公开(公告)号：US20220385589A1

公开(公告)日：2022-12-01

申请号：US17886008

申请日：2022-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Caixia QI ,  Han ZHOU ,  Hancheng LI

IPC: H04L47/34 ,  H04L1/16 ,  H04L12/46 ,  H04W28/06

Abstract: A data transmission method and apparatus are provided. One example method involves establishing two tunnels between an access network device and a user plane function network element, where the two tunnels may be tunnels used for downlink data transmission or tunnels used for uplink data transmission. When communicating with the user plane function network element, the access network device may transmit two data packets. In this way, when one data packet is lost, the receive end may further receive the other data packet.

公开(公告)号：US20210112127A1

公开(公告)日：2021-04-15

申请号：US17132243

申请日：2020-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qianghua ZHU ,  Hancheng LI ,  Zaifeng ZONG ,  Fenqin ZHU ,  Wenfu WU

IPC: H04L29/08 ,  H04W76/12

Abstract: Example communication methods and apparatus are described. One example method includes determining a first encapsulation identifier corresponding to an Ethernet session by a control plane network element and sending the first encapsulation identifier corresponding to the Ethernet session to a user plane network element, where the first encapsulation identifier is used to instruct the user plane network element to process a data packet corresponding to the Ethernet session based on the first encapsulation identifier. The terminal device determines the first encapsulation identifier corresponding to the Ethernet session and encapsulates an uplink data packet based on the first encapsulation identifier, where the uplink data packet is a data packet triggered by an application program bound to the Ethernet session. The encapsulated data packet is mapped to the Ethernet session corresponding to the first encapsulation identifier for transmission based on the first encapsulation identifier.