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    METHOD AND NETWORK NODE FOR SECTOR SELECTION
    1.
    发明公开
    METHOD AND NETWORK NODE FOR SECTOR SELECTION 有权
    方法和网络节点分区选择

    公开(公告)号：EP3084978A1

    公开(公告)日：2016-10-26

    申请号：EP13826660.6

    申请日：2013-12-20

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： ARVIDSON, Pontus ,  ROSELIUS, Lars ,  TANO, Richard

    IPC分类号： H04B7/02

    摘要： The disclosure provides a method 30 for sector selection performed in a communication system 1 providing wireless communication to a communication device. The communication system 1 is configured for shared cell deployment, the shared cell 9 comprising at least two sectors 2, 3, 4. The communication system (1) is configured for link adaptation of a radio link between the communication device and the shared cell 9. The method 30 comprises: selecting 31, for the communication device 5, a set of sectors 2, 3, 4 for use in downlink transmissions to the communication device 5; determining 32, for the communication device 5, a link adaptation parameter value relating to the link adaptation; adapting 33, for a link adaptation parameter value that is higher than a threshold value, the set of sectors by adding a sector. The disclosure provides corresponding system, computer program and computer program products.

    ESTIMATING USER-PERCEIVED QUALITY OF AN ENCODED VIDEO STREAM
    3.
    发明公开
    ESTIMATING USER-PERCEIVED QUALITY OF AN ENCODED VIDEO STREAM 有权
    估计由视频流的消费者感知质量CODED

    公开(公告)号：EP2745518A1

    公开(公告)日：2014-06-25

    申请号：EP12835405.7

    申请日：2012-01-16

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： TANO, Richard ,  LINDEGREN, David

    IPC分类号： H04N7/26 ,  H04N17/00 ,  H04L29/06

    CPC分类号： H04L65/80 ,  H04N17/004 ,  H04N19/136 ,  H04N19/154

    摘要： One or more embodiments herein dynamically and objectively estimate user-perceived quality of an encoded video stream in dependence on the underlying video content of that stream. Estimation processing according to these embodiments includes generating a chronological sequence of the absolute or relative sizes of encoded video frames in the stream. Processing further entails analyzing this sequence to identify a plurality of reference characteristics that are defined in a reference model. These reference characteristics are more specifically defined in the reference model as parameters that characterize or are otherwise associated with content-dependent variations in user-perceived quality. For example, the reference characteristics in some embodiments comprise reference patterns or reference statistical measures that have been determined based on analyzing frame size sequences generated for reference video streams with known qualities. Regardless, processing finally includes estimating the user-perceived quality of the stream based on the identified reference characteristics, according to the reference model.

    ESTIMATING USER-PERCEIVED QUALITY OF AN ENCODED VIDEO STREAM
    10.
    发明授权
    ESTIMATING USER-PERCEIVED QUALITY OF AN ENCODED VIDEO STREAM 有权
    估计用户感知的编码视频流的质量

    公开(公告)号：EP2745518B1

    公开(公告)日：2017-06-14

    申请号：EP12835405.7

    申请日：2012-01-16

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： TANO, Richard ,  LINDEGREN, David

    IPC分类号： H04L29/06 ,  H04N17/00 ,  H04N19/136 ,  H04N19/154

    CPC分类号： H04L65/80 ,  H04N17/004 ,  H04N19/136 ,  H04N19/154

    摘要： One or more embodiments herein dynamically and objectively estimate user-perceived quality of an encoded video stream in dependence on the underlying video content of that stream. Estimation processing according to these embodiments includes generating a chronological sequence of the absolute or relative sizes of encoded video frames in the stream. Processing further entails analyzing this sequence to identify a plurality of reference characteristics that are defined in a reference model. These reference characteristics are more specifically defined in the reference model as parameters that characterize or are otherwise associated with content-dependent variations in user-perceived quality. For example, the reference characteristics in some embodiments comprise reference patterns or reference statistical measures that have been determined based on analyzing frame size sequences generated for reference video streams with known qualities. Regardless, processing finally includes estimating the user-perceived quality of the stream based on the identified reference characteristics, according to the reference model.

    摘要翻译： 这里的一个或多个实施例根据该流的基础视频内容来动态和客观地估计编码视频流的用户感知质量。 根据这些实施例的估计处理包括生成流中编码视频帧的绝对尺寸或相对尺寸的时间顺序。 处理还需要分析该序列以识别在参考模型中定义的多个参考特征。 这些参考特征在参考模型中被更具体地定义为表征或以其他方式与用户感知质量中的依赖于内容的变化相关联的参数。 例如，在一些实施例中，参考特征包括参考模式或参考统计量度，其已经基于分析具有已知质量的参考视频流而生成的帧大小序列而被确定。 无论如何，处理最终包括根据参考模型基于所识别的参考特征来估计流的用户感知质量。