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US 12,764,573 B2Granted
Terminal, base station, and radio communication method
AssigneeNtt Docomo, Inc.
InventorsHiroki Harada, Daisuke Kurita, Mayuko Okano, Satoshi Nagata, Masaya Okamura, Tomoya Ohara
Life of this patent
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Abstract
A terminal comprises: a transmission unit that transmits a reference signal used for a purpose other than a measurement related to position of terminal; and a control unit that assumes the measurement related to the position of terminal is performed using the reference signal.
Claims3
A terminal comprising:
- a transmitter that transmits a first reference signal used for a measurement related to a position of terminal and a second reference signal having a purpose different from the measurement related to the position of the terminal;
- and
- a processor that determines, based on at least one of a notification received from the base station or a specific period condition, that a base station performs the measurement related to the position of terminal using the second reference signal in addition to the first reference signal,
- wherein in response to the determination, the processor controls the transmitter to omit a part of transmission of the first reference signal, that is periodically transmitted to the base station, when the processor assumes the base station performing the measurement related to the position of terminal using the second reference signal, and
- wherein the transmitter omits the part of transmission of the first reference signal when the base station performs the measurement related to the position of terminal using the second reference signal within a transmission period of the first reference signal.
2 more elements
A base station comprising:
- a receiver that receives a first reference signal used for a measurement related to a position of a terminal and a second reference signal having a purpose different from the measurement related to the position of the terminal;
- and
- a processor that performs the measurement related to the position of the terminal using the second reference signal in addition to the first reference signal,
- wherein the processor performs the measurement related to the position of the terminal using the second reference signal without assuming reception of the first reference signal, that is periodically transmitted from the terminal, when the receiver receives the second reference signal, and
- wherein the processor performs the measurement related to the position of the terminal using the second reference signal within a transmission period of the first reference signal when the terminal omits a part of transmission of the first reference signal.
2 more elements
A radio communication method for a terminal comprising:
- transmitting, with a transmitter, a first reference signal used for a measurement related to a position of terminal and a second reference signal having a purpose different from the measurement related to the position of the terminal;
- and
- determining, with a processor, based on at least one of a notification received from the base station or a specific period condition, that a base station performs the measurement related to the position of terminal using the second reference signal in addition to the first reference signal,
- wherein in response to the determining, the processor controls the transmitter to omit a part of transmission of the first reference signal, that is periodically transmitted to the base station, when the processor assumes the base station performing the measurement related to the position of terminal using the second reference signal, and
- wherein the transmitter omits the part of transmission of the first reference signal when the base station performs the measurement related to the position of terminal using the second reference signal within a transmission period of the first reference signal.
2 more elements
Dependencies are inferred from the claim text.