公开(公告)号：US10084580B2

公开(公告)日：2018-09-25

申请号：US15491290

申请日：2017-04-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Chi Gao ,  Jianqin Liu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0064 ,  H04W72/04 ,  H04W72/0406

Abstract: The present invention provides methods for transmitting and receiving a control channel, a base station, and a user equipment. The method for transmitting a control channel includes: determining m PRB pairs used for transmitting a control channel to be transmitted; when a distributed transmission mode is used for transmission, determining an aggregation level L of the control channel to be transmitted; determining, according to the aggregation level L, a first control channel candidate at the aggregation level L; and placing, on physical resources to which the first control channel candidate is mapped, control information of the control channel to be transmitted, and transmitting the control information. The present invention improves multiplexing efficiency of control channels of different modes.

公开(公告)号：US20180270802A1

公开(公告)日：2018-09-20

申请号：US15988220

申请日：2018-05-24

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianqin Liu ,  Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04W72/04

Abstract: The present application provides a method and an apparatus for allocating control channel candidates, which relate to the communications field, and can allocate control channel candidates at different aggregation levels to K ePDCCH sets and reduce complexity of blind detection performed by a UE. The method includes: determining K sets for transmitting a control channel, where each set in the K sets includes at least one physical resource block pair; and allocating control channel candidates at each aggregation level to at least one set in the K sets according to at least one of aggregation levels supported by the control channel to be transmitted, the number of control channel candidates corresponding to each aggregation level, the K sets for transmitting the control channel, and types of the sets.

公开(公告)号：US09609642B2

公开(公告)日：2017-03-28

申请号：US14487980

申请日：2014-09-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang Xia ,  Mingyu Zhou ,  Chi Gao ,  Zhenfei Tang

IPC: H04W4/00 ,  H04W72/04 ,  H04W28/18 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04W8/06 ,  H04W28/18

Abstract: Embodiments of the present invention provide a control channel resource transmission method including: obtaining, by a user equipment, a configuration parameter in a candidate control channel set according to a preset protocol and/or higher-layer signaling sent by a base station, where the higher-layer signaling is used to notify the configuration parameter; determining an antenna port according to the obtained configuration parameter; receiving, by using the antenna port, a control channel or a control channel element sent by the base station; and determining, by the base station, the antenna port according to the same configuration parameter as that of the user equipment, and sending, by using the antenna port, the control channel or the control channel element to the user equipment. The embodiments of the present invention are applicable to control channel resource transmission.

公开(公告)号：US09306652B2

公开(公告)日：2016-04-05

申请号：US14336747

申请日：2014-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0413 ,  H04B7/0452 ,  H04B7/0684 ,  H04B7/0697 ,  H04L1/0606 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0226 ,  H04L2025/03426 ,  H04W72/042 ,  H04W84/042

Abstract: Embodiments of the present invention disclose a method and an apparatus for transmitting data, and the method includes: first setting at least two second resource groups in each first resource group of at least one first resource group, and setting at least two reference signals in each of the second resource groups; then encoding data to be transmitted and generating two data streams from the encoded data; then, mapping the two data streams onto an available resource element of two different antenna ports, in which the reference signals corresponding to the two different antenna ports are set on two different second resource groups; and finally, transmitting, on the available resource element of the two different antenna ports, data on the two antenna ports. The present invention is applicable to the field of communications systems.

Abstract translation: 本发明的实施例公开了一种用于发送数据的方法和装置，该方法包括：首先在至少一个第一资源组的每个第一资源组中设置至少两个第二资源组，并且在每个第一资源组中设置至少两个参考信号 的第二资源组; 然后对要发送的数据进行编码，并从编码数据生成两个数据流; 然后将两个数据流映射到两个不同天线端口的可用资源元素上，其中对应于两个不同天线端口的参考信号被设置在两个不同的第二资源组上; 最后，在两个不同天线端口的可用资源元件上发送两个天线端口上的数据。 本发明可应用于通信系统领域。

公开(公告)号：US20140314018A1

公开(公告)日：2014-10-23

申请号：US14319366

申请日：2014-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chi Gao ,  Mingyu Zhou ,  Liang Xia ,  Qiang Wu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0051 ,  H04W72/042

Abstract: Various embodiments of the present invention provide a pilot resource allocation method, where the method includes: determining, according to an aggregation level and multiplexing information of an enhanced control channel element E-CCE in a resource block pair, the number of resource elements REs that are allocated to and occupied by a demodulation pilot signal DMRS in the resource block pair. Various embodiments of the present invention further provide a corresponding user equipment. By implementing the method and device, the efficiency of time-frequency resource utilization can be improved.

Abstract translation: 本发明的各种实施例提供一种导频资源分配方法，其中该方法包括：根据资源块对中的增强控制信道单元E-CCE的聚合级别和复用信息，确定资源块对的数量RE 被分配给资源块对中的解调导频信号DMRS占用。 本发明的各种实施例还提供相应的用户设备。 通过实施该方法和装置，可以提高时频资源利用效率。