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公开(公告)号：US11558677B2
公开(公告)日：2023-01-17
申请号：US16348881
申请日：2017-11-10
IPC分类号： H04N21/845 , H04N21/84 , H04L65/70 , H04L65/75 , H04L65/80 , H04N21/8352 , A61B34/00 , A61B90/00 , H04L65/612 , A61B34/37 , A61B17/00
摘要： A flexible approach to segmenting a resource (e.g., a media resource, such as a media segment, or other resource, such as a resource normally fetched or pushed using general file transfer protocols like HTTP) into a plurality of fragments. By employing such an approach, the delay until the resource can be utilized at the client side is reduced. Certain embodiments are provided which apply the flexible segmentation approach to ISOBMFF media segments for video streaming, such as would be used with Live DASH streaming.
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公开(公告)号：US20220255816A1
公开(公告)日：2022-08-11
申请号：US17623759
申请日：2020-04-30
IPC分类号： H04L41/5067 , H04L41/16 , H04L41/147 , H04L43/0888 , H04L43/0894 , H04L43/0864
摘要： An apparatus in a mobile communication network combines information from monitoring IP flows carrying latency sensitive content passing the apparatus and information about the application behavior and target Quality of Experience (QoE) or target connectivity characteristics such as Quality of Service (QoS) from the application to provide ongoing predictions of QoE/QoS. In some cases, the apparatus exploits a probe on a device to generate traffic for learning flow characteristics not obtained from monitoring application IP flows in the network. Embodiments disclosed herein can be used to predict quality metrics for many applications where jitter/latency is a factor affecting perceived quality, such as QoE for a human consumer or QoS for machine type communications. The embodiments are applicable to the analysis of traffic carrying conversational speech.
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公开(公告)号：US11284254B2
公开(公告)日：2022-03-22
申请号：US17047533
申请日：2019-04-12
发明人： Göran Rune , Jari Arkko , Jesus-Angel de-Gregorio-Rodriguez , Göran Eriksson , Magnus Westerlund
摘要： Systems and methods that are particularly well-suited for service-based core network endpoint authentication are disclosed. In some embodiments, a method of operation of a network node implementing a second network function in a core network of a cellular communications system comprises receiving, at a main service of the second network function, a request from a first network function for a desired service via Hypertext Transfer Protocol/Representational State Transfer (HTTP/REST) signaling. The request comprises information that identifies one or more delegate endpoints of the first network function that expose one or more delegate services, respectively, of the first network function for providing the desired service using one or more different communication styles. The method further comprises initiating the desired service using a selected delegate endpoint from the one or more delegate endpoints identified by the information comprised in the request.
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公开(公告)号：US11190455B2
公开(公告)日：2021-11-30
申请号：US16958192
申请日：2018-02-28
发明人： Tommy Falk , Alfred Samuelson , Magnus Westerlund
IPC分类号： H04L12/823 , H04L29/06 , H04L12/841
摘要： There is provided mechanisms for decoding a media stream. A method is performed by a packet receiver. The method comprises receiving packets. The packets have been transmitted by a packet transmitter. The packets define the media stream and each packet comprises encoded media. The method comprises decoding the encoded media into at least a first decoded version and a second decoded version. For the first decoded version only a subset of the packets decoded for the second decoded version are decoded. The subset includes only those of the packets that are received within a first threshold time delay from having been transmitted by the packet transmitter.
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公开(公告)号：US11902115B2
公开(公告)日：2024-02-13
申请号：US17623759
申请日：2020-04-30
IPC分类号： H04L41/5067 , H04L41/147 , H04L41/16 , H04L43/0864 , H04L43/0888 , H04L43/0894
CPC分类号： H04L41/5067 , H04L41/147 , H04L41/16 , H04L43/0864 , H04L43/0888 , H04L43/0894
摘要： An apparatus in a mobile communication network combines information from monitoring IP flows carrying latency sensitive content passing the apparatus and information about the application behavior and target Quality of Experience (QoE) or target connectivity characteristics such as Quality of Service (QoS) from the application to provide ongoing predictions of QoE/QoS. In some cases, the apparatus exploits a probe on a device to generate traffic for learning flow characteristics not obtained from monitoring application IP flows in the network. Embodiments disclosed herein can be used to predict quality metrics for many applications where jitter/latency is a factor affecting perceived quality, such as QoE for a human consumer or QoS for machine type communications. The embodiments are applicable to the analysis of traffic carrying conversational speech.
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公开(公告)号：US11570456B2
公开(公告)日：2023-01-31
申请号：US17025086
申请日：2020-09-18
IPC分类号： H04N19/70 , H04N19/436 , H04N19/46 , H04N19/196 , H04N19/156
摘要： A method to be performed by a receiving apparatus for decoding an encoded bitstream representing a sequence of pictures of a video stream is provided. In the method, capabilities relating to level of decoding parallelism for the decoder are identified, a parameter indicative of the decoder's capabilities relating to level of decoding parallelism is kept, and for a set of levels of decoding parallelism, information relating to HEVC profile and HEVC level that the decoder is capable of decoding is kept.
A method for encoding a bitstream representing a sequence of pictures of a video stream is also provided. In the method, a parameter is received from a transmitting apparatus that should decode the encoded bitstream.-
公开(公告)号：US11374999B2
公开(公告)日：2022-06-28
申请号：US16337150
申请日：2016-09-28
IPC分类号： H04L67/02 , H04W12/069 , H04L9/40
摘要： According to a yet further aspect of the embodiments of the present invention a server 1020 configured to bind a device application to a web service is provided. The server comprises WebRTC functionality. The server is configured to receive a request for the web service from the device application, wherein communication between the server and the device application is done via https and WebRTC and the device application is configured to generate WebRTC credentials comprising a private key, certificate of the private key and a fingerprint of the certificate. The server is configured to receive the fingerprint and fingerprint generation algorithm of the certificate, store the fingerprint and fingerprint generation algorithm and associating the fingerprint with the device application, and use DTLS, providing the certificate of the device application, in combination with the stored fingerprint to identify the device application to bind the device application to the web service.
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公开(公告)号：US10171327B2
公开(公告)日：2019-01-01
申请号：US15034399
申请日：2013-11-08
发明人： Bo Burman , Göran Eriksson , Magnus Westerlund
摘要： There is provided a network information system for handling network characteristics. The network information system comprises a first functional module, a second functional module, and a third functional module. The third functional module is arranged to invoke handling of network characteristics by triggering operation of the first functional module and the second functional module. An available bitrate for a media flow is estimated. Information about a permitted share of physical resources to be used during the transmission of the media flow is acquired. The estimated available bitrate for the media flow is updated. The updated estimated available bitrate is provided to a network entity associated with transmission of the media flow.
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公开(公告)号：US11711530B2
公开(公告)日：2023-07-25
申请号：US17254561
申请日：2019-06-20
发明人： Rickard Sjöberg , Magnus Westerlund
IPC分类号： H04N19/44 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/88
CPC分类号： H04N19/44 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/88
摘要： A decoder (100) receives (30) a set of N compressed segments of a first picture, and a set of M compressed segments for a second picture that follows the first picture in a decoding order. Based on the set of N compressed segments, the decoder constructs a decodable picture for the first picture and decodes (32) the decodable picture. Based on the set of M compressed segments, the decoder constructs a decodable second picture in the compressed domain, in which each of the segments of the first picture are placed at the same spatial position as that of a corresponding segment in the second picture, and decodes (52) the decodable second picture. Additionally, at least one Intra coded segment is placed at one of the M spatial positions in the compressed domain in which there is no segment of the N segments.
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公开(公告)号：US20210075736A1
公开(公告)日：2021-03-11
申请号：US16958192
申请日：2018-02-28
发明人： Tommy Falk , Alfred Samuelson , Magnus Westerlund
IPC分类号： H04L12/823 , H04L29/06
摘要： There is provided mechanisms for decoding a media stream. A method is performed by a packet receiver. The method comprises receiving packets. The packets have been transmitted by a packet transmitter. The packets define the media stream and each packet comprises encoded media. The method comprises decoding the encoded media into at least a first decoded version and a second decoded version. For the first decoded version only a subset of the packets decoded for the second decoded version are decoded. The subset includes only those of the packets that are received within a first threshold time delay from having been Decode encoded media transmitted by the packet transmitter.
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