公开(公告)号：US10708922B2

公开(公告)日：2020-07-07

申请号：US15270707

申请日：2016-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fang Nan ,  Zheng Yu ,  Xingqing Cheng ,  Jianghua Liu

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/08

Abstract: Embodiments of the present disclosure provide a method for enhanced transmission of control information, user equipment, a base station, and a communications system. The method includes: determining a first parameter for enhanced transmission of control information. Between a base station and UE, a kth subframe after a last subframe in enhanced transmission of control information may be preset as a start subframe in enhanced transmission of a PDSCH, a jth subframe after the last subframe in enhanced transmission of the control information may be preset as a start subframe in enhanced transmission of a PUSCH, and a start subframe in enhanced transmission of the control information is preset, where the subframes may also be radio frames. Therefore, the user equipment can accurately determine the last subframe and/or radio frame occupied by the control information, thereby ensuring performance of the PDSCH or PUSCH.

公开(公告)号：US10524292B2

公开(公告)日：2019-12-31

申请号：US15367545

申请日：2016-12-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Zhiheng Guo ,  Jianqin Liu ,  Jianghua Liu ,  Leiming Zhang

IPC: H04W74/08 ,  H04J13/00 ,  H04J13/14

Abstract: Embodiments provide a method for generating a random access channel ZC sequence, and an apparatus. A method for generating a random access channel ZC sequence includes: generating, by a base station, notification signaling, where the notification signaling instructs user equipment UE to generate a random access ZC sequence by using a second restricted set in a random access set; and sending, by the base station, the notification signaling to the UE, so that the UE generates the random access ZC sequence by using the second restricted set, where the random access set includes an unrestricted set, a first restricted set, and the second restricted set; and the second restricted set is a random access set that the UE needs to use when a Doppler frequency shift of the UE is greater than or equal to a first predetermined value.

公开(公告)号：US10277372B2

公开(公告)日：2019-04-30

申请号：US14182558

申请日：2014-02-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Wu ,  Yiqun Qian ,  Yang Li ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

Abstract: The present invention discloses a method, a device and a system for transmitting an enhanced downlink control channel, which belong to the communications field. The method for sending an enhanced downlink control channel includes: presetting a multiplexing unit, where the multiplexing unit includes at least one resource block pair, and the at least one resource block pair includes E-PDCCH resources and DM RS resources, and the E-PDCCH resources include multiple control channel elements; sending at least one E-PDCCH corresponding to at least one UE in at least one control channel element of the multiplexing unit, and sending the DM RS corresponding to the at least one UE. The present invention reduces the granularity of an enhanced downlink control channel, saves resources and enhances the downlink control channel, thereby providing more control channels for the UE to use.

公开(公告)号：US20190089518A1

公开(公告)日：2019-03-21

申请号：US16198772

申请日：2018-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junwei Wang ,  Xiaoan Fan ,  Jianghua Liu

IPC: H04L5/14 ,  H04L5/22 ,  H04L12/931 ,  H04W72/04 ,  H04W4/06 ,  H04L5/00 ,  H04W72/00 ,  H04J11/00 ,  H04W72/02

Abstract: A method and device for transmitting a service are disclosed. A terminal device receives position information of specific radio frames in a time unit, and position information of a specific subframe in each of the specific radio frames in the time unit from a base station. Every 2m radio frames in the time unit include one specific radio frame, the position information of the specific radio frames in the time unit comprises a value of a period of the specific radio frames in the time unit, and a length of the period is 2m radio frames, where m is a nonnegative integer. The terminal device receives the service carried in the specific subframe in one or more of the specific radio frames from the base station in accordance with the position information of the specific radio frames and the position information of the specific subframe.

公开(公告)号：US10218473B2

公开(公告)日：2019-02-26

申请号：US14702360

申请日：2015-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Liang Xia ,  Jianghua Liu ,  Yongxing Zhou

IPC: H04W72/04 ,  H04W24/10 ,  H04L5/00

Abstract: Embodiments of the present invention provide a control channel detection method, a user equipment, and a base station, where the method includes: acquiring parameter configuration information corresponding to different control channel resource sets, and detecting a control channel in the corresponding different control channel resource sets according to the parameter configuration information, which therefore implements selection of a dynamic node.

公开(公告)号：US10158471B2

公开(公告)日：2018-12-18

申请号：US14448187

申请日：2014-07-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Jianghua Liu

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L25/02

Abstract: The embodiments of the present invention provide a demodulation reference signal processing method, a base station and a user equipment. A processing method includes: generating, by a base station, a DMRS corresponding to an E-PDCCH by using information that is available before a UE receives the E-PDCCH sent by the base station; and mapping, by the base station, the DMRS onto a time-and-frequency resource corresponding to a downlink control channel region and used for transmitting a reference signal, and sending the DMRS to the UE. In the technical solutions of the embodiments of the present invention, the base station and the UE no longer use an SCID for generating the DMRS, which solves the problem that the UE cannot obtain the SCID before receiving the E-PDCCH and cannot generate the DMRS, and further, cannot demodulate the E-PDCCH, and enables demodulation of the E-PDCCH.

公开(公告)号：US10148403B2

公开(公告)日：2018-12-04

申请号：US15245974

申请日：2016-08-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/12 ,  H04W48/12 ,  H04L1/00

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.

公开(公告)号：US10129863B2

公开(公告)日：2018-11-13

申请号：US15494330

申请日：2017-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chi Gao ,  Jianghua Liu ,  Jianqin Liu

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/02

Abstract: This application provides an enhanced physical downlink control channel transmission method and apparatus. The method includes: in a physical resource block set, separately arranging first resource groups in each physical resource block pair PRB pair, where the first resource groups are enhanced resource element groups eREGs or REGs, and the physical resource block set includes at least one of the physical resource block pairs; numbering second resource groups according to a correspondence between the first resource groups and the second resource groups in the physical resource block set, where the second resource groups are control channel element eCCE groups or control channel candidates; determining numbers of the second resource groups for transmitting an E-PDCCH; and mapping, according to the determined numbers, the E-PDCCH to the corresponding first resource groups for transmission. The technical solution of this application resolves an E-PDCCH transmission problem.

公开(公告)号：US20180323944A1

公开(公告)日：2018-11-08

申请号：US16034883

申请日：2018-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04W24/06 ,  H04B7/06 ,  H04B17/318

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US10075947B2

公开(公告)日：2018-09-11

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: H04W76/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/00 ,  H04L5/0053 ,  H04W72/04 ,  Y02D70/20

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}.