| 主权项 |
1. A method for determining an access point among a plurality of wireless communications devices each having an access point function in a wireless network, the method comprising:
(a) exchanging intent values and pieces of power supply status information between two wireless communications devices that form the wireless network, each wireless communications device storing the intent value indicating a level of intention to serve as the access point specified on the basis of a certain criterion and the piece of power supply status information indicating whether power is supplied to the each wireless communications device from an alternating-current (AC) power supply; and (b) determining, by each wireless communications device, the access point on the basis of both of the intent values and both of the pieces of power supply status information of the wireless communications devices, wherein said determining in (b) includes performing, by each wireless communications device, each of the following (b1), (b2) and (b3): (b1) determining a magnitude relationship between both of the intent values; (b2) determining the wireless communications device having a larger intent value as the access point, in a case that it is determined in (b1) that the intent values are not equal to each other; and (b3) determining the wireless communications device the power of which is supplied from the AC power supply as the access point, in a case that it is determined in (b1) that the intent values are equal to each other wherein the exchanging in (a) includes performing each of the following (a1) and (a2) (a1) by one of the wireless communications devices, requesting the intent value and the piece of power supply status information, from the other wireless communications device, and notifying the other wireless communications device of the intent value and the piece of power supply status information of the one wireless communications device; and (a2) by the other wireless communications device, transmitting the intent value and the piece of power supply status information in response to the request of the one wireless communications device; wherein the method further comprises: (c) increasing the intent value of the one wireless communications device when the power is supplied from the AC power supply to the one wireless communications device before the one wireless communications device starts the requesting in (a1); (d) increasing the intent value of the other wireless communications device when the power is supplied from the AC power supply to the other wireless communications device before the other wireless communications device starts the transmitting in (a2); (e) decreasing the intent value of the one wireless communications device when the power is not supplied from the AC power supply to the one wireless communications device before the one wireless communications device starts the requesting in (a1); and (f) decreasing the intent value of the other wireless communications device when the power is not supplied from the AC power supply to the other wireless communications device before the other wireless communications device starts the transmitting in (a2). |
