公开(公告)号：US10299137B2

公开(公告)日：2019-05-21

申请号：US15518687

申请日：2015-10-13

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Xiaodong Xu ,  Jiahui Liu ,  Ningyu Chen ,  Xiang Zhou ,  Yu Sun

IPC: H04W16/14 ,  H04W74/00 ,  H04W74/08

Abstract: A base station side device and method and user side device and method for wireless communication. The device includes: a sending unit configured to send instruction on an unauthorized frequency band detection to a user equipment (UE) served by the cell where the device is located; a receiving unit configured to receive from the UE a signal representing occupancy status of the unauthorized frequency band; and a determination unit configured to determine based on the signal received by the receiving unit whether to use the unauthorized frequency band for communication, the unauthorized frequency band occupancy status includes occupied/idle status and the type of the occupying system, and the type of occupying system includes one of an unauthorized communication system and an authorized communication system.

公开(公告)号：US10278162B2

公开(公告)日：2019-04-30

申请号：US15102441

申请日：2014-12-23

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Ningyu Chen ,  Jiahui Liu ,  Yingni Zhang ,  Liang Zeng ,  Zhongbin Qin

IPC: H04W76/20 ,  H04W72/04 ,  H04W72/08 ,  H04W72/10 ,  H04W52/02 ,  H04W76/27

Abstract: A device and method controlling working state change of a small cell and a base station including the device. The device includes: an information acquiring unit that acquires interference between a small cell to be controlled and an adjacent small cell and/or load of the small cell to be controlled or load distributed by other small cells and to be borne by the small cell to be controlled; and a state change determination unit that determines working state change to be performed by the small cell to be controlled according to the acquired interference and/or load. The working state includes multiple sleep levels from low to high. A sleep degree of the small cell to be controlled in a low sleep level is less than a sleep degree of the small cell to be controlled in a high sleep level, the working state change being performed among multiple sleep levels.

公开(公告)号：US10251183B2

公开(公告)日：2019-04-02

申请号：US15892708

申请日：2018-02-09

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Hui Tian ,  Meng Wang ,  Peng Tian ,  Liqi Gao

IPC: H04W4/00 ,  H04W72/08 ,  H04W72/04 ,  H04L1/00 ,  H04W24/02 ,  H04W52/24 ,  H04B17/345 ,  H04W84/04 ,  H04W24/10 ,  H04W92/20

Abstract: An apparatus and a method for a wireless communication network. The apparatus includes circuitry configured for acquiring the first information associated with an indicator indicating communication quality of user terminals served by an interfering base station; acquiring second information associated with an indicator indicating interfered degree of user terminals interfered by the interfering base station; configuring, based on the first information and the second information, transmission of the interfering base station for inter-base station coordination. The technical solution improves the overall performance of the wireless communication heterogeneous network.

公开(公告)号：US09490888B2

公开(公告)日：2016-11-08

申请号：US14656351

申请日：2015-03-12

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang ,  Xianjun Yang

IPC: H04B7/06 ,  H04L1/00 ,  H04B7/04 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04B7/0639 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04L1/0026 ,  H04W72/042 ,  H04W76/15

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

公开(公告)号：US20150295624A1

公开(公告)日：2015-10-15

申请号：US14431356

申请日：2013-07-08

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Hui Wang

IPC: H04B7/02 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0027

Abstract: Disclosed are a base station, a wireless communication terminal, a wireless communication system, and a wireless communication method. The base station can be used in coordinated multi-point transmission and comprises: a channel quality obtaining unit for obtaining uplink channel quality between a user equipment and a coordinated base station; a channel quality determination unit for comparing the obtained uplink channel quality with a quality threshold to determine whether the uplink channel quality is good or bad; a feedback control unit for determining, according to a determination result, whether to allow the user equipment to feed back channel state information to the corresponding coordinated base station; and a sending unit for sending information, about how to feed back the channel status information, to the user equipment. When the determination result is that the uplink channel quality is better than channel quality represented by the quality threshold, the feedback control unit determines to allow the user equipment to feed back the channel status information to the corresponding coordinated base station; when the determination result is that the uplink channel quality is poorer than the channel quality represented by the quality threshold, the feedback control unit determines not to allow the user equipment to feed back the channel status information to the corresponding coordinated base station.

Abstract translation: 公开了一种基站，无线通信终端，无线通信系统和无线通信方法。 基站可以用于协调的多点传输，包括：信道质量获取单元，用于获取用户设备和协调基站之间的上行信道质量; 信道质量确定单元，用于将获得的上行链路信道质量与质量阈值进行比较，以确定上行链路信道质量是好还是坏; 反馈控制单元，用于根据确定结果确定是否允许用户设备将信道状态信息反馈到对应的协调基站; 以及发送单元，用于向用户设备发送关于如何反馈信道状态信息的信息。 当确定结果是上行链路信道质量优于由质量阈值表示的信道质量时，反馈控制单元确定允许用户设备将信道状态信息反馈到对应的协调基站; 当确定结果是上行链路信道质量比由质量阈值表示的信道质量差时，反馈控制单元确定不允许用户设备将信道状态信息反馈到对应的协调基站。

公开(公告)号：US20150016425A1

公开(公告)日：2015-01-15

申请号：US14370412

申请日：2012-11-28

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Yingni Zhang ,  Xiaona Li ,  Shiyuan Li

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/0035 ,  H04L2001/0093 ,  H04W72/08 ,  H04W76/15

Abstract: An electronic device, and a method and computer readable medium, for use of subsets of coordinated multi-point (CoMP) transmission cells. The device includes processing circuitry configured to select a plurality of transmission cells as the subset of the CoMP set of transmission cells used to support wireless communications with a user equipment (UE). The processing circuitry selects the plurality of transmission cells based on a message from the UE that includes aggregate channel quality information (CQI) for at least two communication channels between the UE and corresponding transmission cells of the plurality of transmission cells.

Abstract translation: 一种电子设备，以及用于协调多点（CoMP）传输小区的子集的方法和计算机可读介质。 该设备包括被配置为选择多个传输小区作为用于支持与用户设备（UE）的无线通信的传输小区的CoMP组的子集的处理电路。 所述处理电路基于来自所述UE的消息来选择所述多个传输小区，所述消息包括所述UE与所述多个传输小区的相应传输小区之间的至少两个通信信道的聚合信道质量信息（CQI）。

公开(公告)号：US11388772B2

公开(公告)日：2022-07-12

申请号：US16954215

申请日：2019-04-30

Applicant: Sony Corporation ,  Qimei Cui

Inventor： Qimei Cui ,  Bowen Cai ,  Tao Cui ,  Xiaofeng Tao

IPC: H04B7/00 ,  H04W4/00 ,  H04W76/28 ,  H04W16/14 ,  H04W24/04

Abstract: The present invention relates to user equipment, an electronic device, a wireless communication method, and a storage medium. According to the present invention, the user equipment comprises a processing circuit, configured to: detect a physical downlink control channel (PDCCH) on a first bandwidth part of an unlicensed frequency band in a detection time of a discontinuous reception (DRX) period; and detect the PDCCH on a second bandwidth part of the unlicensed frequency band when the PDCCH is not detected on the first bandwidth part. By using the user equipment, the electronic device, the wireless communication method, and the storage medium in the present invention, a DRX mechanism of the user equipment operating on the unlicensed frequency band can be improved.

公开(公告)号：US11043991B2

公开(公告)日：2021-06-22

申请号：US16362707

申请日：2019-03-25

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04L1/00 ,  H04L1/20

Abstract: A method and device for feeding back downlink channel feedback information, and a method and device for user pairing. The method for feeding back downlink channel feedback information includes: calculating the multi-user channel quality indication error of a user, which error is used to reflect the difference in channel quality indication between the situation of multi-user multiple input multiple output transmission and the situation of single user multiple input multiple output transmission; adding the multi-user channel quality indication error into the downlink channel feedback information which includes a pre-coding matrix indication and a channel quality indication, and feeding the same back to a base station for scheduling. Therefore, the bit error rate of demodulation in the MIMO system can be reduced and the system performance can be improved.

公开(公告)号：US10820308B2

公开(公告)日：2020-10-27

申请号：US14430064

申请日：2013-08-15

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Jiang Han ,  Liang Zeng ,  Yingni Zhang

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04L27/26 ,  H04W88/02 ,  H04W88/08

Abstract: A communications system includes a base station device and a terminal device. The base station device configures an enhanced Physical Downlink Control Channel (ePDCCH), comprising: circuitry, configured to determine ePDCCH position indication information adapted to indicate a position of the ePDCCH in a terminal device search space based on configuration of Demodulation Reference Signal, wherein ePDCCH comprises control information of the terminal device and is aggregated by a number of enhanced control channel elements, each enhanced control channel element consisting of a set of resource elements; and generate a signaling comprising the ePDCCH position indication information for the terminal device.

公开(公告)号：US10743263B2

公开(公告)日：2020-08-11

申请号：US16066224

申请日：2017-01-24

Applicant: SONY CORPORATION ,  Qimei Cui ,  Haowei Wang ,  Xiaofeng Tao ,  Bingshan Hu

Inventor： Qimei Cui ,  Haowei Wang ,  Xiaofeng Tao ,  Bingshan Hu

IPC: H04W52/36 ,  H04W72/14 ,  H04W72/12 ,  H04W24/10 ,  H04W52/38 ,  H04W52/14 ,  H04W16/14

Abstract: A wireless communication system, an apparatus, and a method in a wireless communication system. The apparatus includes a processing circuit. The processing circuit is configured to: detect whether a pre-set power margin reporting trigger event is satisfied; and trigger, if the pre-set power margin reporting trigger event is satisfied, reporting of a power margin of a user equipment to a base station, wherein the pre-set power margin reporting trigger event includes at least one of the following events: a first event of having detected an idle channel on an unlicensed band; and a second event of having received uplink scheduling licensed signalling from the base station. A power margin in an LAA system can be effectively reported.