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公开(公告)号：US10813081B2
公开(公告)日：2020-10-20
申请号：US16034366
申请日：2018-07-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jin Liu , Haicun Hang , Xiaoyan Bi , Dageng Chen
IPC: H04W72/04 , H04W72/12 , H04L5/00 , H04B7/0452
Abstract: According to embodiments of the present invention, a quantity of available state values of a reference signal configuration is increased by indicating a dual-codeword transmission mode and two single-codeword transmission modes, where the two single-codeword transmission modes are distinguished by using a new data indicator NDI. Therefore, higher-rank (such as 16-layer or 24-layer) MU-MIMO can be supported, increasing system spectral efficiency significantly, and improving MU-MIMO configuration flexibility and resource scheduling effectiveness.
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公开(公告)号：US20200260312A1
公开(公告)日：2020-08-13
申请号：US16832290
申请日：2020-03-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye Wu , Huangping Jin , Xiaoyan Bi , Wei Han
IPC: H04W24/10 , H04W28/06 , H04B7/0417 , H04B7/0452 , H04B7/06
Abstract: Embodiments of the present invention provide a channel measurement method. The method includes: obtaining, for a to-be-measured frequency band including at least one reporting subband and at least one missing subband, channel state information of each reporting subband and channel state information of each missing subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the channel state information of each missing subband is obtained according to a reference rule with reference to channel state information of a reporting subband that is indicated by the reference rule and that is in the at least one reporting subband; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of each reporting subband in the at least one reporting subband.
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公开(公告)号：US10594369B2
公开(公告)日：2020-03-17
申请号：US16504354
申请日：2019-07-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Han , Huangping Jin , Xiaoyan Bi
IPC: H04B7/0417 , H04B7/06
Abstract: Embodiments of the present invention provide a channel information feedback method, a channel information determining method, a receive end device, and a transmit end device. The channel information feedback method includes: generating at least one piece of description information for each of a plurality of subbands included in a wideband, where each piece of description information is used to describe a description vector of a channel matrix corresponding to the subband, the description information includes at least one of a vector parameter and a weighting parameter; and sending the at least one piece of description information. The embodiments of the present invention further provide a channel information determining method, a receive end device, and a transmit end device. A precoding effect can be improved when precoding is performed based on the description vector fed back in the technical solutions provided in the embodiments of the present invention.
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公开(公告)号：US20190260542A1
公开(公告)日：2019-08-22
申请号：US16401686
申请日：2019-05-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye Wu , Yong Liu , Xiaoyan Bi
IPC: H04L5/00 , H04W72/04 , H04B7/0456
Abstract: A reference signal transmission method is provided, including: generating, by a network side device, a transmission unit, where the transmission unit includes a user equipment-specific demodulation reference signal UE-specific DM-RS, a time-frequency region for unicast control, and a user-specific data time-frequency region; and sending the transmission unit to user equipment, where the UE-specific DM-RS is reused or shared to demodulate the time-frequency region for unicast control and the user-specific data time-frequency region.
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公开(公告)号：US20190159152A1
公开(公告)日：2019-05-23
申请号：US16256204
申请日：2019-01-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jin Liu , Lei Huang , Xiaoyan Bi , Huangping Jin
Abstract: A synchronization processing method, including sending, in a first time unit, by a network device, a first synchronization signal having one or more first beams to a terminal device, and sending, in a second time unit, a second synchronization signal having one or more second beams to the terminal device. The first synchronization signal and the second synchronization signal cause the terminal device to determine, according to the first synchronization signal and the second synchronization signal, an optimal transmit beam of the network device for the terminal device from the one or more first beam and the one or more second beams, and further to determine a time sequence in which the optimal transmit beam is located. A time offset corresponding to each first beam and second beams is different, and is a difference between a time sequence of the beams and a time sequence of the second beams.
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公开(公告)号：US10142003B2
公开(公告)日：2018-11-27
申请号：US15481845
申请日：2017-04-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaoyan Bi , Dageng Chen
IPC: H04B7/02 , H04L1/02 , H04B7/06 , H04L1/06 , H04B7/0456 , H04B7/0417 , H04L25/02
Abstract: Embodiments of the present invention provide a precoding information obtaining apparatus. The apparatus includes: a determining module, configured to determine a transformation quantity according to a steering vector of an antenna form and a departure-angle range; a sending module, configured to send, to a terminal, information about the transformation quantity determined by the determining module, where the information about the transformation quantity is used by the terminal to determine a PMI according to the information about the transformation quantity, a codebook used for obtaining channel information, and a pilot measurement result; and a receiving module, configured to receive the PMI reported by the terminal. A network node sends a transformation quantity containing antenna information to a terminal, and the terminal feeds back a PMI according to the transformation quantity.
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公开(公告)号：US20180159605A1
公开(公告)日：2018-06-07
申请号：US15883305
申请日：2018-01-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Huang , Dageng Chen , Xiaoyan Bi
IPC: H04B7/06 , H04B7/0413 , H04L27/26
CPC classification number: H04B7/06 , H04B7/04 , H04B7/0413 , H04B7/0613 , H04L1/0041 , H04L1/0061 , H04L1/06 , H04L5/0023 , H04L27/2626
Abstract: A data processing apparatus and a data processing method are provided. The method includes inputting q data streams, where each data stream includes Msymb complex-valued modulation symbols of one code word, and q and Msymb are integers greater than or equal to 1. The method also includes determining an l×l matrix used by the Msymb complex-valued modulation symbols included in each data stream, where the l×l matrix is one of an l×l identity matrix and a circulant matrix of the l×l identity matrix, and l is a quantity of transport layers. Additionally, the method includes performing, by using the determined l×l matrix, layer permutation mapping on the Msymb complex-valued modulation symbols included in each data stream.
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公开(公告)号：US20170170887A1
公开(公告)日：2017-06-15
申请号：US15444609
申请日：2017-02-28
Applicant: Huawei Technologies, Co., Ltd.
Inventor： Lei Huang , Dageng Chen , Xiaoyan Bi
IPC: H04B7/06 , H04L27/26 , H04B7/0413
CPC classification number: H04B7/06 , H04B7/04 , H04B7/0413 , H04B7/0613 , H04L1/0041 , H04L1/0061 , H04L1/06 , H04L5/0023 , H04L27/2626
Abstract: A data processing apparatus and a data processing method are provided. The method includes inputting q data streams, where each data stream includes Msymb complex-valued modulation symbols of one code word, and q and Msymb are integers greater than or equal to 1. The method also includes determining an 1×1 matrix used by the Msymb complex-valued modulation symbols included in each data stream, where the 1×1 matrix is one of an 1×1 identity matrix and a circulant matrix of the 1×1 identity matrix, and 1 is a quantity of transport layers. Additionally, the method includes performing, by using the determined 1×1 matrix, layer permutation mapping on the Msymb complex-valued modulation symbols included in each data stream.
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公开(公告)号：US09520922B2
公开(公告)日：2016-12-13
申请号：US14491590
申请日：2014-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dageng Chen , Xiaoyan Bi , Jiayin Zhang
CPC classification number: H04B7/024 , H04B7/0632 , Y02D70/00 , Y02D70/1262 , Y02D70/442 , Y02D70/444
Abstract: A downlink channel quality information acquisition method includes: a transmission node in a coordinated node set acquires the noise receiving power of a user equipment (UE11) and the interference power on the UE11 of a node in a non-coordinated set; the transmission node in the coordinated node set acquires, via the transmission node in the coordinated node set, an inter-user interference power during the multi-user scheduling and the effective signal receiving power of the UE11; the transmission node in the coordinated node set acquires the interference power on the UE11 of a non-transmission node in the coordinated set; calculating the ratio between the effective signal receiving power and the sum of an interference source power and the noise receiving power of the UE11, and using the ratio as the value of the downlink CQI between the transmission node and the UE11.
Abstract translation: 下行链路信道质量信息获取方法包括：协调节点集中的传输节点获取用户设备（UE11）的噪声接收功率和非协调集合中的节点的UE11的干扰功率; 协调节点集中的传输节点通过协调节点集中的传输节点获取多用户调度期间的用户间干扰功率和UE11的有效信号接收功率; 协调节点集中的传输节点获取协调集中的非传输节点的UE11的干扰功率; 计算有效信号接收功率与干扰源功率和UE11的噪声接收功率之和的比率，并将该比率用作发送节点与UE11之间的下行链路CQI的值。
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公开(公告)号：US12238021B2
公开(公告)日：2025-02-25
申请号：US17672495
申请日：2022-02-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hongzhe Shi , Liuliu Ji , Haicun Hang , Xiaoyan Bi
IPC: H04L5/00 , H04W72/04 , H04W72/0453 , H04W72/53
Abstract: Example frequency domain resource allocation methods and apparatus are described. One example method includes determining M frequency domain resources according to a predetermined frequency domain resource allocation rule, and performing communication on one or more of the M frequency domain resources. Any two of the M frequency domain resources do not overlap. Each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information.
