公开(公告)号：US11711869B2

公开(公告)日：2023-07-25

申请号：US17230293

申请日：2021-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Li ,  Ngoc Dung Dao ,  Patrice Hede ,  Hang Zhang

IPC: H04W80/12 ,  H04M15/00 ,  H04W40/20 ,  H04W40/34 ,  H04W80/10

CPC classification number: H04W80/12 ,  H04M15/66 ,  H04W40/20 ,  H04W40/34 ,  H04W80/10

Abstract: An aspect of the disclosure provides for a method for user equipment (UE) internet protocol (IP) address management. The method includes sending by an application function (AF), a request to a policy control function (PCF), the request including information identifying traffic and an indication that a UE IP address associated with the traffic should be preserved. The method further includes sending by the PCF, to a session management function (SMF) being responsible for managing a Protocol Data Unit (PDU) session associated with the traffic, a policy and charging control (PCC) rule including the indication. In some embodiments, the request is sent by the AF to the PCF via a network exposure function (NEF). In some embodiments, the method further includes managing, by the SMF, the UE IP address according to the PCC rule. In some embodiments, the managing includes preserving the UE IP address for a PDU session associated with the traffic. In some embodiments, the preserving includes preventing reselection of a protocol data unit (PDU) session anchor (PSA) to which the UE IP address is associated.

公开(公告)号：US09936534B2

公开(公告)日：2018-04-03

申请号：US14749129

申请日：2015-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianning Liu ,  Patrice Hede ,  Anni Wei ,  Lei Zhu

IPC: H04W76/04 ,  H04L29/06 ,  H04W76/02 ,  H04L12/14 ,  H04W28/16 ,  H04W36/26 ,  H04L12/24 ,  H04W28/24

CPC classification number: H04W76/27 ,  H04L12/1407 ,  H04L41/0816 ,  H04L41/5019 ,  H04L65/60 ,  H04W28/16 ,  H04W28/24 ,  H04W36/26 ,  H04W76/15 ,  H04W76/22

Abstract: The present invention discloses a data transmission method and apparatus. According to the present invention, when transmitting data by using a first radio bearer, a UE receives radio resource control connection reconfiguration information sent by a base station; the UE obtains a second radio bearer according to the radio resource control connection reconfiguration information; the UE sends radio resource control connection reconfiguration completion information to the base station; the UE transmits a part of the data which has not been transmitted by using the second radio bearer. The solutions provided by the embodiments of the present invention are suitable to be adopted during switch between an adaptive streaming mode and a progressive download mode.