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公开(公告)号：US20190222384A1
公开(公告)日：2019-07-18
申请号：US16367231
申请日：2019-03-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lu WU , Hongzhe SHI , Huangping JIN
CPC classification number: H04L5/0048 , H04B7/063 , H04B7/0641 , H04B7/0695 , H04B7/088 , H04W16/28 , H04W72/046 , H04W72/085
Abstract: Embodiments provide a beam tracking method and system, a device, and a storage medium, and belongs to the field of communications technologies. The method includes: receiving a demodulation reference signal DMRS sent by a transmit end device; and feeding back an updated beam to the transmit end device when determining, based on the DMRS, that a beam deviation occurs. The method helps resolve a problem in the prior art that accuracy for determining an optimal beam is relatively low, and improve the accuracy for determining the optimal beam. This application is used for beam tracking.
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12.发明申请公开(公告)号：US20220329378A1
公开(公告)日：2022-10-13
申请号：US17721138
申请日：2022-04-14
Applicant: Huawei Technologies Co., Ltd.
Abstract: A reference signal sending or receiving method includes: determining, by the network device, a plurality of resource elements REs used to carry a first CSI-RS, where the plurality of REs are distributed in a plurality of resource units, and in each resource unit, a plurality of REs used to carry the first CSI-RS are located on a plurality of subcarriers in a same symbol, values of the first CSI-RS carried on at least two REs are different, and values of the first CSI-RS are loaded to the plurality of REs in the resource unit by using a first multiplex code; and sending, by the network device, the first CSI-RS to the terminal device by using the plurality of REs.
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13.发明申请公开(公告)号：US20220303096A1
公开(公告)日：2022-09-22
申请号：US17833478
申请日：2022-06-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu WU , Yong LIU , Xiaoyan BI
IPC: H04L5/00
Abstract: Embodiments of the present invention provide a method and an apparatus for sending a reference signal, and a method and an apparatus for obtaining a reference signal. The method for sending a reference signal includes: determining, based on a resource that is allocated to a reference signal in a basic pattern corresponding to the reference signal and a resource that is allocated to at least one basic pattern in a physical layer transmission unit, a resource occupied by the reference signal in the physical layer transmission unit; and sending the reference signal through the determined resource. It can be learned that, according to the technical solutions provided in the embodiments of the present invention, arrangement of the reference signal in the physical layer transmission unit can be flexibly set.
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公开(公告)号：US20200067751A1
公开(公告)日：2020-02-27
申请号：US16674903
申请日：2019-11-05
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present disclosure disclose a reference signal pattern transmission method and an apparatus therefor. The method includes: determining, a quantity N of symbols occupied by a CSI-RS resource, and N={1, 2, 4}; obtaining, a pattern of the CSI-RS resource; and sending, configuration information to a terminal device, N=1, the pattern of the CSI-RS resource occupies one RE in time domain, and occupies at least four consecutive REs in frequency domain; or N=2, the pattern of the CSI-RS resource occupies two consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain; or N=4, the pattern of the CSI-RS resource occupies four consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain. According to the embodiments of the present disclosure, a design of a pattern of a channel state information-reference signal resource in a 5G system can be implemented.
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公开(公告)号：US20190334676A1
公开(公告)日：2019-10-31
申请号：US16505251
申请日：2019-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yong LIU , Lu WU , Xiaoyan BI
Abstract: This application relates to the communications field and discloses a reference signal configuration method and apparatus, to improve accuracy of a channel estimation result in a complex and changeable scenario. The method may include: determining configuration information of a first reference signal, where the first reference signal is a reference signal corresponding to a first port that is used in one transmission process, a second port can also be used in the transmission process, and configuration information of a reference signal corresponding to the second port is different from the configuration information of the first reference signal; and configuring the first reference signal based on the configuration information of the first reference signal.
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Patent Agency Ranking
公开(公告)号：US20190297519A1
公开(公告)日：2019-09-26
申请号：US16440733
申请日：2019-06-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei HAN , Lu WU , Huangping JIN
Abstract: Embodiments of the present disclosure include channel state information processing methods and apparatuses. One example method includes configuring, by a network device, at least one piece of CSI reporting configuration information and resource configuration information corresponding to the CSI reporting configuration information, where one piece of the CSI reporting configuration information corresponds to at least two pieces of resource configuration information, wherein one resource configuration information is used for interference measurement and includes a CSI-RS resource set, wherein one resource configuration information is used for channel measurement and includes a NZP CSI-RS resource, and wherein one CSI-RS resource set corresponds to at least one CSI report. The at least one piece of CSI reporting configuration information and the resource configuration information is sent to a terminal device.
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公开(公告)号：US20190165843A1
公开(公告)日：2019-05-30
申请号：US16263984
申请日：2019-01-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Peng SHANG , Lu WU , Xiaoyan BI
Abstract: The present invention discloses an inter-base station beam configuration and management method, a base station, user equipment, and a system. The method includes: receiving, by user equipment, a beam signal sent by a base station; determining, by the user equipment, a receive beam based on the sent beam signal; receiving, by the base station, a beam signal sent by a terminal device; determining, by the base station, a receive beam based on the sent beam signal; performing dynamic selection and fast beam switching between base stations in combination with a coordinated multi-point technology; and performing fast beam alignment between the base station end with the user equipment end. This application can effectively implement fast beam switching and alignment between base stations and support dynamic base station selection, thereby improving link reliability.
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公开(公告)号：US20190149301A1
公开(公告)日：2019-05-16
申请号：US16242787
申请日：2019-01-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yong LIU , Lu WU , Xiaoyan BI
Abstract: Embodiments of present invention disclose a reference signal sending method. The method includes: determining a time-frequency resource occupied by a reference signal of at least one antenna port in a transmission unit, the transmission unit includes a first part and a second part, any symbol in the first part is different from any symbol in the second part, the time-frequency resource is on a single symbol or a plurality of consecutive symbols within the first part, reference signals of each antenna port occupy a same symbol, and the single symbol or each of the plurality of consecutive symbols carries a reference signal of at least one antenna port; and sending the reference signal to user equipment on the time-frequency resource. In the embodiments of present invention, a reference signal mapping rule and an antenna port mapping solution that are applicable to an NR MIMO system are formulated.
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公开(公告)号：US20190109689A1
公开(公告)日：2019-04-11
申请号：US16180935
申请日：2018-11-05
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L5/0048 , H04B17/318 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L5/14 , H04L5/1469 , H04W64/006 , H04W72/0446
Abstract: Embodiments of the present application disclose a sounding reference signal configuration method and an apparatus. The method includes: determining, by a base station, a movement speed of user equipment UE; determining, by the base station based on the movement speed of the UE, a UE-specific subframe configuration set in a plurality of UE-specific SRS subframe configuration sets corresponding to a used cell-specific SRS subframe configuration set, and determining a UE-specific SRS subframe configuration parameter in the determined UE-specific subframe configuration set, where the UE-specific SRS subframe configuration parameter is used to indicate a subframe used to send an SRS; and sending, by the base station, the UE-specific SRS subframe configuration parameter and identification information of the UE-specific subframe configuration set to the UE.
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公开(公告)号：US20190081680A1
公开(公告)日：2019-03-14
申请号：US16185383
申请日：2018-11-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu WU , Xiaoyan BI , Peng SHANG
IPC: H04B7/06 , H04L5/00 , H04B7/0456
Abstract: The present disclosure discloses a channel state information feedback method, a base station, a terminal device, and a system. The method includes: receiving, by a terminal device, a reference signal sent by a base station; determining, by the terminal device, channel state information based on the reference signal; and sending, by the terminal device, the channel state information to the base station, so that the base station determines a precoding matrix F. The precoding matrix F=C1C2W, where C1 is a first-level precoding matrix, C2 is a second-level precoding matrix, and W is a third-level precoding matrix. Channel state information corresponding to C1 includes beam information, channel state information corresponding to C2 includes long-term wideband channel information, and channel state information corresponding to W includes instantaneous channel information. This patent application can reduce total pilot and CSI feedback overheads, thereby improving a system throughput.
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