公开(公告)号：US10454507B2

公开(公告)日：2019-10-22

申请号：US15312529

申请日：2016-07-29

申请人： SoftBank Corp.

发明人： Masanori Nomachi

IPC分类号： H04B1/00 ,  H04B1/401 ,  H04W88/06

摘要： The communication device includes a switching controller. In a case where the communication band to be used is a second frequency band between a second lower edge frequency and a second upper edge frequency or in a case where the communication band to be used is a first frequency band between a first lower edge frequency and a first upper edge frequency and a frequency of the signal to be used is included in a first passband, the switching controller controls a filter switcher to switch to a first filter. In a case where the communication band to be used is a third frequency band between a third lower edge frequency and a third upper edge frequency or in a case where the communication band to be used is a first frequency band and the frequency of the signal to be used is included in a second passband, the switching controller controls the filter switcher to switch to a second filter. The third lower edge frequency is higher than the second lower edge frequency, and the third upper edge frequency is higher than the second upper edge frequency.

公开(公告)号：US10531337B2

公开(公告)日：2020-01-07

申请号：US15511148

申请日：2017-01-25

申请人： SoftBank Corp.

发明人： Takayuki Yoshimura ,  Masahiko Nanri ,  Masanori Nomachi ,  Takanori Takii ,  Jumpei Takagi

IPC分类号： H04W28/08 ,  H04W28/18 ,  H04W28/02 ,  H04W72/08 ,  H04W48/06 ,  H04W16/26 ,  H04W28/04 ,  H04W84/04 ,  H04W28/16

摘要： Communication quality of a terminal device which directly connects to a macro cell base station is guaranteed and communication quality of a terminal device which connects to the macro cell base station via a relay apparatus is guaranteed. A communication control system includes: an acquisition unit that acquires communication status information including a past communication traffic volume between the macro cell base station and a relay apparatus 20; a setting unit that presets a first permitted communication traffic volume for a first communication period during which a communication traffic volume between the macro cell base station and the relay apparatus 20 is equal to or more than a specified communication traffic volume, and a second permitted communication traffic volume for a second communication period during which the communication traffic volume is less than the specified communication traffic volume, on the basis of the communication status information; a measurement unit that measures a current communication traffic volume between the macro cell base station and the relay apparatus 20; and a control unit that controls the second permitted communication traffic volume on the basis of the measured current communication traffic volume.

公开(公告)号：US10484077B2

公开(公告)日：2019-11-19

申请号：US15506720

申请日：2016-12-14

申请人： SoftBank Corp.

发明人： Takayuki Yoshimura ,  Masahiko Nanri ,  Masanori Nomachi ,  Takanori Takii ,  Jumpei Takagi

IPC分类号： H04B1/60 ,  H04B7/10 ,  H04B17/40

摘要： Beamforming for radio communication (uplink) from a relay apparatus to a donor base station is performed accurately. A relay apparatus 20 is a relay apparatus 20 for relaying communication between a terminal device 10 and a donor base station 30 and includes: an amplitude and phase measurement unit 25 that measures an amplitude and phase of radio communication from the donor base station 30 to the relay apparatus 20; and a beam adjuster 27 that performs beamforming with respect to the donor base station 30 by adjusting amplitudes and phases from a plurality of antennas used at the relay apparatus 20 by measuring the amplitude and the phase by using the amplitude and phase measurement unit 25, wherein during a time slot when the terminal device 10 does not exist in a service area of the relay apparatus 20, the relay apparatus 20 detects no existence of the terminal device 10 in the service area and stops access radio, the amplitude and phase measurement unit 25 measures the amplitude and the phase, and the beam adjuster 27 performs the beamforming with respect to the donor base station 30, after which the access radio is restarted.

公开(公告)号：US20170264321A1

公开(公告)日：2017-09-14

申请号：US15312529

申请日：2016-07-29

申请人： SoftBank Corp.

发明人： Masanori Nomachi

IPC分类号： H04B1/00 ,  H04B1/401

摘要： The communication device includes a switching controller. In a case where the communication band to be used is a second frequency band between a second lower edge frequency and a second upper edge frequency or in a case where the communication band to be used is a first frequency band between a first lower edge frequency and a first upper edge frequency and a frequency of the signal to be used is included in a first passband, the switching controller controls a filter switcher to switch to a first filter. In a case where the communication band to be used is a third frequency band between a third lower edge frequency and a third upper edge frequency or in a case where the communication band to be used is a first frequency band and the frequency of the signal to be used is included in a second passband, the switching controller controls the filter switcher to switch to a second filter. The third lower edge frequency is higher than the second lower edge frequency, and the third upper edge frequency is higher than the second upper edge frequency.