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公开(公告)号：US10567061B2
公开(公告)日：2020-02-18
申请号：US15829206
申请日：2017-12-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Jianghua Liu
IPC: H04B7/06 , H04B7/0417 , H04W72/04 , H04L1/00
Abstract: The present application discloses a method for feeding back channel state information (CSI), comprising: acquiring first and second CSI based on a first and a second CSI measurement resource respectively, obtaining a channel quality indicator (CQI) based on the first CSI and the second CSI, wherein the first CSI comprises a first and a second type of precoding matrix indicator (PMI1 and PMI2) and a first rank indicator (RI1), and the second CSI comprises a first and a second type of PMI (PMI3 and PMI4) and a second RI (RI2); and feeding back third CSI to a base station, wherein the third CSI comprises third PMI information, third RI information, and the CQI, wherein the third PMI information is obtained based on at least three of the PMI1, the PMI2, the PMI3, and the PMI4, and the third RI information is obtained based on the RI1 and the RI2.
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公开(公告)号：US10404430B2
公开(公告)日：2019-09-03
申请号：US15184546
申请日：2016-06-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Jianghua Liu
Abstract: The present invention provides a method for transmitting a pilot signal, a base station, and user equipment The method including: determining, by a base station, a transmission period of a pilot antenna port group; and sending, by the base station, in a transmission period corresponding to each pilot antenna port group, a pilot signal to user equipment by using a resource corresponding to the pilot antenna port group, so that the user equipment measures channel quality according to the pilot signal. By means of the technical solutions provided in the embodiments of the present invention, pilot signal overheads can be reduced.
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公开(公告)号：US10383123B2
公开(公告)日：2019-08-13
申请号：US15840659
申请日：2017-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wu , Jianqin Liu , Jianghua Liu
Abstract: The present disclosure describes a physical downlink control channel (PDCCH) candidate determining method and device, and relates to the field of wireless communications, so as to avoid PDCCH blocking and improve reliability of control information transmission. The method of the present invention includes: determining an PDCCH resource set p in a subframe k, where the PDCCH resource set p includes NECCE,p,k=q×r enhanced control channel elements (ECCEs), an PDCCH candidate of an PDCCH with an aggregation level being L corresponds to L ECCEs having consecutive reference numerals, and an PDCCH candidate is capable of carrying an PDCCH; and determining the number of PDCCH candidates at the aggregation level L of a carrier corresponding to an index Cellindex and an ECCE corresponding to each PDCCH candidate, where the ECCE corresponding to each PDCCH candidate at the aggregation level L is related to the index Cellindex.
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公开(公告)号：US10263874B2
公开(公告)日：2019-04-16
申请号：US15786929
申请日：2017-10-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianghua Liu
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.
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公开(公告)号：US20190097691A1
公开(公告)日：2019-03-28
申请号：US16123340
申请日：2018-12-14
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jianghua Liu , Qiang Wu , Chi Gao
IPC: H04B7/0413 , H04L5/00 , H04B7/06 , H04L25/02 , H04L1/06 , H04W72/04 , H04W84/04 , H04B7/0452 , H04L25/03
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.
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Patent Agency Ranking
公开(公告)号：US10194455B2
公开(公告)日：2019-01-29
申请号：US15263165
申请日：2016-09-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wu , Weijun Sun , Leiming Zhang , Jianghua Liu
Abstract: Embodiments of the present invention provide a method for feeding back a channel quality indicator, and a method and an apparatus for sending resource scheduling information. An apparatus for feeding back a channel quality indicator includes: a determining module, configured to determine a feedback granularity of a CQI according to a system bandwidth, a CQI feedback mode, and antenna port quantity information specified by a network device; and a feedback module, configured to feed back the CQI to the network device according to the feedback granularity of the CQI. The method for feeding back a channel quality indicator, and the method and the apparatus for sending resource scheduling information provided in the embodiments of the present invention are used to reduce system overheads.
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137.发明申请公开(公告)号：US20180343094A1
公开(公告)日：2018-11-29
申请号：US16055317
申请日：2018-08-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiang Wu , Chi Gao , Jianqin Liu , Jianghua Liu
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.
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公开(公告)号：US20180309485A1
公开(公告)日：2018-10-25
申请号：US16015831
申请日：2018-06-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Leiming Zhang , Jianghua Liu
IPC: H04B7/0456 , H04B7/06 , H04B7/04
CPC classification number: H04B7/0456 , H04B7/04 , H04B7/0673 , H05K999/99
Abstract: A method for measuring and feeding back channel information and a corresponding apparatus are provided. In an embodiment the method includes determining, by a first network device, a first codebook from a first codebook set, wherein the first codebook set comprises at least two first codebooks, wherein a sub-vector Wx of each first codebook is formed by a zero vector and a non-zero vector, wherein vectors forming the Wx are associated with different groups of antenna ports, wherein each first codebook comprises at least one first sub-vector [ V a 0 0 V a 1 0 ] and/or at least one second sub-vector [ 0 V b 0 0 V b 1 ] , and wherein Va0 and Va1 are elements in the vector Va, and Vb0 and Vb1 are elements in the vector Vb and sending a codebook index to a second network device, wherein the codebook index is associated with the first codebook selected from the first codebook set.
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139.发明授权公开(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
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.
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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
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.
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