Frequency division communication system
OwnerDai Kimura, Takashi Dateki +2inventors
InventorsDai Kimura, Takashi Dateki, Toshiro Sawamoto, Morihiko Minowa
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Abstract
An orthogonal frequency division communication system which enables flexible modification of the ratio of allocation between uplink and downlink transmissions, while maintaining advantages similar to those of TDD (Time Division Duplex) systems, has a base station and a plurality of mobile stations connected by uplinks and downlinks, and a plurality of mutually orthogonal frequencies are allocated, on the frequency axis and on the time axis, to the uplinks and downlinks and to the plurality of mobile stations.
Claims6
A frequency division communication system, having a base station and a mobile station connected by an uplink and a downlink, wherein two orthogonal and discrete frequencies are allocated to said uplink and said downlink.
A frequency division communication system, having a base station and a plurality of mobile stations connected by an uplink and a downlink, wherein a plurality of different frequencies are allocated, on the frequency axis and on the time axis, to said uplink and said downlink, and to said plurality of mobile stations.
Dependencies are inferred from the claim text.