公开(公告)号：US20180175925A1

公开(公告)日：2018-06-21

申请号：US15897082

申请日：2018-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu

IPC: H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/065 ,  H04L25/0204 ,  H04L25/0242

Abstract: Embodiments of the present disclosure provide a channel state information feedback method, which includes: determining, by user equipment, N CSI-RS resources according to a quantity N, configured by a base station, of CSI-RS resources that need to be fed back; performing channel estimation on a port included in the N CSI-RS resources, to obtain channel state information in a horizontal dimension; then selecting M CSI-RS resources from the N CSI-RS resources; and feeding back channel state information of the M CSI-RS resources in the horizontal dimension and indication information of the M CSI-RS resources to the base station, so that the base station determines channel state information in a vertical dimension according to the indication information, so as to finally obtain channel state information in the two dimensions, thereby resolving a problem that channel state information in only a horizontal dimension is fed back during conventional channel estimation.

公开(公告)号：US09838096B2

公开(公告)日：2017-12-05

申请号：US15352381

申请日：2016-11-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/0673

Abstract: A method for measuring and feeding back channel information and a corresponding apparatus are provided. A first network device receives a reference signal, measures the reference signal to obtain a measurement result, and selects a first codebook from a first codebook set according to the measurement result; for different sub-vectors Wx (1) and Wx (2), a location of a non-zero vector in the Wx (1) is the same as a location of a non-zero vector in the Wx (2); and formation according to different structures is: for different sub-vectors Wx (1) and Wx (2), a location of a non-zero vector in the Wx (1) is different from a location of a non-zero vector in the Wx (2); and the first network device sends a codebook index to a second network device, where the codebook index corresponds to the first codebook selected from the first codebook set.

公开(公告)号：US20170325206A1

公开(公告)日：2017-11-09

申请号：US15660980

申请日：2017-07-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin Liu ,  Kunpeng Liu ,  Qiang Wu ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/00 ,  H04L5/0053 ,  H04W72/04

Abstract: The present invention provides a method for assigning the number of control channel candidates and the number of blind detection times, a base station, and a user equipment. The method includes determining a first aggregation level set {L1i} and determining the number of EPDCCH candidates corresponding to each aggregation level in the {L1i}. {L1i} is formed by N aggregation levels supported by an EPDCCH. A second aggregation level set {L2j} is determined along with the number of EPDCCH candidates corresponding to each aggregation level in the {L2j}. {L2j} is formed by M aggregation levels supported by an EPDCCH to be detected, {L2j} is a subset of {L1i}, and the number of EPDCCH candidates corresponding to L2j in {L2j} is greater than or equal to the number of EPDCCH candidates corresponding to L2j in {L1i}.

公开(公告)号：US20170289980A1

公开(公告)日：2017-10-05

申请号：US15630837

申请日：2017-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chaojun Li ,  Qiang Wu

IPC: H04W72/04

Abstract: Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method includes determining, by a terminal device, a resource set and resource elements (REs) of predetermined overheads in the resource set. The REs of the predetermined overheads include an RE of at least one of a paging channel and a synchronization channel, with at least one of following REs: an RE of a channel state information-reference signal (CSI-RS), an RE of a cell-specific reference signal (CRS), an RE of a demodulation reference signal (DMRS), or a muted RE. The terminal device receives from a base station, a control channel on an RE subset comprised in the resource set, wherein the RE subset comprises a part of the REs in the resource set and do not contain the REs of the predetermined overheads.

公开(公告)号：US09680988B2

公开(公告)日：2017-06-13

申请号：US14611548

申请日：2015-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Xia ,  Kunpeng Liu

IPC: H04M3/26 ,  H04L5/00 ,  H04W24/02

CPC classification number: H04M3/26 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0053 ,  H04W24/02

Abstract: The embodiments of the present invention provide a method for configuring a reference signal, a base station and a user equipment. The method includes: receiving, by a first base station, candidate reference signal configuration information of a second base station transmitted by the second base station, and/or candidate reference signal configuration information of the first base station transmitted by an operation and maintenance entity (OAM); and configuring, by the first base station, a reference signal for a user equipment (UE) according to the candidate reference signal configuration information of the second base station, and/or, configuring, by the first base station, a reference signal for a UE according to the candidate reference signal configuration information of the first base station.

公开(公告)号：US20170070272A1

公开(公告)日：2017-03-09

申请号：US15352381

申请日：2016-11-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/0673

Abstract: A method for measuring and feeding back channel information and a corresponding apparatus are provided. A first network device receives a reference signal, measures the reference signal to obtain a measurement result, and selects a first codebook from a first codebook set according to the measurement result; for different sub-vectors Wx (1) and Wx (2), a location of a non-zero vector in the Wx (1) is the same as a location of a non-zero vector in the Wx (2); and formation according to different structures is: for different sub-vectors Wx (1) and Wx (2), a location of a non-zero vector in the Wx (1) is different from a location of a non-zero vector in the Wx (2); and the first network device sends a codebook index to a second network device, where the codebook index corresponds to the first codebook selected from the first codebook set.

Abstract translation: 提供了一种用于测量和反馈信道信息的方法以及相应的装置。 第一网络设备接收参考信号，测量参考信号以获得测量结果，并根据测量结果从第一码本集中选择第一码本; 对于不同的子向量Wx（1）和Wx（2），Wx（1）中的非零向量的位置与Wx（2）中的非零向量的位置相同; 并且根据不同结构的形成是：对于不同的子向量Wx（1）和Wx（2），Wx（1）中的非零向量的位置不同于非零向量的位置 Wx（2）; 并且第一网络设备向第二网络设备发送码本索引，其中码本索引对应于从第一码本集合选择的第一码本。

公开(公告)号：US20160352402A1

公开(公告)日：2016-12-01

申请号：US15235952

申请日：2016-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： JaeHyun Park ,  Bruno Clerckx ,  Kunpeng Liu

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04B7/065 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/10 ,  H04L5/005 ,  H04W88/02 ,  H04W88/08

Abstract: The embodiment of the disclosure discloses a base station, a mobile station and a method thereof. The base station includes a processor and a transceiver. The processor determines a first subgroup to which a first mobile station belongs, wherein the first mobile station is one of a plurality of mobile stations, the plurality of mobile stations are grouped into G groups based on spatial correlation, the mobile stations in each of the G groups are further grouped into S subgroups based on polarization, the mobile stations in a same subgroup have a same polarization and the mobile stations in different subgroups have different polarizations. The transceiver communicates with the first mobile station according to the polarization of the first subgroup. The embodiments of the disclosure utilize polarization jointly with the spatial correlation in dual structured procoding so that feedback overhead can be reduced.

Abstract translation: 本公开的实施例公开了一种基站，移动台及其方法。 基站包括处理器和收发器。 处理器确定第一移动站所属的第一子组，其中第一移动台是多个移动台中的一个，基于空间相关将多个移动台分组为G组，每个移动台 G组基于极化进一步分组为S个子组，同一子组中的移动台具有相同的极化，并且不同子组中的移动台具有不同的极化。 收发器根据第一子组的极化与第一移动台进行通信。 本公开的实施例利用双重结构化进程中的空间相关联的极化，从而可以减少反馈开销。

公开(公告)号：US20160309396A1

公开(公告)日：2016-10-20

申请号：US15192864

申请日：2016-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Chai ,  Kunpeng Liu

IPC: H04W48/10 ,  H04W16/28 ,  H04B7/04

CPC classification number: H04W48/10 ,  H04B7/0452 ,  H04L5/0053 ,  H04W16/28

Abstract: Embodiments of the present disclosure disclose a message broadcast method, a base station, and user equipment. The message broadcast method includes: determining, by a base station, a piece of system subgroup information of system information of a first cell, where each piece of system subgroup information includes system information content that is applied to a user equipment group that corresponds to the system subgroup information. The method also includes broadcasting, to the user equipment group, the system subgroup information that corresponds to the user equipment group. In such a manner, system information that is generated due to a requirement of a new technology can be effectively reduced, and user equipment can be prevented from receiving information unrelated to the user equipment and triggering unnecessary behavior.

Abstract translation: 本公开的实施例公开了消息广播方法，基站和用户设备。 消息广播方法包括：由基站确定第一小区的系统信息的系统子组信息，其中每个系统子组信息包括应用于对应于该用户设备组的用户设备组的系统信息内容 系统子组信息。 该方法还包括向用户设备组广播与用户设备组对应的系统子组信息。 以这种方式，可以有效地减少由于新技术的要求而产生的系统信息，并且可以防止用户设备接收与用户设备无关的信息并触发不必要的行为。

公开(公告)号：US09445404B2

公开(公告)日：2016-09-13

申请号：US14490520

申请日：2014-09-18

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L5/0053

Abstract: The present invention provides a method, base station, and user equipment for transmitting a control channel. Grouping is performed, according to an aggregation level of the to-be-transmitted control channel, on sub-blocks in physical resource blocks configured by the base station for the to-be-transmitted control channel, then interleaving is performed, and then candidate control channels are mapped to the interleaved sub-blocks, so that any candidate control channel of the to-be-transmitted control channel is sent on consecutive time-frequency resources as possible, and meanwhile different candidate control channels are on different PRB pairs as possible. In this way, the base station may have better flexibility during actual sending of the ePDCCH, thereby not only achieving a precoding gain and facilitating better transmission of control information, but also achieving a larger scheduling gain.

Abstract translation: 本发明提供一种用于发送控制信道的方法，基站和用户设备。 根据要发送的控制信道的聚合级别，对由待发射的控制信道的基站配置的物理资源块中的子块进行分组，然后进行交织，然后进行候选 控制信道被映射到交织的子块，使得待发送的控制信道的任何候选控制信道尽可能在连续的时间 - 频率资源上发送，同时不同的候选控制信道尽可能地在不同的PRB对上 。 以这种方式，基站在ePDCCH的实际发送期间可能具有更好的灵活性，从而不仅实现预编码增益并且有助于更好地传输控制信息，而且实现更大的调度增益。

公开(公告)号：US20160105875A1

公开(公告)日：2016-04-14

申请号：US14972864

申请日：2015-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chi Gao ,  Jianghua Liu

IPC: H04W72/04 ,  H04W48/16 ,  H04W74/00

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04W48/16 ,  H04W74/006

Abstract: Embodiments of the present invention provide methods for detecting and sending downlink control information and devices. The method for detecting downlink control information includes: acquiring a pilot port determining parameter that corresponds to downlink control information needing to be detected; determining, according to the pilot port determining parameter, a first-type pilot port that corresponds to the downlink control information; and detecting the downlink control information according to the first-type pilot port. In the embodiments of the present invention, user equipment can correctly detect downlink control information.

Abstract translation: 本发明的实施例提供了用于检测和发送下行链路控制信息和设备的方法。 用于检测下行链路控制信息的方法包括：获取对应于需要检测的下行链路控制信息的导频端口确定参数; 根据所述导频端口确定参数确定与所述下行链路控制信息相对应的第一类型导频端口; 以及根据第一类型的导频端口检测下行链路控制信息。 在本发明的实施例中，用户设备可以正确地检测下行链路控制信息。