US 12,598,019 B2Granted

Receiving apparatus and receiving method

AssigneeNTT, Inc.

InventorsTakahiro Suzuki, Sang-Yuep Kim

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Abstract

A reception device includes: a polarization separating unit configured to perform polarization-separation on reception signals respectively corresponding to an X-polarized wave a the Y-polarized wave, output from a receiving unit; a first signal decoding unit configured to decode a single-sequence transmission signal from the given reception signals; a second signal decoding unit configured to decode a two-sequence transmission signal from the given reception signals; and a reception signal comparison unit configured to determine whether change patterns in the reception signals respectively corresponding to the X-polarized wave and the Y-polarized wave separated by the polarization separating unit are similar to each other, output the reception signals obtained by polarization-separation by the polarization separating unit to the first signal decoding unit in a case where the change patterns are similar to each other, and output the reception signals obtained by polarization-separation by the polarization separating unit to the second signal decoding unit in a case where the change patterns are not similar to each other.

Claims8

Dependent claims

A reception device, comprising:

a receiver configured to receive a signal in which an X-polarized wave and a Y-polarized wave are polarization-multiplexed, convert the received signal into reception signals respectively corresponding to the X-polarized wave and the Y-polarized wave, and outputs the reception signals;
a polarization separator configured to perform polarization-separation on the reception signals respectively corresponding to the X-polarized wave and the Y-polarized wave, output from the receiver;
a first signal decoder configured to decode a single-sequence transmission signal from the given reception signals;
a second signal decoder configured to decode a two-sequence transmission signal from the given reception signals;
and
a reception signal comparer configured to determine whether change patterns in the reception signals respectively corresponding to the X-polarized wave and the Y-polarized wave separated by the polarization separator are similar to each other, output the reception signals obtained by polarization-separation by the polarization separator to the first signal decoder in a case where the change patterns are similar to each other, and output the reception signals obtained by polarization-separation by the polarization separator to the second signal decoder in a case where the change patterns are not similar to each other.

3 more elements

Dependencies are inferred from the claim text.