| 摘要 |
A distributed reservation protocol for medium access control in a multiband OFDM ultrawideband communications network having a band group comprising a plurality of transmission bands, a device in said network having a mode in which it uses a selected one of said bands to communicate, and a band hopping mode, and wherein the protocol comprises allowing a device in a group of devices to make a combined time-frequency reservation, said time-frequency reservation comprising a reservation of a combination of a subset of said bands in a said band group and one or more data communications timeslots in which the device is allowed to use said reserved band for data communications such that multiple said devices in said group are able simultaneously to use one or more of the same or overlapping said reserved timeslots in different reserved frequency bands of said band group.
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