公开(公告)号：US11382006B2

公开(公告)日：2022-07-05

申请号：US17254935

申请日：2019-06-13

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Yong Yang

IPC: H04W36/00 ,  H04W8/02 ,  H04W8/26 ,  H04W48/18 ,  H04W8/12

Abstract: A method for a target mobility management entity and a target mobility management entity for executing the method in a core network to communicate network function (NF) utilization information with a source mobility management entity during a change of mobility management entity are disclosed. The method comprises: receiving at least one old NF identifier (ID) from the source mobility management entity that corresponds to an old NF entity serving a user equipment (UE); determining to either use the at least one old NF ID or to use at least one new NF ID that corresponds to a new NF entity of a same NF type as the old NF entity; and communicating, to the source mobility management entity, information that indicates to the source mobility management entity whether the target mobility management entity uses the at least one old NF ID or uses the at least one new NF ID.

公开(公告)号：US20220132295A1

公开(公告)日：2022-04-28

申请号：US17430561

申请日：2019-10-17

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Hans Bertil Rönneke ,  Yong Yang

IPC: H04W8/18 ,  H04W76/12

Abstract: A method in a core network of a cellular communications system to enable Data over Non-Access Stratum, DoNAS, data delivery in a roaming scenario, the method comprising: sending from the V-SMF to a Home Session Management Function, H-SMF, a Packet Data Unit, PDU, session create request during PDU session establishment for DoNAS data delivery for a User Equipment, UE, in a roaming scenario; and receiving a response from the H-SMF. In embodiments of the method the PDU session create request comprises an indication that a control plane can be used for data delivery.

公开(公告)号：US20220022089A1

公开(公告)日：2022-01-20

申请号：US17295325

申请日：2019-05-30

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Jinyin Zhu ,  Juying Gan ,  Qian Chen ,  Peter Hedman

IPC: H04W28/02 ,  H04W28/10 ,  H04W56/00

Abstract: A method of operation of a SMF in a 5GC, for synchronizing the GBR QoS flows with the UE is provided. The method comprises initiating deactivation of one or more GBR/non-GBR (not associated to a default QoS Rule), QoS flows of a PDU session in the 5GC and in the UE and upon determining that a response to the deactivation is not received from the UE, deferring, by the SMF, the deactivation of the one or more GBR/non-GBR QoS flows with the UE and marking the GBR/Non-GBR QoS flows as to be synchronized when either UP reactivation is received or UE reachability notification is received or upon a synchronization timer set by the SMF has expired. The GBR/non-GBR QoS Flows may also be locally deactivated at the UE, in which case a method in the UE to synchronize the GBR/non-GBR QoS flows with the 5GC is provided.

公开(公告)号：US20210377729A1

公开(公告)日：2021-12-02

申请号：US17403214

申请日：2021-08-16

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Christine Jost ,  Noamen Ben Henda ,  Qian Chen ,  Peter Hedman ,  Lars-Bertil Olsson ,  Vesa Torvinen

IPC: H04W12/04 ,  H04W76/25 ,  H04W8/08 ,  H04W60/00 ,  H04W12/03 ,  H04W12/104 ,  H04W12/108

Abstract: A method for operating a User Equipment (UE) is disclosed, wherein the UE is served by a source first network function in a first network and requires to register with a target second network function in a second network. The method comprises generating a registration request with integrity protection for at least a part of the registration request, and sending an integrity protected part of the registration request to the source first network function via the target second network function.

公开(公告)号：US11159934B2

公开(公告)日：2021-10-26

申请号：US16621738

申请日：2018-06-21

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Peter Hedman ,  Josefin Karlsson ,  Peter Ramle ,  Stefan Rommer

IPC: H04W8/14 ,  H04W48/12 ,  H04W48/16 ,  H04W60/04

Abstract: An Access and Mobility Management Function (AMF) provides the UE with a UE Reporting Area, URA. The URA is a sub-area of the Reporting Area, RA and is defined by a set of cells, gNBs or traffic area identifiers, TAIs, or a combination of them. The UE sends a notification to the AMF when it crosses the border of URA. The AMF determines the URA by retrieving or determining a RA for the UE, retrieving a PRA of the UE, and determining the URA in dependence on the RA and PRA.

公开(公告)号：US11109198B2

公开(公告)日：2021-08-31

申请号：US16774619

申请日：2020-01-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yong Yang ,  Qian Chen

IPC: H04W4/14 ,  H04W76/28 ,  H04W68/00 ,  H04W4/70 ,  H04W88/02 ,  H04W88/14 ,  H04W88/18

Abstract: The invention relates to mobility management nodes and methods of the mobility management nodes of enabling delivery of a Mobile Terminating, (MT) Short Message (SM) to a mobile terminal.
In a first aspect of the invention, a method of a mobility management node is provided for enabling delivery of a Mobile Terminating, (MT) Short Message (SM) to a mobile terminal which currently is in extended idle mode discontinuous reception, eDRX, mode. The method comprises receiving an indication from a Short Message Service Gateway Mobile Switching Centre (SMS-GMSC) that the SM is to be delivered, receiving a notification that the mobile terminal has exited an extended idle Discontinuous Reception (eDRX) mode before a paging occasion has occurred, and submitting, in response to the notification, a message indicating to the SMS-GMSC that the mobile terminal is available for delivery of the SM.

公开(公告)号：US11102649B2

公开(公告)日：2021-08-24

申请号：US16481761

申请日：2018-01-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Christine Jost ,  Noamen Ben Henda ,  Qian Chen ,  Peter Hedman ,  Lars-Bertil Olsson ,  Vesa Torvinen

IPC: H04W12/04 ,  H04W76/25 ,  H04W8/08 ,  H04W60/00 ,  H04W12/03 ,  H04W12/104 ,  H04W12/108 ,  H04W12/00 ,  H04W12/041

Abstract: A method for operating a User Equipment (UE) is disclosed, wherein the UE is served by a source first network function in a first network and requires to register with a target second network function in a second network. The method comprises generating a registration request with integrity protection for at least a part of the registration request (1200), and sending an integrity protected part of the registration request to the source first network function via the target second network function (1202). Also disclosed are methods of operating first and second network functions.

公开(公告)号：US20200344655A1

公开(公告)日：2020-10-29

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 ,  H04W88/14 ,  H04W48/18 ,  H04W76/36

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：US12231341B2

公开(公告)日：2025-02-18

申请号：US17635455

申请日：2020-08-10

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yong Yang ,  Yunjie Lu ,  Qian Chen ,  Erik Wikström ,  Juying Gan

IPC: H04L47/24 ,  H04L12/14 ,  H04L45/42 ,  H04L47/20

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for improved packet detection rule provision. A method performed by a first network entity comprises: transmitting packet detection information, PDI, to a second network entity, wherein the PDI indicates information on one or more traffic endpoints on which packets are to be detected.

公开(公告)号：US20250031265A1

公开(公告)日：2025-01-23

申请号：US18714543

申请日：2022-11-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Xiaoming LI ,  Qiong Song ,  Chuanxin Liu ,  Juying Gan ,  Qian Chen

IPC: H04W76/19 ,  H04W24/04

Abstract: Embodiments of the present disclosure provide methods and apparatuses for failure recovery. A method performed by a mobility management entity, comprising determining a failure occurs at a first session management entity. The method further comprises sending a first message to a terminal device, wherein the first message includes a Protocol Data Unit, PDU, session status information indicating that the first session management entity related PDU session is inactive.