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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
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.
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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
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.
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93.发明授权公开(公告)号：US10264572B2
公开(公告)日：2019-04-16
申请号：US15584937
申请日：2017-05-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Yongxing Zhou , Qiang Wu
Abstract: A method and a device for scrambling sequence configuration, a user equipment and a base station are provided. The method includes: obtaining a search space and/or a transmission mode corresponding to an enhanced control channel; performing a scrambling initialization operation according to the search space and/or the transmission mode, and determining an initialization value of a scrambling sequence; determining the scrambling sequence according to the initialization value of the scrambling sequence; and scrambling a transmission signal transmitted by the enhanced control channel according to the scrambling sequence and then transmitting, so that a user equipment which receives the transmission signal performs a descrambling operation according to the scrambling sequence in the transmission signal. Randomization of interferences between different cells or terminals can be guaranteed as far as possible.
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94.发明申请公开(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.
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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
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}.
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Patent Agency Ranking
公开(公告)号：US09960829B2
公开(公告)日：2018-05-01
申请号：US15073147
申请日：2016-03-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wu , Leiming Zhang , Jianghua Liu
CPC classification number: H04B7/0632 , H04B7/0639 , H04L1/0026 , H04L1/0028 , H04W24/02 , H04W72/042 , H04W88/02
Abstract: The present invention discloses a channel state information feedback method and apparatus. User equipment determines a PMI and a CQI, and a feedback expression manner of the PMI and the CQI, where the feedback expression manner includes a first or a second feedback expression manner, and sends the PMI and the CQI to a network device in the determined feedback expression manner of the PMI and the CQI, where the first feedback expression manner includes: using T CQI values to express CQI of M codewords, and using one PMI value to indicate one PMI, where T is less than M, and there is at least one CQI value that can express CQI of at least two codewords; and the second feedback expression manner includes: using M CQI values to express CQI of M codewords. The present invention may be applied to a scenario in which an antenna quantity increases.
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公开(公告)号：US20180103477A1
公开(公告)日：2018-04-12
申请号：US15840659
申请日：2017-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wu , Jianqin Liu , Jianghua Liu
CPC classification number: H04W72/0453 , H04L5/001 , H04L5/0048 , H04L5/0053 , H04L43/50 , H04W24/02 , H04W72/02 , H04W72/12 , H04W88/08
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：US09906279B2
公开(公告)日：2018-02-27
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 , H04B7/0456 , H04B7/06 , H04B7/04 , H04L25/03 , H04B1/04 , H04B7/0452
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.
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99.发明申请公开(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
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}.
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100.发明申请公开(公告)号：US20170324529A1
公开(公告)日：2017-11-09
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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