TERMINAL, BASE STATION, AND COMMUNICATION METHOD

摘要

Provided is a terminal with which it is possible, in a heterogeneous cell network, to transmit a Periodic-Sounding Reference Signal (P-SRS) at a transmission bandwidth and power density necessary for carrying out both a process of selection of a transceiving participating base station and a process of frequency scheduling of a Physical Uplink Shared Channel (PUSCH). A terminal (300) comprises a receiving unit (301) which receives control information which includes information which denotes a P-SRS transmission parameter, and a transmission unit (303) which, using a transmission parameter which is included in the received control information, transmits a first P-SRS provided with a first bandwidth and a first power density at a first period, and transmits a second P-SRS provided with a second bandwidth which is narrower than the first bandwidth and second power density which is higher than the first power density at a second period.

主权项

1. A communication terminal apparatus comprising:
a memory that stores instructions; a processor that, when executing the instructions stored in the memory, performs operations comprising:
receiving a transmission request for an aperiodic sounding reference signal (A-SRS), and a transmission power control command (TPC command) for transmission control of the A-SRS, the TPC command being received in a Physical Downlink Control Channel (PDCCH),controlling a transmission power value of a first A-SRS using a TPC command when the TPC command is received within a first time period, and controlling a transmission power value of a second A-SRS using a TPC command when the TPC command is received within a second time period other than the first time period, wherein the second time period follows the first time period, andtransmitting the first A-SRS at the controlled transmission power value, and transmitting the second A-SRS at the controlled transmission power value.