公开(公告)号：US12236967B2

公开(公告)日：2025-02-25

申请号：US16722569

申请日：2019-12-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Erik Norvell ,  Volodya Grancharov

IPC: G10L19/002 ,  G10L19/02 ,  G10L19/028 ,  G10L19/038 ,  G10L25/51 ,  G10L19/18 ,  G10L25/06 ,  G10L25/18 ,  G10L25/21 ,  H04L12/70

Abstract: An audio signal, having first and second regions of frequency spectrum, is coded. Spectral peaks in the first region are encoded by a first coding method. For a segment of the audio signal, a relation between energy of bands in the first and second regions is determined. A relation between the energy of the band in the second region and energy of neighboring bands in the second region is determined. A determination is made whether available bits are sufficient for encoding at least one non-peak segment of the first region and the band in the second region. Responsive to first and second relations fulfilling a respective predetermined criterion and a sufficient number of bits, encoding the band in the second region using a second coding method different from the first coding method, and otherwise, subjecting the band in the second region to BandWidth Extension BWE or noise fill.

公开(公告)号：US12233728B2

公开(公告)日：2025-02-25

申请号：US18030885

申请日：2020-10-08

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Wojciech Potentas ,  Grzegorz Bem

IPC: B60L53/18 ,  B60L53/80 ,  B64U50/34 ,  B64U50/39 ,  B64U101/60 ,  B65G13/04

Abstract: A conveyor arrangement for airborne battery replacement between an aerial supply vehicle having a store of replacement batteries suitable to power electric aerial vehicles and an electric aerial vehicle powered by a set of replaceable batteries is disclosed. The conveyor arrangement is configured to convey batteries between the aerial supply vehicle and the electric aerial vehicle during flight to replace a replaceable battery from the set of the electric aerial vehicle by a replacement battery from the store of the aerial supply vehicle.

公开(公告)号：US12232079B2

公开(公告)日：2025-02-18

申请号：US18480542

申请日：2023-10-04

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Johan Rune ,  Claes-Göran Persson

IPC: H04W68/00 ,  G01L9/00 ,  H04L5/14 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/23

Abstract: According to some embodiments, methods are provided to operate a base station of a wireless communication network. For example, parameters may be generated that define a plurality of potential PDCCH monitoring occasions and that define a plurality of paging occasions, wherein each one of the plurality of paging occasions includes a respective subset of the plurality of potential PDCCH monitoring occasions, wherein consecutive paging occasions are spaced apart in time with at least one of the potential PDCCH monitoring occasions therebetween not being included in any of the plurality of paging occasions. The parameters are transmitted over a radio interface to a wireless device. Related methods of operating wireless devices, related base stations, and related wireless devices are also discussed.

公开(公告)号：US12231875B2

公开(公告)日：2025-02-18

申请号：US17436327

申请日：2020-02-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Monica Wifvesson ,  Noamen Ben Henda

IPC: H04W12/033 ,  H04W12/37 ,  H04W76/15

Abstract: A method performed by a core network node in a core network of a wireless communication system includes receiving a first request to establish a first protocol data unit, PDU, session between a user equipment, UE and a user plane function in the core network, generating user plane, UP, security enforcement information, to be applied to the first PDU session, transmitting the UP security enforcement information to a radio access network, RAN, node for establishing the first PDU session, and storing the UP security enforcement information for use in establishing a subsequent PDU session for the UE.

公开(公告)号：US12231432B2

公开(公告)日：2025-02-18

申请号：US17798533

申请日：2021-01-21

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pablo Martinez De La Cruz ,  Francisco Javier Garcia Garcia ,  Jesus Angel De Gregorio Rodriguez ,  Maria Esther Bas Sanchez

IPC: G06F21/00 ,  H04L9/40

Abstract: There is provided mechanisms for enabling selection of service-providing NFs in a 3GPP communication network. A method is performed by an NRF. The method comprises obtaining one register request from each of the service-providing NFs. Each registration request comprises an NF profile. Each NF profile comprises a security setting attribute. The method comprises storing the NF profiles of the service-providing NFs. The method comprises obtaining a discovery request from a service-requesting NF. The request indicates an NF type. The method comprises providing a discovery response to the service-requesting NF. The discovery response comprises the NF profile of at least one of the service-providing NFs of the NF type, thereby enabling selection of the service-providing NFs. The security setting attribute may pertain to support for mutual TLS and/or for use of OAuth-2 based authorization.

公开(公告)号：US12225413B2

公开(公告)日：2025-02-11

申请号：US17630778

申请日：2020-08-13

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Mohammad Mozaffari ,  Johan Bergman ,  Anders Wallén ,  Mattias Frenne

IPC: H04W28/26 ,  H04L1/1607 ,  H04W72/0446 ,  H04W72/0453

Abstract: A method and network node for flexible indication of resources in LTE-M using bitmaps are disclosed. According to one aspect, a method includes indicating to the wireless device a set of reserved resources for machine communications in compatibility with a broadband radio access technology sharing resources in a time frame and frequency band that encompasses the set of reserved resources, the indicating using a two level bitmap operating in the time-domain, a first bitmap level of the two level bitmap indicating a first set of subframes containing reserved resources, and a second bitmap level of the two level bitmap indicating reserved symbols within an indicated subframe.

公开(公告)号：US12213066B2

公开(公告)日：2025-01-28

申请号：US17851188

申请日：2022-06-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qianxi Lu ,  Marco Belleschi

IPC: H04W4/00 ,  H04W4/40 ,  H04W4/70 ,  H04W48/18 ,  H04W76/14 ,  H04W84/04

Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for network selection. A method implemented at a terminal device comprises obtaining an indication of a first carrier that provides cross-carrier configuration of a second carrier for device to device, D2D, communication; and selecting, from a list of authorized networks, a serving network based on the second carrier and the obtained indication. With embodiments of the disclosure, support for device to device communication can be improved.

公开(公告)号：US12211635B2

公开(公告)日：2025-01-28

申请号：US17438424

申请日：2020-03-10

Applicant: HITACHI ENERGY LTD

Inventor： Yong Wang ,  Jens Tepper ,  Jiahua Weng

IPC: H01F27/08 ,  H01F27/02 ,  H01F27/06

Abstract: An arrangement to cool a coil, comprising an enclosure, which at least partially incorporates or houses the coil, and a device to create an airflow to cool the coil, wherein the coil comprises at least one cooling channel to guide the airflow through the windings of the coil and an outer air duct lying radially in the outer circumference area of the coil or lying radially inside below an outer part of the coil, characterized in that an air guidance plate is placed at or near one longitudinal end of the outer air duct and/or of the coil to prevent bypasses of the airflow and/or to block at least partially the airflow through and/or along the outer air duct, achieves the object to cool a coil, especially a coil of a transformer, in an efficient manner using space-saving means.

公开(公告)号：US12192856B2

公开(公告)日：2025-01-07

申请号：US17421496

申请日：2019-12-18

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Shehzad Ali Ashraf ,  Wanlu Sun ,  Hieu Do

IPC: H04W4/06 ,  H04W4/44 ,  H04W4/46 ,  H04W76/14 ,  H04W76/40 ,  H04W76/23

Abstract: Methods, computer programs and receiving wireless devices for operating a receiving wireless device associated with a group are provided, wherein the group includes the receiving wireless device and a transmitting wireless device. The method includes receiving a groupcast data packet from the transmitting wireless device of the group. The method further includes determining a distance of the receiving wireless device from the transmitting wireless device. The method further includes selecting a communication resource for one of an Acknowledgement, ACK, message or Negative Acknowledgement, NACK, message for the groupcast data packet, wherein the communication resource is selected based on the distance from the transmitting wireless device. The method further includes transmitting the one of the ACK message or NACK message for the groupcast data packet using the communication resource selected based on the distance from the transmitting wireless device.

公开(公告)号：US12191951B2

公开(公告)日：2025-01-07

申请号：US17299088

申请日：2018-12-05

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Niklas Wernersson ,  Maksym Girnyk ,  Roy Timo

IPC: H04B7/06 ,  H04L5/00

Abstract: The present disclosure relates to a method performed by a wireless node (100) for transmitting reference symbols, the node comprising an antenna with a plurality of antenna ports, the method comprising configuring channel state information, CSI, measurements of a user equipment, UE (110), by transmitting a downlink message, transmitting a first reference symbol using the plurality of antenna ports, wherein the first reference symbol is transmitted using a first number N of antenna ports, transmitting a second reference symbol using the plurality of antenna ports, wherein the second reference symbol is transmitted using a second number K of antenna ports, wherein the first reference symbol is transmitted using a first port distance smaller than a second port distance used when transmitting the second reference symbol, and wherein the K used antenna ports are less than the N used antenna ports.