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    EARLY PACKET LOSS DETECTION AND FEEDBACK
    1.
    发明公开
    EARLY PACKET LOSS DETECTION AND FEEDBACK 有权
    RÜCKKOPPLUNG的FRÜHEPAKETVERLUSTERKENNUNG

    公开(公告)号：EP2979487A1

    公开(公告)日：2016-02-03

    申请号：EP14728713.0

    申请日：2014-03-28

    申请人： VID SCALE, Inc.

    发明人： LIU, Weimin ,  VANAM, Rahul ,  MA, Liangping ,  REZNIK, Yuriy ,  STERNBERG, Gregory, S. ,  CHEN, Wei ,  VEER, Dharm

    IPC分类号： H04W28/04

    CPC分类号： H04L1/1887 ,  H04L1/18 ,  H04L43/0847 ,  H04L47/14 ,  H04L47/54 ,  H04L47/746 ,  H04N19/105 ,  H04N19/107 ,  H04N19/164 ,  H04N19/172 ,  H04N21/6437 ,  H04N21/6473 ,  H04N21/64776 ,  H04W28/04

    摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.

    摘要翻译： 视频编码设备（例如，无线发射/接收单元（WTRU））可以使用传输协议来发送具有帧序列号的编码帧。 视频编码装置，视频编码装置上的应用程序和/或编码装置上的协议层可以通过接收到错误通知来检测分组丢失。 可以在MAC层检测到丢包。 可以使用诸如欺骗性NACK分组，欺骗性XR分组或欺骗性ACK分组之类的欺骗分组来发信号通知丢包。 可以在MAC层（例如，由编码设备或无线路径上的另一设备）重传丢失的分组。 可以在上行链路操作和/或下行链路操作中执行分组丢失检测，和/或可以在通过云的视频获取应用中执行。 视频编码设备可以基于错误通知生成并发送第二编码帧。

    ADAPTING COMMUNICATION PARAMETERS TO LINK CONDITIONS, TRAFFIC TYPES, AND/OR PRIORITIES
    4.
    发明公开
    ADAPTING COMMUNICATION PARAMETERS TO LINK CONDITIONS, TRAFFIC TYPES, AND/OR PRIORITIES 审中-公开
    将通信参数适用于链接条件，流量类型和/或优先级

    公开(公告)号：EP3205035A1

    公开(公告)日：2017-08-16

    申请号：EP15784833.4

    申请日：2015-10-06

    申请人： VID SCALE, Inc.

    发明人： MA, Liangping ,  CHEN, Wei ,  STERNBERG, Gregory, S. ,  REZNIK, Yuriy ,  OTERI, Oghenekome

    IPC分类号： H04L1/00 ,  H04L12/801

    CPC分类号： H04W28/0242 ,  H04L1/0001 ,  H04L1/0033 ,  H04L47/11 ,  H04L47/24 ,  H04L65/80 ,  H04W28/0268 ,  H04W28/04

    摘要： Systems and methods are provided for adapting communication parameters to a variety of link conditions, traffic types and priorities. For example, WiFi transmission parameters (e.g. retry limit, AIFS, CW size, MCS order and/or CCA threshold) may be adapted to channel congestion levels, channel errors and/or traffic priority levels. Parameter adaptation may be coordinated across layers (e.g. between MAC and PHY layer parameters). Congestion levels may be detected, for example, using a smoothed queue size and/or channel busy time. Traffic may be transmitted using adapted parameters, such as reduced retry limits for a high congestion level and increased retry limits for priority traffic in response to channel error. Feedback may support parameter adaptation. For example, feedback may be provided by a receiver and/or within a sender, such as a sender MAC and/or PHY layer or a parameter adapter providing feedback (e.g. spoofed NACK packet) to a sender application, transport and/or network layer.

    摘要翻译： 提供了用于使通信参数适应各种链路条件，业务类型和优先级的系统和方法。 例如，WiFi传输参数（例如，重试限制，AIFS，CW大小，MCS命令和/或CCA阈值）可适用于信道拥塞等级，信道差错和/或业务优先级等级。 参数适配可跨层协调（例如在MAC层和PHY层参数之间）。 例如，可以使用平滑的队列大小和/或信道繁忙时间来检测拥塞水平。 可以使用适应的参数来传输业务量，例如针对高拥塞等级的降低的重试限制以及针对响应于信道错误的优先级业务的重试限制的增加。 反馈可能支持参数适配。 例如，反馈可以由接收器和/或发送器内的发送者应用程序，传输和/或网络层提供反馈（例如，伪造的NACK分组），诸如发送者MAC和/或PHY层或参数适配器 。

    NETWORK-BASED EARLY PACKET LOSS DETECTION
    5.
    发明公开
    NETWORK-BASED EARLY PACKET LOSS DETECTION 有权
    NETZWERKBASIERTEFRÜHEPAKETVERLUSTDETEKTION

    公开(公告)号：EP3127304A2

    公开(公告)日：2017-02-08

    申请号：EP15766261.0

    申请日：2015-04-03

    申请人： VID SCALE, Inc.

    发明人： BALASUBRAMANIAN, Anantharaman ,  MA, Liangping ,  STERNBERG, Gregory, S. ,  KEROFSKY, Louis ,  NEFF, Ralph

    IPC分类号： H04L29/08 ,  H04L29/06

    CPC分类号： H04L43/0829 ,  H04L1/1664 ,  H04L65/403 ,  H04L65/608 ,  H04L65/80 ,  H04L67/2804 ,  H04L2001/0097 ,  H04N7/152

    摘要： A packet loss notification in a video transmission may be performed by a network device. The network device may receive a first video packet sent from a first client to a second client. The network device may determine that the first video packet has been lost. The network device may determine a video packet receiving port number of the first client. The network device may receive a second video packet sent from the second client to the first client. The network device may determine that the second video packet includes a destination port number that matches a video packet receiving port number of the first client. The network device may modify the second video packet by adding packet loss information indicating that the first video packet has been lost. The network device may send the modified second video packet to the first client.

    摘要翻译： 视频传输中的分组丢失通知可以由网络设备执行。 网络设备可以接收从第一客户端发送到第二客户端的第一视频分组。 网络设备可以确定第一视频分组已经丢失。 网络设备可以确定第一客户端的视频分组接收端口号。 网络设备可以接收从第二客户端发送到第一客户端的第二视频分组。 网络设备可以确定第二视频分组包括与第一客户端的视频分组接收端口号匹配的目的地端口号。 网络设备可以通过添加指示第一视频分组丢失的分组丢失信息来修改第二视频分组。 网络设备可以将修改的第二视频分组发送到第一客户端。

    QOE-AWARE WIFI ENHANCEMENTS FOR VIDEO FOR VIDEO APPLICATIONS
    6.
    发明公开
    QOE-AWARE WIFI ENHANCEMENTS FOR VIDEO FOR VIDEO APPLICATIONS 审中-公开
    QOE-BEWUSSTE WIFI-ERWEITERUNGENFÜRVIDEOFÜRVIDEOANWENDUNGEN

    公开(公告)号：EP2995090A1

    公开(公告)日：2016-03-16

    申请号：EP14730316.8

    申请日：2014-05-07

    申请人： VID SCALE, Inc.

    发明人： MA, Liangping ,  RAPAPORT, Avi ,  STERNBERG, Gregory, S. ,  WEIMIN, Liu ,  BALASUBRAMANIAN, Anantharaman ,  REZNIK, Yuriy ,  ZEIRA, Ariela ,  XU, Tianyi

    IPC分类号： H04N21/442 ,  H04N21/4425 ,  H04N21/6375 ,  H04N21/6377

    CPC分类号： H04N21/6375 ,  H04L65/80 ,  H04N21/44209 ,  H04N21/4425 ,  H04N21/6125 ,  H04N21/6377

    摘要： An importance level may be associated with a video packet at the video source and/or determined using the history of packet loss corresponding to a video flow. A video packet may be associated with a class and may be further associated within a sub-class, for example, based on importance level. Associating a video packet with an importance level may include receiving a video packet associated with a video stream, assigning an importance level to the video packet, and sending the video packet according to the access category and importance level. The video packet may be characterized by an access category. The importance level may be associated with a transmission priority of the video packet within the access category of the video packet and/or a retransmission limit of the video packet.

    摘要翻译： 重要性级别可以与视频源处的视频分组相关联和/或使用与视频流对应的分组丢失历史来确定。 视频分组可以与类相关联，并且可以进一步关联在子类中，例如基于重要性级别。 将视频分组与重要性级相关联可以包括接收与视频流相关联的视频分组，向视频分组分配重要性级别，以及根据接入类别和重要性级别发送视频分组。 视频分组可以由访问类别来表征。 重要性级别可以与视频分组的访问类别内的视频分组的传输优先级和/或视频分组的重传限制相关联。

    HIERARCHICAL TRAFFIC DIFFERENTIATION TO HANDLE CONGESTION AND/OR MANAGE USER QUALITY OF EXPERIENCE
    7.
    发明公开
    HIERARCHICAL TRAFFIC DIFFERENTIATION TO HANDLE CONGESTION AND/OR MANAGE USER QUALITY OF EXPERIENCE 审中-公开
    流量层次辨证为拥塞管理和/或用户体验质量

    公开(公告)号：EP2815603A1

    公开(公告)日：2014-12-24

    申请号：EP13708293.9

    申请日：2013-02-16

    申请人： VID SCALE, Inc.

    发明人： MA, Liangping ,  KAUR, Samian ,  KARAMPATSIS, Dimitrios ,  RAPAPORT, Avi ,  STERNBERG, Gregory ,  REZNIK, Yuriy ,  ZEIRA, Ariela ,  LIU, Weimin ,  SONI, Naresh

    IPC分类号： H04W28/06

    CPC分类号： H04W28/0289 ,  H04L47/2408 ,  H04L47/32 ,  H04W28/0263 ,  H04W28/0268 ,  H04W72/1242 ,  H04W88/16

    摘要： Methods, apparatuses and systems for performing hierarchical traffic differentiation and/or employing hierarchical traffic differentiation are provided. These methods, apparatuses and systems may be implemented to, for example, handle congestion and/or to manage user quality of experience (QoE). Performing the hierarchical traffic differentiation may include differentiating or otherwise classifying (collectively “differentiating”) traffic mapped to, or within, a bearer formed in accordance with a QoS class into multiple traffic sub-classes. Employing the hierarchical traffic differentiation may include scheduling and/or policing (e.g., filtering) the differentiated traffic for transmission based on a prioritization of, and/or policy for managing, the multiple traffic sub-classes.

    摘要翻译： 所提供的方法，装置和系统进行流量层次分化和/或采用流量层次分化。 这些方法，装置和系统可以被实现为，例如，处理拥塞和/或管理的经验（QoE）的用户质量。 执行分层流量区分可包括鉴别或以其他方式进行分类（统称为“区分”）业务映射到，或者内，在雅舞蹈形成具有QoS等级划分成多个业务的子类的承载。 采用分层流量区分可包括调度和/或监管（例如，过滤）的基础上的一个优先化用于传输的差异的流量，和/或策略用于管理，所述多个业务的子类。

    ADAPTING COMMUNICATION PARAMETERS TO LINK CONDITIONS, TRAFFIC TYPES, AND/OR PRIORITIES
    8.
    发明公开
    ADAPTING COMMUNICATION PARAMETERS TO LINK CONDITIONS, TRAFFIC TYPES, AND/OR PRIORITIES 审中-公开

    公开(公告)号：EP3955487A1

    公开(公告)日：2022-02-16

    申请号：EP21198921.5

    申请日：2015-10-06

    申请人： Vid Scale, Inc.

    发明人： MA, Liangping ,  CHEN, Wei ,  STERNBERG, Gregory S. ,  REZNIK, Yuriy ,  OTERI, Oghenekome

    IPC分类号： H04L1/00 ,  H04W28/02 ,  H04L1/18

    摘要： Systems and methods are provided for adapting communication parameters to a variety of link conditions, traffic types and priorities. For example, WiFi transmission parameters (e.g. retry limit, AIFS, CW size, MCS order and/or CCA threshold) may be adapted to channel congestion levels, channel errors and/or traffic priority levels. Parameter adaptation may be coordinated across layers (e.g. between MAC and PHY layer parameters). Congestion levels may be detected, for example, using a smoothed queue size and/or channel busy time. Traffic may be transmitted using adapted parameters, such as reduced retry limits for a high congestion level and increased retry limits for priority traffic in response to channel error. Feedback may support parameter adaptation. For example, feedback may be provided by a receiver and/or within a sender, such as a sender MAC and/or PHY layer or a parameter adapter providing feedback (e.g. spoofed NACK packet) to a sender application, transport and/or network layer.