Patent ID: 9124359
Filing Date: 2015-09-01
Classification: H04B,H04W

Abstract:
1. A method for transmitting a beacon signal, comprising: generating a beacon frame to be transmitted in a beacon period, the beacon period beginning at a beacon period reoccurring time, the beacon frame comprising a beacon shifting sequence identifier and a beacon shifting sequence phase, the beacon shifting sequence identifier indicating a specific beacon shifting sequence comprising a repeating series of beacon transmission time offsets, and the beacon shifting sequence phase indicating a current position within the beacon shifting sequence; determining a current beacon shifting sequence for the beacon frame; determining the beacon shifting sequence phase for the beacon frame; determining a current beacon transmission time offset corresponding to the beacon shifting sequence phase; and transmitting the beacon frame at a time delayed after the beacon period reoccurring time by the current beacon transmission time offset; monitoring beacon frame transmissions by another device, and selecting a current beacon shifting sequence phase that is different from the active beacon shifting sequence phase; and transmitting the beacon frame at a time delayed after the beacon period reoccurring time by a beacon transmission time offset corresponding to the current beacon shifting sequence phase.