公开(公告)号：US20180041417A1

公开(公告)日：2018-02-08

申请号：US15786929

申请日：2017-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianghua LIU

IPC: H04L12/26 ,  H04L1/18

CPC classification number: H04L43/12 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1896

Abstract: Embodiments of the present invention include a method and a user equipment for determining a control channel resource. The method includes: detecting a downlink control channel that carries scheduling information of a downlink data channel and is sent by a base station, where the downlink control channel is formed by at least one control channel logical element, and the at least one control channel logical element is mapped to at least one antenna port; acquiring at least one of antenna port information of a first antenna port corresponding to a first control channel logical element of the successfully detected downlink control channel and an offset, and sequence number information of the first control channel logical element; and determining, according to at least one of the antenna port information and the offset, as well as the sequence number information.

公开(公告)号：US20170170883A1

公开(公告)日：2017-06-15

申请号：US15398551

申请日：2017-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU

IPC: H04B7/0417 ,  H04B7/04 ,  H04B7/0452 ,  H04B1/04

CPC classification number: H04B7/0417 ,  H04B1/0475 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03006

Abstract: The present invention provides a precoding matrix indicator feedback method, a receive end, and a transmit end. The method includes: selecting, by a receive end based on a reference signal, a precoding matrix W from a codebook, where a coefficient α is used to perform phase adjustment on φn in W, φn represents a phase difference between weighted values of a first antenna group and a second antenna group of a transmit end for a transmission signal from a same transmission layer, ϕ n ∈ { e j   2   π   n Q } , and the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (PMI) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna configurations, and improve precision of the receive end to feed back a PMI.

公开(公告)号：US20160323025A1

公开(公告)日：2016-11-03

申请号：US15206062

申请日：2016-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Jianghua LIU ,  Yongxing ZHOU

IPC: H04B7/04 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0639 ,  H04B7/0658 ,  H04L5/0026 ,  H04W72/0406

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

Abstract translation: 提供了预编码矩阵集确定方法和装置，以及参数指示信息发送方法和装置。 预编码矩阵集确定方法包括：由第一网络设备确定用于确定预编码矩阵集合的参数，其中该参数包括相位参数，幅度参数，预编码矩阵中的向量量中的至少一个 设置在双码本反馈中设置的第一码本中的向量数量和双码本反馈中设置的第二码本中的矢量数量，并且该参数不固定; 以及使用该参数来确定预编码矩阵集合，其中预编码矩阵集合包括至少一个预编码矩阵。 通过使用该解决方案，提高了反馈预编码矩阵指示器的灵活性。

公开(公告)号：US20140355559A1

公开(公告)日：2014-12-04

申请号：US14455050

申请日：2014-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chi GAO ,  Jianghua LIU ,  Qiang WU

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04

CPC classification number: H04L5/0005 ,  H04B7/0697 ,  H04L5/0053 ,  H04L5/0058 ,  H04L5/006 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1273

Abstract: Embodiments of the present invention provide a control channel resource transmission method, a base station and a user equipment which can ensure balance between performance of E-CCEs on a resource set, and further ensure scheduling and receiving performance of the E-CCEs. A control channel resource transmission method includes: mapping, by a base station, more than one enhanced control channel element E-CCE onto a resource set, where each E-CCE is mapped onto a corresponding first resource subset and a corresponding second resource subset respectively, so that each E-CCE occupies a resource of the same size or a difference between sizes of resources occupied by the E-CCEs is less than a preset threshold, where the E-CCEs are carried on the resource set for transmission; and transmitting the resource set that carries the E-CCEs to a user equipment; and demodulating, by the user equipment, the resource set and performing receiving.

Abstract translation: 本发明的实施例提供一种控制信道资源传输方法，基站和用户设备，其可以确保资源集上的E-CCE的性能之间的平衡，并进一步确保E-CCE的调度和接收性能。 控制信道资源传输方法包括：由基站将多于一个增强控制信道单元E-CCE映射到资源集合，其中每个E-CCE分别映射到对应的第一资源子集和对应的第二资源子集 使得每个E-CCE占用相同大小的资源，或者由E-CCE占用的资源的大小之间的差异小于预设的阈值，其中E-CCE被携带在用于传输的资源集上; 并将携带E-CCE的资源集合发送给用户设备; 并且由用户设备解调资源集合并执行接收。

公开(公告)号：US20140140310A1

公开(公告)日：2014-05-22

申请号：US14166506

申请日：2014-01-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Jianghua LIU

IPC: H04L5/00 ,  H04W72/12

CPC classification number: H04L5/0053 ,  H04L1/0046 ,  H04W48/12 ,  H04W72/1268 ,  H04W72/1273

Abstract: Embodiments of the present invention disclose methods and apparatuses for receiving and sending a control channel, and are applicable to the field of communications technologies. In the embodiments of the present invention, a base station carries scheduling information of a user equipment of an R11 system in both the PDCCH region and the E-PDCCH region of a downlink subframe. In this way, the user equipment needs to detect the control channel within the PDCCH region and the E-PDCCH region, so that resources of the two regions are available to the user equipment of the R11 system. Moreover, the user equipment detects only the control channel of the first type in the PDCCH region, and detects control channels of the other type in the E-PDCCH region. The method in the embodiments of the present invention does not increase the number of control channel detections.

Abstract translation: 本发明的实施例公开了用于接收和发送控制信道的方法和装置，并且可应用于通信技术领域。 在本发明的实施例中，基站在下行链路子帧的PDCCH区域和E-PDCCH区域中携带R11系统的用户设备的调度信息。 以这种方式，用户设备需要检测PDCCH区域和E-PDCCH区域内的控制信道，使得这两个区域的资源可用于R11系统的用户设备。 此外，用户设备仅检测PDCCH区域中的第一类型的控制信道，并检测E-PDCCH区域中的其他类型的控制信道。 本发明实施例中的方法不增加控制信道检测的数量。