| 摘要 |
A method for sending messages from a particular device to one or more other devices communicants ( 300 ) uses the relative geographic location of the targeted devices as addressing criteria. The particular device forms or joins a network of potential communicants, and exchanges information to determine their relative geographic location with respect to that of the particular device ( 310, 320 ). The relative geographic location is preferably defined by a directional component and a range component. The communication device then selects for communication those devices that meet specific criteria, such as a specific direction and range, and transmits a message to the selected devices ( 330, 332, 334, 336 ).
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