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公开(公告)号：US20230284196A1
公开(公告)日：2023-09-07
申请号：US18017412
申请日：2021-07-22
Inventor： Hui LI , Runhua CHEN , Qiubin GAO , Yajuan LUO
IPC: H04W72/044 , H04W72/23 , H04W52/42
CPC classification number: H04W72/046 , H04W72/23 , H04W52/42
Abstract: The embodiments of the present application relate to a beam determination method and device. When data is sent by means of the determined beam, loss of transmission performance is avoided. In the present application, a terminal sends reference information to a network side device according to configuration of the network side device, the reference information including power backoff information and/or reference signal received power, and the reference signal received power being obtained on the basis of the power backoff information; and the terminal receives a target beam indication sent by the network side device, and sends or receives a signal on the basis a target beam in the target beam indication, the target beam indication being determined by the network side device on the basis of the reference information.
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22.发明公开公开(公告)号：US20230144956A1
公开(公告)日：2023-05-11
申请号：US17909749
申请日：2020-12-16
Inventor： Runhua CHEN , Hui LI , Yajuan LUO , Qiubin GAO
IPC: H04W72/12 , H04W72/231 , H04B7/0408 , H04L5/00 , H04W72/21 , H04W74/08
CPC classification number: H04W72/12 , H04W72/231 , H04B7/0408 , H04L5/0053 , H04W72/21 , H04W74/0833
Abstract: The embodiments of the present application provide a method for transmitting an uplink channel, an apparatus, a base station, a terminal and a storage medium. The method includes the following steps: determining an uplink beam or a downlink beam; determining a first beam used for uplink channel transmission according to the uplink beam or the downlink beam, and a predetermined rule or first indication information configured for the terminal by the base station; and transmitting an uplink channel by using the first beam. Therefore, according to the embodiments of the present application, the flexibility in selection of beams used by the uplink channel transmission is improved and the efficiency of the uplink channel transmission is increased.
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公开(公告)号：US20230009991A1
公开(公告)日：2023-01-12
申请号：US17785399
申请日：2020-12-07
Inventor： Zhengxuan LIU , Qiubin GAO , Hui LI
IPC: H04B7/0456 , H04B7/06 , H04L5/00
Abstract: The present application relates to communication technology. Disclosed are a channel reciprocity-based precoding matrix configuration method and apparatus. The method comprises: in downlink transmission, a network side separately sends, on each antenna port associated with each transmission layer, a CSI-RS subjected to beamforming to a terminal by using beams calculated according to angle information and delay information determined on the basis of uplink channel state information, and determines a precoding matrix for downlink transmission of the terminal according to beams sent on K0 antenna ports selected by the terminal on the basis of the CSI-RS, and a beam combination coefficient set. In this way, both angle information reciprocity and delay information reciprocity between uplink and downlink channels can be used to directly calculate formed beams for transmitting the CSI-RS, without performing SVD calculation for effective channel information of each PMI subband, thereby reducing the calculation complexity of the terminal, reducing the feedback overhead of the terminal, and also improving system performance.
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公开(公告)号：US20220321294A1
公开(公告)日：2022-10-06
申请号：US17640212
申请日：2020-07-24
Inventor： Bin REN , Hui LI , Deshan MIAO , Xiaotato REN , Ren DA
IPC: H04L5/00
Abstract: The present application discloses a signal transmission method and device that can achieve transmission of sidelink positioning reference signals so as to implement sidelink-based positioning. Embodiments of the present application provide a signal sending method used at a sending end, the method comprising: determining sidelink positioning reference signal (SPRS) resource configuration information of a first terminal on a sidelink; and sending, according to the SPRS resource configuration information, a SPRS to a second terminal via the sidelink, such that the second terminal performs positioning measurement on the basis of the SPRS.
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公开(公告)号：US20220182121A1
公开(公告)日：2022-06-09
申请号：US17598834
申请日：2020-02-26
Inventor： Hui LI , Qiubin GAO , Zhengxuan LIU , Runhua CHEN
IPC: H04B7/06 , H04B7/0456
Abstract: The embodiments of the present application relate to the field of wireless communication technology, and provide a channel state information (CSI) feedback method and device to reduce CSI feedback overhead. In the method, a terminal determines an orthogonal beam group and pre-coding matrix information according to codebook parameter information, wherein specified coefficients of the same beam in the orthogonal beam group in a first polarization direction and a second polarization direction are the same, and the specified coefficients comprise an amplitude coefficient and/or a phase coefficient; the pre-coding matrix information comprises the specified coefficients and an adjustment factor, and the adjustment factor is used together with the specified coefficients to determine a linear combination coefficient other than a specified combination coefficient in a linear combination coefficient set; and the determined pre-coding matrix information is sent to a network-side device. In the foregoing manner, the terminal reports the specified coefficients (equivalent to partial linear combination coefficients) in the linear combination coefficient set. Since the number of reported coefficients is reduced, system overhead caused by feedback CSI information may be reduced.
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Patent Agency Ranking
公开(公告)号：US20220166531A1
公开(公告)日：2022-05-26
申请号：US17440966
申请日：2020-02-20
Abstract: The present application discloses a clock offset determination method, a clock offset processing method, a device, and a system, used to enable a base station to monitor reference signals, PRS and C-PRS, of a neighboring base station, so as to achieve time synchronization and frequency synchronization between base stations, and to resolve the issue in which a time offset caused by a frequency offset between the base stations results in the degradation of system positioning performance, thereby improving the positioning performance of the system. The clock offset determination method provided in the present application comprises: measuring a carrier-phase positioning reference signal (C-PRS) used to position a carrier phase and transmitted by a transmitter end of a positioning reference signal, so as to obtain a phase measurement value; and determining, on the basis of the phase measurement value, a clock offset between a receiver end and the transmitter end of the positioning reference signal.
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公开(公告)号：US20220150866A1
公开(公告)日：2022-05-12
申请号：US17431176
申请日：2020-01-15
Inventor： Bin REN , Ren DA , Hui LI , Deshan MIAO , Xueyuan GAO
Abstract: A positioning method, a device, a system, a terminal, an LMF entity, and a medium, used to solve the problem of low positioning accuracy of UE-based OTDOA in the prior art. The method comprises: a terminal sending to a location management function (LMF) entity an auxiliary positioning data request message comprising first identification information of a beam reference signal detected by the terminal itself (S101); receiving from the LMF entity auxiliary positioning data of beam direction information of a beam reference signal comprising second identification information, wherein the second identification information is identification information of a beam reference signal sent by a neighboring base station and determined, according to the first identification information, by the LMF entity as being detectable by the terminal (S102); and determining an RSTD of each beam reference signal having the first identification information or the second identification information, and determining position information of the terminal according to the determined RSTD and a beam direction of each beam reference signal (S103).
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28.发明申请公开(公告)号：US20220123806A1
公开(公告)日：2022-04-21
申请号：US17422433
申请日：2019-12-24
Inventor： Hui LI , Qiubin GAO , Runhua CHEN , Zhengxuan LIU
IPC: H04B7/06
Abstract: Disclosed in the present application are methods for sending and receiving channel state information (CSI), a terminal device and a network device, which are used to provide a CSI sending method or receiving method on the basis of a Rel-16 codebook structure. The method for sending CSI comprises: determining a compressed basis vector in a precoding matrix, the compressed basis vector belonging to a set of candidate basis vectors, wherein the compressed basis vector weighted by coefficients of the precoding matrix is used to construct frequency domain characteristics of the precoding matrix; and sending the CSI to a network device, wherein the CSI comprises basis vector indication information, and the basis vector indication information is used to indicate the compressed basis vector.
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公开(公告)号：US20220082652A1
公开(公告)日：2022-03-17
申请号：US17422200
申请日：2019-12-16
Inventor： Ren DA , Bin REN , Deshan MIAO , Hui LI , Xueyuan GAO
Abstract: A positioning method and device used for solving the problems of the existing method for determining an integer ambiguity being relatively difficult and relatively time-consuming. During positioning, the method comprises: a receiving device determining a virtual phase measured value according to at least two received C-PRS signals (600); determining a TOA measured value according to a received PRS signal (601); determining a virtual integer ambiguity according to the TOA measured value and the virtual phase measured value (602); and finally, determining the position of the receiving device according to the virtual integer ambiguity (603). An integer ambiguity search space is reduced, and the integer ambiguity is determined faster, thus improving the efficiency of determining the position of the receiving device.
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公开(公告)号：US20240373390A1
公开(公告)日：2024-11-07
申请号：US18552663
申请日：2022-04-02
Inventor： Hui LI , Bin REN , Ren DA , Xiaotao REN , Zheng ZHAO
Abstract: The present application provides a positioning method and apparatus, and a storage medium, the method includes: a terminal receiving PRSs from multiple access network devices, each access network device corresponding to multiple PRSs; for each access network device, the terminal determining at least two target PRS resources that are spatially adjacent among PRS resources for transmitting the multiple PRSs of the access network device; and the terminal sending measurement results of the target PRS resources to a location server, the measurement result of the target PRS resource being used for instructing the location server to determine location information of the terminal.
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