摘要:
A base station apparatus for a mobile communication system is disclosed that includes a unit to receive an uplink reference signal transmitted from user equipment, a unit to provide transmission power control data indicating whether a transmission power value of the uplink reference signal to be transmitted later is to be changed, a unit to derive a first offset power value so that the uplink control signal is transmitted at a power value determined by adding the first offset power value to the transmission power value of the uplink reference signal, a unit to derive a second offset power value so that the uplink control signal is transmitted at a power value determined by adding the second offset power value to the transmission power value of the uplink reference signal, and a unit to report the data and values to the user equipment.
摘要:
A base station communicating with a user device using multiple antennas in a system where a subframe is composed of multiple slots each composed of multiple basic time units is disclosed. The base station includes a first mapping unit configured to map one or more reference signals used for demodulation of one or more L1/L2 control channels and one or more data channels to be transmitted from one or more of the antennas within a predetermined number of basic time units from the beginning of each subframe; and a second mapping unit configured to map reference signals used for demodulation of data channels to be transmitted from other ones of the antennas to one or more basic time units following the basic time units to which the reference signals used for demodulation of the L1/L2 control channels and the data channels are mapped.
摘要:
A base station apparatus is disclosed that is capable of communicating with user equipment used in a mobile communication system. The base station apparatus includes a determination unit determining whether a path loss value reported from the user equipment satisfies a predetermined condition, an instruction signal generation unit, based on a result of the determination made by the determination unit, generating an instruction signal indicating whether the user equipment should reduce a transmission power value in response to a request from an other cell to reduce the transmission power value, and a transmission unit transmitting the instruction signal to the user equipment. Further, the path loss value is derived based on an average receiving quality value and a target quality value.