Granted Patent B2

US 9,258,694 · App. 13/747,836 · Granted Feb 9, 2016

Abstract

Claims (42)

1. A method, comprising:

detecting a wireless device discovery message at an apparatus; and

in response to detecting the wireless device discovery message, temporarily tuning, by the apparatus, device discovery parameters to increase a rate of detecting wireless device discovery messages;

wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages by at least one of reducing an inquiry scan interval, increasing an inquiry scan window duration, and performing interlaced inquiry scanning.

2. The method of claim 1 , further comprising:

determining, by the apparatus, that the wireless device discovery message meets a predefined criterion to temporarily tune the device discovery parameters to increase the rate of detecting wireless device discovery messages;

wherein the predefined criterion comprises at least one of a received signal strength indication of the wireless device discovery message exceeding a threshold value, an interval since a previous increase in the rate of detecting a wireless device discovery message is greater than a first threshold interval, an interval since detecting a previous wireless device discovery message is less than a second threshold duration, and a predetermined number of previously detected one or more wireless device discovery messages is less than a threshold number.

3. The method of claim 1 , wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages for a predetermined time period after receipt of the wireless device discovery message.

4. The method of claim 1 , further comprising:

transmitting, by the apparatus, in response to detecting the wireless device discovery message, one or more wireless response messages usable for a wireless device receiving the one or more wireless response messages, to estimate a distance to the apparatus, the one or more wireless response messages including at least one of a received signal strength indication of the wireless device discovery message and an indication that the apparatus and the wireless device are in close proximity with each other.

5. The method of claim 1 , further comprising:

decreasing, by the apparatus, the rate of detecting the wireless device discovery messages in response to at least one of a received signal strength indication of the wireless device discovery message decreases below a threshold value, an interval since a previous increase in the rate of detecting wireless device discovery messages is less than a first threshold interval, an interval since detecting a previous wireless device discovery message is greater than a second threshold interval, and a predetermined number of previously detected wireless device discovery messages is greater than a threshold number.

6. An apparatus, comprising:

at least one processor;

at least one memory including computer program code;

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

detect a wireless device discovery message; and

in response to detecting the wireless device discovery message, temporarily tune device discovery parameters to increase a rate of detecting wireless device discovery messages;

wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages by at least one of reducing an inquiry scan interval, increasing an inquiry scan window duration, and performing interlaced inquiry scanning.

7. The apparatus of claim 6 , further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

determine that the wireless device discovery message meets a predefined criterion to temporarily tune the device discovery parameters to increase the rate of detecting wireless device discovery messages;

wherein the predefined criterion comprises at least one of a received signal strength indication of the wireless device discovery message exceeding a threshold value, an interval since a previous increase in the rate of detecting a wireless device discovery message is greater than a first threshold interval, an interval since detecting a previous wireless device discovery message is less than a second threshold duration, and a predetermined number of previously detected one or more wireless device discovery messages is less than a threshold number.

8. The apparatus of claim 6 , wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages for a predetermined time period after receipt of the wireless device discovery message.

9. The apparatus of claim 6 , further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

transmit, in response to detecting the wireless device discovery message, one or more wireless response messages usable for a wireless device receiving the one or more wireless response messages, to estimate a distance to the apparatus, the one or more wireless response messages including at least one of a received signal strength indication of the wireless device discovery message and an indication that the apparatus and the wireless device are in close proximity with each other.

10. The apparatus of claim 6 , further comprising:

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

decrease the rate of detecting the wireless device discovery messages in response to at least one of a received signal strength indication of the wireless device discovery message decreases below a threshold value, an interval since a previous increase in the rate of detecting wireless device discovery messages is less than a first threshold interval, an interval since detecting a previous wireless device discovery message is greater than a second threshold interval, and a predetermined number of previously detected wireless device discovery messages is greater than a threshold number.

11. A computer program product comprising computer executable program code recorded on a computer readable, non-transitory storage medium, the computer executable program code comprising:

code for detecting a wireless device discovery message at an apparatus; and

code for, in response to detecting the wireless device discovery message, temporarily tuning, by the apparatus, device discovery parameters to increase a rate of detecting wireless device discovery messages;

wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages by at least one of reducing an inquiry scan interval, increasing an inquiry scan window duration, and performing interlaced inquiry scanning.

12. The computer program product of claim 11 , further comprising:

code for determining, by the apparatus, that the wireless device discovery message meets a predefined criterion to temporarily tune the device discovery parameters to increase the rate of detecting wireless device discovery messages;

wherein the predefined criterion comprises at least one of a received signal strength indication of the wireless device discovery message exceeding a threshold value, an interval since a previous increase in the rate of detecting a wireless device discovery message is greater than a first threshold interval, an interval since detecting a previous wireless device discovery message is less than a second threshold duration, and a predetermined number of previously detected one or more wireless device discovery messages is less than a threshold number.

13. The computer program product of claim 11 , wherein the apparatus tunes the device discovery parameters to increase the rate of detecting wireless device discovery messages for a predetermined time period after receipt of the wireless device discovery message.

14. The computer program product of claim 11 , further comprising:

code for transmitting, by the apparatus, in response to detecting the wireless device discovery message, one or more wireless response messages usable for a wireless device receiving the one or more wireless response messages, to estimate a distance to the apparatus, the one or more wireless response messages including at least one of a received signal strength indication of the wireless device discovery message and an indication that the apparatus and the wireless device are in close proximity with each other.

15. The computer program product of claim 11 , further comprising:

code for decreasing, by the apparatus, the rate of detecting the wireless device discovery messages in response to at least one of a received signal strength indication of the wireless device discovery message decreases below a threshold value, an interval since a previous increase in the rate of detecting wireless device discovery messages is less than a first threshold interval, an interval since detecting a previous wireless device discovery message is greater than a second threshold interval, and a predetermined number of previously detected wireless device discovery messages is greater than a threshold number.

Assignments (12)