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公开(公告)号：US10355809B2
公开(公告)日：2019-07-16
申请号：US14726787
申请日：2015-06-01
发明人： Ming Ding , Lei Huang , Zeng Yang , Renmao Liu
摘要： A Channel State Information (CSI) feedback method and a User Equipment (UE) are disclosed. The method comprises the following steps of: determining a set of coordinated Base Stations (BSs) participating multi-BS coordination, the set of coordination BSs containing a serving BS and at least one non-serving BS; for each BS in the set of coordinated BSs: calculating a Signal to Interference and Noise Ratio (SINR) for a channel between a UE and the BS based on a hypothetical BS coordination mode corresponding to the BS; and deriving a Channel Quality Index (CQI) corresponding to the calculated SINR and feeding back the derived CQI to the serving BS.
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2.发明授权公开(公告)号：US10044477B2
公开(公告)日：2018-08-07
申请号：US14907882
申请日：2014-08-04
发明人： Ming Ding
IPC分类号： H04L5/00 , H04L1/16 , H04B7/04 , H04B7/0456
摘要： The present disclosure provides a method in a base station for Channel State Information (CSI) process configuration and an associated base station. The method comprises: setting CSI process information for a User Equipment (UE) supporting three dimensional (3D) Multiple Input Multiple Output (MIMO), the CSI process information including at least an index of a CSI Reference Signal Resource (CSI-RS-R) for a vertical direction of a 3D MIMO antenna array; and transmitting the set CSI process information to the UE. Also disclosed are a method in a UE for CSI feedback and an associated UE. The method comprises: receiving CSI process information from a base station, the CSI process information including at least an index of a CSI Reference Signal Resource (CSI-RS-R) for a vertical direction of a three dimensional (3D) Multiple Input Multiple Output (MIMO) antenna array; measuring a CSI Reference Signal (CSI-RS) transmitted from the base station over the CSI-RS-R configured by the base station; and feeding CSI information back to the base station based on a measurement result.
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公开(公告)号：US20150049692A1
公开(公告)日：2015-02-19
申请号：US14382788
申请日：2013-03-12
发明人： Ming Ding , Lei Huang , Renmao Liu
CPC分类号： H04L5/0057 , H04B7/024 , H04B7/0626 , H04B7/0632 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0026 , H04L1/0028 , H04L1/0031 , H04L5/0023 , H04L5/0053
摘要： A Channel State Information (CSI) feedback method and a user equipment (UE) are provided. The CSI feedback method comprises: selecting a communication resource by which non-coherent Joint Transmission (JT) is performed, wherein the non-coherent JT achieves a performance target by using the selected communication resource; and feeding back, to a Base Station (BS) participating in the non-coherent JT, an indication of the selected communication resource as enhanced CSI.
摘要翻译： 提供信道状态信息（CSI）反馈方法和用户设备（UE）。 CSI反馈方法包括：选择执行非相干联合传输（JT）的通信资源，其中所述非相干JT通过使用所选择的通信资源实现性能目标; 并向参与非相干JT的基站（BS）反馈所选择的通信资源的指示作为增强的CSI。
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公开(公告)号：US09814023B2
公开(公告)日：2017-11-07
申请号：US14655634
申请日：2013-12-27
发明人： Feng Wang , Renmao Liu , Ming Ding
CPC分类号： H04W72/02 , H04B1/707 , H04J1/12 , H04L5/0023 , H04L5/0026 , H04L5/0048 , H04L5/0053 , H04L5/0073 , H04L5/0092
摘要： The present invention provides a method carried out by a base station, including: a step (S320) of generating a code sequence containing system information of the base station; a step (S330) generating, by modulating the code sequence, a physical broadcast channel (PBCH) sequence including a distributed PRB frequency division multiplexing format or a centralized PRB frequency division multiplexing format; a step (S340) of selecting a physical resource block (PRB) for a PBCH contained in the PBCH sequence; and a step (S350) of carrying out mapping between the PBCH and a resource element (RE) in the PRB thus selected. The present invention also provides (i) a method carried out by a user equipment, (ii) a corresponding base station, and (iii) the corresponding user equipment. According to the present invention, it is possible to increase energy use efficiency of an LTE-Advanced system, improve spectral efficiency, and reduce inter-cell collision of time/frequency resources.
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公开(公告)号：US09712214B2
公开(公告)日：2017-07-18
申请号：US14771142
申请日：2013-12-27
发明人： Ming Ding , Renmao Liu
IPC分类号： H04W4/00 , H04B7/024 , H04B7/0417 , H04B7/06 , H04B7/04
CPC分类号： H04B7/024 , H04B7/0417 , H04B7/0486 , H04B7/0626 , H04B7/0632
摘要： The present disclosure provides a method in a UE for feeding back channel state information (CSI) and the UE. The method comprises: acquiring a set of CSI processes which are configured by a transmission point (TP) to participate in multi-antenna multi-TP coordination; acquiring a sub-band (SB) inheritance which is configured by a TP for a CSI process from the set of CSI processes; calculating the CSI based on the configuration for the CSI process; and feeding the calculated CSI back to a TP. The present disclosure has the advantages of simple implementation and low signalling overhead and is applicable to enhanced 4G systems and to 5G systems.
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公开(公告)号：US10530545B2
公开(公告)日：2020-01-07
申请号：US15945581
申请日：2018-04-04
发明人： Yingyu Zhang , Renmao Liu , Ming Ding , Yongming Liang , Zeng Yang
IPC分类号： H04L5/00 , H04B7/0426 , H04W52/14 , H04W52/22 , H04W52/42 , H04B7/0452
摘要： A user equipment receives, from the base station apparatus, bit information. The bit information indicates first information indicating one or more antenna ports and second information indicating a number of layers for downlink data symbols.
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公开(公告)号：US09954660B2
公开(公告)日：2018-04-24
申请号：US14563715
申请日：2014-12-08
发明人： Yingyu Zhang , Renmao Liu , Ming Ding , Yongming Liang , Zeng Yang
IPC分类号： H04L5/00 , H04B7/0426 , H04W52/14 , H04W52/22 , H04W52/42 , H04B7/0452
CPC分类号： H04L5/0048 , H04B7/0426 , H04B7/0452 , H04L5/0023 , H04L5/0051 , H04L5/0091 , H04L5/0094 , H04W52/143 , H04W52/22 , H04W52/225 , H04W52/228 , H04W52/42
摘要： A user equipment receives, from the base station apparatus, bit information. The bit information indicates first information indicating one or more antenna ports and second information indicating a number of layers for downlink data symbols.
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公开(公告)号：US09537554B2
公开(公告)日：2017-01-03
申请号：US14618796
申请日：2015-02-10
发明人： Ming Ding , Renmao Liu , Zeng Yang , Yongming Liang , Yingyu Zhang
CPC分类号： H04B7/0486 , H04B7/063 , H04B7/0639 , H04B7/0658 , H04L1/0029 , H04L1/0073 , H04L25/03898 , H04W72/0413
摘要： A user equipment generates information based on a plurality of values of joint coding of a Rank Index RI and a first Precoding Matrix Index W1 and transmits the information on a physical uplink control channel. The payload size of the information is 5 bits. The first Precoding Matrix Index W1 and a second Precoding Matrix Index W2 correspond to a precoding matrix and 16 values in the plurality of values correspond to the Rank Index RI of 1 or 2 where a part of values in the plurality of values except the 16 values in the plurality of values correspond to the Rank Index RI of more than 2.
摘要翻译： 用户设备基于秩索引RI和第一预编码矩阵索引W1的联合编码的多个值生成信息，并且在物理上行链路控制信道上发送该信息。 信息的有效载荷大小为5位。 第一预编码矩阵索引W1和第二预编码矩阵索引W2对应于预编码矩阵，并且多个值中的16个值对应于1或2的秩索引RI，其中除了16个值之外的多个值中的一部分值 在多个值中对应的Rank Index RI大于2。
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9.发明申请METHODS FOR CONSTRUCTING PRE-CODING MATRIX AND FEEDING BACK INDEX VALUE AND RELATED COMMUNICATION DEVICES 审中-公开建立预编码矩阵和反馈索引值的方法及相关通信设备公开(公告)号：US20150244438A1
公开(公告)日：2015-08-27
申请号：US14425238
申请日：2013-08-07
发明人： Ming Ding , Renmao Liu , Lei Huang
CPC分类号： H04B7/0473 , H04B7/0404 , H04B7/0417 , H04B7/0469 , H04B7/0478 , H04B7/0482 , H04B7/0634 , H04B7/0639 , H04L1/00 , H04L25/0204 , H04L25/0391
摘要： The disclosure provides a method for constructing a three-dimensional (3D) multi-input multi-output (MIMO) pre-coding matrix, a method for feeding back index values of a 3D MIMO pre-coding matrix and related communication devices. The method for constructing a 3D MIMO pre-coding matrix comprises: constructing a first component matrix in a block diagonal form, wherein a diagonal sub-matrix of the first component matrix is a 3D beamforming sub-precoder for a two-dimensional (2D) antenna array; constructing a second component matrix which comprises phase weighting factors as matrix elements, wherein the phase weighting factors characterize coherent combination of signals from the 2D antenna array; and constructing the 3D MIMO pre-coding matrix according to the constructed first and second component matrixes. The method for feeding back index values of a 3D MIMO pre-coding matrix comprises: estimating a MIMO channel; and according to a result of the channel estimation, selecting and feeding back a first index value, a second index value and a third index value.
摘要翻译： 本公开提供了一种用于构建三维（3D）多输入多输出（MIMO）预编码矩阵的方法，一种用于反馈3D MIMO预编码矩阵和相关通信设备的索引值的方法。 用于构建3D MIMO预编码矩阵的方法包括：以块对角线形式构造第一分量矩阵，其中第一分量矩阵的对角子矩阵是用于二维（2D）的三维波束成形子预编码器， 天线阵列 构建包括相位加权因子作为矩阵元素的第二分量矩阵，其中相位加权因子表征来自2D天线阵列的信号的相干组合; 以及根据构造的第一和第二分量矩阵构建3D MIMO预编码矩阵。 用于反馈3D MIMO预编码矩阵的索引值的方法包括：估计MIMO信道; 并且根据信道估计的结果，选择并反馈第一索引值，第二索引值和第三索引值。
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公开(公告)号：US09560671B2
公开(公告)日：2017-01-31
申请号：US14770971
申请日：2014-01-13
发明人： Ziyuan Guo , Renmao Liu , Ming Ding
CPC分类号： H04W72/1289 , H04L5/1469 , H04L12/18
摘要： The present disclosure provides a method and base station for transmitting scheduling information. The method comprises: determining that a downlink subframe corresponding to the uplink subframe according to a first scheduling timing corresponding to a first Time Division Duplex (TDD) uplink and downlink configuration scheme of a plurality of TDD uplink and downlink configuration schemes is unavailable for transmitting the scheduling information; obtaining a first equivalent TDD uplink and downlink configuration scheme by treating one or more downlink subframes, including the downlink subframe, in a radio frame as uplink subframes; selecting a downlink subframe corresponding to the uplink subframe according to a second scheduling timing corresponding to a second TDD uplink and downlink configuration scheme of the plurality of TDD uplink and downlink configuration schemes, wherein a set of downlink subframes specified in the second TDD uplink and downlink configuration scheme is a subset of a set of downlink subframes specified in the first equivalent TDD uplink and downlink configuration scheme; and transmitting the scheduling information in the selected downlink subframe.
摘要翻译： 本公开提供了一种用于发送调度信息的方法和基站。 该方法包括：根据对应于多个TDD上行链路和下行链路配置方案的第一时分双工（TDD）上行链路和下行链路配置方案的第一调度定时，确定与上行链路子帧对应的下行链路子帧不可用于发送 调度信息; 通过在无线帧中处理包括下行链路子帧的一个或多个下行链路子帧作为上行链路子帧来获得第一等效TDD上行链路和下行链路配置方案; 根据与所述多个TDD上行链路和下行链路配置方案中的第二TDD上行链路和下行链路配置方案相对应的第二调度定时，选择与所述上行链路子帧对应的下行链路子帧，其中，在所述第二TDD上行链路和下行链路配置方案中指定的一组下行链路子帧 配置方案是在第一等价TDD上行链路和下行链路配置方案中指定的一组下行链路子帧的子集; 以及在所选择的下行链路子帧中发送调度信息。
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