公开(公告)号：US09967118B2

公开(公告)日：2018-05-08

申请号：US15235655

申请日：2016-08-12

Applicant: Sony Deutschland GmbH

Inventor： Ralf Böhnke ,  Seiichi Izumi

IPC: H04K1/10 ,  H04L27/01 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04L1/06 ,  H04B7/0404 ,  H04L27/12 ,  H04B7/04 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00

CPC classification number: H04L27/01 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0613 ,  H04L1/0003 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/14 ,  H04L25/03343 ,  H04L27/12 ,  H04L27/2626 ,  H04L2025/03808

Abstract: For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).

公开(公告)号：US09954710B2

公开(公告)日：2018-04-24

申请号：US15419088

申请日：2017-01-30

Applicant: Sony Deutschland GmbH

Inventor： Seiichi Izumi

IPC: H04L27/26 ,  H04W52/02 ,  H04L25/02

CPC classification number: H04L27/263 ,  H04B1/0475 ,  H04B1/0483 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/0697 ,  H04B7/0842 ,  H04B7/0857 ,  H04L1/0001 ,  H04L1/06 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0058 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2628 ,  H04L27/2647 ,  H04W52/02 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/444

Abstract: A communication device for transmitting orthogonal frequency division multiplexed (OFDM) signals in a wireless communication system. The device includes a plurality of antenna elements that transmit the OFDM signals to a receiver over a plurality of transmission channels in the wireless communication system. The device also generates weight coefficients applied to each of the plurality of subcarrier signals, and controls an amplitude and/or phase of the plurality of subcarrier signals as a function of said weight coefficients.

公开(公告)号：US09455806B2

公开(公告)日：2016-09-27

申请号：US14050949

申请日：2013-10-10

Applicant: Sony Deutschland GmbH

Inventor： Seiichi Izumi

IPC: H04L5/04 ,  H04L5/00 ,  H04B1/04 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02 ,  H04L27/26 ,  H04W52/02 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06

CPC classification number: H04L27/263 ,  H04B1/0475 ,  H04B1/0483 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/0697 ,  H04B7/0842 ,  H04B7/0857 ,  H04L1/0001 ,  H04L1/06 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0058 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2628 ,  H04L27/2647 ,  H04W52/02 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/444

Abstract: A communication device for transmitting orthogonal frequency division multiplexed (OFDM) signals in a wireless communication system. The device includes a plurality of antenna elements that transmit the OFDM signals to a receiver over a plurality of transmission channels in the wireless communication system. The device also generates weight coefficients applied to each of the plurality of subcarrier signals, and controls an amplitude and/or phase of the plurality of subcarrier signals as a function of said weight coefficients.

Abstract translation: 一种用于在无线通信系统中发送正交频分复用（OFDM）信号的通信设备。 该装置包括多个天线元件，其通过无线通信系统中的多个传输信道将OFDM信号发射到接收机。 所述装置还产生施加到所述多个子载波信号中的每一个的加权系数，并且根据所述加权系数来控制所述多个子载波信号的振幅和/或相位。

公开(公告)号：USRE45269E1

公开(公告)日：2014-12-02

申请号：US14010032

申请日：2013-08-26

Applicant: Sony Deutschland GmbH

Inventor： Seiichi Izumi

IPC: H04J11/00 ,  H04W4/00 ,  H04J3/06

Abstract: In an OFDM transmission a transmission diversity technique is used without orthogonal signaling. The phases of the subcarriers received at the different antennas are compared by different techniques and then the phases of the signals for different antennas are adjusted for a subsequent transmission over the OFDM interface. The phase (and optionally amplitude) adjustment is calculated in only one (transmitting) side and no orthogonal signaling required. The number of antennas can be increased as much as necessary to get a sharper beam. The negative effects of fading and interference can be reduced so that at same time a down link transmission power can be reduced.

Abstract translation: 在OFDM传输中，使用无正交信令的传输分集技术。 通过不同的技术比较在不同天线处接收的子载波的相位，然后调整用于不同天线的信号的相位，以便通过OFDM接口进行后续传输。 相位（和可选幅度）调整仅在一个（发射）侧计算，并且不需要正交信号。 可以根据需要增加天线的数量以获得更清晰的光束。 可以降低衰落和干扰的负面影响，从而可以同时降低链路传输功率。

公开(公告)号：US20160352549A1

公开(公告)日：2016-12-01

申请号：US15235655

申请日：2016-08-12

Applicant: Sony Deutschland GmbH

Inventor： Ralf Böhnke ,  Seiichi Izumi

IPC: H04L27/01 ,  H04L27/26 ,  H04L5/14 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04L27/01 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0613 ,  H04L1/0003 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/14 ,  H04L25/03343 ,  H04L27/12 ,  H04L27/2626 ,  H04L2025/03808

Abstract: For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).

公开(公告)号：US09450792B2

公开(公告)日：2016-09-20

申请号：US14586481

申请日：2014-12-30

Applicant: Sony Deutschland GmbH

Inventor： Ralf Böhnke ,  Seiichi Izumi

IPC: H04K1/10 ,  H04L27/12 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04L27/01 ,  H04L1/06 ,  H04B7/04 ,  H04L1/00

CPC classification number: H04L27/01 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0613 ,  H04L1/0003 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/14 ,  H04L25/03343 ,  H04L27/12 ,  H04L27/2626 ,  H04L2025/03808

Abstract: For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).

公开(公告)号：US08948302B2

公开(公告)日：2015-02-03

申请号：US14041998

申请日：2013-09-30

Applicant: Sony Deutschland GmbH

Inventor： Ralf Böhnke ,  Seiichi Izumi

IPC: H04L25/49 ,  H04L1/06 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04L27/01 ,  H04L1/00

CPC classification number: H04L27/01 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0613 ,  H04L1/0003 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/14 ,  H04L25/03343 ,  H04L27/12 ,  H04L27/2626 ,  H04L2025/03808

Abstract: For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).

公开(公告)号：US09596059B2

公开(公告)日：2017-03-14

申请号：US14050963

申请日：2013-10-10

Applicant: Sony Deutschland GmbH

Inventor： Seiichi Izumi

IPC: H04J9/00 ,  H04L5/00 ,  H04B1/04 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02 ,  H04L27/26 ,  H04W52/02 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06

CPC classification number: H04L27/263 ,  H04B1/0475 ,  H04B1/0483 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/0697 ,  H04B7/0842 ,  H04B7/0857 ,  H04L1/0001 ,  H04L1/06 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0058 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2628 ,  H04L27/2647 ,  H04W52/02 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/444

Abstract: A communication device for transmitting orthogonal frequency division multiplexed (OFDM) signals in a wireless communication system. The device includes a plurality of antenna elements that transmit the OFDM signals to a receiver over a plurality of transmission channels in the wireless communication system. The device also generates weight coefficients applied to each of the plurality of subcarrier signals, and controls an amplitude and/or phase of the plurality of subcarrier signals as a function of said weight coefficients.

Abstract translation: 一种用于在无线通信系统中发送正交频分复用（OFDM）信号的通信设备。 该装置包括多个天线元件，其通过无线通信系统中的多个传输信道将OFDM信号发射到接收机。 所述装置还产生施加到所述多个子载波信号中的每一个的加权系数，并且根据所述加权系数来控制所述多个子载波信号的振幅和/或相位。

公开(公告)号：US09008224B2

公开(公告)日：2015-04-14

申请号：US13892798

申请日：2013-05-13

Applicant: Sony Deutschland GmbH

Inventor： Ralf Böhnke ,  Seiichi Izumi

IPC: H04L27/00 ,  H04K1/10 ,  H04L1/06 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04L27/01 ,  H04L1/00

CPC classification number: H04L27/01 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0613 ,  H04L1/0003 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/14 ,  H04L25/03343 ,  H04L27/12 ,  H04L27/2626 ,  H04L2025/03808

Abstract: For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).

Abstract translation: 例如，在OFDM多载波传输系统的情况下，可以调整使用多个天线元件（3,3'）的多载波传输系统的子载波的传输特性。 特别地，可以适应副载波的功率和相位。 为此，在发射机（3）侧检测到多载波传输的副载波频道（2,2'）特性（11,11'）。 然后，每个子载波的功率由加权单元（14,14'）分配。 可以通过将子载波信号分别除以所有子载波信号的频道特性的平方幅度之和或所选择的天线单元（3,3'）的频率特性，来进一步预均衡（1,1'）， ）。