic grid area is below a minimum allowable number; and

adjusting the second resolution geographic descriptor to a third resolution geographic descriptor that identifies a third size geographic grid area comprising the specific location to meet the minimum allowable number of radio access points within the third size geographic grid area.

6. The method of claim 1, further comprising:

receiving a request from the server to adjust the second resolution geographic descriptor to a third resolution geographic descriptor, by increasing the resolution to correspondingly decrease the corresponding geographic grid area to a third size geographic grid area based on a network exception report reporting the network performance problem; and

sending the information update comprising the performance metric and the third resolution geographic descriptor.

7. The method of claim 6, wherein sending the information update, further comprises:

sending at least one of a network ID, a cell ID, frequency and band information, or a detected radio access technology identification.

8. The method of claim 1, wherein the network performance metric comprises the data quality metric.

9. The method of claim 8, wherein the data quality metric includes or indicates a dropped call, poor data connectivity, or poor data throughput.

10. The method of claim 1, wherein the network performance metric comprises the voice quality metric, the voice quality metric including or indicating a dropped call or poor voice connectivity.

11. A mobile device, comprising:

at least one wireless network transceiver;

location detection logic;

memory; and

at least one processor, operatively coupled to the memory, to the location detection logic, and to the at least one wireless network transceiver, the at least one processor operative to;

obtain mobile device location data from the location detection logic;

generate a first resolution geographic descriptor that identifies a first size geographic grid area comprising a specific location identified by the mobile device location data;

adjust the first resolution geographic descriptor to a second resolution geographic descriptor, by increasing or decreasing the resolution to correspondingly decrease or increase, respectively, the corresponding geographic grid area to a second size geographic grid area comprising the specific location;

measure a network performance metric, the network performance metric including a data quality metric or a voice quality metric;

geotag the network performance metric using the second resolution geographic descriptor; and

send, to a server, an information update comprising the network performance metric and the second resolution geographic descriptor without providing the mobile device location data in order to perform data analysis to identify, by the server, a source of a network performance problem associated with the network performance metric.

12. The mobile device of claim 11, wherein the at least one processor is further operative to:

adjust the first resolution geographic descriptor to the second resolution geographic descriptor to meet a minimum population density of mobile devices within the second size geographic grid area.

13. The mobile device of claim 12, wherein the at least one processor is further operative to:

determine the population density using historical population data.

14. The mobile device of claim 12, wherein the at least one processor is further operative to:

determine that the mobile device population density within the second size geographic grid area is time dependent; and

adjust the second resolution geographic descriptor to a third resolution geographic descriptor that identifies a third size geographic grid area comprising the specific location to meet a minimum population density of mobile devices within the third size geographic grid area.

15. The mobile device of claim 12, wherein the at least one processor is further operative to:

determine that a number of radio access points within the second size geographic grid area is below a minimum allowable number; and

adjust the second resolution geographic descriptor to a third resolution geographic descriptor that identifies a third size geographic grid area comprising the specific location to meet the minimum allowable number of radio access points within the third size geographic grid area.

16. The mobile device of claim 11, wherein the at least one processor is further operative to:

receive a request from the server to adjust the second resolution geographic descriptor to a third resolution geographic descriptor, by increasing the resolution to correspondingly decrease the corresponding geographic grid area to a third size geographic grid area based on a network exception report reporting the network performance problem; and

send the information update to the server comprising the performance metric and the third resolution geographic descriptor.

17. The mobile device of claim 16, wherein the at least one processor is further operative to send the information update to the server, comprising at least one of a network ID, a cell ID, frequency and band information, or a detected radio access technology identification.

18. The mobile device of claim 11, wherein the network performance metric comprises the data quality metric.

19. The mobile device of claim 18, wherein the data quality metric includes or indicates a dropped call, poor data connectivity, or poor data throughput.

20. The mobile device of claim 11, wherein the network performance metric comprises the voice quality metric, the voice quality metric including or indicating a dropped call or poor voice connectivity.