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    Resource selection for random access
    32.
    发明授权
    Resource selection for random access 有权

    公开(公告)号：US12022530B2

    公开(公告)日：2024-06-25

    申请号：US17428871

    申请日：2019-02-14

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： Timo Koskela ,  Samuli Heikki Turtinen

    IPC: H04W74/08 ,  H04B7/06 ,  H04L5/00 ,  H04W24/08 ,  H04W74/00 ,  H04W74/0833 ,  H04W76/19

    CPC classification number: H04W74/0841 ,  H04B7/0695 ,  H04L5/0051 ,  H04W24/08 ,  H04W74/006 ,  H04W76/19

    Abstract: It is provided a method, comprising checking if a contention based random access is to be performed for a reason different from a beam failure recovery; monitoring if a received first reference signal has a received power above a set power threshold and/or a received quality above a set quality threshold; checking if a reception device is configured to receive a downlink control signal on a first beam corresponding to the first reference signal; instructing a transmission device to transmit a preamble of the contention based random access on the first beam if the contention based random access is to be performed for the reason, the received first reference signal has the received power above the set power threshold and/or the received quality above the set quality threshold, and the reception device is configured to receive the downlink control signal on the first beam.

    Facilitating efficient multi-beam beam recovery
    36.
    发明授权
    Facilitating efficient multi-beam beam recovery 有权

    公开(公告)号：US11923945B2

    公开(公告)日：2024-03-05

    申请号：US17272797

    申请日：2019-09-04

    Applicant: Nokia Technologies Oy

    Inventor： Timo Koskela ,  Jorma Kaikkonen ,  Sami-Jukka Hakola ,  Samuli Turtinen ,  Juha Karjalainen ,  Mihai Enescu

    IPC: H04B7/06 ,  H04B17/309 ,  H04W24/02 ,  H04W24/08 ,  H04B7/0413

    CPC classification number: H04B7/0695 ,  H04B17/309 ,  H04W24/02 ,  H04W24/08 ,  H04B7/0413

    Abstract: A method includes determining whether a downlink beam signal is being received from a base station (502); when the downlink beam signal is being received from the base station, determining whether a measurable property of the downlink beam signal does not meet a preselected threshold (504); when the downlink beam signal is not being received from the base station or when the measurable property of the downlink beam signal does not meet the preselected threshold, transmitting a message to the base station indicating that at least one uplink beam corresponding to the downlink beam has failed (506); and receiving a reply message from the base station with information required to determine a new uplink beam (508). An alternative method includes determining whether at least one uplink beam signal is being received from a user equipment (602); determining whether a measurable property of the at least one uplink beam signal does not meet a preselected threshold, when the at least one uplink beam signal is being received from the user equipment (604); and transmitting a message to the user equipment to initiate uplink beam recovery, when at least one uplink beam signal is not being received from the user equipment or when the measurable property of the at least one uplink beam signal does not meet the preselected threshold (606).

    Transmission opportunities
    38.
    发明授权
    Transmission opportunities 有权

    公开(公告)号：US11838946B2

    公开(公告)日：2023-12-05

    申请号：US17276539

    申请日：2018-09-28

    Applicant: Nokia Technologies Oy

    Inventor： Sami Hakola ,  Esa Tiirola ,  Kari Hooli ,  Timo Koskela

    IPC: H04W74/08 ,  H04W74/00

    CPC classification number: H04W74/0808 ,  H04W74/006

    Abstract: A method including configuring a first radio beam pair and at least a second radio beam pair to a communication connection, wherein the first radio beam pair includes a first transmission radio beam having a first transmission direction and the second radio beam pair including a second transmission radio beam having a second transmission direction different from the first transmission direction; triggering channel contention to transmit at least one message from the apparatus and performing radio channel sensing for both the first transmission radio beam and the second transmission radio beam during the channel contention; acquiring a transmission opportunity in response to detecting that a radio channel is available for at least one of the first transmission radio beam and the second transmission radio beam; and causing transmission of the at least one message during the transmission opportunity.

    Higher-layer beam management
    40.
    发明授权
    Higher-layer beam management 有权

    公开(公告)号：US11728871B2

    公开(公告)日：2023-08-15

    申请号：US16946706

    申请日：2018-01-22

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： Samuli Heikki Turtinen ,  Timo Koskela

    IPC: H04B7/06 ,  H04W76/19 ,  H04W76/18 ,  H04W76/28 ,  H04B7/08 ,  H04W24/08

    CPC classification number: H04B7/0695 ,  H04B7/088 ,  H04W24/08 ,  H04W76/18 ,  H04W76/19 ,  H04W76/28

    Abstract: There are provided measures for enabling/realizing higher-layer beam management, e.g. beam failure detection or beam candidate detection in a higher layer such as a MAC entity. Such measures exemplarily comprise that a beam management timer is started when a (first) beam management instance indication from a lower layer is obtained, beam management is executed, wherein a beam management instance counter is incremented whenever a beam management instance indication from the lower layer is obtained and a beam management event is detected when the beam management instance counter reaches a beam management instance threshold before expiry of the beam management timer, and the beam management instance counter is reset upon expiry of the beam management timer.

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