US 12,720,592 B2Granted

Communication device and communication method

AssigneeSony Group Corporation

InventorsShigeru Sugaya, Yusuke Tanaka, Ken Tanaka, Ryuichi Hirata

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Abstract

A communication device that performs multi-link and multi-user communication is provided. A communication device includes a communication unit capable of wirelessly communicating on a plurality of links, a communication processing unit that performs processing of simultaneously receiving data from a plurality of transmission-side communication devices, and a control unit that performs control to receive data using an optimum link from each of the plurality of transmission-side communication devices. The control unit transmits a trigger request signal for requesting information regarding a transmission opportunity from the plurality of transmission-side communication devices on a link on which a reception opportunity has been acquired, and determines an optimum link for each transmission-side communication device on the basis of a request response signal from the plurality of transmission-side communication devices.

Claims20

Dependent claims

A wireless communication device, comprising:

circuitry configured to:
identify, to perform uplink transmission on a first link, a first subset of wireless communication devices from at least one of a first set of wireless communication devices or a second set of wireless communication devices, wherein
each of the first set of wireless communication devices and the second set of wireless communication devices is different from the wireless communication device;
identify, to perform uplink transmission on a second link, a second subset of wireless communication devices from the at least one of the first set of wireless communication devices or the second set of wireless communication devices;
notify, via the first link, the first subset of wireless communication devices of an allocation of a first transmission resource;
notify, via the second link, the second subset of wireless communication devices of an allocation of a second transmission resource;
control simultaneous reception of data from each of the first subset of wireless communication devices and the second subset of wireless communication devices;
control transmission of a first response to the first subset of wireless communication devices via the first link;
and
control transmission of a second response to the second subset of wireless communication devices via the second link.

7 more elements

A wireless communication method, comprising:

in a wireless communication device:
identifying, to perform uplink transmission on a first link, a first subset of wireless communication devices from at least one of a first set of wireless communication devices or a second set of wireless communication devices, wherein
each of the first set of wireless communication devices and the second set of wireless communication devices is different from the wireless communication device;
identifying, to perform uplink transmission on a second link, a second subset of wireless communication devices from the at least one of the first set of wireless communication devices or the second set of wireless communication devices;
notifying, via the first link, the first subset of wireless communication devices of an allocation of a first transmission resource;
notifying, via the second link, the second subset of wireless communication devices of an allocation of a second transmission resource;
controlling simultaneous reception of data from the first subset of wireless communication devices and the second subset of wireless communication devices;
controlling transmission of a first response to the first subset of wireless communication devices via the first link;
and
controlling transmission of a second response to the second subset of wireless communication devices via the second link.

7 more elements

A wireless communication system, comprising:

a wireless communication device that includes circuitry;
a first set of wireless communication devices;
and
a second set of wireless communication devices, wherein
each of the first set of wireless communication devices and the second set of wireless communication devices is different from the wireless communication device, and
the circuitry is configured to:
identify, to perform uplink transmission on a first link, a first subset of wireless communication devices from at least one of the first set of wireless communication devices or the second set of wireless communication devices;
identify, to perform uplink transmission on a second link, a second subset of wireless communication devices from the at least one of the first set of wireless communication devices or the second set of wireless communication devices;
notify, via the first link, the first subset of wireless communication devices of an allocation of a first transmission resource;
notify, via the second link, the second subset of wireless communication devices of an allocation of a second transmission resource;
control simultaneous reception of data from each of the first subset of wireless communication devices and the second subset of wireless communication devices;
control transmission of a first response to the first subset of wireless communication devices via the first link;
and
control transmission of a second response to the second subset of wireless communication devices via the second link.

11 more elements

Dependencies are inferred from the claim text.