Patent ID: 9578722
Date: 2017-02-21
CPC Classifications: G08C,H04W,H05B

Claim:
1. A method, implemented in a given device and a wireless controller that performs a selection process, comprising the steps of: i. receiving, at the given device, a probe message from the wireless controller, and obtaining, based on the probe message, relative position information of the given device with respect to the wireless controller; ii. determining, at the given device, a response time to send a given device response signal to the message according to a first predefined rule based on the relative position information of the given device; iii. receiving, at the wireless controller, a response signal from at least one other device, wherein the response signal from the at least one other device contains the relative position information of the at least one other device; iv. detecting, at the given device, the response signal from the at least one other device before expiration of the response time; and v. deciding, at the given device, whether to send or not to send the given device response signal by: retrieving the relative position information contained in the at least one received response signal from the at least one other device; comparing the relative position information of the at least one other device to the relative position information of the given device, wherein the given device response signal contains the relative position information of the given device; and sending the given device response signal only if the at least one other device's distance to the wireless controller is greater than the distance of the given device to the wireless controller.