Base station
A base station includes a first unit that performs radio transmission of a signal to a terminal, a second unit, and an interface that connects the first unit to the second unit. In order to determine which of the first unit and the second unit is a unit that performs precoding, information indicating whether or not at least one of the first unit and the second unit has a function of the precoding is sent over the interface.
1. A base station, comprising:
a Radio Unit (RU) that wirelessly transmits a signal to a terminal;
a Distributed Unit (DU); and
an interface that connects the RU to the DU,
wherein function information indicating a function that the RU has is sent from the RU to the DU,
wherein the function information includes a first parameter indicating whether or not the RU has a function of precoding,
wherein the function information further includes a second parameter indicating whether or not the RU has a function of digital beamforming, and
wherein the function information further includes an additional parameter indicating a beam identifier.
2. A base station, comprising:
a Radio Unit (RU) that wirelessly transmits a signal to a terminal;
a Distributed Unit (DU); and
an interface that connects the RU to the DU,
wherein function information indicating a function that the RU has is sent from the RU to the DU,
wherein the function information includes a first parameter indicating whether or not the RU has a function of precoding,
wherein when the RU and the DU have the function of the precoding, the RU is determined as a unit that performs the precoding, and
wherein the function information further includes an additional parameter indicating a beam identifier.