公开(公告)号：US10230648B2

公开(公告)日：2019-03-12

申请号：US14983061

申请日：2015-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ngoc Dung Dao ,  Hamidreza Farmanbar

IPC: H04L12/26 ,  H04L12/825 ,  H04L12/835 ,  H04L29/06

Abstract: A method for rata adaption and a network device providing rate adaption are disclosed. In an embodiment the method includes determining a source rate adjustment in accordance with a buffer status of a radio node and transmitting towards a traffic source, a source rate adjustment request in accordance with the determined source rate adjustment.

公开(公告)号：US10193813B2

公开(公告)日：2019-01-29

申请号：US15380859

申请日：2016-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ngoc Dung Dao

IPC: H04L12/853 ,  H04L12/841 ,  H04L29/06 ,  H04N21/647

Abstract: Embodiments are provided herein for a system and methods for real-time video (or other real-time traffic) delivery, e.g., for cellular or wireless networks. The schemes herein address real-time video delivery by a joint design of the radio resource scheduler and the video encoder at the network side, and of the decoder at the users' terminals. The system design reduces frame loss and hence improves user quality of experience. In an embodiment, a radio node detects a frame of a real-time traffic flow. Upon determining that a transmission deadline corresponding to a rate for real-time traffic flow does not support a size of the frame, the transmission deadline is extended according to the size of the frame and a size of a next frame. The frame and the next frame are scheduled for forwarding within the extended transmission deadline.

公开(公告)号：US09894421B2

公开(公告)日：2018-02-13

申请号：US13657559

申请日：2012-10-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ngoc Dung Dao ,  Aaron James Callard ,  Hang Zhang ,  Ho Ting Cheng

IPC: G06F15/16 ,  H04N21/61 ,  H04L29/06 ,  H04N21/6437 ,  H04N21/6583 ,  H04N21/845

CPC classification number: H04N21/6125 ,  H04L65/607 ,  H04L69/04 ,  H04N21/6437 ,  H04N21/6583 ,  H04N21/8456

Abstract: Systems and methods reduce redundancy in a data representation. The data is divided into a plurality of data portions. The data portions are used to encode a plurality of compressed data portions, wherein the compressed data portions correspond to a subset of the data portions and comprise less redundant data than the subset of the data portions. The compressed data portions are also encoded in accordance with data in the remaining data portions. The compressed data portions are transmitted instead of the subset of the data portions with the remaining data portions according to a sequence of data portions. Each of the compressed data portions is transmitted upon receiving an acknowledgment message that indicates successful transmission of a previous data portion or compressed data portion in the sequence of data portions.

公开(公告)号：US20160226529A1

公开(公告)日：2016-08-04

申请号：US14610614

申请日：2015-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ngoc Dung Dao ,  Hang Zhang

IPC: H03M13/00 ,  H04L29/06 ,  H04W8/18 ,  H03M13/37

CPC classification number: H04W8/18 ,  H03M13/373 ,  H03M13/3761 ,  H04L1/0009 ,  H04L1/0057 ,  H04L65/605 ,  H04L65/607 ,  H04L2001/0093

Abstract: Real-time video can be efficiently and reliably streamed over wireless networks by fountain encoding a stream of video packets at the frame-level. Specifically, deep packet inspection may be performed on the stream of video packets to identify a set of video packets corresponding to an intra-coded frame (I-frame). The set of video packet may then be fountain encoded together as a data segment to produce a set of fountain encoded packets corresponding to the I-frame. Video packets corresponding to other frames (e.g., P-frames, etc.) may also be encoded on a frame-by-frame basis. This may allow a user equipment (UE) to begin displaying earlier frames in a group of pictures (GoP) while fountain encoded packets for subsequent frames are still being received, thereby reducing latency and improving the overall user experience.

Abstract translation: 通过在帧级编码视频数据包流，可以通过无线网络高效可靠地流式传输视频。 具体地，可以对视频分组流执行深度分组检查，以识别与帧内编码帧（I帧）对应的一组视频分组。 然后，该组视频分组可以一起作为数据段进行喷泉编码，以产生与I帧对应的一组喷泉编码分组。 对应于其他帧（例如，P帧等）的视频分组也可以逐帧编码。 这可以允许用户设备（UE）开始在一组图像（GoP）中显示较早的帧，而用于后续帧的喷泉编码分组仍然被接收，从而减少等待时间并改善整体用户体验。

公开(公告)号：US09344123B2

公开(公告)日：2016-05-17

申请号：US13680894

申请日：2012-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Aaron James Callard ,  Hamidreza Farmanbar ,  Alex Stephenne ,  Ngoc Dung Dao

IPC: H04B1/10 ,  H04L1/18 ,  H04L27/26 ,  H04L12/413 ,  H04B1/7103 ,  H04L25/03 ,  H04B15/00 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04B1/1027 ,  H04B1/10 ,  H04B1/7103 ,  H04B15/00 ,  H04L1/1819 ,  H04L1/1845 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04L12/413 ,  H04L25/03006 ,  H04L27/2691 ,  H04L2001/0097

Abstract: Historical decoding in accordance with signal interference cancellation (SIC) or joint processing may reduce the amount of data that is re-transported across a network following an unsuccessful attempt to decode a data transmission. In one example, historical decoding is performed in accordance with interference cancellation by communicating information related to interfering data (rather than information related to serving data) following a served receiver's unsuccessful attempt to decode an interference signal. The information related to the interfering data may be the information bits carried by the earlier interfering data transmission or parity information (e.g., forward error correction (FEC) bits, etc.) related to the earlier interfering data transmission.

Abstract translation: 根据信号干扰消除（SIC）或联合处理的历史解码可以减少在不成功解码数据传输的尝试之后通过网络重新传输的数据量。 在一个示例中，在服务的接收机的不成功尝试解码干扰信号之后，通过传送与干扰数据相关的信息（而不是与服务数据相关的信息），根据干扰消除来执行历史解码。 与干扰数据相关的信息可以是与较早的干扰数据传输相关的早期干扰数据传输或奇偶校验信息（例如，前向纠错（FEC）比特等）携带的信息比特。

公开(公告)号：US20160105684A1

公开(公告)日：2016-04-14

申请号：US14514054

申请日：2014-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Philippe Leroux ,  Ngoc Dung Dao

IPC: H04N19/593 ,  H04L29/08

CPC classification number: H04L67/06 ,  H04L65/4084 ,  H04L65/605 ,  H04L65/80 ,  H04L67/325

Abstract: In one embodiment, method for transmitting video includes determining a first video transmission schedule and selecting one frame type of a plurality of frame types to produce a selected encoded frame in accordance with the first video transmission schedule. The method also includes transmitting, by a first device to a second device, the selected encoded.

Abstract translation: 在一个实施例中，用于发送视频的方法包括：根据第一视频传输调度确定第一视频传输调度并选择多个帧类型的一种帧类型以产生所选择的编码帧。 该方法还包括由第一设备向第二设备发送所选择的编码。

公开(公告)号：US11974350B2

公开(公告)日：2024-04-30

申请号：US17503492

申请日：2021-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Hang Zhang ,  Xu Li

IPC: H04W76/30 ,  H04L67/14 ,  H04W36/00 ,  H04W36/14 ,  H04W76/10 ,  H04W76/27 ,  H04W76/34 ,  H04L69/327 ,  H04W24/10 ,  H04W28/24 ,  H04W80/10 ,  H04W88/14

CPC classification number: H04W76/30 ,  H04L67/14 ,  H04W36/0016 ,  H04W36/0022 ,  H04W36/14 ,  H04W76/10 ,  H04W76/27 ,  H04W76/34 ,  H04L69/327 ,  H04W24/10 ,  H04W28/24 ,  H04W36/0011 ,  H04W80/10 ,  H04W88/14

Abstract: A network architecture and methods of managing packet data unit (PDU) sessions in a network are provided. The methods include PDU session establishment procedures, PDU session modification procedures, PDU session state transfer procedures, PDU session release procedures, and user equipment (UE) handover procedures.

公开(公告)号：US11856501B2

公开(公告)日：2023-12-26

申请号：US17827049

申请日：2022-05-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Li ,  Ngoc Dung Dao ,  Jaya Rao

IPC: H04W40/02 ,  H04L41/0816 ,  H04L45/02 ,  H04L9/40 ,  H04W12/06 ,  H04W28/08 ,  H04W40/34 ,  H04L12/46 ,  H04L41/046 ,  H04W40/36 ,  H04W12/08 ,  H04W28/088 ,  H04L43/0811

CPC classification number: H04W40/02 ,  H04L41/0816 ,  H04L45/02 ,  H04L63/102 ,  H04W12/06 ,  H04W12/08 ,  H04W28/08 ,  H04W40/34 ,  H04L12/4604 ,  H04L41/048 ,  H04L43/0811 ,  H04W28/088

Abstract: Systems and methods for performing User Plane (UP) path selection or reselection over a communications network with a 3rd party entity, and for notifying network entities of UP changes in a communications network, are disclosed. The method includes: receiving an application program interface based request for UP path selection from the 3rd party entity; performing a validation and authorization procedure with the request; transmitting a UP path selection configuration request to a Control Plane Function that maintains configuration data; obtaining a reference number confirming the UP path selection configuration request; and installing the UP path selection according to the reference number.

公开(公告)号：US11838756B2

公开(公告)日：2023-12-05

申请号：US17372857

申请日：2021-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Li ,  Ngoc Dung Dao

IPC: H04W12/06 ,  H04W60/04 ,  H04W4/60 ,  H04W4/50 ,  H04W8/06 ,  H04W72/53 ,  H04W72/50 ,  H04W16/04 ,  H04W28/02 ,  H04W36/14 ,  H04W80/10 ,  H04W8/14 ,  H04W4/14 ,  H04W36/12 ,  H04W76/12 ,  H04W36/22

CPC classification number: H04W12/06 ,  H04W4/50 ,  H04W4/60 ,  H04W8/065 ,  H04W16/04 ,  H04W28/02 ,  H04W36/14 ,  H04W60/04 ,  H04W72/53 ,  H04W72/535 ,  H04W80/10 ,  H04W4/14 ,  H04W8/14 ,  H04W36/12 ,  H04W36/22 ,  H04W76/12

Abstract: Methods by which User Plane (UP) management information is exchanged between an Application Function (AF) supporting one or more applications and a Slice Management Function (SMF) configured to manage traffic flows in a given slice of the network. The exchange of UP management information may be initiated from either the AF or the SMF. In the case of AF-initiated information exchange, the UP management information provided by the AF may comprise traffic requirements of applications supported by the AF. In the case of SMF-initiated information exchange, the UP management information provided by the SM may comprise operator policy information or events, and the AF may respond with information of traffic requirements of applications supported by the AF.

公开(公告)号：US11758416B2

公开(公告)日：2023-09-12

申请号：US17231560

申请日：2021-04-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Xu Li

IPC: H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W72/50 ,  H04W84/12

CPC classification number: H04W24/02 ,  H04W24/08 ,  H04W72/535 ,  H04W24/10 ,  H04W84/12

Abstract: A network data analytics (NWDA) function and method of policy optimization in a communication network are provided. The NWDA performs data analytics on the communication network traffic, and includes communication interfaces to connect to other network elements in the communication network. The method comprises the NWDA function configured to receive a request for a policy input, send instructions to network elements to obtain network performance measurement data, receive the measurement data from the network elements, and transmit a policy input based on the received measurement data.