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公开(公告)号：US20220302971A1
公开(公告)日：2022-09-22
申请号：US17425921
申请日：2019-01-29
发明人： Henrik JIDHAGE
摘要： There are provided mechanisms for generating a beam set. A method is performed by a radio transceiver device. The method comprises generating the beam set as combination of at least two beam pairs. Each beam pair is formed by two respective beams with orthogonal polarizations. The two beams have their pointing directions separated by a first angular separation delta1>0. Neighbouring beam pairs have their pointing directions separated by a second angular separation delta2>0. The first angular separation delta1 is a function of the second angular separation delta2.
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公开(公告)号：US20230017555A1
公开(公告)日：2023-01-19
申请号：US17784031
申请日：2019-12-12
发明人： Henrik JIDHAGE , Stefan JOHANSSON , Tomas LIEBACK
摘要： There is provided mechanisms for OTA calibration of an AAS. The AAS comprises N antenna branches, each of which comprises a respective subarray. The subarray of each antenna branch gives rise to a subarray antenna pattern extending over an angular interval. A method is performed by a test equipment. The method comprises obtaining measurement values for each of the antenna branches. At least one measurement value is obtained per each antenna branch. The method comprises determining one calibration factor value per antenna branch using the measurement values and taking the subarray antenna patterns into account. The method comprises applying the determined calibration factor values to the N antenna branches, thereby calibrating the AAS.
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公开(公告)号：US20200336224A1
公开(公告)日：2020-10-22
申请号：US16303431
申请日：2016-05-24
摘要： A method (20) of determining sign of a calibration compensation for use in an antenna system (10) is provided, the antenna system (10) comprising individually calibrated subarrays (2a, 2b). The method (20) comprises selecting (21) a set of antenna elements comprising two neighboring antenna elements of the first subarray (2a) and two neighboring antenna elements of the second subarray (2b); measuring (22): in a selected antenna element of the first subarray (2a) a first received signal Y31 as transmitted from the other selected antenna element of the first subarray (2a) and a second received signal Y34 as transmitted from the neighboring antenna element of the second subarray (2b), and in a selected antenna element of the second subarray (2b) a third received signal Y21 as transmitted from the other selected antenna element of the second subarray (2b) and a fourth received signal Y24 as transmitted from the neighboring antenna element of the first subarray (2a); calculating (23) for the first calibrated subarray (2a) a downlink compensation value Δta and an uplink compensation value Ara based on measurement values obtained from the measuring (22), each compensation value Ata, Ara having a positive and a negative solution; determining (24) a first compensation value estimate, kt, for downlink compensation and a second compensation value estimate, kr, for uplink compensation; and determining (25) the sign of the downlink compensation value Ata and the uplink compensation value Ara based on distance between the first compensation value estimate kt and the downlink compensation value, Ata, and the distance between the second compensation value estimate, kr, and the uplink compensation value Ara.
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公开(公告)号：US20160380690A1
公开(公告)日：2016-12-29
申请号：US15101519
申请日：2013-12-05
发明人： Henrik JIDHAGE
CPC分类号： H04B7/10 , H04B7/0617
摘要： The present invention relates to a wireless communication node (1) comprising at least one antenna arrangement (2, 3, 4). Each antenna arrangement (2, 3, 4) comprises at least three antenna devices (5, 6, 7, 8), comprising corresponding pairs of antenna ports (A, B, C, D) with a corresponding first and second antenna port (P1A, P1 B, P1 C, P1D; P2A, P2B, P2C, P2D). Each antenna port (P1A, P1 B, P1C, P1D; P2A, P2B, P2C, P2D) is arranged downlink and uplink and is connected to a corresponding radio transceiver unit (11, 12, 13, 14, 15, 16, 17, 18). Each antenna device (5, 6, 7, 8) comprises at least one corresponding dual polarized antenna element (19, 20, 21, 22) arranged for transmitting and receiving signals at a first polarization (P1) via the corresponding first antenna port (P1A, P1B, P1 C, P1 D) and for transmitting and receiving signals at a second polarization (P2) via the corresponding second antenna port (P2A, P2B, P2C, P2D). A beamforming arrangement (23) is arranged to apply beamforming on downlink signals. For an adaptive mode of operation for downlink, the beamforming arrangement (23) is arranged to apply beamforming such that one or two antenna beams (48a, 48b) is/are directed in a first direction (49), and such that one or two antenna beams (32a, 32b) is/are directed in a second direction (33).
摘要翻译： 本发明涉及一种包括至少一个天线装置（2,3,4）的无线通信节点（1）。 每个天线装置（2,3,4）包括至少三个天线装置（5,6,7,8），包括相应的一对天线端口（A，B，C，D）和对应的第一和第二天线端口 P1A，P1B，P1C，P1D; P2A，P2B，P2C，P2D）。 每个天线端口（P1A，P1B，P1C，P1D; P2A，P2B，P2C，P2D）被布置在下行链路和上行链路上，并且连接到相应的无线电收发器单元（11,12,13,14,15,16,17， 18）。 每个天线装置（5,6,7,8）包括至少一个对应的双极化天线元件（19,20,21,22），被布置用于经由相应的第一天线端口（P1）发送和接收第一极化（P1）的信号 P1A，P1B，P1C，P1D），并且经由相应的第二天线端口（P2A，P2B，P2C，P2D）以第二极化（P2）发送和接收信号。 布置波束形成装置（23）以在下行链路信号上应用波束形成。 对于下行链路的自适应操作模式，波束形成装置（23）被布置成施加波束形成，使得一个或两个天线波束（48a，48b）被指向第一方向（49），并且使得一个或两个 天线梁（32a，32b）在第二方向（33）上被引导。
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公开(公告)号：US20240322874A1
公开(公告)日：2024-09-26
申请号：US18420197
申请日：2024-01-23
发明人： Henrik JIDHAGE
CPC分类号： H04B7/0617 , H04B7/10
摘要： There is provided mechanisms for generating a beam set. A method is performed by a radio transceiver device. The method comprises generating the beam set as combination of at least two beam pairs. Each beam pair is formed by two respective beams with orthogonal polarizations. The two beams have their pointing directions separated by a first angular separation delta1>0. Neighbouring beam pairs have their pointing directions separated by a second angular separation delta2>0. The first angular separation delta1 is a function of the second angular separation delta2.
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公开(公告)号：US20230142772A1
公开(公告)日：2023-05-11
申请号：US17912128
申请日：2020-03-18
发明人： Stefan JOHANSSON , Henrik JIDHAGE
IPC分类号： H01Q3/36
CPC分类号： H01Q3/36 , H04B7/0617
摘要： The present disclosure relates to an array antenna arrangement comprising at least one set of at least two sub-array antennas. Each set of sub-array antennas is mounted such that a corresponding array antenna column is formed. For each polarization in each set of sub-array antennas, each sub-array antenna comprises a corresponding sub-array antenna port that is associated with a certain sub-array antenna beam pointing direction setting, and each sub-array antenna port is connected to a corresponding radio chain in a set of radio chains, where each set of radio chains is adapted to provide a corresponding digital antenna beam pointing direction setting. In at least one set of sub-array antennas, at least one sub-array beam pointing direction setting, differs from a corresponding digital antenna beam pointing direction setting.
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7.发明申请公开(公告)号：US20190149250A1
公开(公告)日：2019-05-16
申请号：US16307157
申请日：2016-06-08
发明人： Henrik JIDHAGE , Christer ENGDAHL
CPC分类号： H04B17/12 , H04B7/0617 , H04B17/19
摘要： A method of calibrating an antenna system comprising a number of antenna elements is provided. The method comprises transmitting and measuring at least for first and second reference antenna elements, thereby obtaining first and second sets of corresponding number of measurement values; calculating, for a first type of beamforming and for each calibration antenna element j a correction value—ΔRijk,Type 1, thereby obtaining a first part of a correction matrix; calculating, for a second type of beamforming and for each branch j a correction value ΔRi,jType 2, thereby obtaining a second part of the correction matrix; performing an optimization procedure using as input the correction matrix thereby obtaining, for each row of the correction matrix, a respective optimized constant, and calculating a compensation value Δri for each antenna element based on the respective optimized constant.
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