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27 条记录 (耗时 0.054 秒)

    Beamforming in listen-before-talk environments
    1.
    发明授权
    Beamforming in listen-before-talk environments 有权

    公开(公告)号：US11516844B2

    公开(公告)日：2022-11-29

    申请号：US17077543

    申请日：2020-10-22

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Joao Vieira ,  Jung-Fu Cheng ,  Leif Wilhelmsson ,  Johan Nilsson ,  Sina Maleki

    IPC分类号： H04W74/08 ,  H04W16/28

    摘要： A beamforming method is disclosed of a multi-antenna transmitter configured for operation in a listen-before-talk (LBT) environment.
    The method comprises transmitting—in transmission resources of a collection of one or more transmission resources corresponding to an LBT sensing event—according to a primary emission pattern (e.g., a primary beam) having a main lobe in a primary angular direction associated with a channel path towards an intended receiver, and transmitting according to one or more secondary emission patterns. The one or more secondary emission patterns—when accumulated over the collection of transmission resources corresponding to the LBT sensing event—are configured to indicate channel occupancy in angular directions other than the primary angular direction.
    In some embodiments, the one or more secondary emission patterns comprises a plurality of secondary emission patterns (e.g., a plurality of secondary beams). Transmitting according to the one or more secondary emission patterns may comprise executing a sweep of the respective secondary beams over the collection of transmission resources corresponding to the LBT sensing event.
    In some embodiments, the one or more secondary emission patterns consists of a single secondary emission pattern (e.g., an omni-directional emission pattern).
    Corresponding apparatus, transmitter, network node, wireless communication device, and computer program product are also disclosed.

    Carrier frequency handling in clusters
    2.
    发明授权
    Carrier frequency handling in clusters 有权

    公开(公告)号：US10425885B2

    公开(公告)日：2019-09-24

    申请号：US16052191

    申请日：2018-08-01

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Bengt Lindoff ,  Johan Nilsson

    IPC分类号： H04W4/00 ,  H04W48/16 ,  H04W24/08 ,  H04W56/00

    摘要： There is provided mechanisms for carrier frequency handling in a cluster based communications network. According to one aspect there is provided a method performed by a wireless device camping on or served by a cluster head device associated with a cluster head carrier frequency. According to one aspect there is provided a method performed by a cluster head device associated with a cluster head carrier frequency. A corresponding wireless device, a corresponding cluster head device, and corresponding computer programs and computer program products are also provided.

    CARRIER FREQUENCY HANDLING IN CLUSTERS
    3.
    发明申请
    CARRIER FREQUENCY HANDLING IN CLUSTERS 审中-公开

    公开(公告)号：US20180343610A1

    公开(公告)日：2018-11-29

    申请号：US16052191

    申请日：2018-08-01

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Bengt Lindoff ,  Johan Nilsson

    IPC分类号： H04W48/16 ,  H04W56/00 ,  H04W24/08

    CPC分类号： H04W48/16 ,  H04W24/08 ,  H04W56/0015 ,  H04W56/0035

    摘要： There is provided mechanisms for carrier frequency handling in a cluster based communications network. According to one aspect there is provided a method performed by a wireless device camping on or served by a cluster head device associated with a cluster head carrier frequency. According to one aspect there is provided a method performed by a cluster head device associated with a cluster head carrier frequency. A corresponding wireless device, a corresponding cluster head device, and corresponding computer programs and computer program products are also provided.

    OVER-THE-AIR BEAMFORMING CALIBRATION
    6.
    发明公开
    OVER-THE-AIR BEAMFORMING CALIBRATION 审中-公开

    公开(公告)号：US20230155697A1

    公开(公告)日：2023-05-18

    申请号：US17919590

    申请日：2020-04-23

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Joao Vieira ,  Johan Nilsson ,  Magnus Åström

    IPC分类号： H04B17/12 ,  H04B17/14 ,  H04B17/21 ,  H04B7/06 ,  H04B7/08

    CPC分类号： H04B17/12 ,  H04B17/14 ,  H04B17/21 ,  H04B7/0691 ,  H04B7/0874 ,  H04B7/0617

    摘要： A method of over-the-air beamforming calibration is disclosed for a multi-antenna transceiver having a first plurality of antenna elements connected to respective transceiver chains. Beamforming calibration comprises determining respective beamforming calibration factors for the transceiver chains of the antenna elements of the first plurality. The method comprises determining a second plurality of measurement resources for calibration sounding, wherein the second plurality is smaller than the first plurality. The method also comprises (for each measurement resource of the second plurality) selecting one or more antenna elements of the first plurality for sounding signal transmission, wherein each antenna element of the first plurality is selected for one or more of the measurement resources of the second plurality. The method also comprises (using each measurement resource of the second plurality) overlappingly transmitting respective sounding signals by the selected one or more antenna elements. Corresponding apparatus, multi-antenna transceiver, wireless communication device and computer program product are also disclosed.

    ADAPTING QOS FOR A RADIO BEARER
    10.
    发明申请
    ADAPTING QOS FOR A RADIO BEARER 有权

    公开(公告)号：US20170142611A1

    公开(公告)日：2017-05-18

    申请号：US14651222

    申请日：2015-06-02

    申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    发明人： Niklas Andgart ,  Peter Alriksson ,  Joakim Axmon ,  Bengt Lindoff ,  Johan Nilsson

    IPC分类号： H04W28/02 ,  H04W72/04 ,  H04W4/00 ,  H04W72/08

    CPC分类号： H04W28/0268 ,  H04W4/70 ,  H04W28/0252 ,  H04W28/24 ,  H04W72/0433 ,  H04W72/085

    摘要： The present disclosure relates to a method performed in a radio device 4 connected to a communication network 1 comprising a core network (CN) and a Radio Access Network (RAN), where there is a communication bearer between the radio device and the CN via the RAN comprising a radio bearer between the radio device and a RAN node of the RAN, for adapting a Quality of Service (QoS) of the communication bearer. The method comprises, to the CN, sending a request for a first QoS to be associated with the communication bearer. The method also comprises exchanging data over the radio bearer in accordance with the first QoS of the communication bearer. The method also comprises, to the RAN, sending an indication that a second QoS, lower than the first QoS, should be used for the radio bearer. The method also comprises exchanging data over the radio bearer in accordance with the second QoS.