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    Data packet transmission method and device
    11.
    发明授权
    Data packet transmission method and device 有权

    公开(公告)号：US10687249B2

    公开(公告)日：2020-06-16

    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 ,  H04W76/14 ,  H04W92/18 ,  H04W28/10

    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.

    METHOD AND APPARATUS FOR TRANSMITTING PRECODING MARTRIX INDEX AND PREFORMING PRECODING
    13.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING PRECODING MARTRIX INDEX AND PREFORMING PRECODING 审中-公开
    用于发送预测MARTRIX指数和预取预测的方法和装置

    公开(公告)号：US20150085955A1

    公开(公告)日：2015-03-26

    申请号：US14565979

    申请日：2014-12-10

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Qiang Wu ,  Mattias Frenne ,  Weijun Sun ,  Yongxing Zhou

    IPC: H04B7/04 ,  H04W72/04

    CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/0639 ,  H04B7/0663 ,  H04B7/10 ,  H04L25/03904 ,  H04L25/03942 ,  H04L25/03949 ,  H04W72/0413

    Abstract: A method and an apparatus for sending a Precoding Matrix Index (PMI) and performing precoding are provided in the embodiments of the present invention. The method for sending the PMI comprises the following steps: a user equipment acquires the transmission channel capability of carrying the PMI; according to the transmission channel capability of carrying the PMI, the precoding matrices are selected from a locally-stored first codebook set to form a second codebook set; a first precoding matrix is selected from the second codebook set; an index corresponding to the first precoding matrix is sent to a base station over the transmission channel so as to make the base station can find out the first precoding matrix according to the index and precode the data according to the first precoding matrix. The embodiments of the present invention can realize the flexible configuration and use of the PMI.

    Abstract translation: 在本发明的实施例中提供了用于发送预编码矩阵索引（PMI）和执行预编码的方法和装置。 发送PMI的方法包括以下步骤：用户设备获取携带PMI的传输信道能力; 根据携带PMI的传输信道能力，从本地存储的第一码本集中选择预编码矩阵以形成第二码本集合; 从第二码本集合中选择第一预编码矩阵; 对应于第一预编码矩阵的索引通过传输信道被发送到基站，以使得基站可以根据索引找出第一预编码矩阵，并根据第一预编码矩阵对数据进行预编码。 本发明的实施例可以实现PMI的灵活配置和使用。

    METHOD AND APPARATUS FOR RESOURCE MAPPING AND CODE DIVISION MULTIPLEXING
    14.
    发明申请
    METHOD AND APPARATUS FOR RESOURCE MAPPING AND CODE DIVISION MULTIPLEXING 审中-公开
    用于资源映射和代码段多路复用的方法和装置

    公开(公告)号：US20140092874A1

    公开(公告)日：2014-04-03

    申请号：US14095656

    申请日：2013-12-03

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weijun Sun ,  Yongxing Zhou

    IPC: H04J13/00

    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.

    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。

    Methods and nodes in a wireless communication system
    15.
    发明授权
    Methods and nodes in a wireless communication system 有权

    公开(公告)号：US10205567B2

    公开(公告)日：2019-02-12

    申请号：US14731035

    申请日：2015-06-04

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Fredrik Berggren ,  Weijun Sun

    IPC: H04L5/00 ,  H04W72/00

    Abstract: Methods (700, 900) and nodes (110, 120) for transmission of broadcast information, over at least one antenna port, in a subframe, which transmission is received by a receiver (110) in a wireless communication system (100). The broadcast information is transmitted over a set of antenna ports comprising at least one antenna port, in at least one subframe (300) comprising a set of time-frequency resources, wherein a cell-specific reference signal, CRS, is not transmitted in each subframe (300). The method (700) comprises defining (701) a set of antenna ports for the set of time-frequency resources. Also, the method (700) comprises transmitting (702) the broadcast information on the defined (701) set of antenna ports, thereby using said set of time-frequency resources exclusively, such that they are unused for any other antenna port.

    Method for feeding back channel quality indicator, and method and apparatus for sending resource scheduling information
    16.
    发明授权
    Method for feeding back channel quality indicator, and method and apparatus for sending resource scheduling information 有权

    公开(公告)号：US10194455B2

    公开(公告)日：2019-01-29

    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 ,  H04L1/00

    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.

    Methods and Nodes in a Wireless Communication System
    18.
    发明申请
    Methods and Nodes in a Wireless Communication System 审中-公开

    公开(公告)号：US20180146462A1

    公开(公告)日：2018-05-24

    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

    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.

    User Equipment Sending Signal Directly to User Equipment
    19.
    发明申请
    User Equipment Sending Signal Directly to User Equipment 审中-公开

    公开(公告)号：US20180132251A1

    公开(公告)日：2018-05-10

    申请号：US15864944

    申请日：2018-01-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weijun Sun

    IPC: H04W72/08 ,  H04W72/04

    Abstract: Embodiments provide a method for sending a signal by user equipment and user equipment. The method includes: within an obtained channel detection cycle, detecting a first interference strength within system bandwidth and a second interference strength on each sub-band within the system bandwidth; comparing the first interference strength with a first interference threshold; if the first interference strength is less than the first interference threshold, selecting, from the system bandwidth according to the second interference strength on each sub-band within the system bandwidth, N first sub-bands that receive relatively small interference; and sending a signal on the N first sub-bands. In consideration of interference within the entire bandwidth and interference to each sub-band, when interference to the entire system is relatively small, a transmission collision is avoided. In addition, selecting sub-bands that receive small interference for signal transmission further reduces transmission interference, thereby effectively improving data transmission reliability.

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