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US 12,641,615 B2Granted
Terminal device, base station apparatus, and communication method
AssigneeSony Group Corporation
InventorsNaoki Kusashima, Ken Tanaka, Hiroki Matsuda, Shinichiro Tsuda
Life of this patent
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Abstract
A terminal device (2) according to the present disclosure includes a control unit (203). The control unit (203) acquires, from a base station apparatus (1), information about a signal waveform for use, of a plurality of signal waveforms including a single carrier signal, the signal waveform for use being used for downlink communication with the base station apparatus (1), the information being transmitted by using a predetermined signal waveform of the plurality of signal waveforms. The control unit (203) performs the downlink communication with the base station apparatus (1) by using the signal waveform for use, on the basis of the information.
Claims11
A terminal device comprising
- a transceiver;
- and
- control circuitry configured to perform an operation, the operation comprising:
- receiving, from a base station, a downlink communication via a multicarrier signal;
- acquiring, from the base station, information for switching from the multicarrier signal to a specific single carrier, the specific single carrier being one of a plurality of single carriers, the information for the switching being received from the base station via a predetermined single carrier of the plurality of single carriers that is different from the specific single carrier and that is defined for, and thereby implicitly identifies, the specific single carrier, and
- based on the information for the switching, switching from the multicarrier signal to the specific single carrier and receiving the downlink communication from the base station via the specific single carrier,
- wherein the plurality of single carriers respectively corresponds to a plurality of synchronization signal sequences, and the received predetermined single carrier that is defined for, and thereby implicitly identifies, the specific single carrier is a waveform of a specific synchronization signal sequence of the plurality of synchronization signal sequences, and
- wherein the information for the switching is implicitly indicated by a configuration of the specific synchronization signal sequence which has been provided to the communication apparatus in advance.
5 more elements
A base station apparatus comprising:
- a transceiver;
- and
- control circuitry configured to perform an operation, the operation comprising:
- transmitting, to a terminal device, a downlink communication via a multicarrier signal;
- determining to switch from the multicarrier signal to a specific single carrier that is to be used by the terminal device for the downlink communication;
- transmitting, to the terminal device, information for the switching from the multicarrier signal to the specific single carrier, the specific single carrier being one of a plurality of single carriers, the information for the switching being transmitted to the terminal device via a predetermined single carrier of the plurality of single carriers that is different from the specific single carrier and that is defined for, and thereby implicitly identifies, the specific single carrier;
- and
- based on the information for the switching, switching from the multicarrier signal to the specific single carrier and transmitting the downlink communication to the terminal device via the specific single carrier,
- wherein the plurality of single carriers respectively corresponds to a plurality of synchronization signal sequences, and the received predetermined single carrier that is defined for, and thereby implicitly identifies, the specific single carrier is a waveform of a specific synchronization signal sequence of the plurality of synchronization signal sequences, and
- wherein the information for the switching is implicitly indicated by a configuration of the specific synchronization signal sequence which has been provided to the communication apparatus in advance.
7 more elements
A communication method performed by a terminal device, the communication method comprising:
- receiving, from a base station, a downlink communication via a multicarrier signal;
- acquiring, from the base station, information for switching from the multicarrier signal to a specific single carrier, the specific single carrier being one of a plurality of single carriers, the information for the switching being received from the base station via a predetermined single carrier of the plurality of single carriers that is different from the specific single carrier and that is defined for, and thereby implicitly identifies, the specific single carrier, and
- based on the information for the switching, switching from the multicarrier signal to the specific single carrier and receiving the downlink communication from the base station via the specific single carrier,
- wherein the plurality of single carriers respectively corresponds to a plurality of synchronization signal sequences, and the received predetermined single carrier that is defined for, and thereby implicitly identifies, the specific single carrier is a waveform of a specific synchronization signal sequence of the plurality of synchronization signal sequences, and
- wherein the information for the switching is implicitly indicated by a configuration of the specific synchronization signal sequence which has been provided to the communication apparatus in advance.
2 more elements
A communication method performed by a base station device, the communication method comprising:
- transmitting, to a terminal device, a downlink communication via a multicarrier signal;
- determining to switch from the multicarrier signal to a specific single carrier that is to be used by the terminal device for the downlink communication;
- transmitting, to the terminal device, information for the switching from the multicarrier signal to the specific single carrier, the specific single carrier being one of a plurality of single carriers, the information for the switching being transmitted to the terminal device via a predetermined single carrier of the plurality of single carriers that is different from the specific single carrier and that is defined for, and thereby implicitly identifies, the specific single carrier;
- and
- based on the information for the switching, switching from the multicarrier signal to the specific single carrier and transmitting the downlink communication to the terminal device via the specific single carrier,
- wherein the plurality of single carriers respectively corresponds to a plurality of synchronization signal sequences, and the received predetermined single carrier that is defined for, and thereby implicitly identifies, the specific single carrier is a waveform of a specific synchronization signal sequence of the plurality of synchronization signal sequences, and
- wherein the information for the switching is implicitly indicated by a configuration of the specific synchronization signal sequence which has been provided to the communication apparatus in advance.
4 more elements
Dependencies are inferred from the claim text.