公开(公告)号：US11368990B2

公开(公告)日：2022-06-21

申请号：US16540855

申请日：2019-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongcui Li ,  Yan Li

IPC: H04W76/12 ,  H04W76/11 ,  H04W36/08 ,  H04W80/08

Abstract: This application provides a data transmission method and device. In a process in which a terminal device is handed over from a source access network device to a target access network device, the source access network device processes buffered packet data convergence protocol (PDCP) data, so that when a forwarding tunnel is a tunnel of a session granularity or a group granularity, the target access network device accurately forwards data in the handover process. The method includes: encapsulating, by a source access network device, indication information in an encapsulation header of PDCP data, where the indication information is used to indicate a radio bearer used for sending the PDCP data by a target access network device; and sending, by the source access network device to the target access network device, the PDCP data in which the indication information is encapsulated.

公开(公告)号：US11272440B2

公开(公告)日：2022-03-08

申请号：US16802199

申请日：2020-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Ni ,  Fang Yu ,  Yan Li ,  Xiaoqiang Qiao

IPC: H04W48/18 ,  H04W76/11 ,  H04L29/06 ,  H04W8/12 ,  H04W84/00 ,  H04W84/04

Abstract: A network slice selection method and apparatus are disclosed. The method includes: receiving, by a first SSF device of a VPLMN, a first service request message; obtaining, by the first SSF device, roaming information of UE according to the first service request message; selecting, by the first SSF device, a first network slice instance in the VPLMN for the UE based on the roaming information of the UE.

公开(公告)号：US11258708B2

公开(公告)日：2022-02-22

申请号：US16561163

申请日：2019-09-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiao Yang ,  Tingfang Tang ,  Yan Li

IPC: H04L12/745 ,  H04L12/721 ,  H04L45/748 ,  H04L45/00 ,  H04W80/10

Abstract: A communication method and a communications apparatus, where the method includes: assigning, by a control plane device, an Internet Protocol (IP) address to a user equipment; obtaining, by the control plane device using a routing policy network element, a routing rule corresponding to the IP address; and sending, by the control plane device, the routing rule and the IP address to the user equipment, where the routing rule is used by the user equipment to determine a source IP address when the user equipment initiates a service.

公开(公告)号：US11240639B2

公开(公告)日：2022-02-01

申请号：US16441014

申请日：2019-06-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoqiang Qiao ,  Yan Li

IPC: H04W4/08 ,  H04W8/18 ,  H04W8/20 ,  H04W28/08 ,  H04L29/08 ,  H04W88/14

Abstract: Embodiments of this application provide an information transmission method, a network element selector, and a controller. The information transmission method provided in the embodiments of this application includes: receiving, by an NES from an external network element, a first message including identification information of UE; determining, based on the identification information of the UE, a user group to which the UE belongs; determining a controller corresponding to the user group; and then sending the first message to the controller.

公开(公告)号：US20220014475A1

公开(公告)日：2022-01-13

申请号：US17485169

申请日：2021-09-24

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Haiyang Sun ,  Yan Li

IPC: H04L12/823 ,  H04W28/02 ,  H04L29/08 ,  H04L12/14

Abstract: A packet delay parameter obtaining method, apparatus, and system are provided. The method provides a session management network element determines whether a first QoS flow satisfying a parameter condition exists, where the first parameter indicates information corresponding to a PSA UPF transmitting the first QoS flow, the first parameter indicating information corresponding to a PSA UPF transmitting the first service flow. If no first QoS flow satisfying the parameter condition exists, a second QoS flow for the first service flow is established, and the session management network element sends a first message to an access network element, the first message including identification information of the second QoS flow and a packet delay parameter corresponding to the second QoS flow.

公开(公告)号：US11212226B2

公开(公告)日：2021-12-28

申请号：US16874074

申请日：2020-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiao Yang ,  Tingfang Tang ,  Yan Li ,  Yongcui Li

IPC: H04L12/741 ,  H04L12/28 ,  H04L12/947 ,  H04L29/12 ,  H04L29/08

Abstract: A data processing method includes obtaining, by a session management function (SMF) network element from an external network element, a media access control (MAC) address of a terminal device and an Internet Protocol (IP) address corresponding to the MAC address, and sending, by the SMF network element, the MAC address and the IP address to a first user plane function (UPF) network element, where the MAC address and the IP address are used to send an Address Resolution Protocol (ARP) message, and the ARP message includes the MAC address and the IP address.

公开(公告)号：US20210344641A1

公开(公告)日：2021-11-04

申请号：US17373390

申请日：2021-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiao YANG ,  Yan Li

IPC: H04L29/12 ,  H04L12/841

Abstract: A domain name access method and a device are described. As described herein, a domain name server (DNS) server performs resolution on a domain name requested by the terminal device. The DNS server may then send an internet protocol (IP) address of an application server obtained through the resolution and use condition information to the terminal device. With this, communication efficiency of the terminal device can be improved, and waste of transmission resources in a communications system is also avoided.

公开(公告)号：US11134436B2

公开(公告)日：2021-09-28

申请号：US16692428

申请日：2019-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiao Yang ,  Yan Li

IPC: H04W48/18 ,  H04W8/20 ,  H04W36/00 ,  H04W36/22 ,  H04W48/06 ,  H04W48/16

Abstract: Embodiments of this application provide a method for selecting an access network type, a device, and a system, to flexibly select an access network type. An example method includes: determining, by a policy control function PCF entity, that a network status of a first network does not meet a preset condition, where the first network is a network currently accessed by a terminal; and sending, by the PCF entity, an access network type corresponding to a second network to the terminal, where the access network type corresponding to the second network is used to instruct the terminal to redirect a session of the terminal to the second network, and the second network is a network other than the first network.

公开(公告)号：US20210274585A1

公开(公告)日：2021-09-02

申请号：US17323638

申请日：2021-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fang Yu ,  Hui Ni ,  Yan Li

IPC: H04W76/22 ,  H04W76/12 ,  H04W8/02 ,  H04L29/08 ,  H04W76/11

Abstract: A communication method, device, and medium are provided, the method including determining, by a terminal device, whether the terminal device supports at least one of a time sensitive networking (TSN) service, a packet data unit (PDU) session corresponding to a TSN service needs to be established, a currently established PDU session needs to carry a TSN stream, or an established PDU session needs to carry a TSN stream, and sending, by the terminal device, port information of the terminal device to a session management network element, where the port information of the terminal device includes a port identifier of the terminal device, and further includes information about a transmission delay between a port of the terminal device and an external neighbor node.

公开(公告)号：US11082893B2

公开(公告)日：2021-08-03

申请号：US16563346

申请日：2019-09-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fangyuan Zhu ,  Yan Li

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/08 ,  H04W36/32

Abstract: Embodiments of this application provide a session migration method and a device. The method includes: determining, by a source session management function entity, whether to update a session of a terminal device; and if the source session management function entity determines to update the session of the terminal device, retaining, by the source session management function entity, a context of a first session, and sending instruction information to a first device, where the instruction information is used to instruct the first device to trigger creation of a second session after the first device obtains to-be-sent data of the terminal device, the first session is a session created between the source session management function entity and the terminal device, the first device is the terminal device or a target mobility management function entity, and the second session is a session between a target session management function entity and the terminal device.