公开(公告)号：US20220070701A1

公开(公告)日：2022-03-03

申请号：US17412438

申请日：2021-08-26

Applicant: Nokia Solutions and Networks Oy

Inventor： Anand BEDEKAR ,  Anna SILLANPAA

IPC: H04W24/08

Abstract: Apparatuses and methods in a communication system for identifying transient blockage are presented. Transmission to one or more RAN nodes of parameters for the one or more RAN node is controlled to detect occurrences of sharp channel degradation events in connections served by the node. Data is received from the one or more RAN nodes, the data being related to channel or transmission events related to detected sharp channel degradation in connections served by the node. Based on the received data, likelihood is determined that one or more RAN nodes have a high level of transient blockages.

公开(公告)号：US20220279621A1

公开(公告)日：2022-09-01

申请号：US17187123

申请日：2021-02-26

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Anna SILLANPAA

IPC: H04W76/50 ,  H04W48/18 ,  H04W4/90 ,  H04W76/11

Abstract: Certain example embodiments provide systems, methods, apparatuses, and computer program products for emergency operations (e.g., Internet protocol multimedia subsystem (IMS) emergency calls) network slice exchange between entities in mobile networks. For example, a network node (e.g., a core network node, such as an access and mobility management function (AMF)) may provide, to a radio access network (RAN) node, information that identifies network slice(s) to be used for emergency operation(s).

公开(公告)号：US20210368398A1

公开(公告)日：2021-11-25

申请号：US17396156

申请日：2021-08-06

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Anna SILLANPAA ,  Philippe GODIN

IPC: H04W36/00 ,  H04W36/32 ,  H04W60/04

Abstract: A first radio access network (RAN) accesses information indicating an availability status of an interface between an access and mobility management function (AMF) in a first wireless communication system and a mobility management entity (MME) in a second wireless communication system. The first RAN receives a trigger for a handover of a user equipment between the first RAN and a second RAN. The handover is selectively performed via the interface or a redirect via a network element shared by the first and second wireless communication systems based on the availability status. In some cases, the first RAN receive the information indicating the availability status prior to providing the request for the handover and stores the information in a database associated with the first RAN, which access the information from the database.