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1.
公开(公告)号:US20240340199A1
公开(公告)日:2024-10-10
申请号:US18745718
申请日:2024-06-17
Inventor: Yutaka MURAKAMI , Yasuaki YUDA
CPC classification number: H04L25/0224 , H04L5/0048 , H04L27/2657 , H04L27/2666
Abstract: A reception apparatus according to the present disclosure includes a receiver which, in operation, receives a downlink signal including a first data signal for the reception apparatus and first Reference Signals for Phase Tracking (PT-RS). The first data signal is mapped on a first set of subcarriers and the first PT-RS is mapped to the downlink signal based on a first Modulation and Coding Scheme (MCS) configured for the first data signal. The reception apparatus according also includes a circuit which, in operation, estimates a phase noise using the first PT-RS included in the downlink signal.
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2.
公开(公告)号:US20230362036A1
公开(公告)日:2023-11-09
申请号:US18354418
申请日:2023-07-18
Inventor: Yutaka MURAKAMI , Yasuaki YUDA
CPC classification number: H04L25/0224 , H04L5/0048 , H04L27/2657 , H04L27/2666
Abstract: A reception apparatus according to the present disclosure includes a receiver which, in operation, receives a downlink signal including a first data signal for the reception apparatus and first Reference Signals for Phase Tracking (PT-RS). The first data signal is mapped on a first set of subcarriers and the first PT-RS is mapped to the downlink signal based on a first Modulation and Coding Scheme (MCS) configured for the first data signal. The reception apparatus according also includes a circuit which, in operation, estimates a phase noise using the first PT-RS included in the downlink signal.
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公开(公告)号:US20230300760A1
公开(公告)日:2023-09-21
申请号:US18006543
申请日:2021-02-18
Inventor: Tetsuya YAMAMOTO , Hidetoshi SUZUKI , Takashi IWAI , Akihiko NISHIO , Ayako HORIUCHI , Yasuaki YUDA
CPC classification number: H04W52/367 , H04W52/10 , H04W52/242
Abstract: A terminal is provided with a reception circuit for receiving information from a second node that pertains to the determination of the parameter used for open-loop control for a first node, and a control circuit for exercising open-loop control on the basis of the information.
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4.
公开(公告)号:US20140348119A1
公开(公告)日:2014-11-27
申请号:US14457783
申请日:2014-08-12
Inventor: Yoshihiko OGAWA , Seigo NAKAO , Daichi IMAMURA , Akihiko NISHIO , Masayuki HOSHINO , Katsuhiko HIRAMATSU , Kenichi MIYOSHI , Yasuaki YUDA , Sadaki FUTAGI , Takashi IWAI
IPC: H04W72/04
CPC classification number: H04W72/0453 , H04L1/0042 , H04L1/0061 , H04L5/0023 , H04L5/0039 , H04L5/0048 , H04L25/0226 , H04L25/03159 , H04L27/2602
Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.
Abstract translation: 公开了一种无线通信基站装置和分割数确定方法,无论来自无线通信终端装置的发送信号的频域中的分割数如何,都可以在维持信道估计精度的同时提高频率分集效应。 确定单元确定来自无线通信终端设备的发送信号的频域中的分割数。 这里,确定单元随着发送信号中包括的导频块的数量的增加,增加来自无线通信终端装置的发送信号的频域的分割数。 此外,调度单元根据由确定单元确定的分割数来调度分配的发送信号的频率资源。
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公开(公告)号:US20230052173A1
公开(公告)日:2023-02-16
申请号:US17787891
申请日:2020-10-28
Inventor: Akihiko NISHIO , Yasuaki YUDA , Tetsuya YAMAMOTO
Abstract: According to the present invention, a base station is provided with: a control circuit that, through non-orthogonal multiplexing, allocates a first transmission power to a first signal corresponding to a first terminal type and allocates a second transmission power to a second signal corresponding to a second terminal type; and a transmission circuit that transmits the first signal and second signal having been non-orthogonally multiplexed.
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公开(公告)号:US20150074482A1
公开(公告)日:2015-03-12
申请号:US14547893
申请日:2014-11-19
Inventor: Masayuki HOSHINO , Katsuhiko HIRAMATSU , Yasuaki YUDA
CPC classification number: H04W72/0406 , H04B1/16 , H04L1/0001 , H04L1/0003 , H04L1/08 , H04L1/1819 , H04L1/1887 , H04L1/1896 , H04W28/12 , H04W28/18
Abstract: To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing overhead of retransmission control signaling. Where a retransmission control method is employed with adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>2/3, two bits are set. In a case where the encoding rate 1/3
Abstract translation: 通过减少用于发送与重传控制有关的参数的资源并减少重传控制信令的开销来提高吞吐量。 在采用了可以改变编码速率的自适应MCS控制的重传控制方法的情况下,调度部根据通信对方装置通知的CQI来设定MCS。 当传输数据被编码时,RV参数位数设置部分设置用于使RV参数发信号的位数减少,因为第一传输的编码速率降低,并且基于比特数设置RV参数。 例如,在编码率R为R> 2/3的情况下,设定2比特。 在编码率1/3
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公开(公告)号:US20210281447A1
公开(公告)日:2021-09-09
申请号:US17328852
申请日:2021-05-24
Inventor: Yutaka MURAKAMI , Yasuaki YUDA
Abstract: A reception apparatus according to the present disclosure includes a receiver which, in operation, receives a downlink signal including a first data signal for the reception apparatus and first Reference Signals for Phase Tracking (PT-RS). The first data signal is mapped on a first set of subcarriers and the first PT-RS is mapped to the downlink signal based on a first Modulation and Coding Scheme (MCS) configured for the first data signal. The reception apparatus according also includes a circuit which, in operation, estimates a phase noise using the first PT-RS included in the downlink signal.
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公开(公告)号:US20200267716A1
公开(公告)日:2020-08-20
申请号:US16870054
申请日:2020-05-08
Inventor: Masayuki HOSHINO , Katsuhiko HIRAMATSU , Yasuaki YUDA
Abstract: To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing the overhead of retransmission control signaling. In a case where a retransmission control method is employed in consideration of adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>2/3, two bits are set. In a case where the encoding rate 1/3
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9.
公开(公告)号:US20190356515A1
公开(公告)日:2019-11-21
申请号:US16476063
申请日:2018-01-29
Inventor: Yutaka MURAKAMI , Yasuaki YUDA
Abstract: A transmission apparatus according to the present disclosure includes a plurality of user modulated signal generators. A user #k modulated signal generator (104_k) (where k=1 to n) generates a modulated signal including reference signals for phase noise estimation (PT-RS: Reference Signal for Phase Tracking), for a plurality of reception apparatuses. A wireless unit (109_A, 109_B) transmits the generated modulated signal. A correction coefficient of transmission power for the reference signals is associated with a pattern of a sequence used as the reference signals, on a one-to-one basis.
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公开(公告)号:US20190124642A1
公开(公告)日:2019-04-25
申请号:US16229056
申请日:2018-12-21
Inventor: Masayuki HOSHINO , Katsuhiko HIRAMATSU , Yasuaki YUDA
Abstract: To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing overhead of retransmission control signaling. Where a retransmission control method is employed with adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>⅔, two bits are set. In a case where the encoding rate ⅓
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