公开(公告)号：US20220116867A1

公开(公告)日：2022-04-14

申请号：US17423479

申请日：2019-01-16

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qiong SONG ,  Xiaoming LI ,  Lu WANG

IPC: H04W48/20 ,  H04W60/04 ,  H04W76/20

Abstract: A method for selection of a core network. The method which can be performed by a first network node comprises receiving a message for a terminal device from a second network node. The message can enable the first network node to determine a category of the terminal device. The method further comprises selecting a core network for the terminal device based at least in part on the category of the terminal device. The terminal device can be served by a dedicated core network selected for the terminal device adaptively, so that network configuration and resource efficiency can be improved.

公开(公告)号：US20240298193A1

公开(公告)日：2024-09-05

申请号：US18574400

申请日：2021-07-01

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yimin NIE ,  Xiaoming LI

IPC: H04W24/02 ,  H04L43/0805

CPC classification number: H04W24/02 ,  H04L43/0805

Abstract: There is provided a computer-implemented method for processing data items for use in training a machine learning model to identify a relationship between the data items. The data items correspond to one or more features of a telecommunications network. For each feature of the one or more features, the corresponding data items are organised into a sequence according to time to obtain at least one sequence of data items. A single sequence of data items having the at least one sequence of data items is encoded to obtain an encoded sequence of data items. The single sequence of data items is encoded with information indicative of a position of data items in the single sequence of data items. The encoded sequence of data items is for use in training the machine learning model to identify the relationship between the data items.

公开(公告)号：US20210321479A1

公开(公告)日：2021-10-14

申请号：US17264936

申请日：2018-09-07

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jinyin ZHU ,  Xiaoming LI ,  Zhansheng WEI

IPC: H04W76/19 ,  H04W8/24 ,  H04W52/02 ,  H04W48/16 ,  H04W76/28 ,  H04W68/00

Abstract: Methods and apparatuses are disclosed for network triggered service restoration (NTSR). According to an embodiment, a serving gateway (SGW) obtains, from a mobility management entity (MME), information capable of indicating whether to apply NTSR for a terminal device. In response to detecting a failure of the MME, the SGW determines whether to apply NTSR for the terminal device based on the obtained information.

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.

公开(公告)号：US20240323788A1

公开(公告)日：2024-09-26

申请号：US18271620

申请日：2021-11-29

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Lei XIA ,  Xiaoming LI ,  Xuemei ZHANG ,  Ce ZHANG ,  Nianshan SHI

IPC: H04W36/14

CPC classification number: H04W36/144

Abstract: Methods and apparatuses for handover between different radio access technologies (RATs) are disclosed. According to an embodiment, an access network node receives, from a mobility management entity (MME), information indicating that one or more bearers for a terminal device cannot be handed over to one or more RATs different than long term evolution (LTE). The access network node determines whether to perform a packet switched (PS) handover for the terminal device based on the information.

公开(公告)号：US20240195846A1

公开(公告)日：2024-06-13

申请号：US18555402

申请日：2022-04-13

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Wen ZHANG ,  Jinyin ZHU ,  Juying GAN ,  Yunjie LU ,  Qiong SONG ,  Xiaoming LI ,  Wu WANG

IPC: H04L65/1069

CPC classification number: H04L65/1069

Abstract: A method and apparatus for session management function reselection. A method performed by an access and mobility function includes selecting a second session management function (SMF) to serve a session of a user equipment (UE). The session of the UE is currently served by a first SMF and an access network. The method further includes sending a create session management context request comprising a reason of selecting the second SMF to serve the session of the UE to the second SMF. The reason indicates that the session of the UE is still served by the access network. The method further includes receiving a create session management context response comprising a session resource modify request from the second SMF. The session resource modify request includes access network tunnel information of the access network. The method further includes sending the session resource modify request to the access network.

公开(公告)号：US20210235518A1

公开(公告)日：2021-07-29

申请号：US17052715

申请日：2018-05-04

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Xiaoming LI ,  Hui GU ,  Qiong SONG

IPC: H04W76/11 ,  H04W72/04 ,  H04W60/04

Abstract: A method in a SCEF is provided. The method comprises receiving a message indicating that non-IP data is to be delivered to a UE. The method further comprises retrieving information associated with a MME serving the UE. The method further comprises transmitting, to the MME, a message triggering establishment of a connection between the SCEF and the MME for delivering the non-IP data. Other devices and methods for connection establishment between MME and SCEF are also provided.

公开(公告)号：US20210176598A1

公开(公告)日：2021-06-10

申请号：US16762891

申请日：2017-11-10

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Zhiqiang ZHAO ,  Zhiwei QU ,  Xiaoming LI

IPC: H04W4/02 ,  H04W8/02

Abstract: A method implemented by a network device for mobility management in a wireless communication network is provided. The network device is communicatively connected to at least a user equipment in the wireless communication network. The method comprises determining whether the user equipment is in a fast-moving state upon receipt of a tracking area update request from the user equipment. The method further comprises: in response to the user equipment being in the fast-moving state, configuring a tracking area identity list associated with the user equipment to include only a current tracking area identity associated with the user equipment, and paging the user equipment using the tracking area identity list. Accordingly, a network device for mobility management in a wireless communication network is also provided.

公开(公告)号：US20240205818A1

公开(公告)日：2024-06-20

申请号：US18592513

申请日：2024-02-29

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qiong SONG ,  Xiaoming LI ,  Lu WANG

IPC: H04W48/20 ,  H04W60/04 ,  H04W76/20

CPC classification number: H04W48/20 ,  H04W60/04 ,  H04W76/20

Abstract: A method for selection of a core network. The method which can be performed by a first network node comprises receiving a message for a terminal device from a second network node. The message can enable the first network node to determine a category of the terminal device. The method further comprises selecting a core network for the terminal device based at least in part on the category of the terminal device. The terminal device can be served by a dedicated core network selected for the terminal device adaptively, so that network configuration and resource efficiency can be improved.