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公开(公告)号：US10218473B2
公开(公告)日：2019-02-26
申请号：US14702360
申请日：2015-05-01
发明人： Kunpeng Liu , Liang Xia , Jianghua Liu , Yongxing Zhou
摘要： Embodiments of the present invention provide a control channel detection method, a user equipment, and a base station, where the method includes: acquiring parameter configuration information corresponding to different control channel resource sets, and detecting a control channel in the corresponding different control channel resource sets according to the parameter configuration information, which therefore implements selection of a dynamic node.
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公开(公告)号：US20180262314A1
公开(公告)日：2018-09-13
申请号：US15978513
申请日：2018-05-14
发明人： Liang Xia , Jingyuan Sun , Yongxing Zhou , Xiaotao Ren
CPC分类号： H04L5/0053 , H04L5/0035 , H04L5/0051 , H04L5/0057 , H04L5/0094 , H04W72/0453
摘要： Embodiments of the present disclosure provide a data transmission method, a user equipment, and a base station. The method includes: obtaining a resource element (RE) configuration, where an RE indicated by the RE configuration is a subset of the RE available for sending a channel state information reference signal (CSI-RS) and is the RE onto which a data symbol can be mapped; and receiving, according to the RE configuration, the data symbol that is sent by a base station on the RE indicated by the RE configuration. In some embodiments, a data symbol can be mapped onto the RE that is used for sending the CSI-RS, so that a UE can receive the data symbol on the RE that is used for sending the CSI-RS, thereby improving the utilization efficiency of the RE.
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公开(公告)号：US10075947B2
公开(公告)日：2018-09-11
申请号：US15660980
申请日：2017-07-27
发明人： Jianqin Liu , Kunpeng Liu , Qiang Wu , Yongxing Zhou , Jianghua Liu
CPC分类号： H04W72/042 , H04L5/00 , H04L5/0053 , H04W72/04 , Y02D70/20
摘要： The present invention provides a method for assigning the number of control channel candidates and the number of blind detection times, a base station, and a user equipment. The method includes determining a first aggregation level set {L1i} and determining the number of EPDCCH candidates corresponding to each aggregation level in the {L1i}. {L1i} is formed by N aggregation levels supported by an EPDCCH. A second aggregation level set {L2j} is determined along with the number of EPDCCH candidates corresponding to each aggregation level in the {L2j}. {L2j} is formed by M aggregation levels supported by an EPDCCH to be detected, {L2j} is a subset of {L1i}, and the number of EPDCCH candidates corresponding to L2j in {L2j} is greater than or equal to the number of EPDCCH candidates corresponding to L2j in {L1i}.
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公开(公告)号：US10063299B2
公开(公告)日：2018-08-28
申请号：US15206062
申请日：2016-07-08
发明人： Kunpeng Liu , Leiming Zhang , Jianghua Liu , Yongxing Zhou
IPC分类号： H04B7/04 , H04B7/0456 , H04B7/06 , H04B7/0417 , H04L5/00 , H04W72/04
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0639 , H04B7/0658 , H04L5/0026 , H04W72/0406
摘要： A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.
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公开(公告)号：US09985765B2
公开(公告)日：2018-05-29
申请号：US14461725
申请日：2014-08-18
发明人： Liang Xia , Jingyuan Sun , Yongxing Zhou , Xiaotao Ren
CPC分类号： H04L5/0053 , H04L5/0035 , H04L5/0051 , H04L5/0057 , H04L5/0094 , H04W72/0453
摘要： Embodiments of the present invention provide a data transmission method, a user equipment, and a base station. The method includes: obtaining a resource element RE configuration, where an RE indicated by the RE configuration is a subset of the RE available for sending a channel state information reference signal CSI-RS and is the RE onto which a data symbol can be mapped; and receiving, according to the RE configuration, the data symbol that is sent by a base station on the RE indicated by the RE configuration. In the embodiments of the present invention, a data symbol can be mapped onto the RE that is used for sending the CSI-RS, so that a UE can receive the data symbol on the RE that is used for sending the CSI-RS, thereby improving the utilization efficiency of the RE.
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76.发明申请公开(公告)号：US20180097553A1
公开(公告)日：2018-04-05
申请号：US15834984
申请日：2017-12-07
发明人： Jianguo Wang , Yongxing Zhou
IPC分类号： H04B7/0456 , H04B7/06 , H04L25/03 , H04B7/04
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0617 , H04B7/0639 , H04B7/065 , H04L25/03949
摘要： The present invention relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., eNB), and a system. The method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.
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公开(公告)号：US09913265B2
公开(公告)日：2018-03-06
申请号：US14802555
申请日：2015-07-17
发明人： Lei Guan , Lixia Xue , Yongxing Zhou , Qiang Li , Jingyuan Sun
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0073 , H04L41/12 , H04L45/02 , H04W48/12 , H04W72/04 , H04W88/02
摘要： Embodiments of the present invention provide a detecting method, a transmitting method and an apparatus for a common control channel. The detecting method includes: determining a candidate resource set within virtual downlink resources of a current cell. The candidate resource set can include at least one candidate resource carrying a common control channel of the current cell. A detection is performed on at least one candidate resource in the candidate resource set, so as to acquire the common control channel of the current cell. In the embodiments of the present invention, a selection range of resources for transmitting a common control channel is extended, so that inter-cell interference of the common control channel can be coordinated, and a detection performance of the common control channel can be improved.
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78.发明授权公开(公告)号：US09859962B2
公开(公告)日：2018-01-02
申请号：US14923019
申请日：2015-10-26
发明人： Jianguo Wang , Yongxing Zhou
IPC分类号： H04B7/00 , H04B7/0456 , H04B7/04 , H04B7/06 , H04L25/03
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0617 , H04B7/0639 , H04B7/065 , H04L25/03949
摘要： The present invention relates to a method for determining a precoding matrix indicator, a user equipment UE, a base station eNB, and a system. The method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.
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公开(公告)号：US09838097B2
公开(公告)日：2017-12-05
申请号：US15439686
申请日：2017-02-22
发明人： Jianguo Wang , Yongxing Zhou , Jianghua Liu
IPC分类号： H04B7/02 , H04B7/06 , H04B7/08 , H04B7/0456
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0473 , H04B7/0626 , H04B7/0639
摘要： Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being w1, Z, and w2, that is, w=w1zw2, where both w1 and Z are block diagonal matrices, w1=a formula (I), Z=a formula (II), each of w1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.
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公开(公告)号：US20170331542A1
公开(公告)日：2017-11-16
申请号：US15668531
申请日：2017-08-03
发明人： Jianguo Wang , Yongxing Zhou , Leiming Zhang
IPC分类号： H04B7/06 , H04B7/0413 , G06F17/16 , H04N19/124
CPC分类号： H04B7/0626 , G06F17/16 , H04B7/0413 , H04B7/0634 , H04B7/0639 , H04N19/124
摘要： Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and abase station, to improve feedback precision of channel state information. The method includes: receiving a reference signal sent by a base station; selecting a precoding matrix W from a codebook according to the reference signal, where a column vector of the precoding matrix W may be expressed as α[V ejφv]T, v=[1 ejθ]; and sending a precoding matrix indicator PMI to the base station, where the PMI is corresponding to the selected precoding matrix W. The present invention may further improve quantization precision and achieve balance between overheads and the quantization precision. The base station performs precoding on a sent signal according to a fed back precoding matrix indicator, which can improve precoding precision, thereby improving a data transmission rate and system throughput.
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