COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND PROGRAM
To provide a technology for improving accuracy of beamforming.SOLUTION: A communication apparatus comprises a signal output unit configured to output baseband signals to each of multiple local oscillators on the basis of a reference oscillation signal. Each of the local oscillators includes a phase...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
13.03.2023
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a technology for improving accuracy of beamforming.SOLUTION: A communication apparatus comprises a signal output unit configured to output baseband signals to each of multiple local oscillators on the basis of a reference oscillation signal. Each of the local oscillators includes a phase comparator which outputs pulse signals in accordance with a difference between a phase of a feedback signal from a voltage-controlled oscillator and a phase of the reference oscillation signal, to the signal output unit. The signal output unit calculates phase correction values of the baseband signals output to each of the local oscillators, on the basis of the pulse signals output from each of the local oscillators, and corrects the phases of the baseband signals output to each of the local oscillators, on the basis of the phase correction values.SELECTED DRAWING: Figure 2
【課題】ビームフォーミングの精度を向上させることを可能とする技術が提供されることが望まれる。【解決手段】基準発振信号に基づいて複数の局部発振器それぞれにベースバンド信号を出力する信号出力部を備える、通信装置であって、前記複数の局部発振器それぞれは、電圧制御発振器からのフィードバック信号の位相と前記基準発振信号の位相との位相差に応じたパルス信号を前記信号出力部に出力する位相比較器を備え、前記信号出力部は、前記複数の局部発振器それぞれから出力される前記パルス信号に基づいて、前記複数の局部発振器それぞれに出力するベースバンド信号の位相補正値を算出し、前記位相補正値に基づいて前記複数の局部発振器それぞれに出力するベースバンド信号の位相を補正する、通信装置が提供される。【選択図】図2 |
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Bibliography: | Application Number: JP20210140136 |