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109 条记录 (耗时 0.037 秒)

    Emergency services handling
    1.
    发明授权
    Emergency services handling 有权

    公开(公告)号：US12127093B2

    公开(公告)日：2024-10-22

    申请号：US17130034

    申请日：2020-12-22

    申请人： BlackBerry Limited

    发明人： Jan Hendrik Lucas Bakker

    IPC分类号： H04W4/90 ,  H04W36/00 ,  H04W60/00

    CPC分类号： H04W4/90 ,  H04W36/0022 ,  H04W60/005

    摘要： In some examples, a user equipment (UE) is capable of dual registration with a first core network and a second core network. The UE receives a first indication during a first registration of the UE via a first access network with the first core network, determines based on the first indication that emergency services are not supported by the first core network, attempts a second registration via a second access network with the second core network, detects an emergency indication, and initiates a call in response to the emergency indication via a second access network different from the first access network.

    Preserving emergency call during failure to transfer
    8.
    发明授权
    Preserving emergency call during failure to transfer 有权

    公开(公告)号：US11343742B2

    公开(公告)日：2022-05-24

    申请号：US16882245

    申请日：2020-05-22

    申请人： BlackBerry Limited

    发明人： Jan Hendrik Lucas Bakker

    IPC分类号： H04W36/14 ,  H04W60/00 ,  H04W36/00 ,  H04W76/50 ,  H04W60/04 ,  H04W76/18 ,  H04W4/90

    摘要： A system and method in a user equipment (UE) for transferring an emergency session from a first network to a second network. The method includes transmitting a first registration request message to the second network; receiving a registration reject message from the second network; detecting the emergency session between the UE and the first network is ongoing; transmitting a second registration request message comprising an emergency registration request to the second network; and receiving a registration accept message for the emergency session.

    Emergency calls
    9.
    发明授权
    Emergency calls 有权

    公开(公告)号：US11116018B2

    公开(公告)日：2021-09-07

    申请号：US16907943

    申请日：2020-06-22

    申请人： BlackBerry Limited

    发明人： Jan Hendrik Lucas Bakker

    IPC分类号： H04M11/04 ,  H04W76/11 ,  H04W4/90 ,  H04W84/04

    摘要： In some examples, a device detects a calling identifier received as part of initiating a call matches an emergency identifier, the emergency identifier associated with information from which to derive a Uniform Resource Name (URN). The device detects that the device is attached to or registered a first network different from a second network, where the second network configured the emergency identifier. In response to detecting that the device is attached to or registered the first network different from the second network, the device includes a Session Initiation Protocol (SIP) Uniform Resource Identifier (URI) in a Session Initiation Protocol (SIP) INVITE message to be transmitted.