公开(公告)号：US20210136582A1

公开(公告)日：2021-05-06

申请号：US17257106

申请日：2019-06-28

Applicant: Nokia Solutions And Networks Oy

Inventor： Jennifer LIU

IPC: H04W12/08 ,  H04W12/06 ,  H04W12/0471 ,  H04W8/08 ,  H04W48/16 ,  H04W60/00

Abstract: An interworking function in a core network system, such as a 5G core network, attempts to establish a secure association with user equipment (UE) in an untrusted access network. When the secure association is not accepted by the 5G core network, the UE receives from the core network a response including a message type indicating that Non-3GPP access to the 5G core network is not allowed. Upon receiving the response message, the UE ends the session by sending a 5G-Stop message formatted in an Extensible Authentication Protocol (EAP) response. The EAP-Response/5G-Stop message includes a message-id field with a 5G Stop value.

公开(公告)号：US20190110182A1

公开(公告)日：2019-04-11

申请号：US16151599

申请日：2018-10-04

Applicant: Nokia Solutions and Networks Oy

Inventor： Jennifer LIU

IPC: H04W4/90 ,  H04W60/00 ,  H04W76/50 ,  H04L12/18 ,  H04W4/12

Abstract: A method, apparatus and computer program product are provided for performing a public warning system (PWS) function. In the context of a method, a warning message is received via a first interface. The warning message is provided by a cell broadcast entity. The method includes transforming the warning message. The method further includes causing the warning message, as transformed, to be transmitted via a second interface, different than the first interface, to an access and mobility management function (AMF) for transmission to a radio access network.

公开(公告)号：US20200092425A1

公开(公告)日：2020-03-19

申请号：US16494182

申请日：2017-03-15

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Hannu Petri HIETALAHTI ,  Jussi-Pekka KOSKINEN ,  Jennifer LIU

IPC: H04M15/00 ,  H04W48/02 ,  H04W48/16 ,  H04W48/18 ,  H04W60/04 ,  H04W76/18

Abstract: Various communication systems may benefit from improved network signaling or attachment. A method, in certain embodiments, may include receiving at a network node an initial attachment request message from a user equipment. The method may also include issuing a back-off timer when accepting the initial attachment request from the user equipment. The back-off timer may include a duration of time in which the user equipment is not allowed to reattach to a network. In addition, the method may include receiving at the network node another attachment request message from the user equipment. Further, the method may include determining whether the duration of the back-off timer has lapsed, and rejecting the another attachment request from the user equipment when the duration of time of the back-off timer has not lapsed.