公开(公告)号：US12022554B2

公开(公告)日：2024-06-25

申请号：US16755489

申请日：2018-10-12

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Hans Bertil Rönneke ,  Paul Schliwa-Bertling

IPC: H04W76/27 ,  H04W8/02 ,  H04W68/00

CPC classification number: H04W76/27 ,  H04W8/02 ,  H04W68/005

Abstract: Embodiments herein relate to a method for providing state information regarding a user equipment, UE, performed by a radio access node, RAN, and an Access and Mobility Management Function, AMF, respectively. Embodiments here in relate also to a RAN and an AMF configured to perform a method for providing state information regarding a UE.

公开(公告)号：US20240187843A1

公开(公告)日：2024-06-06

申请号：US18285354

申请日：2022-03-31

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Mohammed Yazid Lyazidi ,  Liwei Qiu ,  Tuomas Tirronen ,  Qian Chen ,  Paul Schliwa-Bertling ,  Andreas Höglund

IPC: H04W8/24

CPC classification number: H04W8/24

Abstract: Techniques for handling wireless devices with reduced capabilities, or “RedCap” devices. An example method, performed by a core network node in a wireless communication network having a radio access network and a core network, comprises the step of receiving (32), for a wireless device operating in the radio access network, an indication that the wireless device is a reduced capability device. The method further comprises controlling (34) access to core network services by the wireless device and/or controlling session management for the wireless device, based on the indication.

公开(公告)号：US11968618B2

公开(公告)日：2024-04-23

申请号：US14915340

申请日：2013-09-27

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yong Yang ,  Qian Chen ,  Peter Hedman ,  Tony Olsson

IPC: H04W52/02 ,  H04W60/04 ,  H04W76/18 ,  H04W76/28 ,  H04W92/24

CPC classification number: H04W52/0216 ,  H04W52/0229 ,  H04W60/04 ,  H04W76/18 ,  H04W76/28 ,  H04W92/24 ,  Y02D30/70

Abstract: The invention relates to methods and device for detecting when a mobile terminal is in a state where it is incapable of replying to a message. In a first aspect of the present invention, it is provided a method of detecting, at a mobility node in a communications network, a state where a mobile terminal is incapable of replying to a message. The method comprises receiving the message from a gateway node, and determining whether the mobile terminal is incapable of replying to the message. Further, the method comprises sending a response to the gateway node indicating that the mobile terminal is not yet capable to reply to the message.

公开(公告)号：US11937326B2

公开(公告)日：2024-03-19

申请号：US17277653

申请日：2019-09-24

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Hans Bertil Rönneke ,  Qian Chen ,  Mikael Wass ,  Paul Schliwa-Bertling

IPC: H04W76/27 ,  H04W76/30

CPC classification number: H04W76/27 ,  H04W76/30

Abstract: Disclosed herein is a method for operating a radio access network (RAN) node of a wireless communication network. The method comprises: receiving a connection resume request message from a wireless terminal at the RAN node instructing the RAN node to establish a connection with the wireless terminal; providing release information for the wireless terminal at the RAN node; determining a state of a reachability request parameter at the RAN node; receiving uplink data from the wireless terminal at the RAN node, wherein the uplink data is associated with the connection resume request message; and transmitting a connection release message to the wireless terminal after receiving the uplink data responsive to the release information for the wireless terminal and determining the state of a reachability request parameter at the RAN node, wherein responsive to the state of the reachability request parameter at the RAN node having a first state, instructing the RAN node to not immediately transmit a connection release message to release and/or suspend the connection with the wireless terminal.

公开(公告)号：US11849364B2

公开(公告)日：2023-12-19

申请号：US17821838

申请日：2022-08-24

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Stefan Rommer ,  Jan Backman ,  Qian Chen ,  Göran Hall ,  Åsa Larsen

IPC: H04W36/14 ,  H04W8/08 ,  H04W36/00

CPC classification number: H04W36/14 ,  H04W8/08 ,  H04W36/0022 ,  H04W36/0033

Abstract: An Access and Mobility Management Function (AMF) adapted for taking part in handover from a 5G system (5GS) to an Evolved Packet System (EPS).

公开(公告)号：US20230337069A1

公开(公告)日：2023-10-19

申请号：US18027140

申请日：2021-09-21

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Nianshan Shi ,  Paul Schliwa-Bertling ,  Qian Chen

IPC: H04W36/00

CPC classification number: H04W36/0044 ,  H04W36/0072

Abstract: Methods supporting a Quality of Service (QoS) update during a Handover (HO) procedure are disclosed herein. More specifically, methods performed by a Radio Access Network (RAN) node and a Core Network (CN) node for supporting a QoS update during an HO are provided. The methods disclosed herein can facilitate flexible New Generation (NG)-RAN (NG-RAN) deployment with a mixture of NG-RAN nodes capable or incapable of supporting additional parameters in an HO procedure. The methods also make it possible to provide smooth NG-RAN software updates between different software releases.

公开(公告)号：US11758603B2

公开(公告)日：2023-09-12

申请号：US17577092

申请日：2022-01-17

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Peter Ramle ,  Qian Chen ,  Peter Hedman ,  Josefin Karlsson ,  Lasse Olsson ,  Stefan Rommer ,  Mikael Wass

IPC: H04W8/08 ,  H04W76/15 ,  H04W76/25

CPC classification number: H04W76/15 ,  H04W76/25

Abstract: Embodiments here in relate to methods for message handling performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE. Particularly, embodiments herein relate to methods for handling service requests performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE.

公开(公告)号：US11659462B2

公开(公告)日：2023-05-23

申请号：US16960430

申请日：2018-01-08

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Stefan Rommer ,  Qian Chen ,  Patrik Dannebro ,  Åsa Larsen

IPC: H04W36/12 ,  H04W76/36 ,  H04W48/18 ,  H04W88/14 ,  H04W84/04

CPC classification number: H04W36/12 ,  H04W48/18 ,  H04W76/36 ,  H04W88/14 ,  H04W84/042

Abstract: Disclosed is a method and access management entity for selecting a session management (SM) entity for serving a wireless communication device (WCD) in a core network that comprises an access management entity serving the WCD and an anchor SM entity that controls a first user plane entity that handles a data session associated with the WCD in a first domain, and a second SM entity for controlling a second user plane entity in a second domain of the core network. The method is performed by the access management entity and comprises selecting—based on WCD information and SM domain information—the second SM entity as an additional intermediate SM entity to control a user plane entity in the second domain for handling the data session in the second domain; requesting the second SM entity to act as the additional intermediate SM; and receiving a session response message.

公开(公告)号：US11622318B2

公开(公告)日：2023-04-04

申请号：US16980824

申请日：2019-04-04

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Stefan Rommer ,  Qian Chen

IPC: H04W48/16 ,  H04W80/10

Abstract: A method to operate a Network Function, Repository Function, NRF, to manage NF profiles of Session Management Functions (SMFs) in a communication system is provided that is configured to communicate with other network functions of the communications system through a network interface. The NRF receives NF profiles for the SMFs, wherein at least some of the NF profiles each include both a SMF identifier and a service area information for a respective one of the SMFs. After receiving the NF profiles, the NRF stores the SMF identifiers and the service area information of the NF profiles in a repository in memory. The NRF may also receive a NF discovery request for discovering SMFs. After receiving the NF discovery request, the NRF may retrieve from the repository at least one of the NF profiles respectively for at least one SMF based on content of the NF discovery request. The NRF communicates a NF discovery response containing the SMF identifier and the service area information of the at least one SMF.

公开(公告)号：US20220322080A1

公开(公告)日：2022-10-06

申请号：US17620587

申请日：2020-06-12

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Peter Hedman ,  Vlasios Tsiatsis ,  Monica Wifvesson ,  Qian Chen ,  Noamen Ben Henda ,  Ivo Sedlacek

IPC: H04W12/03 ,  H04W36/00 ,  H04W12/041 ,  H04W12/106

Abstract: The AMF re-allocation procedure for an Initiating AMF that has reroute capability via an Access Network (AN) is optimized in scenarios where a wireless device, such as a User Equipment (UE), already shares a 5G security context with-in a Last Serving AMF that is different from the Initiating AMF, and where the Initiating AMF and the Last Serving AMF can communicate with each other via an interface.