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    Method and apparatus for resource mapping and code division multiplexing
    22.
    发明授权
    Method and apparatus for resource mapping and code division multiplexing 有权
    用于资源映射和码分复用的方法和装置

    公开(公告)号：US09166720B2

    公开(公告)日：2015-10-20

    申请号：US14095656

    申请日：2013-12-03

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Weijun Sun ,  Yongxing Zhou

    IPC: H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04L5/00 ,  H04L27/26 ,  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。

    Method and apparatus for transmitting precoding matrix index and preforming precoding
    23.
    发明授权
    Method and apparatus for transmitting precoding matrix index and preforming precoding 有权
    用于发送预编码矩阵索引和预编码预编码的方法和装置

    公开(公告)号：US09124321B2

    公开(公告)日：2015-09-01

    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: H04B7/10 ,  H04B7/04 ,  H04B7/06 ,  H04L25/03 ,  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 TRANSMITTING PRECODING MARTRIX INDEX AND PERFORMING PRECODING
    25.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING PRECODING MARTRIX INDEX AND PERFORMING PRECODING 有权
    用于发送预测MARTRIX指数和执行预测的方法和装置

    公开(公告)号：US20130058428A1

    公开(公告)日：2013-03-07

    申请号：US13667402

    申请日：2012-11-02

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04L25/49 ,  H04B15/02

    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。

    User equipment sending signal directly to user equipment
    27.
    发明授权
    User equipment sending signal directly to user equipment 有权

    公开(公告)号：US10560950B2

    公开(公告)日：2020-02-11

    申请号：US15864944

    申请日：2018-01-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weijun Sun

    IPC: H04W4/00 ,  H04W72/08 ,  H04W72/06 ,  H04W74/08 ,  H04W72/04 ,  H04W88/04 ,  H04W92/18

    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.

    Method, base station and user equipment for transmitting channel quality information
    30.
    发明授权
    Method, base station and user equipment for transmitting channel quality information 有权
    方法，基站和用户设备传输信道质量信息

    公开(公告)号：US09426787B2

    公开(公告)日：2016-08-23

    申请号：US13888683

    申请日：2013-05-07

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yongxing Zhou ,  Kunpeng Liu ,  Weijun Sun ,  Yunzhe Hou

    IPC: H04Q7/00 ,  H04W24/10 ,  H04W72/04 ,  H04L1/00 ,  H04W72/12

    CPC classification number: H04L5/0057 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/003 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/06 ,  H04W72/1231 ,  H04W72/1278 ,  H04W72/1284

    Abstract: Methods and apparatus are provided for transmitting channel quality information. User equipment receives a control signaling for uplink scheduling. The control signaling for uplink scheduling includes at least one modulation and coding scheme (MCS) field, a channel quality information request field, and a resource block allocation field indicating the number of resource blocks (RBs), NRB, allocated to the user equipment for transmitting the channel quality information. When the channel quality information of multiple downlink carriers is requested, the user equipment transmits only the channel quality information on the uplink shared channel according to the allocated RBs to the base station if: the MCS bit field corresponding to one transport block indicates a MCS corresponding to a retransmitted data packet; the request bit field indicates a request for the channel quality information; and the NRB is equal to or less than a threshold which is related to the number of the downlink carriers and a maximum number of RBs which can be allocated for transmitting only the channel quality of one downlink carrier.

    Abstract translation: 提供了传输信道质量信息的方法和装置。 用户设备接收上行调度的控制信令。 用于上行链路调度的控制信令包括至少一个调制和编码方案（MCS）字段，信道质量信息请求字段和指示分配给用户设备的资源块（RB）数量NRB的资源块分配字段 传输信道质量信息。 当请求多个下行链路载波的信道质量信息时，如果：与一个传输块相对应的MCS位字段表示MCS对应，则用户设备根据所分配的RB仅向基站发送上行链路共享信道上的信道质量信息 到重传的数据分组; 请求位字段表示对信道质量信息的请求; 并且NRB等于或小于与下行链路载波的数量有关的阈值和可以被分配用于仅发送一个下行链路载波的信道质量的RB的最大数量。

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