| Patent application number | Description | Published |
|---|
| 20100150083 | Radio Base Station and Channel Allocation Information Transmission Method - A radio base station includes: a propagation path characteristic acquisition unit which acquires propagation path characteristics between a radio communication terminal and a radio base station; and a channel controller which reports to the radio communication terminal that channel allocation information is transmitted by using a dedicated control channel if the acquired propagation characteristic satisfies a predetermined condition. After the channel control unit has reported to the radio communication terminal that the channel allocation information is transmitted by using an dedicated control channel, the channel control unit and a MAP processing unit transmit the channel allocation information by using an dedicated control channel instead of a broadcast control channel in the downstream frame. | 06-17-2010 |
| 20100151798 | Radio Communication Device and Signal Processing Method - A radio base station | 06-17-2010 |
| 20100159844 | Radio Communication Device and Radio Communication Method - A radio communication device according to the present invention is a radio communication device which adaptively controls directivity of transmission radio signals by use of a plurality of element antennas on the basis of received radio signals received from a counterpart radio communication device that is a communication target radio communication device, the transmission radio signals being to be transmitted to the counterpart radio communication device, the radio communication device comprising: a propagation path state detector configured to detect a fluctuation state of a propagation path to the counterpart radio communication device on the basis of the received radio signal; and a transmission controller configured to control a phase of the transmission radio signal on the basis of the fluctuation state of the propagation path detected by the propagation path state detector. | 06-24-2010 |
| 20100159927 | Cell Search Method and Base Station - The present invention relates to a cell search method for a multiband radio communication system including a mobile station and multiple base stations. The method includes the steps of: classifying base station information into multiple first categories on the basis of a cell size of each base station, the base station, information being information on the base stations; classifying the base station information into multiple second categories on the basis of a radio-frequency band of each base station; associating movement speeds with the respective first categories and with the respective second categories; acquiring a movement speed of the mobile station; selecting at least one of the first categories and at least one of the second categories on the basis of the acquired movement speed and the associations between the movement speeds and the respective first and second categories; creating a base station list on the basis of base station information which belongs to the selected first category and base station in information which belongs to the selected second category, the base station list being to be notified to the mobile station; notifying the mobile station of the base station list; and causing the mobile station to perform a cell search on the basis of the notified base station list. | 06-24-2010 |
| 20100173592 | Radio Communication Device and Radio Communication Method - A radio communication device according to the present invention adaptively controls directivity of a transmission radio signal by using a plurality of element antennas on the basis of a received radio signal received from a communication target counterpart radio communication device. The radio communication device includes a transmission controller configured to process the transmission radio signal according to a first control method for adaptively controlling the directivity, a propagation path state detector configured to detect fluctuation state of a propagation path to a counterpart radio communication device, and a judgment unit configured to judge whether or not to change the directivity on the basis of the fluctuation state of the propagation path. If it is judged that the directivity is to be changed, the transmission controller switches to a second control method that is different from the first control method, and processes the transmission radio signal according to the second control method. | 07-08-2010 |
