公开(公告)号：US20180332571A1

公开(公告)日：2018-11-15

申请号：US16044933

申请日：2018-07-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Branislav Popovic ,  Weijun Sun

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/0224

Abstract: The present disclosure provides a solution which solves the problem of demodulation reference signal (DMRS) ambiguity by introducing separate, i.e. different DMRSs. This is especially the case for systems employing dynamic allocation of control and data signals to different PRBs.

公开(公告)号：US20180132136A1

公开(公告)日：2018-05-10

申请号：US15866274

申请日：2018-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenwei Lu ,  Weijun Sun

IPC: H04W28/06 ,  H04W72/04 ,  H04W72/12

Abstract: The present disclosure provides a data packet transmission method and a device. The method includes: performing, by a transmit end device, channel coding on a to-be-sent data packet, and dividing the coded data packet into at least two data sub-packets; allocating a transmission resource to each data sub-packet; generating control information for each data sub-packet according to transmission resources of the at least two data sub-packets; and sending each data sub-packet and the control information of the data sub-packet on a corresponding transmission resource. A data packet and control information indicating a transmission resource of a data sub-packet are transmitted simultaneously, so that a receive end device can recognize multiple transmissions of a same data packet, and perform joint processing on multiple data sub-packets corresponding to the same data packet to obtain the sent data packet, and data packet transmission reliability is improved.

公开(公告)号：US20160094303A1

公开(公告)日：2016-03-31

申请号：US14868346

申请日：2015-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weijun Sun ,  Yongxing ZHOU

IPC: H04J13/00 ,  H04L5/00

CPC classification number: H04J13/0003 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0073 ,  H04L27/2613 ,  H04L27/262 ,  H04W72/0453

Abstract: The present disclosure discloses a method and an apparatus for resource mapping and code division multiplexing. In the present disclosure, each cell selects a mapping scheme among at least two mapping schemes to implement resource mapping, which effectively reduces interference imposed on reference signal symbols of users at the edge of a cell; vector switching is performed for an orthogonal matrix to obtain multiple different codeword sequences and implement codeword design, so that a problem that the output power of reference signal symbols is unbalanced can be effectively alleviated.

公开(公告)号：US09001765B2

公开(公告)日：2015-04-07

申请号：US13742899

申请日：2013-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxing Zhou ,  Weijun Sun ,  Kunpeng Liu

IPC: H04W4/00 ,  H04B7/216 ,  H04W72/04 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/04 ,  H04L5/0048 ,  H04L5/0051 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0226

Abstract: A method, a base station and a user equipment for transmitting physical resource blocks and estimating channels are provided. The method includes: scheduling, by a base station, M PRBs for the user equipment, and configuring reference signal patterns for the M PRBs as following: allocating (X−1)M+1 demodulation reference signal subcarriers for M PRBs in a frequency domain, configuring only one demodulation reference signal subcarrier within a range of (−N, N] subcarriers in a border of every two PRBs, where locations of the rest (X−2)M+2 demodulation reference signal subcarriers keep consistent with locations of demodulation reference signal subcarriers in M contiguous first demodulation reference signal patterns in a frequency domain; and transmitting the configured M PRBs to the user equipment, so that the user equipment performs joint channel estimation according to the configured M PRBs. This saves reference signal overheads and optimizes data transmission rate.

Abstract translation: 提供了用于发送物理资源块和估计信道的方法，基站和用户设备。 该方法包括：基站为用户设备调度M个PRB，并配置M个PRB的参考信号模式如下：在频域中为M个PRB分配（X-1）M + 1个解调参考信号子载波 在每两个PRB边界的（-N，N）个子载波范围内仅配置一个解调参考信号子载波，其余（X-2）M + 2个解调参考信号子载波的位置与解调的位置保持一致 参考信号子载波在频域中的M个相邻的第一解调参考信号模式中;以及将配置的M PRB发送到用户设备，使得用户设备根据配置的M PRB执行联合信道估计，从​​而节省参考信号开销并优化 数据传输速率。

公开(公告)号：US10575293B2

公开(公告)日：2020-02-25

申请号：US15876737

申请日：2018-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pablo Soldati ,  Fredrik Berggren ,  Weijun Sun

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods and nodes for transmission of downlink control channel signals in a downlink frequency carrier of a wireless communication system, wherein at least two PRB pairs, configurable for the transmission of a downlink control channel have different numbers of time-frequency resource elements available for the transmission of said downlink control channel. The method comprises allocating at least one set S of PRB pairs; arranging time-frequency resource elements from said set S into an aggregation comprising at least one level; determining a set LS of aggregation levels supported for the transmission of a downlink control channel within the allocated set of PRB pairs, based on the number of time-frequency resource elements available for the transmission of a downlink control channel in PRB pairs of the set S; and transmitting the downlink control channel within said set S of PRB pairs.

公开(公告)号：US09900877B2

公开(公告)日：2018-02-20

申请号：US14803992

申请日：2015-07-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pablo Soldati ,  Fredrik Berggren ,  Weijun Sun

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0005 ,  H04L5/0053 ,  H04W72/044

Abstract: Methods and nodes for transmission of downlink control channel signals in a downlink frequency carrier of a wireless communication system, wherein at least two PRB pairs, configurable for the transmission of a downlink control channel have different numbers of time-frequency resource elements available for the transmission of said downlink control channel. The method comprises allocating at least one set S of PRB pairs; arranging time-frequency resource elements from said set S into an aggregation comprising at least one level; determining a set LS of aggregation levels supported for the transmission of a downlink control channel within the allocated set of PRB pairs, based on the number of time-frequency resource elements available for the transmission of a downlink control channel in PRB pairs of the set S; and transmitting the downlink control channel within said set S of PRB pairs.

公开(公告)号：US20160381697A1

公开(公告)日：2016-12-29

申请号：US15263165

申请日：2016-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Weijun Sun ,  Leiming Zhang ,  Jianghua Liu

IPC: H04W72/12 ,  H04B7/06

CPC classification number: H04W72/1231 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0029

Abstract: Embodiments of the present invention provide a method for feeding back a channel quality indicator, and a method and an apparatus for sending resource scheduling information. An apparatus for feeding back a channel quality indicator includes: a determining module, configured to determine a feedback granularity of a CQI according to a system bandwidth, a CQI feedback mode, and antenna port quantity information specified by a network device; and a feedback module, configured to feed back the CQI to the network device according to the feedback granularity of the CQI. The method for feeding back a channel quality indicator, and the method and the apparatus for sending resource scheduling information provided in the embodiments of the present invention are used to reduce system overheads.

Abstract translation: 本发明的实施例提供了一种用于反馈信道质量指示符的方法，以及用于发送资源调度信息的方法和装置。 用于反馈信道质量指示符的装置包括：确定模块，被配置为根据系统带宽，CQI反馈模式和由网络设备指定的天线端口数量信息来确定CQI的反馈粒度; 以及反馈模块，被配置为根据CQI的反馈粒度将CQI反馈到网络设备。 用于反馈信道质量指示符的方法，以及用于发送本发明的实施例中提供的资源调度信息的方法和装置用于减少系统开销。

公开(公告)号：US09461726B2

公开(公告)日：2016-10-04

申请号：US14618755

申请日：2015-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxing Zhou ,  Weijun Sun

IPC: H04B7/04 ,  H04L25/03 ,  H04B7/06 ,  H04B7/10

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/10 ,  H04L25/0391

Abstract: A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna, where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore, the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation, dual-polarization weak correlation, single-polarization strong correlation, and single-polarization weak correlation, etc.

公开(公告)号：US08971440B2

公开(公告)日：2015-03-03

申请号：US14188325

申请日：2014-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxing Zhou ,  Weijun Sun

IPC: H04B7/02 ,  H04L1/02 ,  H04L25/03 ,  H04B7/04 ,  H04B7/06 ,  H04B7/10

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/10 ,  H04L25/0391

Abstract: A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna, where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore, the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation, dual-polarization weak correlation, single-polarization strong correlation, and single-polarization weak correlation, etc.

Abstract translation: 提供了一种生成码本的方法以及用于数据传输的方法和装置。 该方法包括：接收由用户设备（UE）发送的码字的标签; 从码本中选择由标签识别的码字用于八天线; 以及通过使用码字来发送的编码数据。 用于八天线的码本包括用于八天线的至少一个八级码字。 通过将用于八天线的旋转矩阵的逆矩阵与由四天线的秩-4码字形成的八维矩阵相乘来生成八天线的秩8码字; 或通过扩展用于八天线的秩-4码字来生成，其中根据用于四天线的码字生成用于八天线的秩-4码字。 因此，八天线码本中的码字适用于双极化强相关，双极化弱相关，单极化强相关，单极化弱相关等场景。

公开(公告)号：US20130114392A1

公开(公告)日：2013-05-09

申请号：US13729729

申请日：2012-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weijun Sun ,  Yongxing Zhou

IPC: H04W72/04

CPC classification number: H04J13/0003 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0073 ,  H04L27/2613 ,  H04L27/262 ,  H04W72/0453

Abstract: The present disclosure discloses a method and an apparatus for resource mapping and code division multiplexing. In the present disclosure, each cell selects a mapping scheme among at least two mapping schemes to implement resource mapping, which effectively reduces interference imposed on reference signal symbols of users at the edge of a cell; vector switching is performed for an orthogonal matrix to obtain multiple different codeword sequences and implement codeword design, so that a problem that the output power of reference signal symbols is unbalanced can be effectively alleviated.

Abstract translation: 本公开公开了一种用于资源映射和码分复用的方法和装置。 在本公开中，每个小区在至少两个映射方案中选择映射方案以实现资源映射，其有效地减少施加在小区边缘的用户的参考信号符号的干扰; 对于正交矩阵执行向量切换以获得多个不同的码字序列并实现码字设计，从而可以有效地减轻参考信号符号的输出功率不平衡的问题。