公开(公告)号：US20190207797A1

公开(公告)日：2019-07-04

申请号：US16332800

申请日：2017-10-18

Applicant: Zaichen ZHANG ,  Rong ZENG ,  Pen-Shun LU ,  Sony Corporation

Inventor： Zaichen ZHANG ,  Rong ZENG ,  Pen-shun LU

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2688 ,  H04L27/00 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2695 ,  H04W56/00 ,  H04W56/001

Abstract: Provided are a control apparatus, device and method for a wireless communication system, a signal processing apparatus and method for a mobile terminal, a mobile terminal and a wireless communication system. The control apparatus comprises: a control circuit, wherein the control circuit is configured to make a plurality of the wireless communication devices send, to a mobile terminal, a plurality of synchronous sequence signals which are different from each other. According to the control apparatus, device and method, the signal processing apparatus and method, the mobile terminal and the wireless communication system in the present disclosure, the influence of a large-carrier frequency offset on the performance of a timing synchronization system can be effectively suppressed and eliminated.

公开(公告)号：US20180131404A1

公开(公告)日：2018-05-10

申请号：US15572575

申请日：2016-05-13

Applicant: Zaichen ZHANG ,  Rong ZENG ,  SONY CORPORATION

Inventor： Zaichen ZHANG ,  Rong ZENG

IPC: H04B1/7117 ,  H03H17/02 ,  H04B1/7105 ,  H04B1/7113

CPC classification number: H04B1/7117 ,  H03H17/0255 ,  H04B1/7105 ,  H04B1/7113 ,  H04B7/0842

Abstract: The present disclosure provides a device and method for wireless communication and a communication terminal. The device comprises: a spatial filtering unit, configured to perform spatial filtering on a signal received by each antenna in a receiving antenna array, and combine filtered signals, wherein all coefficients adopted by spatial filtering are configured to reduce an equivalent channel time-variant degree of a combined signal.

公开(公告)号：US20190165976A1

公开(公告)日：2019-05-30

申请号：US16092810

申请日：2017-04-06

Applicant: Jian Dang ,  Jianqing DOU ,  Yu SHI ,  Zaichen ZHANG ,  Liang WU ,  Penshun LU

Inventor： Jian Dang ,  Jianqing DOU ,  Yu SHI ,  Zaichen ZHANG ,  Liang WU ,  Penshun LU

IPC: H04L27/26 ,  H04L25/03 ,  H04L25/02

Abstract: Provided are an apparatus and method for a sending end and a receiving end of a wireless communication system, and a soft information estimator. The apparatus for the sending end of the wireless communication system comprises: an interleave division multiple access unit configured to perform interleave processing on information to be sent; and a filter bank multi-carrier unit configured to use a specific sub-carrier chosen in advance to transmit the interleaved information in a parallel manner.

公开(公告)号：US20180027499A1

公开(公告)日：2018-01-25

申请号：US15549906

申请日：2016-02-16

Applicant: Jian DANG ,  Zaichen ZHANG ,  Liang WU ,  Chao WEI ,  Yu SHI

Inventor： Jian DANG ,  Zaichen ZHANG ,  Liang WU ,  Chao WEI ,  Yu SHI

IPC: H04W52/14 ,  H04W72/04 ,  H04L27/26 ,  H04W52/26 ,  H04W52/32

CPC classification number: H04W52/146 ,  H04J11/004 ,  H04J2211/008 ,  H04L27/26 ,  H04L27/2626 ,  H04W52/243 ,  H04W52/265 ,  H04W52/325 ,  H04W52/346 ,  H04W72/044 ,  H04W88/02 ,  H04W88/08

Abstract: Provided is a wireless communication apparatus for a non-orthogonal multiple access communication system. The apparatus comprises: a power adjustment unit which is used, for at least some of user equipment included in the communication system, dynamically adjusting the sending power of each of the at least some of the user equipment for each sub-carrier according to channel state information about the communication system, in order that the at least some of the user equipment perform uplink data transmission on corresponding sub-carriers with the adjusted sending power. According to the disclosed apparatus, method and system, at least one of the following technical benefits could be obtained: increasing the channel capacity of the communication system; reducing the bit error rate during the communication; and reducing the interference between corresponding user equipment in the communication system.

公开(公告)号：US20180287727A1

公开(公告)日：2018-10-04

申请号：US15525301

申请日：2015-11-30

Applicant: Liang WU ,  Zaichen ZHANG ,  Jian DANG ,  Yingying YU ,  Weiwei QIN

Inventor： Liang WU ,  Zaichen ZHANG ,  Jian DANG ,  Yingying YU ,  Weiwei QIN

IPC: H04J11/00 ,  H04L27/00 ,  H04W16/10 ,  H04B17/336 ,  H04W84/00 ,  H04B7/0456

CPC classification number: H04J11/0053 ,  H04B7/0456 ,  H04B17/336 ,  H04J11/0056 ,  H04L27/0008 ,  H04W16/10 ,  H04W84/005 ,  H04W84/045

Abstract: A small cell interference coordination method and wireless communication device. The method includes: obtaining mobile information of at least one of the small cells; determining relative movement between the small cells according to at least the movement information; estimating a Doppler frequency shift of a signal between small cells according to the relative movement; and implementing an interference alignment policy between small cells according to the estimated Doppler frequency shift.

公开(公告)号：US20180287687A1

公开(公告)日：2018-10-04

申请号：US15766035

申请日：2016-10-27

Applicant: Liang WU ,  Zaichen ZHANG ,  Weiwei QIN ,  Lili ZHENG ,  Jian DANG

Inventor： Liang WU ,  Zaichen ZHANG ,  Weiwei QIN ,  Lili ZHENG ,  Jian DANG

IPC: H04B7/08

CPC classification number: H04B7/086 ,  G01S3/02 ,  H04B7/0897 ,  H04W52/02 ,  H04W64/00

Abstract: In a wireless communications system, a base station includes a first number of antennas and a smaller second number of radio frequency links. A base station apparatus includes: a rough arrival angle estimation unit, which estimates a rough arrival angle pair by a second number of antennas and a second number of radio frequency links; a candidate arrival angle estimation unit, which determines a candidate arrival angle pair based on a rough arrival angle pair and beam widths determined by a first number and a second number of antennas, respectively; and a precise arrival angle determination unit, which calculates the difference between the projection component and real component for the candidate arrival angle pairs based on a training tone from the user equipment, and designates the candidate arrival angle pair with the smallest difference between those components as the precise arrival angle pair.

公开(公告)号：US20180295596A1

公开(公告)日：2018-10-11

申请号：US15760802

申请日：2016-09-22

Applicant: Sony Corporation

Inventor： Zaichen ZHANG ,  Rong ZENG ,  Yuxin WEI ,  Chen SUN

IPC: H04W56/00 ,  H04B17/336 ,  H04L27/10 ,  H04W64/00 ,  G01S13/50

CPC classification number: H04W56/0035 ,  G01S13/505 ,  H04B17/336 ,  H04L27/00 ,  H04L27/10 ,  H04W64/006

Abstract: An electronic device for wireless communications, and a wireless communication method. The electronic device includes: one or more processors, each processor configured to: respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.

公开(公告)号：US20190239180A1

公开(公告)日：2019-08-01

申请号：US16378588

申请日：2019-04-09

Applicant: Sony Corporation

Inventor： Zaichen ZHANG ,  Rong ZENG ,  Yuxin WEI ,  Chen SUN

IPC: H04W56/00 ,  H04W64/00 ,  H04L27/10 ,  H04B17/336 ,  H04L27/00 ,  G01S13/50

CPC classification number: H04W56/0035 ,  G01S13/505 ,  H04B17/336 ,  H04L27/00 ,  H04L27/10 ,  H04W64/006

Abstract: This disclosure relates to an electronic device for wireless communications, and a wireless communication method. The electronic device comprises one or more processors, wherein each processor is configured to respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate the frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.

公开(公告)号：US20190334657A1

公开(公告)日：2019-10-31

申请号：US16474566

申请日：2017-12-26

Applicant: Sony Corporation

Inventor： Zaichen ZHANG ,  Rong ZENG ,  Penshun LU ,  Chen SUN

IPC: H04L1/06 ,  H04B7/0456 ,  H04B7/08

Abstract: The disclosure relates to an electronic device, radio communication apparatus, and radio communication method. In one embodiment, an electronic device utilized at base station side comprises a processing circuit configured to: acquire information of an arrival time difference of diversity signals transmitted from two or more base stations to a mobile terminal; determine, on the basis of the information, a precoding matrix utilized in diversity signal transmission to reduce an impact of the arrival time difference on a diversity gain; and utilize the determined precoding matrix to perform precoding on a signal to be transmitted.

公开(公告)号：US20190141545A1

公开(公告)日：2019-05-09

申请号：US16092794

申请日：2017-04-06

Applicant: SONY CORPORATION

Inventor： Jian DANG ,  Jianqing DOU ,  Yu SHI ,  Zaichen ZHANG ,  Liang WU ,  Pen-shun LU

IPC: H04W24/02 ,  H04W72/04 ,  H04L25/02 ,  H04L27/26

Abstract: Provided are an apparatus and method for a hybrid multiple access wireless communication system. The apparatus comprises: a parameter acquisition unit configured to acquire a relevant parameter of a hybrid multiple access wireless communication system; and a sub-carrier allocation unit configured to use the relevant parameter to allocate sub-carriers to each user equipment with the purpose of optimizing overall communication quality of the hybrid multiple access wireless communication system.