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    Bandwidth adaptation
    1.
    发明专利
    Bandwidth adaptation 审中-公开
    带宽适应

    公开(公告)号：JP2010136395A

    公开(公告)日：2010-06-17

    申请号：JP2009292546

    申请日：2009-12-24

    Applicant: Nokia Corp ,  ノキア コーポレイション

    Inventor： CURCIO IGOR DANILO DIEGO ,  LUNDAN MIIKKA ,  AKSU EMRE BARIS ,  WANG RU-SHANG ,  VARSA VIKTOR ,  LEON DAVID

    IPC: H04N7/173 ,  H04L12/54 ,  H04L29/06 ,  H04M11/00 ,  H04W28/18 ,  H04W28/22

    CPC classification number: H04L65/80 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/263 ,  H04L47/70 ,  H04L47/765 ,  H04L47/767 ,  H04L47/801 ,  H04L47/808 ,  H04L47/824 ,  H04L65/1083 ,  H04L65/4038 ,  H04L65/608 ,  H04L69/24 ,  Y02D50/10

    Abstract: PROBLEM TO BE SOLVED: To provide a method for packet switched streaming of media, such as video and/or audio, from a streaming server to a mobile client device over an air-interface.
    SOLUTION: The method includes the steps of: noticing a change in a downlink air-interface bandwidth; sending from a mobile client device to a streaming server a request for adapting a streaming server transmission bit rate; receiving the request at the streaming server; and adapting the streaming server transmission bit rate in accordance with the request. According to the method, the request indicates to the streaming server a current downlink air-interface bandwidth and that the adapting of the streaming server transmission bit rate is performed in accordance with the current downlink air-interface bandwidth.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于通过空中接口从流服务器到移动客户端设备的诸如视频和/或音频的媒体的分组交换流的方法。 解决方案：该方法包括以下步骤：注意下行链路空中接口带宽的变化; 从移动客户端设备向流服务器发送适应流服务器传输比特率的请求; 在流服务器处接收请求; 以及根据请求调整流服务器传输比特率。 根据该方法，该请求向流服务器指示当前下行链路空中接口带宽，并且根据当前下行链路空中接口带宽进行流服务器传输比特率的调整。 版权所有（C）2010，JPO＆INPIT

    MULTIMEDIA STREMING IN A NETWORK WITH A BOTTLENECK LINK
    2.
    发明申请
    MULTIMEDIA STREMING IN A NETWORK WITH A BOTTLENECK LINK 审中-公开
    多媒体用BOTTLENECK连接在网络中

    公开(公告)号：WO2004030433A3

    公开(公告)日：2004-07-22

    申请号：PCT/IB0304314

    申请日：2003-10-01

    Applicant: NOKIA CORP ,  NOKIA INC

    Inventor： VARSA VIKTOR ,  LEON DAVID ,  GUERRERO DURHAN ,  JANSSON CRIS

    IPC: H04L12/56 ,  H04J3/22

    CPC classification number: H04L65/4069 ,  H04L47/10 ,  H04L47/127 ,  H04L47/14 ,  H04L47/263 ,  H04L47/30 ,  H04L47/33 ,  H04L65/80

    Abstract: A method used for communicating packets or other information units from a server (11) to a client (15) over a communication path including a packet scheduler (14-1) followed by a bottleneck path (14-2), with the packet scheduler (14-1) having a buffer for holding packets so as not to transmit over the bottleneck path (14-2) at a rate either too high or too low, the method providing that the server (11) communicate to the client (15) the last packet sent to the client (11) and do so via a mechanism by which the sender information is communicated over the bottleneck path (14-2) ahead of substantially all packets already in the buffer. The client (11) then uses the sender information to provide, as needed, information useful in adapting the rate at which the packets arrive at the packet scheduler (14-1).

    Abstract translation: 一种用于通过包括分组调度器（14-1）跟随有瓶颈路径（14-2）的通信路径将分组或其他信息单元从服务器（11）传送到客户机（15）的方法，其中分组调度器 （14-1）具有用于保持分组的缓冲器，以便不以太高或太低的速率在所述瓶颈路径（14-2）上传输，所述方法提供所述服务器（11）与所述客户端（15）通信 ）发送到客户端（11）的最后一个分组，并且通过在基本上已经在缓冲器中的所有分组之前通过瓶颈路径（14-2）传送发送者信息的机制来执行。 客户端（11）然后使用发送者信息来根据需要提供有助于使分组到达分组调度器（14-1）的速率的信息。

    METHOD AND DEVICE FOR MULTIMEDIA STREAMING
    4.
    发明申请
    METHOD AND DEVICE FOR MULTIMEDIA STREAMING 审中-公开
    多媒体流的方法和装置

    公开(公告)号：WO2004083992A3

    公开(公告)日：2004-11-25

    申请号：PCT/IB2004000479

    申请日：2004-02-25

    Applicant: NOKIA CORP ,  NOKIA INC ,  WANG RU-SHANG ,  VARSA VIKTOR ,  LEON DAVID ,  AKSU EMRE BARIS ,  CURCIO IGOR DANILO DIEGO

    Inventor： WANG RU-SHANG ,  VARSA VIKTOR ,  LEON DAVID ,  AKSU EMRE BARIS ,  CURCIO IGOR DANILO DIEGO

    IPC: H04L29/06 ,  G06F15/16 ,  G06F9/54 ,  G06F13/14

    CPC classification number: H04L65/608 ,  H04L29/06027 ,  H04L65/80

    Abstract: A method to provide to a sender (20) of RTP packets the actual receiver (50) buffer (54) fullness level in a receiver of the RTP packets at a certain time instant represented as remaining playout duration in time. The receiver sends in an RTCP report (26) the sequence number of a selected RTP packet in the receiver buffer and the time difference between the scheduled playout time of this packet and the current time. Based on this timing information, the sender calculates the amount of time it would take for the receiver buffer to empty if the receiver continues to playout at normal speed and no further RTP packets arrive to the receiver buffer. This receiver buffer fullness level information can be used at the sender to adjust the transmission rate and/or nominal playout rate of the RTP packets in order to maintain a targeted receiver buffer fullness level.

    Abstract translation: 在RTP分组的接收机中向RTP分组的发送器（20）提供RTP分组的发送器（20）的方法，该特定时刻在时间上表示为剩余播出持续时间。 接收器在RTCP报告（26）中发送接收缓冲器中选定的RTP分组的序列号和该分组的调度播出时间与当前时间之间的时间差。 基于该定时信息，如果接收机以正常速度继续播放并且没有其他RTP分组到达接收机缓冲器，则发送器计算接收器缓冲器将要花费的时间量。 可以在发送器处使用该接收器缓冲器充满度级别信息来调整RTP分组的传输速率和/或标称播放速率，以便维持目标接收机缓冲器充满水平。

    METHOD FOR ENABLING PACKET TRANSFER DELAY COMPENSATION IN MULTIMEDIA STREAMING
    7.
    发明申请
    METHOD FOR ENABLING PACKET TRANSFER DELAY COMPENSATION IN MULTIMEDIA STREAMING 审中-公开
    一种在多媒体流媒体中启用分组传输延迟补偿的方法

    公开(公告)号：WO2004008673A3

    公开(公告)日：2004-12-16

    申请号：PCT/IB0302816

    申请日：2003-07-16

    Applicant: NOKIA CORP ,  NOKIA INC

    Inventor： VARSA VIKTOR ,  GUERRERO DURHAN ,  WANG RU-SHANG ,  AKSU EMRE BARIS

    IPC: G06F15/16 ,  H04L12/56 ,  H04L29/06 ,  H04N7/24

    CPC classification number: H04L65/607 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/22 ,  H04L47/263 ,  H04L47/28 ,  H04L47/283 ,  H04L65/80 ,  H04N21/2401 ,  H04N21/6332 ,  H04N21/6336 ,  H04N21/654

    Abstract: A method and device for enabling packet transfer delay compensation in multimedia streaming. In order to enable a streaming server to optimally operate its rate-control and rate-shaping algorithms to compensate for packet transfer delay variation, information indicative of jitter buffering capabilities of the streaming client is conveyed to the streaming server. The information contains the client's chosen pre-decoding parameters so that the client's jitter buffering capabilities can be determined by the server based on the difference between the client's chosen pre-decoding parameters and the pre-decoding buffering parameters provided by the streaming server.

    Abstract translation: 一种用于在多媒体流中启用分组传输延迟补偿的方法和设备。 为了使流式服务器能够最优地操作其速率控制和速率成形算法来补偿分组传送延迟变化，将表示流式客户端的抖动缓冲能力的信息传送给流式传送服务器。 该信息包含客户端选择的预解码参数，以便客户端的抖动缓存能力可以由服务器根据客户端选择的预解码参数与流媒体服务器提供的预解码缓存参数之间的差异来确定。

    METHOD AND DEVICE FOR MULTIMEDIA STREAMING
    9.
    发明公开
    METHOD AND DEVICE FOR MULTIMEDIA STREAMING 有权
    方法和设备的多媒体流

    公开(公告)号：EP1606717A4

    公开(公告)日：2008-02-13

    申请号：EP04714378

    申请日：2004-02-25

    Applicant: NOKIA CORP

    Inventor： WANG RU-SHANG ,  VARSA VIKTOR ,  LEON DAVID ,  AKSU EMRE BARIS ,  CURCIO IGOR DANILO DIEGO

    IPC: H04L29/06

    CPC classification number: H04L65/608 ,  H04L29/06027 ,  H04L65/80

    Abstract: A method to provide to a sender of RTP packets the actual receiver buffer fullness level in a receiver of the RTP packets at a certain time instant represented as remaining playout duration in time. The receiver sends in an RTCP report the sequence number of a selected RTP packet in the receiver buffer and the time difference between the scheduled playout time of this packet and the current time. Based on this timing information, the sender calculates the amount of time it would take for the receiver buffer to empty if the receiver continues to playout at normal speed and no further RTP packets arrive to the receiver buffer. This receiver buffer fullness level information can be used at the sender to adjust the transmission rate and/or nominal playout rate of the RTP packets in order to maintain a targeted receiver buffer fullness level.

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