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公开(公告)号：WO2020078571A1
公开(公告)日：2020-04-23
申请号：PCT/EP2018/078775
申请日：2018-10-19
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： SJÖDIN, Martin , HANSRYD, Jonas , BAO, Lei
IPC: H04B1/10
Abstract: The present disclosure relates to a point to point radio link arrangement (100, 600) comprising at least two link nodes (110, 120; 610, 620). A first link node (110, 610) is arranged to obtain first link data (X1) over a first carrier frequency, and a second link node 5 (120, 620) is arranged to obtain second link data (X2) over a second carrier frequency separate from the first carrier frequency. The link arrangement (100, 600) further comprises a classification unit (130, 630) arranged to obtain the link data (X1, X2) from the link nodes (110, 120; 610, 620) and to determine if the link data (X1, X2) are affected by either a frequency dependent disturbance event or by a frequency independent 10 disturbance event. This is accomplished by comparing the first link data (X1) to the second link data (X2) over a time window (T). The classification unit (130, 630) is also arranged to output disturbance event decision data (Y) in dependence of whether the link data (X1, X2) have been determined to be affected by either a frequency dependent disturbance event or a frequency independent disturbance event.
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公开(公告)号：WO2017167352A1
公开(公告)日：2017-10-05
申请号：PCT/EP2016/056757
申请日：2016-03-29
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： RYDSTRÖM, Mats , LIGANDER, Per , OLSSON, Bengt-Erik , BAO, Lei , EMANUELSSON, Thomas
Abstract: An antenna arrangement for LOS-MIMO communication, comprising first and second directive antenna units, a mounting bracket, and a connecting element attached to at least one of the directive antenna units and arranged to separate the directive antenna units by a distance. The connecting element is rotatably arranged in relation to the mounting bracket, wherein a rotation of the connecting element about the rotation axis changes an effective distance d between the first and the second directive antenna units.
Abstract translation: 用于LOS-MIMO通信的天线装置包括第一和第二定向天线单元，安装支架以及连接到至少一个定向天线单元并被安排成将定向天线分开的连接元件 单位的距离。 连接元件相对于安装支架可旋转地布置，其中连接元件围绕旋转轴线的旋转改变第一和第二定向天线单元之间的有效距离d。
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公开(公告)号：WO2016206750A1
公开(公告)日：2016-12-29
申请号：PCT/EP2015/064472
申请日：2015-06-25
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： OLSSON, Bengt-Erik , BAO, Lei
CPC classification number: H04B15/00 , H04B7/0413 , H04B7/0613
Abstract: There is provided mechanisms for adjusting an antenna arrangement for mitigating interference in a line of sight multiple input multiple output system. The antenna arrangement comprises at least two antennas. A method comprises adjusting a distance between two antennas of the antenna arrangement by an adjustment distance to compensate for interference caused by at least one reflection occurring along a line of sight link from the antenna arrangement to antennas intended to communicate with the antenna arrangement.
Abstract translation: 提供了用于调整天线装置以减轻视线多输入多输出系统中的干扰的机构。 天线装置包括至少两个天线。 一种方法包括：将天线装置的两个天线之间的距离调整一个调节距离，以补偿由从天线装置到旨在与天线装置通信的天线的视线链路发生的至少一个反射引起的干扰。
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14.发明申请
公开(公告)号：WO2023085987A1
公开(公告)日：2023-05-19
申请号：PCT/SE2021/051130
申请日：2021-11-11
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： CZEGLEDI, Cristian , BAO, Lei , NGUYEN, Sinh , NILSSON, Magnus
IPC: H04B7/0413 , H04B1/7107 , H04B7/08 , H04B7/10
Abstract: A line-of-sight (LOS) multiple-input multiple-output (MIMO) microwave radio link receiver (300) configured for successive interference cancelation (SIC) operation,wherein the receiver (300) comprises a plurality of receiver input ports (310, 320),where the receiver input ports are connected to a pre-detection network (330), configured to perform mutual MIMO interference cancellation for each receiver radio branch, and to output pre-detection signals (331, 333) for two or more symbol streams of the LOS-MIMO receiver,where the pre-detection signals (331, 333) are fed in a SIC sequence to respective information symbol detectors (332, 334) of the symbol streams, where the output of each information symbol detector in the SIC sequence is arranged to be phase shifted (352) and added to pre-detection signals yet to be fed to its respective information symbol detector,where the output of the information symbol detectors of the symbol streams constitutes an output (361, 362) of the LOS MIMO microwave radio link receiver (300).
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公开(公告)号：WO2023022638A1
公开(公告)日：2023-02-23
申请号：PCT/SE2021/050812
申请日：2021-08-18
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： MAKKI, Behrooz , ÅSTRÖM, Magnus , HUANG, Yezi , BAO, Lei
Abstract: Systems and methods for adaptive simultaneous reception in an Integrated Access and Backhaul (IAB) network. In one embodiment, a method performed by an IAB node comprises obtaining channel quality or received signal power for each of two or more transmitting nodes at the IAB node and selecting a combination of scheduling configurations for the transmitting nodes based on the channel qualities or received signal powers. The combination of scheduling configurations comprises a multiple access scheme for the transmitting nodes selected from a set of multiple access schemes comprising one or more multiple access schemes that enable simultaneous reception and one or more multiple access schemes that enable non-simultaneous reception. The method further comprises transmitting one or more messages to the transmitting nodes that provide information for configuration of or request the transmitting nodes to transmit signals to the IAB node in accordance with the selected multiple access scheme and receiving signals from the transmitting nodes.
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Patent Agency Ranking
公开(公告)号：WO2022238444A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062705
申请日：2022-05-10
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： DORTSCHY, Boris , BAO, Lei , ÅSTRÖM, Magnus
IPC: H04B7/155 , H04L5/00 , H04B7/15542 , H04L5/0007 , H04L5/001 , H04L5/0058 , H04L5/0062 , H04L5/0064 , H04L5/0094
Abstract: According to some embodiments, a method is performed by an integrated access and backhaul (IAB) node in dual connectivity where an IAB-MT is connected to two IAB parents and two IAB donors. The method comprises: obtaining (1212) a semi-static flexible resource configuration from an IAB donor; obtaining (1214) a first uplink/downlink resource indication for a semi-statically configured flexible resource from a first IAB parent and a second uplink/downlink resource indication from a second IAB parent; obtaining (1216) a priority associated with the first IAB parent and a priority associated with the second IAB parent; determining (1218) the first and second uplink/downlink resource indications conflict; selecting (1220) one of the first and second uplink/downlink resource indications based on the priority associated with the first and second IAB parents; and communicating (1222) with the two IAB parents according to the selected uplink/downlink resource indication.
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公开(公告)号：WO2022117194A1
公开(公告)日：2022-06-09
申请号：PCT/EP2020/084486
申请日：2020-12-03
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： NGUYEN, Sinh , CZEGLEDI, Cristian , BAO, Lei
Abstract: A computer-implemented method, performed in a network node, for estimating one or more relative channel gains and one or more channel phases associated with a wireless propagation channel (H) between N transmit antennas (220) and M receive antennas (230) in a line-of-sight, LOS, multiple-input multiple-output, MIMO, communication system (200), the method comprising configuring a channel equalizer to compensate for differences in complex gain over the wireless propagation channel (H) between the N transmit antennas (220) and the M receive antennas (230), configuring a phase tracker to compensate for differences in phase between a set of transmit side oscillators (240) at the N transmit antennas (220) and a set of receive side oscillators (250) at the M receive antennas (230), obtaining a set of equalizer coefficients (W) from the channel equalizer indicative of relative complex gain differences of propagation paths between the N transmit antennas (220) and the M receive antennas (230), obtaining a set of phase compensation values (E) from the phase tracker representing estimated phases of the set of transmit side oscillators and the set of receive side oscillators, and upon the channel equalizer meeting a convergence criterion, estimating the one or more relative channel gains and the one or more channel phases based on an inverse function of the set of equalizer coefficients (W) and the set of phase compensation values (E).
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公开(公告)号：WO2022029580A1
公开(公告)日：2022-02-10
申请号：PCT/IB2021/056972
申请日：2021-07-30
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： HUANG, Yezi , BAO, Lei , ÅSTRÖM, Magnus , DORTSCHY, Boris , MAKKI, Behrooz
IPC: H04W16/10 , H04B7/155 , H04W72/04 , H04W88/08 , H04B7/15528 , H04W28/0808 , H04W40/00 , H04W72/0406 , H04W72/048 , H04W76/15 , H04W88/085
Abstract: Embodiments include methods for an integrated access backhaul (IAB) node configured to communicate with first and second parent nodes in a wireless network. Such methods include determining the IAB node's multiplexing capability between a first parent link with the first parent node and a second parent link with the second parent node, and sending an indication of the multiplexing capability to one or more ancestor nodes in the wireless network. Other embodiments include complementary methods for the first parent node and an IAB donor centralized unit (CU) configured to communicate with the IAB node via at least the first parent node. Other embodiments include IAB nodes and IAB donor CUs configured to perform such methods.
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公开(公告)号：WO2022029309A1
公开(公告)日：2022-02-10
申请号：PCT/EP2021/072048
申请日：2021-08-06
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： ÅSTRÖM, Magnus , DORTSCHY, Boris , HUANG, Yezi , BAO, Lei , MAKKI, Behrooz
IPC: H04W52/02 , H04W52/38 , H04W84/04 , H04W52/46 , H04W52/08 , H04W52/0216 , H04W52/0219 , H04W52/262 , H04W52/367 , H04W52/42 , H04W84/047
Abstract: A method, system and apparatus are disclosed for power control between integrated access and backhaul (IAB) nodes. In one embodiment, a first node (16, 22) is provided. The first node includes processing circuitry (68, 84) configured to transmit a power control request to a parent, integrated access and backhaul, IAB, node (16) where the power control request is configured to request an adjustment of a transmission power of the parent IAB node (16), receive a power control response from the parent IAB node (16), and perform at least one action associated with a second node (16, 22) based at least in part on the power control response.
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20.发明申请
公开(公告)号：WO2021066736A1
公开(公告)日：2021-04-08
申请号：PCT/SE2020/050947
申请日：2020-10-05
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： DAHLMAN, Erik , HUANG, Yezi , DORTSCHY, Boris , BAO, Lei
Abstract: Methods and apparatuses are disclosed for determining a muting pattern of a synchronization signal block (SSB) transmission for Integrated Access and Backhaul (IAB) node measurement. In one embodiment, a network node is configured to indicate a first muting pattern, the indication of the first muting pattern indicating at least one first synchronization signal block, SSB, transmission opportunity associated with SSB transmission configuration, STC, that is mutable by an Integrated Access Backhaul, IAB, node. In one embodiment, a network node is configured to determine a first muting pattern, the first muting pattern indicating at least one SSB transmission opportunity associated with a STC that is mutable by the network node; and mute the at least one first SSB transmission opportunity according to the determined first muting pattern.
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