Patent ID: 11881968
Assignee: NTT DOCOMO, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A system comprising:
a terminal comprising:
a processor that determines a number of ports used to transmit a Physical Uplink Shared Channel (PUSCH) is only one based on a downlink control information scheduling the PUSCH in response to a Sounding Reference Signal (SRS) resource not being configured by a higher layer signaling;
a transmitter of the terminal that transmits the PUSCH,
wherein the downlink control information does not include an SRS resource index; and

a base station comprising:
a transmitter of the base station that transmits the higher layer signaling without a configuration of the SRS resource to the terminal; and
a receiver that receives the PUSCH transmitted using the only one port from the terminal based on the downlink control information scheduling the PUSCH.