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公开(公告)号：WO2021066690A1
公开(公告)日：2021-04-08
申请号：PCT/SE2019/050965
申请日：2019-10-04
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： HUANG, Yezi , BAO, Lei , DORTSCHY, Boris , DAHLMAN, Erik
Abstract: There is disclosed a method of operating an Integrated Access and Backhaul (IAB) node (200, C, N3) in a wireless communication network, the IAB node being in a communication link with a second IAB node using a signaling beam, the IAB node further being scheduled to perform beam sweeping with a plurality of synchronisation beams, one of the synchronisation beams corresponding to the signaling beam; wherein a synchronisation beam is scheduled to carry synchronisation signaling; and wherein the method comprises performing beam sweeping such that the synchronisation beam corresponding to the signaling beam carries information signaling replacing the synchronisation signaling at least in part. The disclosure also pertains to related methods and devices.
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公开(公告)号：WO2016146160A1
公开(公告)日：2016-09-22
申请号：PCT/EP2015/055426
申请日：2015-03-16
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： OLSSON, Bengt-Erik , BAO, Lei
CPC classification number: H04B7/0408 , H04B7/0413 , H04B7/0613
Abstract: The present disclosure relates to a wireless communication node (1) comprising an antenna arrangement (2) with at least two antenna devices (3, 4, 5, 6; 3', 4', 5', 6') having corresponding main radiation beams (7, 8, 9, 10; 7', 8', 9', 10') and respective antenna radiation beam reflectors (12, 13, 14, 15; 12', 13', 14', 15') spatially separated from the wireless communication node (1). Each of the main radiation beams (7, 8, 9, 10) is directed towards its respective antenna radiation beam reflector (12, 13, 14, 15; 12', 13', 14', 15'). The radiation beam reflectors (12, 13, 14, 15; 12', 13', 14', 15') are positioned to configure the wireless communication node (1, 1') for multiple- input multiple-output (MIMO) communication at a carrier centre frequency (f c ) with at least one other wireless communication node (11, 11') via the antenna radiation beam reflectors (12, 13, 14, 15; 12', 13', 14', 15'). The present disclosure also relates to a corresponding system.
Abstract translation: 本公开涉及一种无线通信节点（1），其包括具有至少两个天线装置（3,4,5,6; 3'，4'，5'，6'）的天线装置（2），所述天线装置具有对应的主辐射 （7,8,9,10，7'，8'，9'，10'）和各个天线辐射束反射器（12,13,14,15，12'，13'，14'，15'）在空间上 与无线通信节点（1）分离。 每个主辐射束（7,8,9,10）指向其相应的天线辐射束反射器（12,13,14,15; 12'，13'，14'，15'）。 辐射束反射器（12,13,14,15，12'，13'，14'，15'）被定位成配置用于多输入多输出（MIMO）通信的无线通信节点（1,1'） 在经由所述天线辐射束反射器（12,13,14,15; 12'，13'，14'，15'）与至少一个其它无线通信节点（11,11'）的载波中心频率（fc）处。 本公开还涉及相应的系统。
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23.发明申请
公开(公告)号：WO2023012735A2
公开(公告)日：2023-02-09
申请号：PCT/IB2022/057292
申请日：2022-08-05
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： DORTSCHY, Boris , BARAC, Filip , ÅSTRÖM, Magnus , SHREEVASTAV, Ritesh , BAO, Lei
IPC: H04W76/15
Abstract: A method, system and apparatus for determination of compatible resource configurations in integrated access and backhaul (IAB) migration and topological redundancy are disclosed. According to one aspect, a method in a first IAB donor node includes receiving a first resource configuration for the first parent IAB node from a second IAB donor node, the first parent IAB node being in communication with a child IAB node. The method includes determining compatibility between the first resource configuration and a second resource configuration for a second parent IAB node. The method also includes determining whether to accept a request to establish a connection between the second parent IAB node and the child IAB node based at least in part on the compatibility determination.
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公开(公告)号：WO2022238490A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/062801
申请日：2022-05-11
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： ÅSTRÖM, Magnus , BAO, Lei , DORTSCHY, Boris , SUNDSTRÖM, Lars , MAKKI, Behrooz
IPC: H04W52/28 , H04W52/36 , H04W52/46 , H04W52/365 , H04W52/367
Abstract: Providing uplink (UL) power control in Integrated Access and Backhaul (IAB) nodes is disclosed herein. In one embodiment of a method performed in a network node for signaling a transmission power dynamic range of its IAB Mobile Termination (IAB-MT) to a second network node, the method comprises determining at least one 5dynamic range between two transmission power values. The method further comprises transmitting a dynamic range report to the second network node, wherein the dynamic range report comprises the at least one dynamic range.
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公开(公告)号：WO2022235200A1
公开(公告)日：2022-11-10
申请号：PCT/SE2022/050452
申请日：2022-05-09
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： DORTSCHY, Boris , BAO, Lei , ÅSTRÖM, Magnus
IPC: H04W72/12
Abstract: A method (1600) by a network node (760) operating as an Integrated Access Backhaul, IAB, node includes receiving (1602), from a first parent node of the IAB node, a first downlink control information, DCI, comprising a first availability indication for at least one resource for a cell. The network node also receives (1604), from a second parent node of the IAB node, a second DCI comprising a second availability indication for the at least one resource for the cell. Based on the second availability indication indicated in the second DCI, the network node determines (1606) to use the first availability indication for the at least one resource for the cell.
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Patent Agency Ranking
公开(公告)号：WO2022214528A1
公开(公告)日：2022-10-13
申请号：PCT/EP2022/059078
申请日：2022-04-06
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： ÅSTRÖM, Magnus , BAO, Lei , MAKKI, Behroooz
IPC: H04B7/155
Abstract: Embodiments include methods for an integrated access backhaul (IAB) node serving a cell in a wireless network. The IAB node can include an IAB distributed unit (IAB-DU) and an IAB mobile terminal (IAB-MT). Such methods include sending, to an IAB donor centralized unit (CU) in the wireless network, an indication of one or more simultaneous operation capabilities of the IAB- DU and the IAB-MT and receiving from the IAB donor CU a multiplexing configuration based on the simultaneous operation capabilities. Such methods also include configuring one or more of the following for operation in the cell according to the received multiplexing configuration: one or more child IAB nodes; and one or more user equipment (UEs). Other embodiments include complementary methods for an IAB donor CU and a parent IAB node of the IAB node, as well as IAB nodes and IAB donor CUs configured to perform such methods.
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公开(公告)号：WO2022157749A1
公开(公告)日：2022-07-28
申请号：PCT/IB2022/050653
申请日：2022-01-25
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： BAO, Lei , BARAC, Filip , ÅSTRÖM, Magnus , DORTSCHY, Boris , HUANG, Yezi
IPC: H04B7/155
Abstract: There is provided a method for resource coordination in a first donor Integrated Access Backhaul (IAB) node connected to a first parent IAB node which is connected to an IAB node, the IAB node further being connected to a second parent IAB node which is connected to a second donor IAB node. The method comprises: sending, to the second donor IAB node, an indication of a first resource configuration for the IAB node, the first resource configuration determined by the first donor IAB node; receiving, from the second donor IAB node, a request for a second resource configuration for the IAB node; and determining a resource configuration for the IAB node based at least on one of the first resource configuration and the second resource configuration.
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公开(公告)号：WO2022150008A1
公开(公告)日：2022-07-14
申请号：PCT/SE2022/050007
申请日：2022-01-07
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： HUANG, Yezi , DORTSCHY, Boris , BAO, Lei , DAHLMAN, Erik , ÅSTRÖM, Magnus , MAKKI, Behrooz
Abstract: Systems and methods for reducing signaling overhead between an Integrated Access and Backhaul (IAB) node and its parent node when switching between timing alignment cases are disclosed. In some embodiments, the method comprises sending one or more sets of desired numbers of guard symbols for two or more timing switching groups, respectively. The method further comprises receiving one or more sets of provided numbers of guard symbols for the two or more timing switching groups, respectively and determining available time resources for uplink transmission and/or downlink reception in two adjacent time units based on one of the one or more sets of provided numbers of guard symbols for one of the two or more timing switching groups that corresponds to timing alignment cases used in the two adjacent time units.
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公开(公告)号：WO2022084301A1
公开(公告)日：2022-04-28
申请号：PCT/EP2021/078923
申请日：2021-10-19
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： HUANG, Yezi , BAO, Lei , ÅSTRÖM, Magnus , DORTSCHY, Boris , MAKKI, Behrooz
IPC: H04B7/155
Abstract: embodiments, an integrated access and backhaul, IAB, node (16) including an IAB- mobile termination, MT (45), and an IAB-distributed unit, DU (47) is provided. The IAB node (16) includes processing circuitry (42) configured to determine at least one multiplexing condition associated with a multiplexing capability where the multiplexing capability is associated at least with a capability of performing simultaneous communications by the IAB-MT (45) and IAB-DU (47), and transmit, to a another IAB node (16), information associated with the determined at least one dynamic multiplexing condition.
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公开(公告)号：WO2021229510A1
公开(公告)日：2021-11-18
申请号：PCT/IB2021/054127
申请日：2021-05-13
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： DORTSCHY, Boris , ÅSTRÖM, Magnus , DAHLMAN, Erik , BAO, Lei , ERIKSSON, Per-Erik
IPC: H04W56/00 , H04W56/0015 , H04W56/0045
Abstract: Systems and methods are disclosed herein for aligning transmission timing on different carrier frequencies in an Integrated Access and Backhaul (IAB) network. In one embodiment, a method performed by an IAB node for an IAB network comprises receiving, from an IAB parent node, information about a timing offset, T'D, wherein the timing offset, T'D, is equal to or a 5 function of a timing offset, TD, between a downlink timing of a first carrier at the IAB parent node and a downlink timing of a second carrier at the IAB parent node, the second carrier being different than the first carrier. The method further comprises deriving a downlink timing offset for the second carrier at the IAB node based on the information about the timing offset, T'D, and performing one or more downlink transmission at the IAB node on the second carrier based on 0 the derived downlink timing offset.
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