公开(公告)号：US20150327226A1

公开(公告)日：2015-11-12

申请号：US14802938

申请日：2015-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Cheng ,  David Jean-Marie Mazzarese ,  Lixia Xue ,  Yongxing Zhou ,  Brian Classon

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0094 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/1289 ,  H04W74/08

Abstract: Embodiments of the present invention provide a PDSCH transmission method and apparatus. The method includes: detecting a downlink control channel for scheduling a PDSCH; determining a resource allocation scheme of the PDSCH according to a DCI format of the downlink control channel for scheduling the PDSCH and an attribute of a carrier for carrying the PDSCH; and decoding the PDSCH according to the resource allocation scheme of the PDSCH and a transmission scheme of the PDSCH. The embodiments of the present invention provide an effective solution to PDSCH transmission.

Abstract translation: 本发明的实施例提供了一种PDSCH传输方法和装置。 该方法包括：检测用于调度PDSCH的下行链路控制信道; 根据用于调度PDSCH的下行链路控制信道的DCI格式和携带PDSCH的载波的属性，确定PDSCH的资源分配方案; 并根据PDSCH的资源分配方案和PDSCH的传输方案对PDSCH进行解码。 本发明的实施例提供了对PDSCH传输的有效解决方案。

公开(公告)号：US20150327224A1

公开(公告)日：2015-11-12

申请号：US14802555

申请日：2015-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Guan ,  Lixia Xue ,  Yongxing Zhou ,  Qiang Li ,  Jingyuan Sun

IPC: H04W72/04 ,  H04L12/24 ,  H04L12/751 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073 ,  H04L41/12 ,  H04L45/02 ,  H04W48/12 ,  H04W72/04 ,  H04W88/02

Abstract: 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.

Abstract translation: 本发明的实施例提供了一种用于公共控制信道的检测方法，发送方法和装置。 检测方法包括：确定当前小区的虚拟下行链路资源内的候选资源集合。 候选资源集合可以包括携带当前小区的公共控制信道的至少一个候选资源。 对候选资源集合中的至少一个候选资源进行检测，以获取当前小区的公共控制信道。 在本发明的实施例中，扩展了用于发送公共控制信道的资源的选择范围，使得可以协调公共控制信道的小区间干扰，并且可以提高公共控制信道的检测性能。

公开(公告)号：US20150304008A1

公开(公告)日：2015-10-22

申请号：US14753490

申请日：2015-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  G06F17/16 ,  H04B7/0413 ,  H04B7/0634 ,  H04B7/0639 ,  H04N19/124

Abstract: Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and a base 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.

Abstract translation: 本发明的实施例提供了一种用于反馈信道状态信息，用户设备和基站的方法，以提高信道状态信息的反馈精度。 该方法包括：接收由基站发送的参考信号; 根据参考信号从码本中选择预编码矩阵W，其中预编码矩阵W的列向量可以表示为α[v ej＆phgr; v] T，v = [1 ej＆thetas;]; 并向基站发送预编码矩阵指示符PMI，其中PMI对应于所选择的预编码矩阵W.本发明可以进一步提高量化精度并实现开销和量化精度之间的平衡。 基站根据反馈预编码矩阵指示符对发送的信号进行预编码，这可以提高预编码精度，从而提高数据传输速率和系统吞吐量。

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。

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。

公开(公告)号：US09054754B2

公开(公告)日：2015-06-09

申请号：US14340971

申请日：2014-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L27/00 ,  H04B7/04 ,  H04L25/03 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0641 ,  H04L25/03923 ,  H04L25/03936

Abstract: In the field of communication technologies, a method and an apparatus for acquiring a Precoding Matrix Indicator (PMI) and a Precoding Matrix (PM) are provided. The method includes: acquiring a reference PMI and a differential PMI according to a first non-differential codebook and a first diagonal differential codebook, where codewords included in the first diagonal differential codebook form a diagonal matrix. The apparatus includes a PMI acquiring module. Acquiring a reference PMI and a differential PMI according to a non-differential codebook and a diagonal differential codebook can reduce the feedback overhead or improve the feedback precision; and the fact that codewords included in the diagonal differential codebook form a diagonal matrix can maintain amplitude characteristics (for example, a constant modulus characteristic, and a finite character set constraint characteristic) of elements of the non-differential codebook or facilitate power distribution among antennas.

Abstract translation: 在通信技术领域中，提供了一种用于获取预编码矩阵指示符（PMI）和预编码矩阵（PM）的方法和装置。 该方法包括：根据第一非差分码本和第一对角差分码本获取参考PMI和差分PMI，其中包括在第一对角差分码本中的码字形成对角矩阵。 该装置包括PMI获取模块。 根据非差分码本和对角差分码本获取参考PMI和差分PMI可以减少反馈开销或提高反馈精度; 并且包括在对角差分码本中的码字形成对角线矩阵的事实可以保持非差分码本的元素的幅度特性（例如，恒定模量特性和有限字符集约束特性）或促进天线之间的功率分配 。

公开(公告)号：US20150110215A1

公开(公告)日：2015-04-23

申请号：US14588755

申请日：2015-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/04

CPC classification number: H04B7/0465 ,  H04B7/0478 ,  H04L1/06 ,  H04W72/042 ,  H04W72/046

Abstract: The present disclosure discloses a method, a user equipment and a base station for determining a PMI. The method includes: receiving a reference signal set sent by a base station; based on the reference signal set, selecting a precoding matrix from a codebook, the codebook at least including a non-constant modulus precoding matrix, the non-constant modulus precoding matrix at least including a non-constant modulus column vector, amplitude values of at least two elements of the non-constant modulus column vector forming a symmetrical sequence; and sending a PMI to the base station, the PMI corresponding to the selected precoding matrix. According to the method, the user equipment and the base station for determining PMI, because the non-constant modulus precoding matrix included in the adopted codebook can adjust the shape of a beam, antennas may focus power on a hotspot region, and thus a load balance may be effectively realized.

Abstract translation: 本公开公开了一种用于确定PMI的方法，用户设备和基站。 该方法包括：接收由基站发送的参考信号集; 基于所述参考信号集合，从码本中选择预编码矩阵，所述码本至少包括非常数模数预编码矩阵，所述非常数模数预编码矩阵至少包括非恒模列列向量， 形成对称序列的非恒模列向量的至少两个元素; 以及向所述基站发送PMI，所述PMI与所选择的预编码矩阵相对应。 根据该方法，用于确定PMI的用户设备和基站，由于采用的码本中包含的非恒定模数预编码矩阵可以调整波束的形状，所以天线可将焦点集中在热点区域上，从而负载 平衡可以有效地实现。

公开(公告)号：US08989299B2

公开(公告)日：2015-03-24

申请号：US13681029

申请日：2012-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongxing Zhou ,  Jianguo Wang

IPC: H04B15/00 ,  H04L25/00 ,  H04B7/06 ,  H04L1/00 ,  H04L25/03 ,  H04L5/00 ,  H04W28/04

CPC classification number: H04L25/00 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/03898 ,  H04L25/03949 ,  H04W28/04

Abstract: The present invention discloses a method and a device of sending and receiving precoding information. A terminal terminal obtains a wideband precoding matrix indicator PMI. The terminal encodes an MSB of the wideband PMI to obtain encoded information. The MSB of the wideband PMI is encoded separately or jointly with other information and the MSB is a part of the wideband PMI. The terminal sends encoded information to a data sending end.

Abstract translation: 本发明公开了一种发送和接收预编码信息的方法和装置。 终端终端获得宽带预编码矩阵指示符PMI。 终端编码宽带PMI的MSB以获得编码信息。 宽带PMI的MSB单独或与其他信息共同编码，MSB是宽带PMI的一部分。 终端将编码信息发送到数据发送端。

公开(公告)号：US20140241198A1

公开(公告)日：2014-08-28

申请号：US14274021

申请日：2014-05-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingyuan SUN ,  Yongxing Zhou ,  Liang Xia ,  Xiaotao Ren

IPC: H04L5/00 ,  H04W24/08

CPC classification number: H04L5/0048 ,  H04L5/006 ,  H04L5/0094 ,  H04W24/08 ,  H04W72/085

Abstract: The present application discloses a method for measuring and feeding back radio resource management information, a base station, and a user equipment, relates to the field of communications. The method includes: receiving, by a user equipment UE, a measurement indication from a base station, where the measurement indication includes: information used for indicating, to the UE, at least one channel-state information-reference signal CSI-RS resource used for measuring a received signal strength indicator RSSI; acquiring, by the UE, at least one RSSI according to the measurement indication; acquiring, by the UE, at least one reference signal received quality RSRQ according to the at least one RSSI, where the at least one RSRQ is one-to-one corresponding to the at least one RSSI; and feeding back, by the UE, the at least one RSRQ to the base station.

Abstract translation: 本申请公开了一种用于测量和反馈无线资源管理信息的方法，基站和用户设备涉及通信领域。 该方法包括：由用户设备UE接收来自基站的测量指示，其中测量指示包括：用于向UE指示至少一个使用的信道状态信息参考信号CSI-RS资源的信息 用于测量接收信号强度指示符RSSI; 由所述UE根据所述测量指示获取至少一个RSSI; 由所述UE获取根据所述至少一个RSSI的至少一个参考信号接收质量RSRQ，其中所述至少一个RSRQ与所述至少一个RSSI对应的一对一; 以及由所述UE向所述基站反馈所述至少一个RSRQ。

公开(公告)号：US20140098770A1

公开(公告)日：2014-04-10

申请号：US14103215

申请日：2013-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingyu Zhou ,  Liang Xia ,  Xiaotao Ren ,  Yongxing Zhou

IPC: H04W72/08 ,  H04L12/761

CPC classification number: H04W72/08 ,  H04B7/024 ,  H04B7/0413 ,  H04L1/1887 ,  H04L45/16 ,  H04L2001/0092 ,  H04W28/04 ,  H04W72/12

Abstract: The present invention provides a method, an apparatus, and a system for CoMP retransmission. The method includes: sending downlink control signaling to a user equipment UE, so that the UE receives, according to the downlink control signaling, an initially transmitted signal sent by a serving transmission point and a cooperative transmission point by joint processing mode; receiving first NAK information corresponding to the initially transmitted signal and returned by the UE, and sending a retransmitted signal corresponding to the initially transmitted signal to the UE according to the first NAK information, where the initially transmitted signal also corresponds to second NAK information sent by the UE to the cooperative transmission point, where the second NAK information is used to instruct the cooperative transmission point to, when the serving transmission point sends the retransmitted signal to the UE, reduce interference to the UE with scheduling.

Abstract translation: 本发明提供了一种用于CoMP重传的方法，装置和系统。 该方法包括：向用户设备UE发送下行控制信令，使得UE根据下行控制信令，通过联合处理方式接收由服务传输点和协作传输点发送的初始发送信号; 接收对应于初始发送信号并由UE返回的第一NAK信息，并根据第一NAK信息向UE发送对应于最初发送信号的重发信号，其中初始发送的信号也对应于由第一NAK信息发送的第二NAK信息 UE到合作传输点，其中第二NAK信息用于指示协作传输点，当服务传输点向UE发送重传的信号时，通过调度来减少对UE的干扰。