公开(公告)号：US20210105657A1

公开(公告)日：2021-04-08

申请号：US17124650

申请日：2020-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxing Hu ,  Hongping Zhang

IPC: H04W28/02 ,  H04W28/24 ,  H04W76/11 ,  H04W76/12 ,  H04L29/08 ,  H04W80/02

Abstract: Embodiments of this patent application provide a data transmission method and an apparatus for determining, by a core network (CN) device, a length of a quality of service flow identifier (QFI) used when a protocol data unit (PDU) session is established or modified for a terminal device; and sending, by the CN device, a first message to a radio access network (RAN) device, where the first message includes length information of at least one QFI. After receiving the first message from the core network CN device, the access network RAN sends a second message to the terminal device, where the second message includes the length information of the at least one QFI.

公开(公告)号：US10524234B2

公开(公告)日：2019-12-31

申请号：US15869913

申请日：2018-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kaijie Zhou ,  Tianle Deng ,  Xinzheng Wang ,  Xingxing Hu

IPC: H04W72/04 ,  H04W48/16 ,  H04L27/26 ,  H04W56/00

Abstract: The present disclosure provides an uplink data packet transmission method. The method includes: determining, by a terminal device, a CP length of a first uplink data frame; if the terminal device is in a state of out of uplink synchronization with a base station and in an RRC connected state, or is in an RRC idle state, generating the first uplink data frame for an uplink data packet according to the CP length and sending the first uplink data frame to the base station. The CP length is greater than a CP length of an uplink data frame sent by a terminal device that is in a state of uplink synchronization and in an RRC connected state. Therefore, signaling procedures such as random access and uplink synchronization can be omitted, so that the terminal device can directly send the uplink data packet by performing signaling exchange once.