公开(公告)号：US20240414600A1

公开(公告)日：2024-12-12

申请号：US18696445

申请日：2022-09-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Yazid Lyazidi ,  Qian Chen ,  Emre Yavuz ,  Paul Schliwa-Bertling ,  Tuomas Tirronen

IPC: H04W36/00

Abstract: Systems and methods are disclosed for signaling Reduced Capability (RedCap) wireless communication device (WCD) capability during inter-Radio Access Technology (RAT) handover. In one embodiment, a method performed by a target network node for inter-RAT handover of a WCD from a source network node of a first RAT to the target network node of a second RAT comprises receiving, at the target network node, a message in association with preparation or execution of a handover of a WCD from the source network node of the first RAT to the target network node of the second RAT, the message comprising information about one or more capabilities of the WCD. The method further comprises determining that the WCD is a RedCap WCD based on the information about the one or more capabilities of the WCD and sending an indication that the WCD is a RedCap WCD to a core network node.

公开(公告)号：US12075305B2

公开(公告)日：2024-08-27

申请号：US18112865

申请日：2023-02-22

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Juying Gan ,  Stefan Rommer ,  Ann-Christine Sander ,  Paul Schliwa-Bertling

IPC: H04W36/00 ,  H04W8/08 ,  H04W36/32 ,  H04W48/16

CPC classification number: H04W36/32 ,  H04W8/08 ,  H04W36/0022 ,  H04W48/16

Abstract: System comprising a mobility management entity, MME, a first Radio Access node, RAN (eNB) offering Long Term Evolution, LTE, access, and a second radio access node, RAN (gNB) offering New Radio, NR, access; a user entity, UE, supporting both Long Term Evolution, LTE, and New Radio, NR, Radio Access Technology, RAT.

公开(公告)号：US11991603B2

公开(公告)日：2024-05-21

申请号：US17420764

申请日：2020-01-09

Applicant: Telefonaktiebolaget LM Ericsson (PUBL)

Inventor： Juying Gan ,  Qian Chen ,  Stefan Rommer

IPC: H04W76/12 ,  H04M15/00 ,  H04W4/24 ,  H04W28/02

CPC classification number: H04W4/24 ,  H04M15/66 ,  H04M15/8016 ,  H04M15/8038 ,  H04M15/8228 ,  H04W28/0268

Abstract: Methods and apparatuses are disclosed for facilitating roaming of terminal device. According to an embodiment, a session management node operable in a home network receives, from another session management node operable in a visiting network, a quality of service (QoS) policy per a roaming agreement between the visiting network and the home network during establishment of a protocol data unit (PDU) session for a terminal device. The session management node retrieves, from a subscriber management node, subscribed QoS parameters of the terminal device. The session management node obtains a result that is generated based on the QoS policy per the roaming agreement and the subscribed QoS parameters of the terminal device.

公开(公告)号：US11917073B2

公开(公告)日：2024-02-27

申请号：US17706774

申请日：2022-03-29

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Vesa Torvinen ,  Noamen Ben Henda ,  Qian Chen ,  Vesa Lehtovirta ,  Mats Näslund ,  Karl Norrman ,  Gang Ren ,  Mikael Wass ,  Monica Wifvesson

IPC: H04L9/32 ,  H04L9/06 ,  H04L9/08 ,  H04W12/041 ,  H04W12/106 ,  G16Y40/50 ,  G16Y10/75

CPC classification number: H04L9/3242 ,  H04L9/0618 ,  H04L9/0869 ,  H04W12/041 ,  H04W12/106 ,  G16Y10/75 ,  G16Y40/50 ,  H04L2209/04

Abstract: A message authentication code, for a message transmitted and received over a communications network, is formed by applying inputs to an integrity algorithm acting on the message. The inputs comprise: an integrity key; a value indicating a transfer direction; and a frame-dependent integrity input, wherein the frame-dependent integrity input is a frame-dependent modulo count value that also depends on a random value and on a frame-specific sequence number.

公开(公告)号：US20230421641A1

公开(公告)日：2023-12-28

申请号：US18335444

申请日：2023-06-15

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Hans Bertil Rönneke ,  Qian Chen ,  Stefan Rommer

IPC: H04L67/141 ,  H04W76/10 ,  H04L12/46

CPC classification number: H04L67/141 ,  H04L12/4633 ,  H04W76/10

Abstract: Methods are provided to operate an SMF node. A request to create a session for a wireless device is received. A communication establishment request is transmitted to an NEF node responsive to receiving the request to create the session for the wireless device, wherein the communication establishment request includes UPF node information for a tunnel between a UPF node and the NEF node to be used for the session for the wireless device. A communication establishment response is received from the NEF node, wherein the communication establishment response includes NEF node information for the tunnel between the UPF node and the NEF node to be used for the session for the wireless device. A tunnel information update is transmitted to the UPF node after receiving the communication establishment response, wherein the tunnel information update includes the NEF node information for the tunnel between the UPF node and the NEF node.

公开(公告)号：US11792697B2

公开(公告)日：2023-10-17

申请号：US17747370

申请日：2022-05-18

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Yong Yang

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

CPC classification number: H04W36/0033 ,  H04W8/02 ,  H04W8/12 ,  H04W8/26 ,  H04W36/0072 ,  H04W48/18

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：US20230284311A1

公开(公告)日：2023-09-07

申请号：US18198046

申请日：2023-05-16

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Juying Gan

IPC: H04W76/18

CPC classification number: H04W76/18 ,  H04W84/042

Abstract: The present disclosure proposes a method of an endpoint of a user plane path between an access network and a core network in a telecommunication network, comprising: detecting whether a failure exists on the user plane path or not; and notifying a node in the core network of the failure in order for the node to handle the failure, upon detecting the failure. With this method, the failure can be handled timely, thus minimizing the service interruption.

公开(公告)号：US11659611B2

公开(公告)日：2023-05-23

申请号：US16976871

申请日：2019-03-26

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Qian Chen ,  Juying Gan

IPC: H04W76/18 ,  H04W84/04 ,  H04W92/04 ,  H04W92/24

CPC classification number: H04W76/18 ,  H04W84/042 ,  H04W92/045 ,  H04W92/24

Abstract: The present disclosure proposes a method of an end-point of a user plane path between an access network and a core network in a telecommunication network, comprising: detecting whether a failure exists on the user plane path or not; and notifying a node in the core network of the failure in order for the node to handle the failure, upon detecting the failure. With this method, the failure can be handled timely, thus minimizing the service interruption.

公开(公告)号：US20230156653A1

公开(公告)日：2023-05-18

申请号：US17917023

申请日：2021-04-06

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Mikael Wass ,  Kaj Johansson ,  Qian Chen

IPC: H04W60/04 ,  H04W76/30

CPC classification number: H04W60/04 ,  H04W76/30

Abstract: Disclosed herein is a method performed by a wireless communication device, the method comprising: receiving, from a network node, a configuration update command comprising an indication as to whether the wireless communication device is to maintain an existing non-access stratum, NAS, connection; and performing one or more actions in accordance with the configuration update command.

公开(公告)号：US11641567B2

公开(公告)日：2023-05-02

申请号：US17384949

申请日：2021-07-26

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.