公开(公告)号：US20220141908A1

公开(公告)日：2022-05-05

申请号：US17414597

申请日：2019-12-06

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Toshiyuki TAMURA ,  Linghang FAN

IPC: H04W76/18 ,  H04W8/18

Abstract: The current disclosure proposes URLLC support indication exchange between the network nodes and URLLC support by the network indication in the Registration procedure so that a URLLC capable UE knows whether it could initiate URLLC type of PDU session establishment.

公开(公告)号：US20220086697A1

公开(公告)日：2022-03-17

申请号：US17414783

申请日：2019-12-13

Applicant: NEC Corporation

Inventor： Toshiyuki TAMURA ,  Linghang FAN ,  Iskren IANEV

IPC: H04W28/24

Abstract: The present disclosure is concerned with enhancements to the QoS notification control scheme. With a better understanding on why QoS target(s) cannot be fulfilled, the PCF/AF can take proper action based on the obtained QoS information and data.

公开(公告)号：US20210076306A1

公开(公告)日：2021-03-11

申请号：US16763419

申请日：2018-11-08

Applicant: NEC CORPORATION

Inventor： Toshiyuki TAMURA ,  Iskren IANEV

IPC: H04W48/12 ,  H04W48/02 ,  H04W8/20 ,  H04W8/24 ,  H04W76/27 ,  H04W74/08

Abstract: User equipment, UE, includes: a receiver configured to receive a parameter indicating whether the UE is restricted or authorized for transmission of user data in a message transmitted on Uplink Synchronization Channel, UL-SCH, from an access network node; and a hardware processor configured to process instructions to determine whether the transmission of the user data in the message is restricted or authorized based on the parameter.

公开(公告)号：US20200068470A1

公开(公告)日：2020-02-27

申请号：US16673224

申请日：2019-11-04

Applicant: NEC CORPORATION

Inventor： Kouhei GOTOU ,  Yannick LAIR ,  Iskren IANEV

IPC: H04W36/14 ,  H04W60/00

Abstract: A wireless terminal can communicate with a first network of first type and a second network of second different type. The wireless terminal performs a packet-domain attachment to the first network and initiates a ready timer indicating that the wireless terminal is in an attached state and has recently sent data to the first network. The wireless terminal initiates an inter-system change from the first network to the second network whereby the wireless terminal becomes registered to the second network. Advantageously the wireless terminal has means for rendering the ready timer ineffective when the inter-system change is performed. The network apparatus has means for initiating its own ready timer dependent on the attachment occurring, this ready timer also indicating that the wireless terminal is in an attached state and has recently sent data to the first network.

公开(公告)号：US20190394813A1

公开(公告)日：2019-12-26

申请号：US16561111

申请日：2019-09-05

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Yannick LAIR ,  Thomas DELSOL

IPC: H04W76/10 ,  H04W4/70 ,  H04W72/04

Abstract: The invention provides for a wireless communications terminal (502), and related system and method, for wirelessly communicating with a network (504, 506). The terminal (502) is arranged to transmit, as part of a wireless connection establishment procedure for forming a wireless connection between the terminal (502) and the network (504, 506), wireless-connection establishment signalling (510) including a small-data indicator to indicate to the network (504) that transmission of an amount of data below a threshold value is required from the terminal (502) by way of the wireless connection to the network (504, 506).

公开(公告)号：US20190007329A1

公开(公告)日：2019-01-03

申请号：US15755462

申请日：2017-02-06

Applicant: NEC Corporation

Inventor： Genadi VELEV ,  Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04L12/823 ,  H04L12/825

Abstract: The invention describes a solution for configuration of policy and other QoS parameters for the non-IP data transmission path over SCEF. Policy enforcement in UL and DL are proposed to avoid the excessive data transmission to/from IoT or M2M devices.

公开(公告)号：US20180352593A1

公开(公告)日：2018-12-06

申请号：US15755927

申请日：2017-02-06

Applicant: NEC CORPORATION

Inventor： Genadi VELEV ,  Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04W76/12 ,  H04L29/08 ,  H04W24/08

CPC classification number: H04W76/12 ,  H04W4/70

Abstract: The invention describes a method for dynamic switching between a control plane data transmission and user plane data transmission avoiding the Detach and consecutive re-attach procedure or TAU procedure. In particular the decision for switch between the different transmission schemes is based on various criteria like the size of the data packet or on total amount of data, etc.

公开(公告)号：US20180324761A1

公开(公告)日：2018-11-08

申请号：US15772900

申请日：2016-11-08

Applicant: NEC Corporation

Inventor： Genadi VELEV ,  Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04W72/04 ,  H04W48/18

CPC classification number: H04W72/04 ,  H04W8/06 ,  H04W8/18 ,  H04W48/18 ,  H04W84/00

Abstract: The invention describes a method for detecting an inability to serve a UE in the selected serving node due to mismatch between the UE's DCN-related indication and the UE's DCN-related subscription and/or the UE's capabilities and/or due to serving node congestion. The method allows to update the UE's DCN configuration information, so that the UE can be assigned to an appropriate DCN during the next RRC/NAS request procedure.

公开(公告)号：US20180249318A1

公开(公告)日：2018-08-30

申请号：US15755335

申请日：2016-10-05

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Genadi VELEV ,  Toshiyuki TAMURA ,  Andreas KUNZ

IPC: H04W8/06 ,  H04W76/14 ,  H04W76/27 ,  H04W28/02 ,  H04W48/18 ,  H04W76/30 ,  H04W60/00

CPC classification number: H04W8/065 ,  H04W4/70 ,  H04W28/0215 ,  H04W48/18 ,  H04W60/00 ,  H04W76/14 ,  H04W76/27 ,  H04W76/30

Abstract: The invention provides for a method of selecting a Dedicated Core Network (DCN) based on assisting indication by mobile terminals, and including the step of configuring the RAN Nodes of the mobile network with the DCN Types of the serving EPC Nodes so that the RAN Nodes can map the DCN selection assisting information from the connecting mobile terminals with the right dedicated EPC Node. This allows for the RAN Node to connect the mobile terminals with EPC Node of the mobile terminal's dedication at initial attach and then keep the mobile terminals on the same DCN. Thus, a re-routing of mobile terminals NAS message from one EPC Node to another EPC node is avoided. The invention also allows for a flexible and dynamic change of the EPC Nodes dedication based on operator's configuration and policy. Additionally, the invention allows for DCN access restriction control by broadcasting of the supported DCN Types by the RAN Node.

公开(公告)号：US20180167852A1

公开(公告)日：2018-06-14

申请号：US15893296

申请日：2018-02-09

Applicant: NEC CORPORATION

Inventor： Iskren IANEV ,  Yannick LAIR ,  Kouhei GOTOU

IPC: H04W36/00 ,  H04W88/06 ,  H04W76/15

CPC classification number: H04W36/0022 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/14 ,  H04W60/005 ,  H04W76/15 ,  H04W88/06

Abstract: A wireless terminal can communicate with two radio access networks (RAN) (304, 306) of different types. The wireless terminal can register simultaneously with a RAN of the first type and a RAN of the second type and can wirelessly connect to a RAN of either the first type or the second type in a connected state. The wireless terminal when registered with both a first RAN and a second RAN and when wirelessly connected to the first RAN in the connected state, receives a mobility signal via the first RAN indicating a RAN of the second type and, in response to receiving the mobility signal and in response to being so registered with the first RAN and second RAN, transmits an access trigger signal (417). The access trigger signal indicates that the wireless terminal is to be connected to the second RAN in the connected state.