公开(公告)号：US20140348123A1

公开(公告)日：2014-11-27

申请号：US14336345

申请日：2014-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingyu ZHOU ,  Qiang WU ,  Lei GUAN

IPC: H04W72/02 ,  H04W72/04

CPC classification number: H04W72/02 ,  H04L5/0053 ,  H04W28/20 ,  H04W72/042 ,  H04W72/1268 ,  H04W72/1278

Abstract: The present invention provides a method and a device for transmitting control signaling. The method includes: determining a first resource set and a second resource set, where the first resource set and the second resource set are two resource sets in each TTI that do not overlap; and transmitting control signaling in the first resource set and the second resource set respectively, where, in the first resource set, control signaling allocated to each UE can occupy all reserved bandwidth, and in the second resource set, control signaling allocated to each UE can occupy a part of all reserved bandwidth. Embodiments of the present invention can reduce complexity of blind detection of a UE.

Abstract translation: 本发明提供一种用于发送控制信令的方法和装置。 该方法包括：确定第一资源集合和第二资源集合，其中第一资源集合和第二资源集合是每个TTI中不重叠的两个资源集合; 以及分别在所述第一资源集合和所述第二资源集合中发送控制信令，其中，在所述第一资源集合中，分配给每个UE的控制信令可以占据所有预留带宽，并且在所述第二资源集中，分配给每个UE的控制信令 占据所有预留带宽的一部分。 本发明的实施例可以降低UE的盲检测的复杂度。

公开(公告)号：US20140105162A1

公开(公告)日：2014-04-17

申请号：US14134932

申请日：2013-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaojun LI ,  Yongxia WU ,  Qiang WU ,  Jianghua LIU

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/0417 ,  H04L5/0091

Abstract: The present invention discloses a method and an apparatus for transmitting control signaling. The method includes: determining that a physical downlink shared channel PDSCH transmission scheme for a non-backward compatible component carrier is a user equipment-specific reference signal UE RS-based non-precoding matrix indicator Non-PMI feedback transmission scheme or a UE RS-based up to 8 layer transmission scheme; and sending downlink control information DCI to a UE, where the DCI is used to indicate the determined PDSCH transmission scheme. The apparatus includes a determining module and a first sending module. The method and apparatus in embodiments of the present invention can expand application scenarios of the non-backward compatible component carrier, increase spectrum utilization of the system, and avoid a system capacity decrease problem caused by limitations on the application scenarios of the non-backward compatible component carrier.

Abstract translation: 本发明公开了一种用于发送控制信令的方法和装置。 该方法包括：确定用于非向后兼容分量载波的物理下行链路共享信道PDSCH传输方案是基于用户设备的参考信号基于UE RS的非预编码矩阵指示符非PMI反馈传输方案或UE RS- 基于8层传输方案; 并向UE发送下行链路控制信息DCI，其中DCI用于指示所确定的PDSCH传输方案。 该装置包括确定模块和第一发送模块。 本发明的实施例中的方法和装置可以扩展非向后兼容分量载波的应用场景，增加系统的频谱利用率，并避免系统容量减少问题，这是由于对非向后兼容的应用场景的限制 分量载体。

公开(公告)号：US20180034613A1

公开(公告)日：2018-02-01

申请号：US15729400

申请日：2017-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Qiang WU

IPC: H04L5/00 ,  H04W24/10

Abstract: The present invention relates to the communications field, and provides a channel measurement method, a base station, and UE, to perform channel measurement without affecting downlink data transmission. The method includes: obtaining, by UE, a reference signal resource mapping diagram, and obtaining a reference signal according to the reference signal resource mapping diagram; performing, by the UE, channel measurement according to the reference signal to determine channel state information, and feeding back the channel state information to a base station, where the reference signal resource mapping diagram is a location to which a time-frequency resource of the reference signal is mapped, the reference signal resource mapping diagram is a first reference signal resource mapping diagram or a second reference signal resource mapping diagram.

公开(公告)号：US20170012684A1

公开(公告)日：2017-01-12

申请号：US15274240

申请日：2016-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/065 ,  H04W88/02

Abstract: Embodiments of the present invention disclose a precoding matrix indicator feedback method, receiving method, and apparatus. User equipment UE receives a reference signal sent by a base station; the UE selects, based on the reference signal, a precoding matrix for each first subband of N first subbands in a system transmission bandwidth from a codebook, where the codebook includes at least two precoding matrixes, and each precoding matrix is denoted by at least a first precoding matrix indicator PMI and a second PMI, where each first subband of the N first subbands corresponds to a second PMI, and each second subband of M second subbands corresponds to a first PMI; and the UE feeds back the first PMI corresponding to each second subband to the base station, and feeds back the second PMI corresponding to each first subband to the base station.

Abstract translation: 本发明的实施例公开了一种预编码矩阵指示器反馈方法，接收方法和装置。 用户设备UE接收基站发送的参考信号; 基于参考信号，UE从码本的系统传输带宽中选择N个第一子带的每个第一子带的预编码矩阵，其中码本包括至少两个预编码矩阵，并且每个预编码矩阵由至少一个 第一预编码矩阵指示符PMI和第二PMI，其中N个第一子带的每个第一子带对应于第二PMI，并且M个第二子带的每个第二子带对应于第一PMI; 并且UE将与每个第二子带相对应的第一PMI反馈给基站，并将与每个第一子带对应的第二PMI反馈给基站。

公开(公告)号：US20160050000A1

公开(公告)日：2016-02-18

申请号：US14924395

申请日：2015-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU

IPC: H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0417 ,  H04B1/0475 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03006

Abstract: The present invention provides a precoding matrix indicator feedback method, a receive end, and a transmit end. The method includes: selecting, by a receive end based on a reference signal, a precoding matrix W from a codebook, where a coefficient α is used to perform phase adjustment on φn in W, φn represents a phase difference between weighted values of a first antenna group and a second antenna group of a transmit end for a transmission signal from a same transmission layer, ϕ n ∈ {  j2π   n Q } , and the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (PMI) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna configurations, and improve precision of the receive end to feed back a PMI.

Abstract translation: 本发明提供预编码矩阵指示符反馈方法，接收端和发送端。 该方法包括：基于参考信号的接收端选择来自码本的预编码矩阵W，其中使用系数α对W进行相位调整，n表示加权的相位差 来自同一传输层的传输信号的发射端的第一天线组和第二天线组的值; n∈{j2＆pgr; 第一天线组和第二天线组属于相同的多天线系统; 并且由接收端将发送端的预编码矩阵指示符（PMI）发送给发送端。 以这种方式，使用系数α来执行相位调整可以增加适用于不同天线配置的码本集的大小，并且提高接收端的反馈PMI的精度。

公开(公告)号：US20150381249A1

公开(公告)日：2015-12-31

申请号：US14844714

申请日：2015-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU ,  Jianguo WANG

IPC: H04B7/04 ,  H04L1/00 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0639 ,  H04B7/0691 ,  H04L1/0026

Abstract: The present disclosure provides a method for feeding back a precoding matrix indicator, a receive end and a transmit end, where the method includes: selecting, by a receive end, a precoding matrix W from a codebook based on a reference signal, where W ∈ [ X 1  ( θ 1 )  X 2  ( θ 2 , ϕ n ) ] , the θ1 and the θ2 indicate a phase difference of weighted values for signal transmission between two neighboring antennas in a first antenna group of a transmit end and a phase difference of weighted values for signal transmission between two neighboring antennas in a second antenna group of the transmit end, the φn indicates a phase difference of weighted values for signal transmission between the first antenna group and the second antenna group, where the signal transmission between the first antenna group and the second antenna group is for a same transmission layer, ϕ n =  j   2  π   n M , and sending, by the receive end, a precoding matrix indicator PMI to the transmit end.

Abstract translation: 本公开提供了一种用于反馈预编码矩阵指示符，接收端和发送端的方法，其中该方法包括：基于参考信号从码本中选择预编码矩阵W，其中W∈ [X 1（＆Thetas; 1）X 2（＆Thetas; 2，＆phis; n）]，＆amp; t; 1和＆amp; t; 2表示第一个相邻天线之间的信号传输的加权值的相位差 发送端的天线组和发送端的第二天线组中的两个相邻天线之间的信号传输的加权值的相位差，＆amp; n表示第一天线组和第一天线组之间的信号传输的加权值的相位差 第二天线组，其中第一天线组和第二天线组之间的信号传输用于相同的传输层， n =j2 2＆pgr 并且由接收端向发送端发送预编码矩阵指示符PMI。

公开(公告)号：US20150304010A1

公开(公告)日：2015-10-22

申请号：US14788191

申请日：2015-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Yongxing ZHOU ,  Jianghua LIU ,  Qiang WU ,  Jianguo WANG

IPC: H04B7/06 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0621 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/005 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/0246 ,  H04L25/03343 ,  H04L25/03898 ,  H04W88/02 ,  H04W88/08

Abstract: A channel state information (CSI) reporting method is provided. A reference signal is received from a base station. A precoding matrix is selected, based on the reference signal, from a codebook, where the codebook includes a precoding matrix W and W=αSV, where a matrix V is an N×ν matrix, N is the number of reference signal ports, ν≦N, S is a row selection matrix used to select one or more row vectors from the matrix V, and α is a constant. CSI is sent to the base station, where the CSI includes a precoding matrix indicator PMI and the PMI is corresponding to the selected precoding matrix. A suitable precoding matrix can be selected according to an interference situation, so as to select an antenna for transmitting data and power of the antenna.

Abstract translation: 提供了一种信道状态信息（CSI）报告方法。 从基站接收参考信号。 基于参考信号从码本中选择预编码矩阵，其中码本包括预编码矩阵W和W =αSV，其中矩阵V是N×＆ngr; 矩阵，N是参考信号端口的数量，＆ngr;＆nlE; N，S是用于从矩阵V中选择一个或多个行向量的行选择矩阵，α是常数。 将CSI发送到基站，其中CSI包括预编码矩阵指示符PMI，并且PMI对应于所选择的预编码矩阵。 可以根据干扰情况选择合适的预编码矩阵，以便选择用于发送天线的数据和功率的天线。

公开(公告)号：US20140233474A1

公开(公告)日：2014-08-21

申请号：US14182558

申请日：2014-02-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang WU ,  Yiqun QIAN ,  Yang LI ,  Jianghua LlU

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0053 ,  H04W72/042

Abstract: The present invention discloses a method, a device and a system for transmitting an enhanced downlink control channel, which belong to the communications field. The method for sending an enhanced downlink control channel includes: presetting a multiplexing unit, where the multiplexing unit includes at least one resource block pair, and the at least one resource block pair includes E-PDCCH resources and DM RS resources, and the E-PDCCH resources include multiple control channel elements; sending at least one E-PDCCH corresponding to at least one UE in at least one control channel element of the multiplexing unit, and sending the DM RS corresponding to the at least one UE. The present invention reduces the granularity of an enhanced downlink control channel, saves resources and enhances the downlink control channel, thereby providing more control channels for the UE to use.

Abstract translation: 本发明公开了一种属于通信领域的用于发送增强型下行链路控制信道的方法，装置和系统。 用于发送增强型下行链路控制信道的方法包括：预先配置多路复用单元，其中多路复用单元包括至少一个资源块对，并且所述至少一个资源块对包括E-PDCCH资源和DM RS资源， PDCCH资源包括多个控制信道单元; 在所述复用单元的至少一个控制信道单元中发送对应于至少一个UE的至少一个E-PDCCH，以及发送对应于所述至少一个UE的DM RS。 本发明降低增强下行链路控制信道的粒度，节省资源，增强下行链路控制信道，从而为UE提供更多的控制信道。

公开(公告)号：US20180062669A1

公开(公告)日：2018-03-01

申请号：US15805996

申请日：2017-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang WU ,  Chao LI ,  Yongxing ZHOU

IPC: H03M13/29 ,  H04L1/00 ,  H03M13/00

CPC classification number: H03M13/2906 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/2707 ,  H03M13/2778 ,  H03M13/29 ,  H03M13/2933 ,  H03M13/2936 ,  H03M13/2966 ,  H03M13/35 ,  H03M13/613 ,  H03M13/6356 ,  H03M13/6516 ,  H04L1/00 ,  H04L1/0041

Abstract: This application discloses a coding method and a communications device. The coding method includes: determining, by a communications device, a second transport block, where the second transport block includes a first transport block and check information corresponding to the first transport block; determining, by the communications device according to scheduling information of the second transport block, a scheme for performing outer-code coding on the second transport block; determining, by the communications device, a third transport block, where when the scheduling information meets a preset condition, the third transport block is a transport block obtained by performing outer-code coding on the second transport block, or when the scheduling information does not meet a preset condition, the third transport block is specifically the second transport block; and performing, by the communications device, inner-code coding on the third transport block according to a predefined rule.

公开(公告)号：US20170170883A1

公开(公告)日：2017-06-15

申请号：US15398551

申请日：2017-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU

IPC: H04B7/0417 ,  H04B7/04 ,  H04B7/0452 ,  H04B1/04

CPC classification number: H04B7/0417 ,  H04B1/0475 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03006

Abstract: The present invention provides a precoding matrix indicator feedback method, a receive end, and a transmit end. The method includes: selecting, by a receive end based on a reference signal, a precoding matrix W from a codebook, where a coefficient α is used to perform phase adjustment on φn in W, φn represents a phase difference between weighted values of a first antenna group and a second antenna group of a transmit end for a transmission signal from a same transmission layer, ϕ n ∈ { e j   2   π   n Q } , and the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (PMI) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna configurations, and improve precision of the receive end to feed back a PMI.