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公开(公告)号：US10448355B2
公开(公告)日：2019-10-15
申请号：US15766273
申请日：2018-03-06
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Andres Reial , Fredrik Nordström , Magnus Åström
IPC: H04W24/00 , H04W64/00 , G01S5/00 , G01S5/10 , H04B7/0456 , G01S11/06 , H04B17/318 , H04W24/10 , G01S11/04
Abstract: A technique for locating a radio device within a region covered by a radio access network, RAN is described. The RAN includes a plurality of transmission and reception points, TRPs. As to a method aspect of the technique, reports indicative of measurements performed by the radio device based on radio beams transmitted from different TRPs of the RAN are received. Each of the radio beams correspond to a radio propagation direction from the respective TRP. The radio device is located based on a combination of the radio propagation directions corresponding to radio beams transmitted from at least two of the TRPs of the RAN.
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公开(公告)号：US10412656B2
公开(公告)日：2019-09-10
申请号：US15578578
申请日：2015-06-22
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Bengt Lindoff
Abstract: The proposed technology relates to path selection in wireless mesh networks. In particular the disclosure relates to methods for selection of one or more transmission paths from an originating node to a target node in a wireless mesh network, wherein there are at least two possible transmission paths between the originating node and the target node. More specifically, the disclosure proposes a method, performed in an originating node in a wireless network comprising several nodes wirelessly connected to each other, for enabling selection of a transmission path from the originating node to a target node, wherein there are at least two possible transmission paths between the originating node and the target node. The method comprises the steps of receiving SI discovery signals from nodes in the at least two possible transmission paths and estimating S2, based on the received discovery signals, radio channels H for transmission from the originating node to the nodes transmitting the discovery signals. The method further comprises calculating S3, for different transmission modes, based on the estimated radio channels, metrics of links from the originating node to the nodes transmitting the discovery signals, wherein at least one of the transmission modes involves simultaneous transmission from the originating node to at least two of the nodes transmitting the discovery signals and transmitting S4 the calculated metrics to an adjacent node. The disclosure also relates to the corresponding apparatuses and computer programs.
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公开(公告)号：US10306651B2
公开(公告)日：2019-05-28
申请号：US15515182
申请日：2017-01-31
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Lars Sundström , Magnus Åström
Abstract: A method (20) of scheduling performed by a network node (3) is disclosed. The network node (3) comprises a distributed local oscillator architecture in which elements (181, . . . , 18i, . . . , 18N) of an antenna array (14) have at least partly uncorrelated local oscillator signals, and the network node (3) has wireless connectivity to at least two transmitter nodes (2a, 2b). The method (20) comprises calculating (21) a phase noise value between one or more layers received in each element (181, . . . , 18i, . . . , 18N) from a first transmitter node (2a) and one or more layers received in each element (181, . . . , 18i, . . . , 18N) from a second transmitter node (2b), and determining (22) a scheduling allocation for the at least two transmitter nodes (2a, 2b), taking the calculated phase noise value into account. A network node (3), computer program and computer program product are also provided.
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公开(公告)号：US12250037B2
公开(公告)日：2025-03-11
申请号：US18026372
申请日：2020-09-16
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Joao Vieira
Abstract: A beamforming selection method of a first wireless communication node is disclosed. The method includes receiving first reference signaling, transmitted from a second wireless communication node using a first beamforming setting, generating a first channel estimate based on the first reference signaling, and transmitting, using a second beamforming setting, second reference signaling for reception by the second wireless communication node, wherein each coefficient of the second beamforming setting represents a complex conjugate of a corresponding component of the first channel estimate.
In some embodiments, the method further includes iterating the receiving, generating, and transmitting steps until a stopping criterion is met.
For example, the stopping criterion may include that a number of iterations performed equals a maximum number of iterations, and/or that a beamforming convergence criterion is met. Corresponding apparatus, wireless communication node and computer program product are also disclosed.
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公开(公告)号：US12170970B2
公开(公告)日：2024-12-17
申请号：US17427699
申请日：2020-02-13
Applicant: Telefonaktiebolaget LM Ericsson (PUBL)
Inventor： Magnus Åström , Ritesh Shreevastav , Stefan Wänstedt , Johan Bergman
IPC: H04W56/00 , H04L1/1607 , H04L5/00
Abstract: Embodiments include methods, performed by a network node in a wireless network, for signaling resynchronization signal (RSS) configurations of neighbor cells to one or more user equipment (UEs). Such methods include encoding a plurality of parameters of respective RSS configurations of one or more neighbor cells. For each particular neighbor cell, the parameters can include one or more RSS frequency locations and an RSS time offset for the particular neighbor cell, and the encoding can be based on a bitmap and a parameter associated with the particular neighbor cell (e.g., a physical cell ID). Such methods also include transmitting, to the one or more UEs, at least a portion of the encoded parameters of the respective RSS configurations of the neighbor cells. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.
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46.发明授权
公开(公告)号：US12143934B2
公开(公告)日：2024-11-12
申请号：US17280263
申请日：2019-09-27
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Andreas Höglund , Magnus Åström , Anders Wallén , Yutao Sui
Abstract: Embodiments relate to e.g. a method performed by radio network node (12) for paging a UE (10) in a wireless communication network. The UE (10) transmits a paging signal on a carrier to the UE (10), wherein the carrier is associated with a second paging signal for a second type of UEs. A first number of carriers are configured for a first paging signal of a first type of UEs and a second number of carriers are configured for the second paging signal of the second type of UEs, wherein the first paging signal comprises a first wake-up signal, WUS, and wherein the second paging signal comprises a group wake up signal, WUS, for a group of UEs of the second type of UEs.
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公开(公告)号：US12022395B2
公开(公告)日：2024-06-25
申请号：US17991466
申请日：2022-11-21
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Andreas Höglund , Anders Wallén
CPC classification number: H04W52/0235 , H04W52/0254 , H04W68/02
Abstract: A network node is arranged to operate in a cell of a cellular communication system. The network node comprises an interface towards the cellular communication system where the interface is arranged to receive paging information for an idle user equipment, UE, a paging handler arranged to determine a mode of power saving for the UE, and to determine timing for a wake-up signal based on the determined mode and the received paging information, and a transmitter arranged to transmit the wake-up signal at the determined timing. A method of the network node comprises receiving paging information for an idle user equipment, UE, from the cellular communication system, determining a mode of power saving for the UE, determining timing for a wake-up signal based on the determined mode and the received paging information, and transmitting the wake-up signal at the determined timing.
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公开(公告)号：US11828837B2
公开(公告)日：2023-11-28
申请号：US17416153
申请日：2018-12-21
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Bengt Lindoff
IPC: G01S13/524 , G01S13/10 , G01S13/86
CPC classification number: G01S13/5242 , G01S13/103 , G01S13/867
Abstract: A device and method therein for improving measurement result made by a radar unit are disclosed. The device comprises the radar unit and at least one motion sensor unit. The radar unit transmits at least one radar pulse in a frequency range and receives at least one radar pulse response associated to reflections of the at least one transmitted radar pulse. The radar unit determines at least one measurement based on the transmitted and received radar pulses. The radar unit further receives information on movement of the device from the at least one motion sensor unit during radar pulse transmission and reception and adjust the at least one measurement based on received information on movement of the device from the at least one motion sensor unit.
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公开(公告)号：US11570725B2
公开(公告)日：2023-01-31
申请号：US16469765
申请日：2016-12-22
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Bo Hagerman , Bengt Lindoff , Fredrik Nordström
Abstract: A method and a network node (300) for enabling wireless communication with a wireless device (302), wherein no more than a pre-determined maximum total transmit power is available for downlink transmission by the network node (300). When detecting that the wireless device (302) requires an extended transmission range (300B) which is larger than a nominal transmission range (300A), a boosted transmit power is determined and used for transmitting a first set of channels and/or signals to be used by the wireless device (302) to achieve the extended transmission range (300B). An attenuated transmit power is also determined and used for transmitting a second set of channels and/or signals not included in the first set of channels and/or signals, which provides a slightly reduced transmission range (300C) for the second set. The boosted transmit power is thus higher than a nominal transmit power, and the attenuated transmit power is lower than the nominal transmit power, so that the total transmit power used for transmitting said first and second sets does not exceed the pre-determined maximum total transmit power.
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公开(公告)号：US11540218B2
公开(公告)日：2022-12-27
申请号：US16971056
申请日：2019-01-23
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Magnus Åström , Andreas Höglund , Anders Wallén
Abstract: A network node is arranged to operate in a cell of a cellular communication system. The network node includes an interface towards the cellular communication system where the interface is arranged to receive paging information for an idle user equipment, UE, a paging handler arranged to determine a mode of power saving for the UE, and to determine timing for a wake-up signal based on the determined mode and the received paging information, and a transmitter arranged to transmit the wake-up signal at the determined timing. A method of the network node includes receiving paging information for an idle user equipment, UE, from the cellular communication system, determining a mode of power saving for the UE, determining timing for a wake-up signal based on the determined mode and the received paging information, and transmitting the wake-up signal at the determined timing.
