公开(公告)号：WO2020143279A1

公开(公告)日：2020-07-16

申请号：PCT/CN2019/113401

申请日：2019-10-25

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  LIN, Zhipeng

Inventor： BAO, Lei ,  DAHLMAN, Erik ,  LIN, Zhipeng

IPC: H04W48/08

Abstract: An IAB node performs a method for determining a periodicity of a SSB and/or a RMSI for use in an IAB backhaul link. The method may comprise one or more of: using a predetermined periodicity value; determining a periodicity value based on at least one different parameter; receiving a signaling message indicating a periodicity value and using the indicated periodicity value for the IAB backhaul link; and selecting a periodicity value from a plurality of permitted periodicity values.

公开(公告)号：WO2023078780A1

公开(公告)日：2023-05-11

申请号：PCT/EP2022/080105

申请日：2022-10-27

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÅSTRÖM, Magnus ,  DORTSCHY, Boris ,  BAO, Lei

IPC: H04L5/00 ,  H04B7/14 ,  H04W72/00 ,  H04W88/04

Abstract: A method, system and apparatus for resource block (RB) set configuration in an integrated access and backhaul (IAB) network for frequency domain resources are disclosed.According to one aspect, a method in an IAB donor node in communication with a first IAB node includes receiving a resource multiplexing capability from the first IAB node. The method includes determining a resource block, RB, set configuration based at least in part on the resource multiplexing capability. The method further includes determining a DU resource configuration for the first IAB node based at least in part on the RB set configuration; and transmitting the DU resource configuration to the first IAB node.

公开(公告)号：WO2022154701A1

公开(公告)日：2022-07-21

申请号：PCT/SE2021/050025

申请日：2021-01-18

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HUANG, Yezi ,  DORTSCHY, Boris ,  ÅSTRÖM, Magnus ,  BAO, Lei ,  MAKKI, Behrooz

IPC: H04B7/155

Abstract: There is disclosed a method of operating an Integrated Access and Backhaul, IAB, parent node for a wireless communication network, the method comprising transmitting, to an Integrated Access and Backhaul, IAB, child node, an indication of the availability of soft frequency resources. The disclosure also pertains to related methods and devices, e.g. pertaining to a Integrated Access and Backhaul child node, or a program product.

公开(公告)号：WO2022086431A1

公开(公告)日：2022-04-28

申请号：PCT/SE2021/051070

申请日：2021-10-22

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HUANG, Yezi ,  DORTSCHY, Boris ,  BAO, Lei ,  ÅSTRÖM, Magnus ,  MAKKI, Behrooz

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

Abstract: A network function unit (e.g., an Integrated Access and Backhaul-donor node Central Unit, IAB-donor-CU 300, an Operations Administration and Maintenance node, OAM node, or a parent node 200) configures space-domain resources in an IAB-node 100 (e.g., an IAB-Distribution Unit DU 110) with different resource sets. Each resource set may restrict certain behavior (e.g., the operation of the access unit) of the IAB-node in terms of transmission and/or reception in a certain spatial radio resource, e.g., the one or more direction units (e.g., a radio beam).

公开(公告)号：WO2021205343A1

公开(公告)日：2021-10-14

申请号：PCT/IB2021/052852

申请日：2021-04-06

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： ÅSTRÖM, Magnus ,  DAHLMAN, Erik ,  DORTSCHY, Boris ,  BAO, Lei ,  MAKKI, Behrooz

IPC: H04L5/00

Abstract: Systems and methods are disclosed herein for frequency domain resource configuration in an Integrated Access and Backhaul (IAB) node. In one embodiment, a method performed by an IAB node configured to operate in a spectrum band comprises receiving a configuration message(s) related to the spectrum band comprising information that defines two or more modes of operation of a distributed unit (DU) of the IAB node that are allowed for two or more subsets of a plurality of subcarriers within the spectrum band of the IAB node, respectively. The method further comprises allocating at least one of the subsets of the plurality of subcarriers within the spectrum band for performing an operation based on a mode of operation of the IAB node and the information comprised in the configuration message(s) and performing the operation on the allocated at least one of the subsets of the plurality of subcarriers.

公开(公告)号：WO2018177562A1

公开(公告)日：2018-10-04

申请号：PCT/EP2017/057794

申请日：2017-04-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： BAO, Lei ,  SHAHSAVARI, Sima ,  HANSRYD, Jonas ,  HELLGREN, Filip

IPC: H04B7/06

CPC classification number: H04B7/0623 ,  H04B17/318 ,  H04W52/243 ,  H04W52/245 ,  H04W52/42

Abstract: Methods and arrangements for adaptive power control are provided. A MIMO system, comprises at least two spatial receiver antennas (21-1, 21-2,.., 21-M) and at least two spatial transmitter antennas (11-1, 11-2,.., 11-N). A processor units determines whether first signal quality parameter associated with a first receiver antenna is below a first threshold criteria (Thr_C/l_l); and in response to it measures a second parameter or attempts to decrease a transmission power of a transmitter associated with a second receiver antenna. The processor unit may also increase the transmission power of the transmitter associated with the first receiver.

公开(公告)号：WO2023006819A1

公开(公告)日：2023-02-02

申请号：PCT/EP2022/071086

申请日：2022-07-27

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： SHREEVASTAV, Ritesh ,  BARAC, Filip ,  DORTSCHY, Boris ,  BELLESCHI, Marco ,  ÅSTRÖM, Magnus ,  SAHLIN, Henrik ,  BAO, Lei

IPC: H04W56/00

Abstract: A method performed by an integrated access and backhaul (IAB) donor node (102, 802a, 802b) for synchronized activation of a resource configuration. The method includes determining (906), by the IAB-donor node, a synchronized update time for performing a synchronized configuration update in a plurality of parent IAB-nodes (804a, 804b) and/or a child IAB-node (806). The child IAB-node is dual-connected to the plurality of parent IAB-nodes. The method additionally includes transmitting (908), by the IAB-donor node, the synchronized update time to at least each parent IAB-node and/or the child IAB-node.

公开(公告)号：WO2023002035A1

公开(公告)日：2023-01-26

申请号：PCT/EP2022/070669

申请日：2022-07-22

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： NILSSON, Andreas ,  ÅSTRÖM, Magnus ,  DORTSCHY, Boris ,  BAO, Lei

IPC: H04B7/06 ,  H04B7/08 ,  H04B7/155

Abstract: A method, system and apparatus are provided. In one embodiment, an IAB node (16) is provided. The IAB node (16) includes processing circuitry (68) configured to determine at least one restricted beam for an lAB-distributed unit, IAB- DU, of a child IAB node (16) when operating in spatial division multiplexing, SDM, and indicate the at least one restricted beam for configuring the child IAB node (16) where the indication of the at least one restricted beam corresponds to a deactivation of a Transmission Configuration Indicator, TCI state, which would be available when operating in time division multiplexing, TDM.

公开(公告)号：WO2022117193A1

公开(公告)日：2022-06-09

申请号：PCT/EP2020/084482

申请日：2020-12-03

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： CZEGLEDI, Cristian ,  BAO, Lei ,  NGUYEN, Sinh

IPC: H04B7/06 ,  H04B7/08

Abstract: Method for propagation channel estimation in an NxM Multiple- Input-Multiple-Output (MIMO) communication system comprising a transmitter (202) comprising N transmit antennas and a receiver (204) comprising M receive antennas and a MIMO equalizer (206) comprising multiple taps, where N > 1 and M > 1. The method includes producing (s402) a single tap equalizer (Q) based on a multi-tap equalizer (Q). The method also includes producing (s404) an inverse effective-channel estimate (Qe) based on Q, The method also includes inverting (s406) Qe to produce an effective-channel estimate (He), The method also includes producing (s408) Ha based on He- wherein Ha can be used to determine one or more performance metrics.

公开(公告)号：WO2022086430A1

公开(公告)日：2022-04-28

申请号：PCT/SE2021/051069

申请日：2021-10-22

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HUANG, Yezi ,  BAO, Lei ,  ÅSTRÖM, Magnus ,  DORTSCHY, Boris ,  MAKKI, Behrooz

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/34 ,  H04W28/00 ,  H04W40/02 ,  H04W92/04

Abstract: Systems and methods are disclosed for Integrated Access and Backhaul (IAB) hierarchical Distributed Unit (DU) resource configuration. In one embodiment, a method performed by an IAB node comprises determining a first multiplexing capability of the IAB node at a first time, sending information that is indicative of the first multiplexing capability of the IAB node to an IAB donor node, and receiving a firstresource configuration profile from the IAB donor node. The method further comprises determining a second actual multiplexing capability of the IAB node at a second time that is subsequent to the first time and determining a valid resource configuration for the IAB node based on the second actual multiplexing capability of the IAB node. The method further comprises scheduling transmission on one or more child backhaul links and/or one or more access links of the IAB node based on the valid resource configuration.