公开(公告)号：US20130201862A1

公开(公告)日：2013-08-08

申请号：US13878581

申请日：2011-10-21

申请人： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

发明人： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

IPC分类号： H04B7/04

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0689 ,  H04L1/0026 ,  H04L1/20

摘要： 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.

摘要翻译： 用于反馈下行链路信道反馈信息的方法和装置，以及用于用户配对的方法和装置。 反馈下行链路信道反馈信息的方法包括：计算用户的多用户信道质量指示误差，该误差用于反映多用户多输入多输出传输情况与信道质量指示之间的差异， 单用户多输入多输出情况; 将多用户信道质量指示误差添加到包括预编码矩阵指示和信道质量指示的下行链路信道反馈信息中，并将其馈送到基站进行调度。 因此，可以降低MIMO系统中的解调误码率，提高系统性能。

公开(公告)号：US10743263B2

公开(公告)日：2020-08-11

申请号：US16066224

申请日：2017-01-24

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

发明人： Qimei Cui ,  Haowei Wang ,  Xiaofeng Tao ,  Bingshan Hu

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

摘要： 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.

公开(公告)号：US20120300656A1

公开(公告)日：2012-11-29

申请号：US13522374

申请日：2011-01-30

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

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

IPC分类号： H04W24/02

CPC分类号： H04B7/0639 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04L1/0026 ,  H04W72/042 ,  H04W76/15

摘要： 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.

摘要翻译： 本发明提供了基于码本的信道信息反馈方法，装置和系统。 基于码本的信道信息反馈方法包括：通信系统中的终端测量终端与通信系统的基站之间的下行链路信道的参数; 通过使用下行链路信道的参数从预编码码本中选择多个预编码矩阵，其中多个预编码矩阵可以由单用户多输入多输出（MIMO）传输模式和多用户 MIMO传输模式，预编码码本是预编码矩阵的聚合; 并向基站反馈用于指示多个预编码矩阵的第一信息。

公开(公告)号：US10298297B2

公开(公告)日：2019-05-21

申请号：US13878581

申请日：2011-10-21

申请人： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

发明人： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

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

摘要： 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：US09007995B2

公开(公告)日：2015-04-14

申请号：US13522374

申请日：2011-01-30

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

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

IPC分类号： H04W4/00 ,  H04B7/06 ,  H04L1/00 ,  H04B7/04

CPC分类号： H04B7/0639 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04L1/0026 ,  H04W72/042 ,  H04W76/15

摘要： 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.

摘要翻译： 本发明提供了基于码本的信道信息反馈方法，装置和系统。 基于码本的信道信息反馈方法包括：通信系统中的终端测量终端与通信系统的基站之间的下行链路信道的参数; 通过使用下行链路信道的参数从预编码码本中选择多个预编码矩阵，其中多个预编码矩阵可以由单用户多输入多输出（MIMO）传输模式和多用户 MIMO传输模式，预编码码本是预编码矩阵的聚合; 并向基站反馈用于指示多个预编码矩阵的第一信息。

公开(公告)号：US10243708B2

公开(公告)日：2019-03-26

申请号：US14771419

申请日：2013-12-26

申请人： Qimei Cui ,  Ting Fu ,  Mingliang Tao ,  Zhongbin Qin

发明人： Qimei Cui ,  Ting Fu ,  Mingliang Tao ,  Zhongbin Qin

IPC分类号： H04L5/00 ,  H04L1/18 ,  H04L12/841 ,  H04W72/04 ,  H04W88/08

摘要： A method performing dynamic downlink configuration in a wireless communications system, a base station, and a terminal. The method includes: setting a reconfiguration point to enable a first uplink and downlink subframe configuration to be adopted in a first configuration period before the reconfiguration point and enable a second uplink and downlink subframe configuration to be adopted in a second configuration period after the reconfiguration point; and adopting a reference uplink/downlink subframe configuration adapted for an uplink subframe intersection of respective uplink/downlink subframe configurations for a time sequence of a downlink HARQ process during the predetermined change of the dynamical downlink configuration. The resource utilization rate during the TDD uplink and downlink configuration and reconfiguration can be effectively ensured, the time sequence conflict can be solved, the process can be coordinated, the user throughput can be ensured, and the transmission delay can be reduced as far as possible.

公开(公告)号：US11388772B2

公开(公告)日：2022-07-12

申请号：US16954215

申请日：2019-04-30

申请人： Sony Corporation ,  Qimei Cui

发明人： Qimei Cui ,  Bowen Cai ,  Tao Cui ,  Xiaofeng Tao

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

摘要： 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：US20150282128A1

公开(公告)日：2015-10-01

申请号：US14430064

申请日：2013-08-15

申请人： Qimei Cui ,  Jiang Han ,  Liang Zeng ,  Yingni Zhang

发明人： Qimei Cui ,  Jiang Han ,  Liang Zeng ,  Yingni Zhang

IPC分类号： H04W72/04 ,  H04W16/14 ,  H04L27/26

摘要： 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.

摘要翻译： 通信系统包括基站装置和终端装置。 基站设备配置增强物理下行链路控制信道（ePDCCH），包括：电路，被配置为基于解调参考信号的配置来确定适于指示终端设备搜索空间中的ePDCCH的位置的ePDCCH位置指示信息，其中ePDCCH 包括终端设备的控制信息，并被多个增强控制信道单元聚合，每个增强控制信道单元由一组资源单元组成; 并生成包括终端设备的ePDCCH位置指示信息的信令。