Relay apparatus and its relay method
First Claim
1. A relay apparatus for relaying communication between a terminal device and a donor base station,the relay apparatus comprising:
- an amplitude and phase measurement unit that measures an amplitude and phase of radio communication from a donor base station to the relay apparatus; and
a beam adjuster that makes adjustment for beamforming with respect to the donor base station by adjusting amplitudes and phases from a plurality of antennas used at the relay apparatus on the basis of the measured amplitude and phase,wherein the adjustment for the beamforming with respect to the donor base station is performed by measuring the amplitude and the phase during a time slot when a terminal device does not exist in a service area of the relay apparatus.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
6 Citations
10 Claims
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1. A relay apparatus for relaying communication between a terminal device and a donor base station,
the relay apparatus comprising: -
an amplitude and phase measurement unit that measures an amplitude and phase of radio communication from a donor base station to the relay apparatus; and a beam adjuster that makes adjustment for beamforming with respect to the donor base station by adjusting amplitudes and phases from a plurality of antennas used at the relay apparatus on the basis of the measured amplitude and phase, wherein the adjustment for the beamforming with respect to the donor base station is performed by measuring the amplitude and the phase during a time slot when a terminal device does not exist in a service area of the relay apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A relay method for a relay apparatus,
the relay method comprising: -
a step of measuring an amplitude and phase of radio communication from a donor base station to the relay apparatus; and a beam adjustment step of making adjustment for beamforming of radio communication from the relay apparatus to the donor base station by adjusting amplitudes and phases from a plurality of antennas used at the relay apparatus on the basis of the measured amplitude and phase, wherein the relay apparatus makes the adjustment for the beamforming by measuring the amplitude and the phase during a time slot when a terminal device does not exist in a service area of the relay apparatus. - View Dependent Claims (9, 10)
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Specification