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US 10,312,982 B2Granted
Base station, mobile station and radio communication method
AssigneeNtt Docomo, Inc.
InventorsSatoshi Nagata, Chongning Na, Huiling Jiang, Yuichi Kakishima
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Abstract
To generate a configuration entry in a master codebook. A base station according to one aspect of the present invention includes a codebook generating unit that determines a codebook subset corresponding to a predetermined configuration entry from a plurality of configuration entries in a master codebook, and a transmitter that transmits information of the predetermined configuration entry.
Claims4
A base station comprising:
- a codebook generating unit that determines a codebook subset corresponding to one configuration entry from a plurality of configuration entries in a master codebook;
- and
- a transmitter that transmits information of the one configuration entry,
- wherein the plurality of configuration entries comprise four configuration entries,
- a first configuration entry corresponds to a beam pattern in which an available beam is (0, 0),
- a second configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (0, 1), (1, 1),
- a third configuration entry corresponds to a beam pattern in which available beams are (0, 1), (1, 1), (2, 0), (3, 0), and
- a fourth configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (2, 0), (3, 0),
- where in (x, y), x indicates a relative index in a first direction and y indicates a relative index in a second direction.
6 more elements
A mobile station comprising:
- a receiver that receives information of one configuration entry;
- and
- a codebook generating unit that determines a codebook subset corresponding to the one configuration entry from a plurality of configuration entries in a master codebook,
- wherein the plurality of configuration entries comprise four configuration entries,
- a first configuration entry corresponds to a beam pattern in which an available beam is (0, 0),
- a second configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (0, 1), (1, 1),
- a third configuration entry corresponds to a beam pattern in which available beams are (0, 1), (1, 1), (2, 0), (3, 0), and
- a fourth configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (2, 0), (3, 0),
- where in (x, y), x indicates a relative index in a first direction and y indicates a relative index in a second direction.
6 more elements
A radio communication method comprising:
- determining a codebook subset corresponding to one configuration entry from a plurality of configuration entries in a master codebook;
- and
- transmitting information of the one configuration entry,
- wherein the plurality of configuration entries comprise four configuration entries,
- a first configuration entry corresponds to a beam pattern in which an available beam is (0, 0),
- a second configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (0, 1), (1, 1),
- a third configuration entry corresponds to a beam pattern in which available beams are (0, 1), (1, 1), (2, 0), (3, 0), and
- a fourth configuration entry corresponds to a beam pattern in which available beams are (0, 0), (1, 0), (2, 0), (3, 0),
- where in (x, y), x indicates a relative index in a first direction and y indicates a relative index in a second direction.
6 more elements
Dependencies are inferred from the claim text.