Patent ID: 11950228
Assignee: SHARP KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A base station device comprising:
transmission circuitry configured to:
transmit a first signal for first synchronization with a first subcarrier spacing, and transmit a second signal for the first synchronization with the first subcarrier spacing, to cause a terminal apparatus to perform the first synchronization for a cell based on the first signal and the second signal,
transmit a third signal for second synchronization with a second subcarrier spacing to cause the terminal apparatus to perform the second synchronization for the cell based on the third signal, the first subcarrier spacing and the second subcarrier spacing being used individually among a plurality of different subcarrier spacing candidates, and
transmit a fourth signal, with a third subcarrier spacing, neither for the first synchronization nor for the second synchronization, the third subcarrier spacing being different from the second subcarrier spacing; and

determination circuitry configured to determine a physical cell identity based on the first signal and the second signal, wherein:
the first signal is a primary synchronization signal,
the second signal is a secondary synchronization signal,
the third signal is a Non-Zero Power-Channel State Information-Reference signal, and
the fourth signal is a Non-Zero Power-Channel State Information-Reference signal.