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公开(公告)号：US10972171B2
公开(公告)日：2021-04-06
申请号：US16148759
申请日：2018-10-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao Ren , Ting Wang , Na Deng , Yuanjie Li
Abstract: A data transmission method and apparatus are provided. A terminal device obtains an antenna port allocation result indicating a first antenna port set and a second antenna port set. An antenna port in the first antenna port set is quasi co-located (QCL) with another antenna port in the first antenna port set, an antenna port in the second antenna port is QCL with another antenna port in the second antenna port set, and an antenna port in the first antenna port set is not QCL with an antenna port in the second antenna port set. The terminal device receives first data transmitted on an antenna port in the first antenna port set, and receives second data transmitted on an antenna port in the second antenna port set.
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公开(公告)号：US10958320B2
公开(公告)日：2021-03-23
申请号：US15930864
申请日：2020-05-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yi Huang , Haibao Ren , Yuanjie Li
IPC: H04B7/0456 , H04B7/06 , H04W72/04
Abstract: One example method includes receiving first indication information through a higher layer signaling, the first indication information indicating an available codebook subset, receiving downlink control information, determining a precoding matrix corresponding to a transmission precoding matrix indicator (TPMI) and a transmission rank obtained from the downlink control information, where the precoding matrix belongs to the available codebook subset indicated by the first indication information, precoding a signal based on the determined precoding matrix, and sending the precoded signal to a network device.
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公开(公告)号：US20200021411A1
公开(公告)日：2020-01-16
申请号：US16579413
申请日：2019-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao Ren , Yi Huang , Longbao Wang , Yuanjie Li
IPC: H04L5/00 , H04L1/00 , H04B7/0413
Abstract: Embodiments of this application provide a data transmission method, a network device, and a terminal device. The method includes: determining, by a network device, demodulation reference signal DMRS port groups, where a quantity of the DMRS port groups is greater than or equal to 2; and further, communicating, by the network device, data with a terminal device, where the data is corresponding to a transport block, the transport block is divided into at least one code block group CBG, and each of the at least one CBG is corresponding to one DMRS port group and is mapped to a transport layer corresponding to the one DMRS port group.
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公开(公告)号：US10419099B2
公开(公告)日：2019-09-17
申请号：US16144497
申请日：2018-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haibao Ren , Yi Qin , Xi Zhang
Abstract: This application provides a phase tracking reference signal (PTRS) sending method and apparatus. The method includes: implicitly determining, by a terminal device based on obtained uplink grant information and a preset rule, a to-be-sent PTRS and an antenna port for carrying the to-be-sent PTRS, where the antenna port is selected from an antenna port set, and the to-be-sent PTRS is one or more of all available PTRSs; and putting the to-be-sent PTRS on the antenna port, and sending the to-be-sent PTRS on the antenna port. This implicit indication method can effectively reduce air interface signaling overheads and improve air interface efficiency.
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公开(公告)号：US20190199496A1
公开(公告)日：2019-06-27
申请号：US16289121
申请日：2019-02-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Yi Qin , Zhongfeng Li , Yi Ren , Yu Sun , Shengyue Dou , Haibao Ren
CPC classification number: H04L5/0048 , H04B7/0617 , H04W72/042
Abstract: Embodiments of the present invention relate to the communications field, and disclose an information transmission method and device to implement beamforming on an SRS. A specific solution is as follows: A base station configures at least one first resource for a UE, where the first resource is used by the UE to transmit a target channel and/or signal; and the base station transmits first indication information to the UE, where the first indication information is used to indicate a correspondence between the first resource and a beam, or the first indication information is used to indicate a correspondence between the first resource and a second resource. The embodiments of the present invention are used in a beamforming process.
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Patent Agency Ranking
公开(公告)号：US20180270775A1
公开(公告)日：2018-09-20
申请号：US15984221
申请日：2018-05-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Zhang , Yuanjie Li , Ting Wang , Qinghai Zeng , Haibao Ren
CPC classification number: H04W56/0015 , H04L27/26 , H04L27/2655 , H04W4/02
Abstract: Embodiments of the present disclosure provide a downlink synchronization method, an apparatus, and a system, and relate to the communications field, so as to reduce downlink synchronization complexity and improve downlink synchronization efficiency. According to the downlink synchronization method, a base station sends downlink synchronization reference information to UE by using dedicated signaling or a system message, where the downlink synchronization reference information is used to instruct the UE to perform downlink synchronization in a second cell by referring to a downlink synchronization channel of a first cell; and the base station sends, in the second cell according to location information of the UE, a beam including a downlink synchronization channel to the UE, where the first cell and the second cell include an overlapped coverage area. The embodiments of the present disclosure are applied to synchronization channel sending.
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公开(公告)号：US11909559B2
公开(公告)日：2024-02-20
申请号：US16990182
申请日：2020-08-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ting Wang , Haibao Ren , Shengyue Dou , Yuanjie Li
IPC: H04L25/02 , H04L5/00 , H04W8/24 , H04W56/00 , H04B7/024 , H04B7/06 , H04B17/309 , H04B7/08 , H04W72/044 , H04W28/18 , H04L69/28 , H04W72/23 , H04W72/53
CPC classification number: H04L25/0204 , H04B7/024 , H04B7/066 , H04B7/0619 , H04B7/0626 , H04B7/0634 , H04B7/086 , H04B17/309 , H04L5/0023 , H04L5/0035 , H04L5/0048 , H04L5/0053 , H04L25/0242 , H04L69/28 , H04W8/24 , H04W28/18 , H04W56/001 , H04W72/044 , H04W72/23 , H04W72/53
Abstract: Example quasi co-location information determining methods and apparatus are described. One example method includes determining a quantity X of pieces of quasi co-location QCL information, where X is a positive integer. When it is determined that the quantity X of pieces of QCL information is two, and that DCI corresponding to a current data channel does not indicate QCL information of an antenna port of the data channel, or that an interval between the current data channel and the DCI corresponding to the data channel is less than a threshold, two pieces of default QCL information of the antenna port of the data channel are determined.
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公开(公告)号：US11251846B2
公开(公告)日：2022-02-15
申请号：US17189741
申请日：2021-03-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yi Huang , Haibao Ren , Yuanjie Li
IPC: H04B7/0456 , H04B7/06 , H04W72/04
Abstract: One example method includes receiving first indication information through a higher layer signaling, the first indication information indicating an available codebook subset, receiving downlink control information, determining a precoding matrix corresponding to a transmission precoding matrix indicator (TPMI) and a transmission rank obtained from the downlink control information, where the precoding matrix belongs to the available codebook subset indicated by the first indication information, precoding a signal based on the determined precoding matrix, and sending the precoded signal to a network device.
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公开(公告)号：US11206064B2
公开(公告)日：2021-12-21
申请号：US16673432
申请日：2019-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haibao Ren , Yi Huang , Yuanjie Li
IPC: H04B7/0456 , H04B7/06 , H04W72/04
Abstract: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.
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公开(公告)号：US11128510B2
公开(公告)日：2021-09-21
申请号：US16165109
申请日：2018-10-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibao Ren , Yuanjie Li
Abstract: This application relates to a data transmission method. The method includes: receiving, in a subframe, first data and first demodulation reference signal(s) that are sent by a first network side device by using n antenna port(s), and second data and second demodulation reference signal(s) that are sent by a second network side device by using m antenna port(s), where time-frequency resources occupied by the first demodulation reference signal(s) are different from time-frequency resources occupied by the second demodulation reference signal(s), and a time-frequency resource occupied by the first data and that occupied by the second data at least partly overlap; and performing demodulation processing on the data based on the first demodulation reference signal(s) and the second demodulation reference signal(s). The data transmission method may be applied to coordinated multipoint transmission/reception in which a plurality of network side devices that are not quasi-co-located simultaneously send data to user equipment.
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