Transmission power control method, base station apparatus and mobile station apparatus
AssigneeNtt Docomo, Inc.
InventorsDaisuke Nishikawa, Yoshihisa Kishiyama, Mamoru Sawahashi
Life of this patent
Estimating the term…
Abstract
To provide a transmission power control method, base station apparatus and mobile station apparatus for enabling the transmission power in the mobile station apparatus having a plurality of antennas to be properly controlled, enabled is one of a common control mode for transmitting a common TPC command to perform transmission power control common to antennas (102a, 102b) to the mobile station apparatus (100) and an individual control mode for transmitting individual TPC commands to perform transmission power control individually on the antennas (102a, 102b) to the mobile station apparatus (100).
Claims25
A transmission power control method for controlling uplink transmission power,
- wherein the method enables one of a common control mode for controlling transmission power of a plurality of antennas using a transmission power control signal common to the antennas for a mobile station apparatus having the plurality of antennas, and an individual control mode for controlling transmission power of the plurality of antennas using transmission power control signals for individual antennas for the mobile station apparatus.
A base station apparatus for controlling uplink transmission power,
- wherein the base station apparatus is configured to be able to switch between a common control mode for controlling transmission power of a plurality of antennas using a transmission power control signal common to the antennas for a mobile station apparatus having the plurality of antennas, and an individual control mode for controlling transmission power of the plurality of antennas using transmission power control signals for individual antennas for the mobile station apparatus.
A mobile station apparatus having a plurality of antennas in which uplink transmission power is controlled by a base station apparatus,
- wherein the mobile station apparatus sets a transmission power control signal transmitted from the base station apparatus for one of a common control mode for applying a common transmission power control signal to the plurality of antennas, and an individual control mode for applying individual transmission power control signals to the plurality of antennas.
A transmission power control method,
- wherein a reception level difference signal is generated based on a reception level difference among a plurality of antennas of a mobile station apparatus having the plurality of antennas, and is transmitted to the mobile station apparatus.
A base station apparatus configured to generate a reception level difference signal based on a reception level difference among a plurality of antennas of a mobile station apparatus, and transmit the reception level difference signal to the mobile station apparatus.
Dependencies are inferred from the claim text.