RRC reconfigurations during conditional handover

    公开(公告)号:US12284565B2

    公开(公告)日:2025-04-22

    申请号:US17621404

    申请日:2020-06-29

    Abstract: It is provided a method comprising: checking if an indication indicates that a target cell is configured to store concurrently first and second configurations of a terminal, wherein the first configuration is based on a first conditional handover request, and the second configuration data set is based on a second conditional handover request; monitoring if the source cell intends performing a radio reconfiguration of the terminal after the source cell configured the terminal for the first conditional handover; canceling the first conditional handover if the source cell intends performing the radio reconfiguration and the indication does not indicate the concurrently storing; instructing the source cell to request the second conditional handover from the target cell if the source cell intends performing the radio reconfiguration and the indication indicates the concurrently storing.

    Synchronization signaling block compatible interference coordination patterns to reduce interference in wireless networks

    公开(公告)号:US12267260B2

    公开(公告)日:2025-04-01

    申请号:US17625169

    申请日:2019-07-15

    Abstract: According to an example embodiment, a method may include determining, by a first base station associated with a first cell based on a synchronization signal block (SSB) configuration indicating one or more resources on which a synchronization signal block (SSB) may be transmitted by a second cell, one or more interference protected resources on which the first cell will reduce interference towards the second cell; and sending, by the first base station associated with the first cell to a second base station associated with the second cell, information identifying the one or more interference protected resources on which the first cell will reduce interference towards the second cell.

    Two-step addition of a primary-secondary cell, PSCell, in a multi-connected handover

    公开(公告)号:US11470517B2

    公开(公告)日:2022-10-11

    申请号:US15734956

    申请日:2018-06-12

    Abstract: A PCell for a UE participates in a first phase to add a PSCell to a set of cells including the PCell to be used by the UE for a MCHO, comprising determining that the UE is to participate in the MCHO, and sending indications of at least resources for selected ones of multiple candidate cells toward the UE for use for the MCHO. The PCell participates in a second phase to add the PSCell to the set, comprising determining by the PCell which of the selected multiple cells has been accessed by the UE as the PSCell. The PCell participates in a swap from being the PSCell for the UE to becoming a current PSCell for the UE, wherein the PSCell is swapped from the PSCell to being a current PCell for the UE. The current PSCell participates in a release of a connection to the UE.

    Conditional handover
    7.
    发明授权

    公开(公告)号:US11412424B2

    公开(公告)日:2022-08-09

    申请号:US15733496

    申请日:2018-02-14

    Abstract: An apparatus suitable for at least to: receive, from a serving access node, a random access update precondition and a configuration with regard to a conditional handover, wherein the configuration indicates at least one handover candidate cell; carry out measurements according to the configuration, and if the random access update precondition is fulfilled, transmit a message to the serving access node, the message comprising information obtained by the measurements and indicating at least one beam of at least one handover candidate cell and/or at least one handover candidate cell that caused the random access update precondition being fulfilled for obtaining a random access resource configuration for carrying out the conditional handover.

    Mobility robustness and handling for enhanced handover

    公开(公告)号:US11950150B2

    公开(公告)日:2024-04-02

    申请号:US17309158

    申请日:2018-11-02

    CPC classification number: H04W36/00837 H04W36/0058 H04W36/0079 H04W60/06

    Abstract: A source network apparatus (10) which provides access for a user equipment (30) to a communication network transmits (S102) a handover command to the user equipment (30), the handover command indicating a target network apparatus (20) for providing access for the user equipment (30) to the communication network, and a detach condition on when the user equipment (30) is to detach from the source network apparatus (10) after having accessed the target network apparatus (20) (S204) and received user plane data packets from the target network apparatus (20) (S205), wherein the source network apparatus (10) continues exchanging user plane data packets with the user equipment (30) (S101, S103) until the user equipment (30) detaches (S306) from the source network apparatus (10).

    Enhancement to RACH procedure
    9.
    发明授权

    公开(公告)号:US11864242B2

    公开(公告)日:2024-01-02

    申请号:US17634145

    申请日:2019-08-14

    CPC classification number: H04W74/0841 H04W56/001 H04W74/04 H04W74/0866

    Abstract: An example embodiment relates to Random Access Channel, RACH, procedure, for example in the New Radio, NR. Random access procedures may be of two types, contention based CBRA and contention free, CFRA. A client device may only perform CBRA fallback when none of the reference signal received strengths, RSRPs, of the synchronization signal blocks, SSBs, which is associated with the CFRA resources is above a predefined threshold, T1. All SSBs and CSI-RS with associated CFRA resources may be below the threshold. Then, the client device may select an SSB or CSI-RS according to a predefined rule and perform CFRA when CFRA resources are associated. Devices, methods and computer programs are disclosed accordingly.

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