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
    24.
    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.

    Full uplink blanking to avoid RF impairments for devices with multiple connections

    公开(公告)号:US11240802B2

    公开(公告)日:2022-02-01

    申请号:US16781947

    申请日:2020-02-04

    Abstract: In accordance with an example embodiment of the present invention, a method comprising: receiving, by a user equipment, instructions based on a determination that a communication sent from the user equipment to at least one network comprising signaling to at least one network node over continuous time slots of at least one uplink connection would cause a problem with the communication; and based on the instructions, preventing by the user equipment the signaling over at least one particular time slot of the at least one uplink connection to overcome the problem, wherein the instructions are received in a recurring pattern indicating the at least one particular time slot.

    Communication system
    28.
    发明授权

    公开(公告)号:US11240735B2

    公开(公告)日:2022-02-01

    申请号:US16609610

    申请日:2017-05-04

    Inventor: Ahmad Awada

    Abstract: There is provided a method comprising: determining the occurrence of a change in System Information; determining whether or not the System Information was transmitted to a user equipment by at least one network apparatus during a time period immediately prior to determining said occurrence; and causing an indication of the occurrence of said change to be transmitted to the user equipment when it is determined that the System Information was transmitted to the user equipment within the time period.

    REDUCING HANDOVER INTERRUPTION WITH TWO TRANSMITTERS AND RECEIVERS

    公开(公告)号:US20210345196A1

    公开(公告)日:2021-11-04

    申请号:US17281098

    申请日:2019-10-10

    Abstract: A technique of performing a HO includes the source BS sending a HO resume message to the UE at the conclusion of a RACH access procedure that occurs in response to a HO command while a second TRX of the UE continues to exchange data packets with the source BS as if no HO command were issued. By continuing to exchange data with the source BS as if there were no HO command until the HO resume message reintroduces a RACH-less HO procedure, the interruption may be reduced to about 4 msec. At any point in time the UE handles only one protocol stack and only one security, which avoids the complexity of the advanced prior art methods.

Patent Agency Ranking