| 摘要 |
Various embodiments include apparatus, systems, and methods including an apparatus comprising a remote operable to receive a non-radio frequency beacon signal, the non-radio frequency beacon signal transmitted within and contained substantially within an approximate line-of-sight transmission space, the non-radio frequency beacon signal including at least one channel information portion, wherein the channel information portion includes information indicating a radio frequency, the remote operable to establish bi-directional communications using the radio frequency designated by the at least one channel information portion.
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