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    Packet scheduling in a communications system
    1.
    发明授权
    Packet scheduling in a communications system 有权
    通信系统中的分组调度

    公开(公告)号：US06850540B1

    公开(公告)日：2005-02-01

    申请号：US09698785

    申请日：2000-10-27

    申请人： Janne Johannes Peisa ,  Toomas Wigell ,  Reijo Matinmikko ,  Carl Göran Schultz

    发明人： Janne Johannes Peisa ,  Toomas Wigell ,  Reijo Matinmikko ,  Carl Göran Schultz

    IPC分类号： H04L12/28 ,  H04L12/56 ,  H04Q11/04 ,  H04W72/12 ,  H04J3/16 ,  H04J3/22

    CPC分类号： H04Q11/0478 ,  H04L12/5601 ,  H04L47/10 ,  H04L47/14 ,  H04L47/30 ,  H04L47/32 ,  H04L47/39 ,  H04L49/90 ,  H04L2012/5632 ,  H04L2012/5656 ,  H04W72/1236

    摘要： Methods, systems, and arrangements enable packet scheduling in accordance with quality of service (QoS) constraints for data flows. In a Universal Mobile Telecommunications System (UMTS) network environment, for example, a Medium Access Control (MAC) layer schedules packet transmission of various data flows to meet stipulated criteria, including permitted transport format combinations (TFCs) from a TFC set (TFCS). In first embodiment(s), the TFC is selected based on guaranteed rate transmission rates, weighted fair queuing (WFQ) transmission rates, QoS class, transport block set size (TBSS), and optionally queue fill levels. These first embodiment(s) also further refine the selection process using backlog memories corresponding to previously unmet guaranteed and/or fair transmission rates. In second embodiment(s), memory requirements are reduced by selecting a TFC based on guaranteed rate transmission rates, QoS class, TBSS, and queue fill levels, without accommodating backlogs.

    摘要翻译： 方法，系统和布置使得能够根据数据流的服务质量（QoS）约束来进行分组调度。 在通用移动通信系统（UMTS）网络环境中，例如，介质访问控制（MAC）层对各种数据流进行分组传输以满足规定的标准，包括来自TFC组（TFCS）的允许的传输格式组合（TFC） 。 在第一实施例中，基于保证速率传输速率，加权公平排队（WFQ）传输速率，QoS类别，传输块集大小（TBSS）和可选的队列填充级别来选择TFC。 这些第一实施例还使用与先前未满足的保证和/或公平传输速率相对应的备用存储器进一步改进选择过程。 在第二实施例中，通过基于保证的速率传输速率，QoS类别，TBSS和队列填充级别选择TFC来减少存储器需求，而不需要容纳积压。

    Frame synchronisation in a radio access network
    4.
    发明授权
    Frame synchronisation in a radio access network 有权
    无线接入网络中的帧同步

    公开(公告)号：US07626974B2

    公开(公告)日：2009-12-01

    申请号：US10578893

    申请日：2003-11-24

    申请人： Janne Johannes Peisa ,  Mats Fredrik Sagfors

    发明人： Janne Johannes Peisa ,  Mats Fredrik Sagfors

    IPC分类号： H04J3/06

    CPC分类号： H04B7/2693

    摘要： A method of optimizing the timing offsets with which data frames are transmitted over the Iur/Iub interfaces of a UMTS Terrestrial Radio Access Network, UTRAN. The method comprises, for a given Iur/Iub interface or set of Iur/Iub interfaces over which identical user plane data is to be sent, defining a duration of a data frame receiving window for use by the receiving node(s), transmitting data frames from a sending node with an initial timing offset sufficient to ensure a likelihood that the frames will be received at the or each receiving node within the defined receiving window, reducing the timing offset at the sending node in a stepwise manner, and adjusting the timing offset at the sending node in response to the receipt of late Time of Arrival error reports at the sending node. In a second embodiment, the frame synchronisation of frames corresponding to speech services and data services is carried out by delaying the frames corresponding to speech services a fixed delay and the frames corresponding to data services a variable delay based on a received time of arrival feedback.

    摘要翻译： 一种优化通过UMTS陆地无线电接入网络UTRAN的Iur / Iub接口传送数据帧的定时偏移的方法。 该方法包括对于给定的Iur / Iub接口或Iur / Iub接口的集合，在其上将要发送相同的用户平面数据，定义由接收节点使用的数据帧接收窗口的持续时间，传送数据 来自具有初始定时偏移的发送节点的帧足以确保帧将在所定义的接收窗口内的每个接收节点处被接收的可能性，以逐步的方式减少发送节点处的定时偏移，并且调整定时 响应于在发送节点接收到延迟的到达时间错误报告，在发送节点处偏移。 在第二实施例中，通过将对应于语音服务的帧延迟固定的延迟和对应于数据业务的帧，基于接收的到达时间反馈的可变延迟来执行对应于语音业务和数据业务的帧的帧同步。